Index: test/CodeGen/AArch64/extract-bits.ll
===================================================================
--- /dev/null
+++ test/CodeGen/AArch64/extract-bits.ll
@@ -0,0 +1,717 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s
+
+; *Please* keep in sync with test/CodeGen/X86/extract-bits.ll
+
+; https://bugs.llvm.org/show_bug.cgi?id=36419
+; https://bugs.llvm.org/show_bug.cgi?id=37603
+; https://bugs.llvm.org/show_bug.cgi?id=37610
+
+; Patterns:
+;   a) (x >> start) &  (1 << nbits) - 1
+;   b) (x >> start) & ~(-1 << nbits)
+;   c) (x >> start) &  (-1 >> (32 - y))
+;   d) (x >> start) << (32 - y) >> (32 - y)
+; are equivalent.
+
+; ---------------------------------------------------------------------------- ;
+; Pattern a. 32-bit
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_a0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_a0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    sub w9, w9, #1 // =1
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %shifted = lshr i32 %val, %numskipbits
+  %onebit = shl i32 1, %numlowbits
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a1_indexzext(i32 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_a1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    sub w9, w9, #1 // =1
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %onebit = shl i32 1, %conv
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_a2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    sub w9, w9, #1 // =1
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %onebit = shl i32 1, %numlowbits
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a3_load_indexzext(i32* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_a3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    sub w9, w9, #1 // =1
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %onebit = shl i32 1, %conv
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_a4_commutative:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    sub w9, w9, #1 // =1
+; CHECK-NEXT:    and w0, w8, w9
+; CHECK-NEXT:    ret
+  %shifted = lshr i32 %val, %numskipbits
+  %onebit = shl i32 1, %numlowbits
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %shifted, %mask ; swapped order
+  ret i32 %masked
+}
+
+; 64-bit
+
+define i64 @bextr64_a0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_a0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    sub x9, x9, #1 // =1
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %shifted = lshr i64 %val, %numskipbits
+  %onebit = shl i64 1, %numlowbits
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a1_indexzext(i64 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_a1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    // kill: def $w2 killed $w2 def $x2
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    sub x9, x9, #1 // =1
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %onebit = shl i64 1, %conv
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_a2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    sub x9, x9, #1 // =1
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %onebit = shl i64 1, %numlowbits
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a3_load_indexzext(i64* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_a3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    // kill: def $w2 killed $w2 def $x2
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    sub x9, x9, #1 // =1
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %onebit = shl i64 1, %conv
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_a4_commutative:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    sub x9, x9, #1 // =1
+; CHECK-NEXT:    and x0, x8, x9
+; CHECK-NEXT:    ret
+  %shifted = lshr i64 %val, %numskipbits
+  %onebit = shl i64 1, %numlowbits
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %shifted, %mask ; swapped order
+  ret i64 %masked
+}
+
+; ---------------------------------------------------------------------------- ;
+; Pattern b. 32-bit
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_b0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_b0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #-1
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    bic w0, w8, w9
+; CHECK-NEXT:    ret
+  %shifted = lshr i32 %val, %numskipbits
+  %notmask = shl i32 -1, %numlowbits
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b1_indexzext(i32 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_b1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #-1
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    bic w0, w8, w9
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %notmask = shl i32 -1, %conv
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_b2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    mov w9, #-1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    bic w0, w8, w9
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %notmask = shl i32 -1, %numlowbits
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b3_load_indexzext(i32* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_b3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    mov w9, #-1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    bic w0, w8, w9
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %notmask = shl i32 -1, %conv
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_b4_commutative:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov w9, #-1
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    lsl w9, w9, w2
+; CHECK-NEXT:    bic w0, w8, w9
+; CHECK-NEXT:    ret
+  %shifted = lshr i32 %val, %numskipbits
+  %notmask = shl i32 -1, %numlowbits
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %shifted, %mask ; swapped order
+  ret i32 %masked
+}
+
+; 64-bit
+
+define i64 @bextr64_b0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_b0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov x9, #-1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    bic x0, x8, x9
+; CHECK-NEXT:    ret
+  %shifted = lshr i64 %val, %numskipbits
+  %notmask = shl i64 -1, %numlowbits
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b1_indexzext(i64 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_b1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov x9, #-1
+; CHECK-NEXT:    // kill: def $w2 killed $w2 def $x2
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    bic x0, x8, x9
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %notmask = shl i64 -1, %conv
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_b2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    mov x9, #-1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    bic x0, x8, x9
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %notmask = shl i64 -1, %numlowbits
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b3_load_indexzext(i64* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_b3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    mov x9, #-1
+; CHECK-NEXT:    // kill: def $w2 killed $w2 def $x2
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    bic x0, x8, x9
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %notmask = shl i64 -1, %conv
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_b4_commutative:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    mov x9, #-1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    lsl x9, x9, x2
+; CHECK-NEXT:    bic x0, x8, x9
+; CHECK-NEXT:    ret
+  %shifted = lshr i64 %val, %numskipbits
+  %notmask = shl i64 -1, %numlowbits
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %shifted, %mask ; swapped order
+  ret i64 %masked
+}
+
+; ---------------------------------------------------------------------------- ;
+; Pattern c. 32-bit
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_c0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_c0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    neg w9, w2
+; CHECK-NEXT:    mov w10, #-1
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    lsr w9, w10, w9
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %mask = lshr i32 -1, %numhighbits
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c1_indexzext(i32 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_c1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x20
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    mov w10, #-1
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    lsr w9, w10, w9
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %mask = lshr i32 -1, %sh_prom
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_c2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    neg w9, w2
+; CHECK-NEXT:    mov w10, #-1
+; CHECK-NEXT:    lsr w9, w10, w9
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %mask = lshr i32 -1, %numhighbits
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c3_load_indexzext(i32* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_c3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x20
+; CHECK-NEXT:    mov w10, #-1
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    lsr w9, w10, w9
+; CHECK-NEXT:    and w0, w9, w8
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %mask = lshr i32 -1, %sh_prom
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_c4_commutative:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    neg w9, w2
+; CHECK-NEXT:    mov w10, #-1
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    lsr w9, w10, w9
+; CHECK-NEXT:    and w0, w8, w9
+; CHECK-NEXT:    ret
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %mask = lshr i32 -1, %numhighbits
+  %masked = and i32 %shifted, %mask ; swapped order
+  ret i32 %masked
+}
+
+; 64-bit
+
+define i64 @bextr64_c0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_c0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    neg x9, x2
+; CHECK-NEXT:    mov x10, #-1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    lsr x9, x10, x9
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %mask = lshr i64 -1, %numhighbits
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c1_indexzext(i64 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_c1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x40
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    mov x10, #-1
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    lsr x9, x10, x9
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %mask = lshr i64 -1, %sh_prom
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_c2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    neg x9, x2
+; CHECK-NEXT:    mov x10, #-1
+; CHECK-NEXT:    lsr x9, x10, x9
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %mask = lshr i64 -1, %numhighbits
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c3_load_indexzext(i64* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_c3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x40
+; CHECK-NEXT:    mov x10, #-1
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    lsr x9, x10, x9
+; CHECK-NEXT:    and x0, x9, x8
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %mask = lshr i64 -1, %sh_prom
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_c4_commutative:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    neg x9, x2
+; CHECK-NEXT:    mov x10, #-1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    lsr x9, x10, x9
+; CHECK-NEXT:    and x0, x8, x9
+; CHECK-NEXT:    ret
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %mask = lshr i64 -1, %numhighbits
+  %masked = and i64 %shifted, %mask ; swapped order
+  ret i64 %masked
+}
+
+; ---------------------------------------------------------------------------- ;
+; Pattern d. 32-bit.
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_d0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_d0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    neg w9, w2
+; CHECK-NEXT:    lsl w8, w8, w9
+; CHECK-NEXT:    lsr w0, w8, w9
+; CHECK-NEXT:    ret
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %highbitscleared = shl i32 %shifted, %numhighbits
+  %masked = lshr i32 %highbitscleared, %numhighbits
+  ret i32 %masked
+}
+
+define i32 @bextr32_d1_indexzext(i32 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_d1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x20
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr w8, w0, w1
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    lsl w8, w8, w9
+; CHECK-NEXT:    lsr w0, w8, w9
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %highbitscleared = shl i32 %shifted, %sh_prom
+  %masked = lshr i32 %highbitscleared, %sh_prom
+  ret i32 %masked
+}
+
+define i32 @bextr32_d2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_d2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    neg w9, w2
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    lsl w8, w8, w9
+; CHECK-NEXT:    lsr w0, w8, w9
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %highbitscleared = shl i32 %shifted, %numhighbits
+  %masked = lshr i32 %highbitscleared, %numhighbits
+  ret i32 %masked
+}
+
+define i32 @bextr32_d3_load_indexzext(i32* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr32_d3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr w8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x20
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    lsr w8, w8, w1
+; CHECK-NEXT:    lsl w8, w8, w9
+; CHECK-NEXT:    lsr w0, w8, w9
+; CHECK-NEXT:    ret
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %highbitscleared = shl i32 %shifted, %sh_prom
+  %masked = lshr i32 %highbitscleared, %sh_prom
+  ret i32 %masked
+}
+
+; 64-bit.
+
+define i64 @bextr64_d0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_d0:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    neg x9, x2
+; CHECK-NEXT:    lsl x8, x8, x9
+; CHECK-NEXT:    lsr x0, x8, x9
+; CHECK-NEXT:    ret
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %highbitscleared = shl i64 %shifted, %numhighbits
+  %masked = lshr i64 %highbitscleared, %numhighbits
+  ret i64 %masked
+}
+
+define i64 @bextr64_d1_indexzext(i64 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_d1_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    orr w9, wzr, #0x40
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    lsr x8, x0, x1
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    lsl x8, x8, x9
+; CHECK-NEXT:    lsr x0, x8, x9
+; CHECK-NEXT:    ret
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %highbitscleared = shl i64 %shifted, %sh_prom
+  %masked = lshr i64 %highbitscleared, %sh_prom
+  ret i64 %masked
+}
+
+define i64 @bextr64_d2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_d2_load:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    neg x9, x2
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    lsl x8, x8, x9
+; CHECK-NEXT:    lsr x0, x8, x9
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %highbitscleared = shl i64 %shifted, %numhighbits
+  %masked = lshr i64 %highbitscleared, %numhighbits
+  ret i64 %masked
+}
+
+define i64 @bextr64_d3_load_indexzext(i64* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; CHECK-LABEL: bextr64_d3_load_indexzext:
+; CHECK:       // %bb.0:
+; CHECK-NEXT:    ldr x8, [x0]
+; CHECK-NEXT:    orr w9, wzr, #0x40
+; CHECK-NEXT:    // kill: def $w1 killed $w1 def $x1
+; CHECK-NEXT:    sub w9, w9, w2
+; CHECK-NEXT:    lsr x8, x8, x1
+; CHECK-NEXT:    lsl x8, x8, x9
+; CHECK-NEXT:    lsr x0, x8, x9
+; CHECK-NEXT:    ret
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %highbitscleared = shl i64 %shifted, %sh_prom
+  %masked = lshr i64 %highbitscleared, %sh_prom
+  ret i64 %masked
+}
Index: test/CodeGen/X86/extract-bits.ll
===================================================================
--- /dev/null
+++ test/CodeGen/X86/extract-bits.ll
@@ -0,0 +1,5562 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,NOBMI,X86-NOBMI
+; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1NOTBM,X86-BMI1NOTBM
+; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1TBM,X86-BMI1TBM
+; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1BMI2,X86-BMI1BMI2,BMI1TBM,X86-BMI1TBM,BMI1TBMBMI2,X86-BMI1TBMBMI2
+; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1BMI2,X86-BMI1BMI2,BMI1NOTBMBMI2,X86-BMI1NOTBMBMI2
+; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,NOBMI,X64-NOBMI
+; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1NOTBM,X64-BMI1NOTBM
+; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1TBM,X64-BMI1TBM
+; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1BMI2,X64-BMI1BMI2,BMI1TBM,X64-BMI1TBM,BMI1TBMBMI2,X64-BMI1TBMBMI2
+; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1BMI2,X64-BMI1BMI2,BMI1NOTBMBMI2,X64-BMI1NOTBMBMI2
+
+; *Please* keep in sync with test/CodeGen/AArch64/extract-bits.ll
+
+; https://bugs.llvm.org/show_bug.cgi?id=36419
+; https://bugs.llvm.org/show_bug.cgi?id=37603
+; https://bugs.llvm.org/show_bug.cgi?id=37610
+
+; Patterns:
+;   a) (x >> start) &  (1 << nbits) - 1
+;   b) (x >> start) & ~(-1 << nbits)
+;   c) (x >> start) &  (-1 >> (32 - y))
+;   d) (x >> start) << (32 - y) >> (32 - y)
+; are equivalent.
+
+declare void @use32(i32)
+declare void @use64(i64)
+
+; ---------------------------------------------------------------------------- ;
+; Pattern a. 32-bit
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_a0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_a0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    decl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_a0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_a0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_a0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    decl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_a0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_a0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %onebit = shl i32 1, %numlowbits
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a1_indexzext(i32 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_a1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    decl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_a1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_a1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_a1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    decl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_a1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_a1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %onebit = shl i32 1, %conv
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_a2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    decl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_a2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %esi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_a2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_a2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %edi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    decl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_a2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %edi
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_a2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %onebit = shl i32 1, %numlowbits
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a3_load_indexzext(i32* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_a3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    decl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_a3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %esi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_a3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_a3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %edi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    decl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_a3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %edi
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_a3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %onebit = shl i32 1, %conv
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_a4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_a4_commutative:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    decl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_a4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_a4_commutative:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_a4_commutative:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    decl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_a4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_a4_commutative:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %onebit = shl i32 1, %numlowbits
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %shifted, %mask ; swapped order
+  ret i32 %masked
+}
+
+define i32 @bextr32_a5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_a5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    pushl %eax
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    movl $1, %esi
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %esi
+; X86-NOBMI-NEXT:    decl %esi
+; X86-NOBMI-NEXT:    andl %edi, %esi
+; X86-NOBMI-NEXT:    movl %eax, (%esp)
+; X86-NOBMI-NEXT:    calll use32
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:    addl $4, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_a5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    pushl %eax
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    movl $1, %esi
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    decl %esi
+; X86-BMI1NOTBM-NEXT:    andl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, (%esp)
+; X86-BMI1NOTBM-NEXT:    calll use32
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    addl $4, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_a5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %edx, %esi
+; X86-BMI1BMI2-NEXT:    movl %ecx, (%esp)
+; X86-BMI1BMI2-NEXT:    calll use32
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    addl $8, %esp
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_a5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $1, %ebx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %ebx
+; X64-NOBMI-NEXT:    decl %ebx
+; X64-NOBMI-NEXT:    andl %edi, %ebx
+; X64-NOBMI-NEXT:    movl %esi, %edi
+; X64-NOBMI-NEXT:    callq use32
+; X64-NOBMI-NEXT:    movl %ebx, %eax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_a5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $1, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X64-BMI1NOTBM-NEXT:    decl %ebx
+; X64-BMI1NOTBM-NEXT:    andl %edi, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X64-BMI1NOTBM-NEXT:    callq use32
+; X64-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_a5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %ebx
+; X64-BMI1BMI2-NEXT:    movl %esi, %edi
+; X64-BMI1BMI2-NEXT:    callq use32
+; X64-BMI1BMI2-NEXT:    movl %ebx, %eax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %onebit = shl i32 1, %numlowbits
+  %mask = add nsw i32 %onebit, -1
+  %masked = and i32 %mask, %shifted
+  call void @use32(i32 %numskipbits)
+  ret i32 %masked
+}
+
+; 64-bit
+
+define i64 @bextr64_a0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_a0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB6_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB6_2:
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shldl %cl, %eax, %edx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB6_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB6_4:
+; X86-NOBMI-NEXT:    addl $-1, %eax
+; X86-NOBMI-NEXT:    adcl $-1, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_a0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB6_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB6_2:
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    movb %ch, %cl
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %ch
+; X86-BMI1NOTBM-NEXT:    je .LBB6_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB6_4:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_a0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %bl
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB6_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB6_2:
+; X86-BMI1BMI2-NEXT:    movl $1, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    movl %ebx, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shlxl %ebx, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %bl
+; X86-BMI1BMI2-NEXT:    je .LBB6_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:    xorl %eax, %eax
+; X86-BMI1BMI2-NEXT:  .LBB6_4:
+; X86-BMI1BMI2-NEXT:    addl $-1, %eax
+; X86-BMI1BMI2-NEXT:    adcl $-1, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_a0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    decq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_a0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_a0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %onebit = shl i64 1, %numlowbits
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a1_indexzext(i64 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_a1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB7_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB7_2:
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shldl %cl, %eax, %edx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB7_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB7_4:
+; X86-NOBMI-NEXT:    addl $-1, %eax
+; X86-NOBMI-NEXT:    adcl $-1, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_a1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB7_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB7_2:
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    movb %ch, %cl
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %ch
+; X86-BMI1NOTBM-NEXT:    je .LBB7_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB7_4:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_a1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %bl
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB7_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB7_2:
+; X86-BMI1BMI2-NEXT:    movl $1, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    movl %ebx, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shlxl %ebx, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %bl
+; X86-BMI1BMI2-NEXT:    je .LBB7_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:    xorl %eax, %eax
+; X86-BMI1BMI2-NEXT:  .LBB7_4:
+; X86-BMI1BMI2-NEXT:    addl $-1, %eax
+; X86-BMI1BMI2-NEXT:    adcl $-1, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_a1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    decq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_a1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_a1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %onebit = shl i64 1, %conv
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_a2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    movl 4(%eax), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB8_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB8_2:
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shldl %cl, %eax, %edx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB8_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB8_4:
+; X86-NOBMI-NEXT:    addl $-1, %eax
+; X86-NOBMI-NEXT:    adcl $-1, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_a2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %esi
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB8_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB8_2:
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    movb %ch, %cl
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %ch
+; X86-BMI1NOTBM-NEXT:    je .LBB8_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB8_4:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_a2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %bl
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl (%eax), %esi
+; X86-BMI1BMI2-NEXT:    movl 4(%eax), %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB8_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB8_2:
+; X86-BMI1BMI2-NEXT:    movl $1, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    movl %ebx, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shlxl %ebx, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %bl
+; X86-BMI1BMI2-NEXT:    je .LBB8_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:    xorl %eax, %eax
+; X86-BMI1BMI2-NEXT:  .LBB8_4:
+; X86-BMI1BMI2-NEXT:    addl $-1, %eax
+; X86-BMI1BMI2-NEXT:    adcl $-1, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_a2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rdi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    decq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_a2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rdi
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_a2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %onebit = shl i64 1, %numlowbits
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a3_load_indexzext(i64* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_a3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    movl 4(%eax), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB9_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB9_2:
+; X86-NOBMI-NEXT:    movl $1, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shldl %cl, %eax, %edx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB9_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB9_4:
+; X86-NOBMI-NEXT:    addl $-1, %eax
+; X86-NOBMI-NEXT:    adcl $-1, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_a3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %esi
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB9_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB9_2:
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    movb %ch, %cl
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %ch
+; X86-BMI1NOTBM-NEXT:    je .LBB9_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB9_4:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_a3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %bl
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl (%eax), %esi
+; X86-BMI1BMI2-NEXT:    movl 4(%eax), %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB9_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB9_2:
+; X86-BMI1BMI2-NEXT:    movl $1, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    movl %ebx, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shlxl %ebx, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %bl
+; X86-BMI1BMI2-NEXT:    je .LBB9_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:    xorl %eax, %eax
+; X86-BMI1BMI2-NEXT:  .LBB9_4:
+; X86-BMI1BMI2-NEXT:    addl $-1, %eax
+; X86-BMI1BMI2-NEXT:    adcl $-1, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_a3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rdi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    decq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_a3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rdi
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_a3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %onebit = shl i64 1, %conv
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_a4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_a4_commutative:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl %esi, %edx
+; X86-NOBMI-NEXT:    shrl %cl, %edx
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB10_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:  .LBB10_2:
+; X86-NOBMI-NEXT:    movl $1, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shldl %cl, %esi, %edi
+; X86-NOBMI-NEXT:    shll %cl, %esi
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB10_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %esi, %edi
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:  .LBB10_4:
+; X86-NOBMI-NEXT:    addl $-1, %esi
+; X86-NOBMI-NEXT:    adcl $-1, %edi
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_a4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %esi, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB10_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB10_2:
+; X86-BMI1NOTBM-NEXT:    movl $1, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:    movb %ch, %cl
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %esi, %edi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %ch
+; X86-BMI1NOTBM-NEXT:    je .LBB10_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB10_4:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_a4_commutative:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %bl
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB10_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB10_2:
+; X86-BMI1BMI2-NEXT:    movl $1, %edi
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:    movl %ebx, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %esi
+; X86-BMI1BMI2-NEXT:    shlxl %ebx, %edi, %ecx
+; X86-BMI1BMI2-NEXT:    testb $32, %bl
+; X86-BMI1BMI2-NEXT:    je .LBB10_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ecx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %ecx, %ecx
+; X86-BMI1BMI2-NEXT:  .LBB10_4:
+; X86-BMI1BMI2-NEXT:    addl $-1, %ecx
+; X86-BMI1BMI2-NEXT:    adcl $-1, %esi
+; X86-BMI1BMI2-NEXT:    andl %ecx, %eax
+; X86-BMI1BMI2-NEXT:    andl %esi, %edx
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_a4_commutative:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movl $1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    decq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_a4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_a4_commutative:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %onebit = shl i64 1, %numlowbits
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %shifted, %mask ; swapped order
+  ret i64 %masked
+}
+
+define i64 @bextr64_a5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_a5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebp
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    subl $12, %esp
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %ebx
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %esi, %ebp
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %ebp
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %ebx
+; X86-NOBMI-NEXT:    testb $32, %al
+; X86-NOBMI-NEXT:    je .LBB11_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %ebp, %ebx
+; X86-NOBMI-NEXT:    xorl %ebp, %ebp
+; X86-NOBMI-NEXT:  .LBB11_2:
+; X86-NOBMI-NEXT:    movl $1, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shldl %cl, %esi, %edi
+; X86-NOBMI-NEXT:    shll %cl, %esi
+; X86-NOBMI-NEXT:    testb $32, %dl
+; X86-NOBMI-NEXT:    je .LBB11_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %esi, %edi
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:  .LBB11_4:
+; X86-NOBMI-NEXT:    addl $-1, %esi
+; X86-NOBMI-NEXT:    adcl $-1, %edi
+; X86-NOBMI-NEXT:    andl %ebx, %esi
+; X86-NOBMI-NEXT:    andl %ebp, %edi
+; X86-NOBMI-NEXT:    subl $8, %esp
+; X86-NOBMI-NEXT:    pushl {{[0-9]+}}(%esp)
+; X86-NOBMI-NEXT:    pushl %eax
+; X86-NOBMI-NEXT:    calll use64
+; X86-NOBMI-NEXT:    addl $16, %esp
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:    movl %edi, %edx
+; X86-NOBMI-NEXT:    addl $12, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    popl %ebp
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_a5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebp
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    subl $12, %esp
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %ebx
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebp
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %ebp
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %esi, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB11_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %ebp, %ebx
+; X86-BMI1NOTBM-NEXT:    xorl %ebp, %ebp
+; X86-BMI1NOTBM-NEXT:  .LBB11_2:
+; X86-BMI1NOTBM-NEXT:    movl $1, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %esi, %edi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %dl
+; X86-BMI1NOTBM-NEXT:    je .LBB11_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB11_4:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    andl %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    andl %ebp, %edi
+; X86-BMI1NOTBM-NEXT:    subl $8, %esp
+; X86-BMI1NOTBM-NEXT:    pushl {{[0-9]+}}(%esp)
+; X86-BMI1NOTBM-NEXT:    pushl %eax
+; X86-BMI1NOTBM-NEXT:    calll use64
+; X86-BMI1NOTBM-NEXT:    addl $16, %esp
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    addl $12, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    popl %ebp
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_a5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebp
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    subl $12, %esp
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ebx
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %ebx
+; X86-BMI1BMI2-NEXT:    shrxl %eax, %esi, %ebp
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB11_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %ebp, %ebx
+; X86-BMI1BMI2-NEXT:    xorl %ebp, %ebp
+; X86-BMI1BMI2-NEXT:  .LBB11_2:
+; X86-BMI1BMI2-NEXT:    movl $1, %edi
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:    movl %edx, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %esi
+; X86-BMI1BMI2-NEXT:    shlxl %edx, %edi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %dl
+; X86-BMI1BMI2-NEXT:    je .LBB11_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB11_4:
+; X86-BMI1BMI2-NEXT:    addl $-1, %edi
+; X86-BMI1BMI2-NEXT:    adcl $-1, %esi
+; X86-BMI1BMI2-NEXT:    andl %ebx, %edi
+; X86-BMI1BMI2-NEXT:    andl %ebp, %esi
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    pushl {{[0-9]+}}(%esp)
+; X86-BMI1BMI2-NEXT:    pushl %eax
+; X86-BMI1BMI2-NEXT:    calll use64
+; X86-BMI1BMI2-NEXT:    addl $16, %esp
+; X86-BMI1BMI2-NEXT:    movl %edi, %eax
+; X86-BMI1BMI2-NEXT:    movl %esi, %edx
+; X86-BMI1BMI2-NEXT:    addl $12, %esp
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    popl %ebp
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_a5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movl $1, %ebx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rbx
+; X64-NOBMI-NEXT:    decq %rbx
+; X64-NOBMI-NEXT:    andq %rdi, %rbx
+; X64-NOBMI-NEXT:    movq %rsi, %rdi
+; X64-NOBMI-NEXT:    callq use64
+; X64-NOBMI-NEXT:    movq %rbx, %rax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_a5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movl $1, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rbx
+; X64-BMI1NOTBM-NEXT:    decq %rbx
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rbx
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rdi
+; X64-BMI1NOTBM-NEXT:    callq use64
+; X64-BMI1NOTBM-NEXT:    movq %rbx, %rax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_a5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rbx
+; X64-BMI1BMI2-NEXT:    movq %rsi, %rdi
+; X64-BMI1BMI2-NEXT:    callq use64
+; X64-BMI1BMI2-NEXT:    movq %rbx, %rax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %onebit = shl i64 1, %numlowbits
+  %mask = add nsw i64 %onebit, -1
+  %masked = and i64 %mask, %shifted
+  call void @use64(i64 %numskipbits)
+  ret i64 %masked
+}
+
+; ---------------------------------------------------------------------------- ;
+; Pattern b. 32-bit
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_b0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_b0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_b0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_b0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_b0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $-1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    notl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_b0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl %edi, %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_b0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %notmask = shl i32 -1, %numlowbits
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b1_indexzext(i32 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_b1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_b1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_b1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_b1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $-1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    notl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_b1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl %edi, %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_b1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %notmask = shl i32 -1, %conv
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_b2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_b2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl (%edx), %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_b2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_b2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %edi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $-1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    notl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_b2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X64-BMI1NOTBM-NEXT:    andnl %eax, %esi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_b2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %notmask = shl i32 -1, %numlowbits
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b3_load_indexzext(i32* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_b3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_b3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl (%edx), %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_b3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_b3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %edi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $-1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    notl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_b3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X64-BMI1NOTBM-NEXT:    andnl %eax, %esi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_b3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %conv = zext i8 %numlowbits to i32
+  %notmask = shl i32 -1, %conv
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_b4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_b4_commutative:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_b4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_b4_commutative:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_b4_commutative:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $-1, %eax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    notl %eax
+; X64-NOBMI-NEXT:    andl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_b4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl %edi, %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_b4_commutative:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %notmask = shl i32 -1, %numlowbits
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %shifted, %mask ; swapped order
+  ret i32 %masked
+}
+
+define i32 @bextr32_b5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_b5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    pushl %eax
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    movl $-1, %esi
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %esi
+; X86-NOBMI-NEXT:    notl %esi
+; X86-NOBMI-NEXT:    andl %edi, %esi
+; X86-NOBMI-NEXT:    movl %eax, (%esp)
+; X86-NOBMI-NEXT:    calll use32
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:    addl $4, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_b5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    pushl %eax
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X86-BMI1NOTBM-NEXT:    andnl %esi, %edi, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, (%esp)
+; X86-BMI1NOTBM-NEXT:    calll use32
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    addl $4, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_b5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %edx, %esi
+; X86-BMI1BMI2-NEXT:    movl %ecx, (%esp)
+; X86-BMI1BMI2-NEXT:    calll use32
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    addl $8, %esp
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_b5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl $-1, %ebx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %ebx
+; X64-NOBMI-NEXT:    notl %ebx
+; X64-NOBMI-NEXT:    andl %edi, %ebx
+; X64-NOBMI-NEXT:    movl %esi, %edi
+; X64-NOBMI-NEXT:    callq use32
+; X64-NOBMI-NEXT:    movl %ebx, %eax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_b5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl %edi, %eax, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X64-BMI1NOTBM-NEXT:    callq use32
+; X64-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_b5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %ebx
+; X64-BMI1BMI2-NEXT:    movl %esi, %edi
+; X64-BMI1BMI2-NEXT:    callq use32
+; X64-BMI1BMI2-NEXT:    movl %ebx, %eax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %notmask = shl i32 -1, %numlowbits
+  %mask = xor i32 %notmask, -1
+  %masked = and i32 %mask, %shifted
+  call void @use32(i32 %numskipbits)
+  ret i32 %masked
+}
+
+; 64-bit
+
+define i64 @bextr64_b0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_b0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB18_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB18_2:
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    shldl %cl, %edx, %edx
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB18_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB18_4:
+; X86-NOBMI-NEXT:    notl %edx
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_b0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB18_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB18_2:
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB18_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB18_4:
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_b0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB18_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB18_2:
+; X86-BMI1BMI2-NEXT:    movl $-1, %edi
+; X86-BMI1BMI2-NEXT:    shlxl %eax, %edi, %ebx
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB18_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edi
+; X86-BMI1BMI2-NEXT:    xorl %ebx, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB18_4:
+; X86-BMI1BMI2-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1BMI2-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_b0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq $-1, %rax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    notq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_b0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq %rdi, %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_b0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %notmask = shl i64 -1, %numlowbits
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b1_indexzext(i64 %val, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_b1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB19_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB19_2:
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    shldl %cl, %edx, %edx
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB19_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB19_4:
+; X86-NOBMI-NEXT:    notl %edx
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_b1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB19_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB19_2:
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB19_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB19_4:
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_b1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB19_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB19_2:
+; X86-BMI1BMI2-NEXT:    movl $-1, %edi
+; X86-BMI1BMI2-NEXT:    shlxl %eax, %edi, %ebx
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB19_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edi
+; X86-BMI1BMI2-NEXT:    xorl %ebx, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB19_4:
+; X86-BMI1BMI2-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1BMI2-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_b1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq $-1, %rax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    notq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_b1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq %rdi, %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_b1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %notmask = shl i64 -1, %conv
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_b2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    movl 4(%eax), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB20_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB20_2:
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    shldl %cl, %edx, %edx
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB20_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB20_4:
+; X86-NOBMI-NEXT:    notl %edx
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_b2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl (%edx), %esi
+; X86-BMI1NOTBM-NEXT:    movl 4(%edx), %edi
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB20_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB20_2:
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB20_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB20_4:
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_b2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    movl (%edx), %esi
+; X86-BMI1BMI2-NEXT:    movl 4(%edx), %edi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edi, %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edi, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB20_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB20_2:
+; X86-BMI1BMI2-NEXT:    movl $-1, %edi
+; X86-BMI1BMI2-NEXT:    shlxl %eax, %edi, %ebx
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB20_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edi
+; X86-BMI1BMI2-NEXT:    xorl %ebx, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB20_4:
+; X86-BMI1BMI2-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1BMI2-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_b2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rdi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq $-1, %rax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    notq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_b2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rsi
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rsi
+; X64-BMI1NOTBM-NEXT:    andnq %rax, %rsi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_b2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %notmask = shl i64 -1, %numlowbits
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b3_load_indexzext(i64* %w, i8 zeroext %numskipbits, i8 zeroext %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_b3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    movl 4(%eax), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB21_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB21_2:
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    shldl %cl, %edx, %edx
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB21_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB21_4:
+; X86-NOBMI-NEXT:    notl %edx
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    notl %eax
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_b3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl (%edx), %esi
+; X86-BMI1NOTBM-NEXT:    movl 4(%edx), %edi
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB21_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB21_2:
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB21_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB21_4:
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_b3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    movl (%edx), %esi
+; X86-BMI1BMI2-NEXT:    movl 4(%edx), %edi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edi, %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edi, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB21_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB21_2:
+; X86-BMI1BMI2-NEXT:    movl $-1, %edi
+; X86-BMI1BMI2-NEXT:    shlxl %eax, %edi, %ebx
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB21_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edi
+; X86-BMI1BMI2-NEXT:    xorl %ebx, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB21_4:
+; X86-BMI1BMI2-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1BMI2-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_b3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rdi
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq $-1, %rax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    notq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_b3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rsi
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rsi
+; X64-BMI1NOTBM-NEXT:    andnq %rax, %rsi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_b3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %conv = zext i8 %numlowbits to i64
+  %notmask = shl i64 -1, %conv
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_b4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_b4_commutative:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %ch
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl %esi, %edx
+; X86-NOBMI-NEXT:    shrl %cl, %edx
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB22_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:  .LBB22_2:
+; X86-NOBMI-NEXT:    movl $-1, %edi
+; X86-NOBMI-NEXT:    movl $-1, %esi
+; X86-NOBMI-NEXT:    movb %ch, %cl
+; X86-NOBMI-NEXT:    shll %cl, %esi
+; X86-NOBMI-NEXT:    shldl %cl, %edi, %edi
+; X86-NOBMI-NEXT:    testb $32, %ch
+; X86-NOBMI-NEXT:    je .LBB22_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %esi, %edi
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:  .LBB22_4:
+; X86-NOBMI-NEXT:    notl %edi
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    notl %esi
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_b4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB22_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB22_2:
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB22_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB22_4:
+; X86-BMI1NOTBM-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_b4_commutative:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB22_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB22_2:
+; X86-BMI1BMI2-NEXT:    movl $-1, %edi
+; X86-BMI1BMI2-NEXT:    shlxl %eax, %edi, %ebx
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB22_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edi
+; X86-BMI1BMI2-NEXT:    xorl %ebx, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB22_4:
+; X86-BMI1BMI2-NEXT:    andnl %edx, %edi, %edx
+; X86-BMI1BMI2-NEXT:    andnl %esi, %ebx, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_b4_commutative:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq $-1, %rax
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    notq %rax
+; X64-NOBMI-NEXT:    andq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_b4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq %rdi, %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_b4_commutative:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %notmask = shl i64 -1, %numlowbits
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %shifted, %mask ; swapped order
+  ret i64 %masked
+}
+
+define i64 @bextr64_b5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_b5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebp
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    subl $12, %esp
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %ebx
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %esi, %ebp
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %ebp
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %ebx
+; X86-NOBMI-NEXT:    testb $32, %al
+; X86-NOBMI-NEXT:    je .LBB23_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %ebp, %ebx
+; X86-NOBMI-NEXT:    xorl %ebp, %ebp
+; X86-NOBMI-NEXT:  .LBB23_2:
+; X86-NOBMI-NEXT:    movl $-1, %esi
+; X86-NOBMI-NEXT:    movl $-1, %edi
+; X86-NOBMI-NEXT:    movl %edx, %ecx
+; X86-NOBMI-NEXT:    shll %cl, %edi
+; X86-NOBMI-NEXT:    shldl %cl, %esi, %esi
+; X86-NOBMI-NEXT:    testb $32, %dl
+; X86-NOBMI-NEXT:    je .LBB23_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB23_4:
+; X86-NOBMI-NEXT:    notl %esi
+; X86-NOBMI-NEXT:    andl %ebp, %esi
+; X86-NOBMI-NEXT:    notl %edi
+; X86-NOBMI-NEXT:    andl %ebx, %edi
+; X86-NOBMI-NEXT:    subl $8, %esp
+; X86-NOBMI-NEXT:    pushl {{[0-9]+}}(%esp)
+; X86-NOBMI-NEXT:    pushl %eax
+; X86-NOBMI-NEXT:    calll use64
+; X86-NOBMI-NEXT:    addl $16, %esp
+; X86-NOBMI-NEXT:    movl %edi, %eax
+; X86-NOBMI-NEXT:    movl %esi, %edx
+; X86-NOBMI-NEXT:    addl $12, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    popl %ebp
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_b5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebp
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    subl $12, %esp
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %ebx
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %ebx, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB23_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB23_2:
+; X86-BMI1NOTBM-NEXT:    movl $-1, %ebx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %ebp
+; X86-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %ebp
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %dl
+; X86-BMI1NOTBM-NEXT:    je .LBB23_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %ebp, %ebx
+; X86-BMI1NOTBM-NEXT:    xorl %ebp, %ebp
+; X86-BMI1NOTBM-NEXT:  .LBB23_4:
+; X86-BMI1NOTBM-NEXT:    andnl %esi, %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    andnl %edi, %ebp, %edi
+; X86-BMI1NOTBM-NEXT:    subl $8, %esp
+; X86-BMI1NOTBM-NEXT:    pushl {{[0-9]+}}(%esp)
+; X86-BMI1NOTBM-NEXT:    pushl %eax
+; X86-BMI1NOTBM-NEXT:    calll use64
+; X86-BMI1NOTBM-NEXT:    addl $16, %esp
+; X86-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edx
+; X86-BMI1NOTBM-NEXT:    addl $12, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    popl %ebp
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_b5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebp
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    subl $12, %esp
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %edi
+; X86-BMI1BMI2-NEXT:    shrxl %eax, %esi, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB23_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %esi, %edi
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:  .LBB23_2:
+; X86-BMI1BMI2-NEXT:    movl $-1, %ebp
+; X86-BMI1BMI2-NEXT:    shlxl %edx, %ebp, %ebx
+; X86-BMI1BMI2-NEXT:    movl %edx, %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %ebp, %ebp
+; X86-BMI1BMI2-NEXT:    testb $32, %dl
+; X86-BMI1BMI2-NEXT:    je .LBB23_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %ebp
+; X86-BMI1BMI2-NEXT:    xorl %ebx, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB23_4:
+; X86-BMI1BMI2-NEXT:    andnl %esi, %ebp, %esi
+; X86-BMI1BMI2-NEXT:    andnl %edi, %ebx, %edi
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    pushl {{[0-9]+}}(%esp)
+; X86-BMI1BMI2-NEXT:    pushl %eax
+; X86-BMI1BMI2-NEXT:    calll use64
+; X86-BMI1BMI2-NEXT:    addl $16, %esp
+; X86-BMI1BMI2-NEXT:    movl %edi, %eax
+; X86-BMI1BMI2-NEXT:    movl %esi, %edx
+; X86-BMI1BMI2-NEXT:    addl $12, %esp
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    popl %ebp
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_b5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq $-1, %rbx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rbx
+; X64-NOBMI-NEXT:    notq %rbx
+; X64-NOBMI-NEXT:    andq %rdi, %rbx
+; X64-NOBMI-NEXT:    movq %rsi, %rdi
+; X64-NOBMI-NEXT:    callq use64
+; X64-NOBMI-NEXT:    movq %rbx, %rax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_b5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq %rdi, %rax, %rbx
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rdi
+; X64-BMI1NOTBM-NEXT:    callq use64
+; X64-BMI1NOTBM-NEXT:    movq %rbx, %rax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_b5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rbx
+; X64-BMI1BMI2-NEXT:    movq %rsi, %rdi
+; X64-BMI1BMI2-NEXT:    callq use64
+; X64-BMI1BMI2-NEXT:    movq %rbx, %rax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %notmask = shl i64 -1, %numlowbits
+  %mask = xor i64 %notmask, -1
+  %masked = and i64 %mask, %shifted
+  call void @use64(i64 %numskipbits)
+  ret i64 %masked
+}
+
+; ---------------------------------------------------------------------------- ;
+; Pattern c. 32-bit
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_c0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_c0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_c0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_c0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_c0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %edi
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_c0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_c0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %mask = lshr i32 -1, %numhighbits
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c1_indexzext(i32 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_c1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_c1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_c1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_c1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    negb %al
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %edi
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_c1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    negb %al
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_c1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %mask = lshr i32 -1, %sh_prom
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_c2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_c2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_c2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_c2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    negl %edx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_c2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    negl %edx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_c2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %mask = lshr i32 -1, %numhighbits
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c3_load_indexzext(i32* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_c3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_c3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_c3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_c3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    negb %dl
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_c3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    negb %dl
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_c3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %mask = lshr i32 -1, %sh_prom
+  %masked = and i32 %mask, %shifted
+  ret i32 %masked
+}
+
+define i32 @bextr32_c4_commutative(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_c4_commutative:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_c4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_c4_commutative:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_c4_commutative:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %edi
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_c4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_c4_commutative:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %mask = lshr i32 -1, %numhighbits
+  %masked = and i32 %shifted, %mask ; swapped order
+  ret i32 %masked
+}
+
+define i32 @bextr32_c5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_c5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    subl $8, %esp
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shll %cl, %esi
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl %eax, (%esp)
+; X86-NOBMI-NEXT:    calll use32
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:    addl $8, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_c5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    subl $8, %esp
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, (%esp)
+; X86-BMI1NOTBM-NEXT:    calll use32
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    addl $8, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_c5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %edx, %esi
+; X86-BMI1BMI2-NEXT:    movl %ecx, (%esp)
+; X86-BMI1BMI2-NEXT:    calll use32
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    addl $8, %esp
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_c5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %edi, %ebx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %ebx
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %ebx
+; X64-NOBMI-NEXT:    shrl %cl, %ebx
+; X64-NOBMI-NEXT:    movl %esi, %edi
+; X64-NOBMI-NEXT:    callq use32
+; X64-NOBMI-NEXT:    movl %ebx, %eax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_c5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edi, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %ebx
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X64-BMI1NOTBM-NEXT:    callq use32
+; X64-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_c5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %ebx
+; X64-BMI1BMI2-NEXT:    movl %esi, %edi
+; X64-BMI1BMI2-NEXT:    callq use32
+; X64-BMI1BMI2-NEXT:    movl %ebx, %eax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %mask = lshr i32 -1, %numhighbits
+  %masked = and i32 %mask, %shifted
+  call void @use32(i32 %numskipbits)
+  ret i32 %masked
+}
+
+; 64-bit
+
+define i64 @bextr64_c0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_c0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB30_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB30_2:
+; X86-NOBMI-NEXT:    movl $64, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    shrl %cl, %edx
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB30_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:  .LBB30_4:
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_c0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB30_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB30_2:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB30_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB30_4:
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_c0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB30_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB30_2:
+; X86-BMI1BMI2-NEXT:    movl $64, %ecx
+; X86-BMI1BMI2-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movl $-1, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB30_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB30_4:
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_c0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq %rdx, %rax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rdi
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_c0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rdx, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_c0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %mask = lshr i64 -1, %numhighbits
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c1_indexzext(i64 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_c1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB31_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB31_2:
+; X86-NOBMI-NEXT:    movb $64, %cl
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    shrl %cl, %edx
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB31_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:  .LBB31_4:
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_c1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB31_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB31_2:
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB31_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB31_4:
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_c1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB31_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB31_2:
+; X86-BMI1BMI2-NEXT:    movb $64, %cl
+; X86-BMI1BMI2-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl $-1, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB31_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB31_4:
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_c1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    negb %al
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rdi
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_c1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    negb %al
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_c1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %mask = lshr i64 -1, %sh_prom
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_c2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    movl 4(%eax), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB32_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB32_2:
+; X86-NOBMI-NEXT:    movl $64, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    shrl %cl, %edx
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB32_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:  .LBB32_4:
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_c2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %esi
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB32_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB32_2:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB32_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB32_4:
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_c2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl (%eax), %esi
+; X86-BMI1BMI2-NEXT:    movl 4(%eax), %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB32_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB32_2:
+; X86-BMI1BMI2-NEXT:    movl $64, %ecx
+; X86-BMI1BMI2-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movl $-1, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB32_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB32_4:
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_c2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    negl %edx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_c2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    negl %edx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_c2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %mask = lshr i64 -1, %numhighbits
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c3_load_indexzext(i64* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_c3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %esi
+; X86-NOBMI-NEXT:    movl 4(%eax), %eax
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB33_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB33_2:
+; X86-NOBMI-NEXT:    movb $64, %cl
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl $-1, %eax
+; X86-NOBMI-NEXT:    movl $-1, %edx
+; X86-NOBMI-NEXT:    shrl %cl, %edx
+; X86-NOBMI-NEXT:    shrdl %cl, %eax, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB33_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:  .LBB33_4:
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_c3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %esi
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB33_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB33_2:
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB33_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB33_4:
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_c3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl (%eax), %esi
+; X86-BMI1BMI2-NEXT:    movl 4(%eax), %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB33_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB33_2:
+; X86-BMI1BMI2-NEXT:    movb $64, %cl
+; X86-BMI1BMI2-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl $-1, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %eax, %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB33_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB33_4:
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_c3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    negb %dl
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_c3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    negb %dl
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_c3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %mask = lshr i64 -1, %sh_prom
+  %masked = and i64 %mask, %shifted
+  ret i64 %masked
+}
+
+define i64 @bextr64_c4_commutative(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_c4_commutative:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl %esi, %edx
+; X86-NOBMI-NEXT:    shrl %cl, %edx
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB34_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:  .LBB34_2:
+; X86-NOBMI-NEXT:    movl $64, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    movl $-1, %esi
+; X86-NOBMI-NEXT:    movl $-1, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB34_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB34_4:
+; X86-NOBMI-NEXT:    andl %edi, %edx
+; X86-NOBMI-NEXT:    andl %esi, %eax
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_c4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %esi, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB34_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB34_2:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %esi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB34_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB34_4:
+; X86-BMI1NOTBM-NEXT:    andl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    andl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_c4_commutative:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB34_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB34_2:
+; X86-BMI1BMI2-NEXT:    movl $64, %ecx
+; X86-BMI1BMI2-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movl $-1, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %esi, %edi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB34_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB34_4:
+; X86-BMI1BMI2-NEXT:    andl %edi, %edx
+; X86-BMI1BMI2-NEXT:    andl %esi, %eax
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_c4_commutative:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq %rdx, %rax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rdi
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_c4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rdx, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_c4_commutative:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %mask = lshr i64 -1, %numhighbits
+  %masked = and i64 %shifted, %mask ; swapped order
+  ret i64 %masked
+}
+
+define i64 @bextr64_c5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_c5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebp
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    subl $12, %esp
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %esi, %ebx
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %ebx
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %edx
+; X86-NOBMI-NEXT:    testb $32, %al
+; X86-NOBMI-NEXT:    je .LBB35_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %ebx, %edx
+; X86-NOBMI-NEXT:    xorl %ebx, %ebx
+; X86-NOBMI-NEXT:  .LBB35_2:
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %ebp
+; X86-NOBMI-NEXT:    movl $64, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    movl $-1, %esi
+; X86-NOBMI-NEXT:    movl $-1, %edi
+; X86-NOBMI-NEXT:    shrl %cl, %edi
+; X86-NOBMI-NEXT:    shrdl %cl, %esi, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB35_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    xorl %edi, %edi
+; X86-NOBMI-NEXT:  .LBB35_4:
+; X86-NOBMI-NEXT:    andl %ebx, %edi
+; X86-NOBMI-NEXT:    andl %edx, %esi
+; X86-NOBMI-NEXT:    subl $8, %esp
+; X86-NOBMI-NEXT:    pushl %ebp
+; X86-NOBMI-NEXT:    pushl %eax
+; X86-NOBMI-NEXT:    calll use64
+; X86-NOBMI-NEXT:    addl $16, %esp
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:    movl %edi, %edx
+; X86-NOBMI-NEXT:    addl $12, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    popl %ebp
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_c5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebp
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    subl $12, %esp
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %ebx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %esi, %edx
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB35_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB35_2:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %ebp
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %esi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB35_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %edi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB35_4:
+; X86-BMI1NOTBM-NEXT:    andl %ebx, %edi
+; X86-BMI1NOTBM-NEXT:    andl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    subl $8, %esp
+; X86-BMI1NOTBM-NEXT:    pushl %ebp
+; X86-BMI1NOTBM-NEXT:    pushl %eax
+; X86-BMI1NOTBM-NEXT:    calll use64
+; X86-BMI1NOTBM-NEXT:    addl $16, %esp
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    addl $12, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    popl %ebp
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_c5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebp
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    subl $12, %esp
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %edx
+; X86-BMI1BMI2-NEXT:    shrxl %eax, %esi, %ebx
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB35_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edx
+; X86-BMI1BMI2-NEXT:    xorl %ebx, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB35_2:
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ebp
+; X86-BMI1BMI2-NEXT:    movl $64, %ecx
+; X86-BMI1BMI2-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movl $-1, %esi
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %esi, %edi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB35_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edi, %edi
+; X86-BMI1BMI2-NEXT:  .LBB35_4:
+; X86-BMI1BMI2-NEXT:    andl %ebx, %edi
+; X86-BMI1BMI2-NEXT:    andl %edx, %esi
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    pushl %ebp
+; X86-BMI1BMI2-NEXT:    pushl %eax
+; X86-BMI1BMI2-NEXT:    calll use64
+; X86-BMI1BMI2-NEXT:    addl $16, %esp
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    movl %edi, %edx
+; X86-BMI1BMI2-NEXT:    addl $12, %esp
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    popl %ebp
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_c5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movq %rdx, %rax
+; X64-NOBMI-NEXT:    movq %rdi, %rbx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rbx
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rbx
+; X64-NOBMI-NEXT:    shrq %cl, %rbx
+; X64-NOBMI-NEXT:    movq %rsi, %rdi
+; X64-NOBMI-NEXT:    callq use64
+; X64-NOBMI-NEXT:    movq %rbx, %rax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_c5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movq %rdx, %rax
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rbx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rbx
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rbx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rbx
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rdi
+; X64-BMI1NOTBM-NEXT:    callq use64
+; X64-BMI1NOTBM-NEXT:    movq %rbx, %rax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_c5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rbx
+; X64-BMI1BMI2-NEXT:    movq %rsi, %rdi
+; X64-BMI1BMI2-NEXT:    callq use64
+; X64-BMI1BMI2-NEXT:    movq %rbx, %rax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %mask = lshr i64 -1, %numhighbits
+  %masked = and i64 %mask, %shifted
+  call void @use64(i64 %numskipbits)
+  ret i64 %masked
+}
+
+; ---------------------------------------------------------------------------- ;
+; Pattern d. 32-bit.
+; ---------------------------------------------------------------------------- ;
+
+define i32 @bextr32_d0(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_d0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_d0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_d0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_d0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %edi
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_d0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_d0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %highbitscleared = shl i32 %shifted, %numhighbits
+  %masked = lshr i32 %highbitscleared, %numhighbits
+  ret i32 %masked
+}
+
+define i32 @bextr32_d1_indexzext(i32 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_d1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_d1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_d1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_d1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    negb %al
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %edi
+; X64-NOBMI-NEXT:    shrl %cl, %edi
+; X64-NOBMI-NEXT:    movl %edi, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_d1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    negb %al
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_d1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %highbitscleared = shl i32 %shifted, %sh_prom
+  %masked = lshr i32 %highbitscleared, %sh_prom
+  ret i32 %masked
+}
+
+define i32 @bextr32_d2_load(i32* %w, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_d2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_d2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_d2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_d2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    negl %edx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_d2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    negl %edx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_d2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %highbitscleared = shl i32 %shifted, %numhighbits
+  %masked = lshr i32 %highbitscleared, %numhighbits
+  ret i32 %masked
+}
+
+define i32 @bextr32_d3_load_indexzext(i32* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_d3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    shll %cl, %eax
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_d3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_d3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %dl
+; X86-BMI1BMI2-NEXT:    shrxl %edx, (%ecx), %ecx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %ecx, %eax
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_d3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl (%rdi), %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    negb %dl
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %eax
+; X64-NOBMI-NEXT:    shrl %cl, %eax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_d3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    negb %dl
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_d3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxl %esi, (%rdi), %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %eax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i32, i32* %w
+  %skip = zext i8 %numskipbits to i32
+  %shifted = lshr i32 %val, %skip
+  %numhighbits = sub i8 32, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i32
+  %highbitscleared = shl i32 %shifted, %sh_prom
+  %masked = lshr i32 %highbitscleared, %sh_prom
+  ret i32 %masked
+}
+
+define i32 @bextr32_d5_skipextrauses(i32 %val, i32 %numskipbits, i32 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr32_d5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    subl $8, %esp
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    xorl %ecx, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shll %cl, %esi
+; X86-NOBMI-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    movl %eax, (%esp)
+; X86-NOBMI-NEXT:    calll use32
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:    addl $8, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr32_d5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    subl $8, %esp
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, (%esp)
+; X86-BMI1NOTBM-NEXT:    calll use32
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    addl $8, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr32_d5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    bzhil %eax, %edx, %esi
+; X86-BMI1BMI2-NEXT:    movl %ecx, (%esp)
+; X86-BMI1BMI2-NEXT:    calll use32
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    addl $8, %esp
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr32_d5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %edi, %ebx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrl %cl, %ebx
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shll %cl, %ebx
+; X64-NOBMI-NEXT:    shrl %cl, %ebx
+; X64-NOBMI-NEXT:    movl %esi, %edi
+; X64-NOBMI-NEXT:    callq use32
+; X64-NOBMI-NEXT:    movl %ebx, %eax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr32_d5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %edi, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %ebx
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %ebx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X64-BMI1NOTBM-NEXT:    callq use32
+; X64-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr32_d5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxl %esi, %edi, %eax
+; X64-BMI1BMI2-NEXT:    bzhil %edx, %eax, %ebx
+; X64-BMI1BMI2-NEXT:    movl %esi, %edi
+; X64-BMI1BMI2-NEXT:    callq use32
+; X64-BMI1BMI2-NEXT:    movl %ebx, %eax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i32 %val, %numskipbits
+  %numhighbits = sub i32 32, %numlowbits
+  %highbitscleared = shl i32 %shifted, %numhighbits
+  %masked = lshr i32 %highbitscleared, %numhighbits
+  call void @use32(i32 %numskipbits)
+  ret i32 %masked
+}
+
+; 64-bit.
+
+define i64 @bextr64_d0(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_d0:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    shrdl %cl, %edx, %edi
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB41_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB41_2:
+; X86-NOBMI-NEXT:    movl $64, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shldl %cl, %edi, %eax
+; X86-NOBMI-NEXT:    shll %cl, %edi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl %edi, %ebx
+; X86-NOBMI-NEXT:    jne .LBB41_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %ebx
+; X86-NOBMI-NEXT:  .LBB41_4:
+; X86-NOBMI-NEXT:    movl %ebx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl $0, %edx
+; X86-NOBMI-NEXT:    jne .LBB41_6
+; X86-NOBMI-NEXT:  # %bb.5:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:  .LBB41_6:
+; X86-NOBMI-NEXT:    shrdl %cl, %ebx, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    jne .LBB41_8
+; X86-NOBMI-NEXT:  # %bb.7:
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:  .LBB41_8:
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_d0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB41_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB41_2:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    jne .LBB41_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB41_4:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB41_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB41_6:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB41_8
+; X86-BMI1NOTBM-NEXT:  # %bb.7:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB41_8:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_d0:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB41_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:  .LBB41_2:
+; X86-BMI1BMI2-NEXT:    movl $64, %ecx
+; X86-BMI1BMI2-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shlxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB41_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    movl $0, %edi
+; X86-BMI1BMI2-NEXT:  .LBB41_4:
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %esi, %eax
+; X86-BMI1BMI2-NEXT:    jne .LBB41_6
+; X86-BMI1BMI2-NEXT:  # %bb.5:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:  .LBB41_6:
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    jne .LBB41_8
+; X86-BMI1BMI2-NEXT:  # %bb.7:
+; X86-BMI1BMI2-NEXT:    movl %edi, %eax
+; X86-BMI1BMI2-NEXT:  .LBB41_8:
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_d0:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq %rdx, %rax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rdi
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_d0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rdx, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_d0:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %highbitscleared = shl i64 %shifted, %numhighbits
+  %masked = lshr i64 %highbitscleared, %numhighbits
+  ret i64 %masked
+}
+
+define i64 @bextr64_d1_indexzext(i64 %val, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_d1_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    shrdl %cl, %edx, %edi
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB42_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB42_2:
+; X86-NOBMI-NEXT:    movb $64, %cl
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    shldl %cl, %edi, %eax
+; X86-NOBMI-NEXT:    shll %cl, %edi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl %edi, %ebx
+; X86-NOBMI-NEXT:    jne .LBB42_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %ebx
+; X86-NOBMI-NEXT:  .LBB42_4:
+; X86-NOBMI-NEXT:    movl %ebx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl $0, %edx
+; X86-NOBMI-NEXT:    jne .LBB42_6
+; X86-NOBMI-NEXT:  # %bb.5:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:  .LBB42_6:
+; X86-NOBMI-NEXT:    shrdl %cl, %ebx, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    jne .LBB42_8
+; X86-NOBMI-NEXT:  # %bb.7:
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:  .LBB42_8:
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_d1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB42_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB42_2:
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    jne .LBB42_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB42_4:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB42_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB42_6:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB42_8
+; X86-BMI1NOTBM-NEXT:  # %bb.7:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB42_8:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_d1_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %eax
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %esi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB42_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:  .LBB42_2:
+; X86-BMI1BMI2-NEXT:    movb $64, %cl
+; X86-BMI1BMI2-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shlxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB42_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    movl $0, %edi
+; X86-BMI1BMI2-NEXT:  .LBB42_4:
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %esi, %eax
+; X86-BMI1BMI2-NEXT:    jne .LBB42_6
+; X86-BMI1BMI2-NEXT:  # %bb.5:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:  .LBB42_6:
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    jne .LBB42_8
+; X86-BMI1BMI2-NEXT:  # %bb.7:
+; X86-BMI1BMI2-NEXT:    movl %edi, %eax
+; X86-BMI1BMI2-NEXT:  .LBB42_8:
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_d1_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movl %edx, %eax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    negb %al
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rdi
+; X64-NOBMI-NEXT:    shrq %cl, %rdi
+; X64-NOBMI-NEXT:    movq %rdi, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_d1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    negb %al
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_d1_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %highbitscleared = shl i64 %shifted, %sh_prom
+  %masked = lshr i64 %highbitscleared, %sh_prom
+  ret i64 %masked
+}
+
+define i64 @bextr64_d2_load(i64* %w, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_d2_load:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %edi
+; X86-NOBMI-NEXT:    movl 4(%eax), %edx
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    shrdl %cl, %edx, %edi
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB43_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB43_2:
+; X86-NOBMI-NEXT:    movl $64, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shldl %cl, %edi, %eax
+; X86-NOBMI-NEXT:    shll %cl, %edi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl %edi, %ebx
+; X86-NOBMI-NEXT:    jne .LBB43_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %ebx
+; X86-NOBMI-NEXT:  .LBB43_4:
+; X86-NOBMI-NEXT:    movl %ebx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl $0, %edx
+; X86-NOBMI-NEXT:    jne .LBB43_6
+; X86-NOBMI-NEXT:  # %bb.5:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:  .LBB43_6:
+; X86-NOBMI-NEXT:    shrdl %cl, %ebx, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    jne .LBB43_8
+; X86-NOBMI-NEXT:  # %bb.7:
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:  .LBB43_8:
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_d2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %edi
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %edx
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB43_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB43_2:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    jne .LBB43_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB43_4:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB43_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB43_6:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB43_8
+; X86-BMI1NOTBM-NEXT:  # %bb.7:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB43_8:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_d2_load:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    movl (%edx), %eax
+; X86-BMI1BMI2-NEXT:    movl 4(%edx), %edx
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %esi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB43_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:  .LBB43_2:
+; X86-BMI1BMI2-NEXT:    movl $64, %ecx
+; X86-BMI1BMI2-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shlxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB43_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    movl $0, %edi
+; X86-BMI1BMI2-NEXT:  .LBB43_4:
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %esi, %eax
+; X86-BMI1BMI2-NEXT:    jne .LBB43_6
+; X86-BMI1BMI2-NEXT:  # %bb.5:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:  .LBB43_6:
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    jne .LBB43_8
+; X86-BMI1BMI2-NEXT:  # %bb.7:
+; X86-BMI1BMI2-NEXT:    movl %edi, %eax
+; X86-BMI1BMI2-NEXT:  .LBB43_8:
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_d2_load:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    negl %edx
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_d2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    negl %edx
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_d2_load:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %highbitscleared = shl i64 %shifted, %numhighbits
+  %masked = lshr i64 %highbitscleared, %numhighbits
+  ret i64 %masked
+}
+
+define i64 @bextr64_d3_load_indexzext(i64* %w, i8 %numskipbits, i8 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_d3_load_indexzext:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl (%eax), %edi
+; X86-NOBMI-NEXT:    movl 4(%eax), %edx
+; X86-NOBMI-NEXT:    movl %edx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    shrdl %cl, %edx, %edi
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    je .LBB44_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %eax, %edi
+; X86-NOBMI-NEXT:    xorl %eax, %eax
+; X86-NOBMI-NEXT:  .LBB44_2:
+; X86-NOBMI-NEXT:    movb $64, %cl
+; X86-NOBMI-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-NOBMI-NEXT:    shldl %cl, %edi, %eax
+; X86-NOBMI-NEXT:    shll %cl, %edi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl %edi, %ebx
+; X86-NOBMI-NEXT:    jne .LBB44_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %eax, %ebx
+; X86-NOBMI-NEXT:  .LBB44_4:
+; X86-NOBMI-NEXT:    movl %ebx, %eax
+; X86-NOBMI-NEXT:    shrl %cl, %eax
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl $0, %edx
+; X86-NOBMI-NEXT:    jne .LBB44_6
+; X86-NOBMI-NEXT:  # %bb.5:
+; X86-NOBMI-NEXT:    movl %edi, %esi
+; X86-NOBMI-NEXT:    movl %eax, %edx
+; X86-NOBMI-NEXT:  .LBB44_6:
+; X86-NOBMI-NEXT:    shrdl %cl, %ebx, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    jne .LBB44_8
+; X86-NOBMI-NEXT:  # %bb.7:
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:  .LBB44_8:
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_d3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %edi
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %edx
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edx, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB44_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB44_2:
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    jne .LBB44_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ebx
+; X86-BMI1NOTBM-NEXT:  .LBB44_4:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB44_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB44_6:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB44_8
+; X86-BMI1NOTBM-NEXT:  # %bb.7:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB44_8:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_d3_load_indexzext:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    movl (%edx), %eax
+; X86-BMI1BMI2-NEXT:    movl 4(%edx), %edx
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %esi
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %eax
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB44_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %esi, %eax
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:  .LBB44_2:
+; X86-BMI1BMI2-NEXT:    movb $64, %cl
+; X86-BMI1BMI2-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1BMI2-NEXT:    shldl %cl, %eax, %esi
+; X86-BMI1BMI2-NEXT:    shlxl %ecx, %eax, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB44_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:    movl $0, %edi
+; X86-BMI1BMI2-NEXT:  .LBB44_4:
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %esi, %eax
+; X86-BMI1BMI2-NEXT:    jne .LBB44_6
+; X86-BMI1BMI2-NEXT:  # %bb.5:
+; X86-BMI1BMI2-NEXT:    movl %eax, %edx
+; X86-BMI1BMI2-NEXT:  .LBB44_6:
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %esi, %edi
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    jne .LBB44_8
+; X86-BMI1BMI2-NEXT:  # %bb.7:
+; X86-BMI1BMI2-NEXT:    movl %edi, %eax
+; X86-BMI1BMI2-NEXT:  .LBB44_8:
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_d3_load_indexzext:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    movq (%rdi), %rax
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    negb %dl
+; X64-NOBMI-NEXT:    movl %edx, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rax
+; X64-NOBMI-NEXT:    shrq %cl, %rax
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_d3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    negb %dl
+; X64-BMI1NOTBM-NEXT:    movl %edx, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_d3_load_indexzext:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    # kill: def $edx killed $edx def $rdx
+; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, (%rdi), %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rax
+; X64-BMI1BMI2-NEXT:    retq
+  %val = load i64, i64* %w
+  %skip = zext i8 %numskipbits to i64
+  %shifted = lshr i64 %val, %skip
+  %numhighbits = sub i8 64, %numlowbits
+  %sh_prom = zext i8 %numhighbits to i64
+  %highbitscleared = shl i64 %shifted, %sh_prom
+  %masked = lshr i64 %highbitscleared, %sh_prom
+  ret i64 %masked
+}
+
+define i64 @bextr64_d5_skipextrauses(i64 %val, i64 %numskipbits, i64 %numlowbits) nounwind {
+; X86-NOBMI-LABEL: bextr64_d5_skipextrauses:
+; X86-NOBMI:       # %bb.0:
+; X86-NOBMI-NEXT:    pushl %ebp
+; X86-NOBMI-NEXT:    pushl %ebx
+; X86-NOBMI-NEXT:    pushl %edi
+; X86-NOBMI-NEXT:    pushl %esi
+; X86-NOBMI-NEXT:    subl $12, %esp
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %ebx
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-NOBMI-NEXT:    movl %edx, %esi
+; X86-NOBMI-NEXT:    movl %eax, %ecx
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    shrdl %cl, %edx, %ebx
+; X86-NOBMI-NEXT:    xorl %edx, %edx
+; X86-NOBMI-NEXT:    testb $32, %al
+; X86-NOBMI-NEXT:    je .LBB45_2
+; X86-NOBMI-NEXT:  # %bb.1:
+; X86-NOBMI-NEXT:    movl %esi, %ebx
+; X86-NOBMI-NEXT:    xorl %esi, %esi
+; X86-NOBMI-NEXT:  .LBB45_2:
+; X86-NOBMI-NEXT:    movl $64, %ecx
+; X86-NOBMI-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    shldl %cl, %ebx, %esi
+; X86-NOBMI-NEXT:    shll %cl, %ebx
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl %ebx, %ebp
+; X86-NOBMI-NEXT:    jne .LBB45_4
+; X86-NOBMI-NEXT:  # %bb.3:
+; X86-NOBMI-NEXT:    movl %esi, %ebp
+; X86-NOBMI-NEXT:  .LBB45_4:
+; X86-NOBMI-NEXT:    movl %ebp, %esi
+; X86-NOBMI-NEXT:    shrl %cl, %esi
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl $0, %edi
+; X86-NOBMI-NEXT:    jne .LBB45_6
+; X86-NOBMI-NEXT:  # %bb.5:
+; X86-NOBMI-NEXT:    movl %ebx, %edx
+; X86-NOBMI-NEXT:    movl %esi, %edi
+; X86-NOBMI-NEXT:  .LBB45_6:
+; X86-NOBMI-NEXT:    shrdl %cl, %ebp, %edx
+; X86-NOBMI-NEXT:    testb $32, %cl
+; X86-NOBMI-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-NOBMI-NEXT:    jne .LBB45_8
+; X86-NOBMI-NEXT:  # %bb.7:
+; X86-NOBMI-NEXT:    movl %edx, %esi
+; X86-NOBMI-NEXT:  .LBB45_8:
+; X86-NOBMI-NEXT:    subl $8, %esp
+; X86-NOBMI-NEXT:    pushl %ecx
+; X86-NOBMI-NEXT:    pushl %eax
+; X86-NOBMI-NEXT:    calll use64
+; X86-NOBMI-NEXT:    addl $16, %esp
+; X86-NOBMI-NEXT:    movl %esi, %eax
+; X86-NOBMI-NEXT:    movl %edi, %edx
+; X86-NOBMI-NEXT:    addl $12, %esp
+; X86-NOBMI-NEXT:    popl %esi
+; X86-NOBMI-NEXT:    popl %edi
+; X86-NOBMI-NEXT:    popl %ebx
+; X86-NOBMI-NEXT:    popl %ebp
+; X86-NOBMI-NEXT:    retl
+;
+; X86-BMI1NOTBM-LABEL: bextr64_d5_skipextrauses:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebp
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    subl $12, %esp
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %ebx
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edx, %ebx
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    testb $32, %al
+; X86-BMI1NOTBM-NEXT:    je .LBB45_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebx
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB45_2:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %ebx, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %ebp
+; X86-BMI1NOTBM-NEXT:    jne .LBB45_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebp
+; X86-BMI1NOTBM-NEXT:  .LBB45_4:
+; X86-BMI1NOTBM-NEXT:    movl %ebp, %esi
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %esi
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edi
+; X86-BMI1NOTBM-NEXT:    jne .LBB45_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %edx
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB45_6:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %ebp, %edx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    jne .LBB45_8
+; X86-BMI1NOTBM-NEXT:  # %bb.7:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB45_8:
+; X86-BMI1NOTBM-NEXT:    subl $8, %esp
+; X86-BMI1NOTBM-NEXT:    pushl %ecx
+; X86-BMI1NOTBM-NEXT:    pushl %eax
+; X86-BMI1NOTBM-NEXT:    calll use64
+; X86-BMI1NOTBM-NEXT:    addl $16, %esp
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    movl %edi, %edx
+; X86-BMI1NOTBM-NEXT:    addl $12, %esp
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    popl %ebp
+; X86-BMI1NOTBM-NEXT:    retl
+;
+; X86-BMI1BMI2-LABEL: bextr64_d5_skipextrauses:
+; X86-BMI1BMI2:       # %bb.0:
+; X86-BMI1BMI2-NEXT:    pushl %ebx
+; X86-BMI1BMI2-NEXT:    pushl %edi
+; X86-BMI1BMI2-NEXT:    pushl %esi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edi
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1BMI2-NEXT:    movl %eax, %ecx
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %edi
+; X86-BMI1BMI2-NEXT:    shrxl %eax, %edx, %edx
+; X86-BMI1BMI2-NEXT:    xorl %esi, %esi
+; X86-BMI1BMI2-NEXT:    testb $32, %al
+; X86-BMI1BMI2-NEXT:    je .LBB45_2
+; X86-BMI1BMI2-NEXT:  # %bb.1:
+; X86-BMI1BMI2-NEXT:    movl %edx, %edi
+; X86-BMI1BMI2-NEXT:    xorl %edx, %edx
+; X86-BMI1BMI2-NEXT:  .LBB45_2:
+; X86-BMI1BMI2-NEXT:    movl $64, %ecx
+; X86-BMI1BMI2-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    shldl %cl, %edi, %edx
+; X86-BMI1BMI2-NEXT:    shlxl %ecx, %edi, %ebx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    je .LBB45_4
+; X86-BMI1BMI2-NEXT:  # %bb.3:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edx
+; X86-BMI1BMI2-NEXT:    movl $0, %ebx
+; X86-BMI1BMI2-NEXT:  .LBB45_4:
+; X86-BMI1BMI2-NEXT:    shrxl %ecx, %edx, %edi
+; X86-BMI1BMI2-NEXT:    jne .LBB45_6
+; X86-BMI1BMI2-NEXT:  # %bb.5:
+; X86-BMI1BMI2-NEXT:    movl %edi, %esi
+; X86-BMI1BMI2-NEXT:  .LBB45_6:
+; X86-BMI1BMI2-NEXT:    shrdl %cl, %edx, %ebx
+; X86-BMI1BMI2-NEXT:    testb $32, %cl
+; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1BMI2-NEXT:    jne .LBB45_8
+; X86-BMI1BMI2-NEXT:  # %bb.7:
+; X86-BMI1BMI2-NEXT:    movl %ebx, %edi
+; X86-BMI1BMI2-NEXT:  .LBB45_8:
+; X86-BMI1BMI2-NEXT:    subl $8, %esp
+; X86-BMI1BMI2-NEXT:    pushl %ecx
+; X86-BMI1BMI2-NEXT:    pushl %eax
+; X86-BMI1BMI2-NEXT:    calll use64
+; X86-BMI1BMI2-NEXT:    addl $16, %esp
+; X86-BMI1BMI2-NEXT:    movl %edi, %eax
+; X86-BMI1BMI2-NEXT:    movl %esi, %edx
+; X86-BMI1BMI2-NEXT:    popl %esi
+; X86-BMI1BMI2-NEXT:    popl %edi
+; X86-BMI1BMI2-NEXT:    popl %ebx
+; X86-BMI1BMI2-NEXT:    retl
+;
+; X64-NOBMI-LABEL: bextr64_d5_skipextrauses:
+; X64-NOBMI:       # %bb.0:
+; X64-NOBMI-NEXT:    pushq %rbx
+; X64-NOBMI-NEXT:    movq %rdx, %rax
+; X64-NOBMI-NEXT:    movq %rdi, %rbx
+; X64-NOBMI-NEXT:    movl %esi, %ecx
+; X64-NOBMI-NEXT:    shrq %cl, %rbx
+; X64-NOBMI-NEXT:    negl %eax
+; X64-NOBMI-NEXT:    movl %eax, %ecx
+; X64-NOBMI-NEXT:    shlq %cl, %rbx
+; X64-NOBMI-NEXT:    shrq %cl, %rbx
+; X64-NOBMI-NEXT:    movq %rsi, %rdi
+; X64-NOBMI-NEXT:    callq use64
+; X64-NOBMI-NEXT:    movq %rbx, %rax
+; X64-NOBMI-NEXT:    popq %rbx
+; X64-NOBMI-NEXT:    retq
+;
+; X64-BMI1NOTBM-LABEL: bextr64_d5_skipextrauses:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    pushq %rbx
+; X64-BMI1NOTBM-NEXT:    movq %rdx, %rax
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rbx
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rbx
+; X64-BMI1NOTBM-NEXT:    negl %eax
+; X64-BMI1NOTBM-NEXT:    movl %eax, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rbx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rbx
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rdi
+; X64-BMI1NOTBM-NEXT:    callq use64
+; X64-BMI1NOTBM-NEXT:    movq %rbx, %rax
+; X64-BMI1NOTBM-NEXT:    popq %rbx
+; X64-BMI1NOTBM-NEXT:    retq
+;
+; X64-BMI1BMI2-LABEL: bextr64_d5_skipextrauses:
+; X64-BMI1BMI2:       # %bb.0:
+; X64-BMI1BMI2-NEXT:    pushq %rbx
+; X64-BMI1BMI2-NEXT:    shrxq %rsi, %rdi, %rax
+; X64-BMI1BMI2-NEXT:    bzhiq %rdx, %rax, %rbx
+; X64-BMI1BMI2-NEXT:    movq %rsi, %rdi
+; X64-BMI1BMI2-NEXT:    callq use64
+; X64-BMI1BMI2-NEXT:    movq %rbx, %rax
+; X64-BMI1BMI2-NEXT:    popq %rbx
+; X64-BMI1BMI2-NEXT:    retq
+  %shifted = lshr i64 %val, %numskipbits
+  %numhighbits = sub i64 64, %numlowbits
+  %highbitscleared = shl i64 %shifted, %numhighbits
+  %masked = lshr i64 %highbitscleared, %numhighbits
+  call void @use64(i64 %numskipbits)
+  ret i64 %masked
+}
Index: test/CodeGen/X86/extract-lowbits.ll
===================================================================
--- test/CodeGen/X86/extract-lowbits.ll
+++ test/CodeGen/X86/extract-lowbits.ll
@@ -1,11 +1,11 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,NOBMI,X86-NOBMI
-; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1
+; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1NOTBM,X86-BMI1NOTBM
 ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1TBM,X86-BMI1TBM
 ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1BMI2,X86-BMI1BMI2,BMI1TBM,X86-BMI1TBM,BMI1TBMBMI2,X86-BMI1TBMBMI2
 ; RUN: llc -mtriple=i686-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X86,BMI1,X86-BMI1,BMI1BMI2,X86-BMI1BMI2,BMI1NOTBMBMI2,X86-BMI1NOTBMBMI2
 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=-bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,NOBMI,X64-NOBMI
-; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1
+; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1NOTBM,X64-BMI1NOTBM
 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,-bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1TBM,X64-BMI1TBM
 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,+tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1BMI2,X64-BMI1BMI2,BMI1TBM,X64-BMI1TBM,BMI1TBMBMI2,X64-BMI1TBMBMI2
 ; RUN: llc -mtriple=x86_64-unknown-linux-gnu -mattr=+bmi,-tbm,+bmi2 < %s | FileCheck %s --check-prefixes=CHECK,X64,BMI1,X64-BMI1,BMI1BMI2,X64-BMI1BMI2,BMI1NOTBMBMI2,X64-BMI1NOTBMBMI2
@@ -37,6 +37,15 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_a0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_a0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -52,6 +61,15 @@
 ; X64-NOBMI-NEXT:    andl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_a0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_a0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -72,6 +90,15 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_a1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_a1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -87,6 +114,15 @@
 ; X64-NOBMI-NEXT:    andl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_a1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_a1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -109,6 +145,16 @@
 ; X86-NOBMI-NEXT:    andl (%edx), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_a2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl (%edx), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_a2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -125,6 +171,15 @@
 ; X64-NOBMI-NEXT:    andl (%rdi), %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_a2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_a2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -147,6 +202,16 @@
 ; X86-NOBMI-NEXT:    andl (%edx), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_a3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl (%edx), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_a3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -163,6 +228,15 @@
 ; X64-NOBMI-NEXT:    andl (%rdi), %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_a3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_a3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -185,6 +259,15 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_a4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    decl %eax
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_a4_commutative:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -200,6 +283,15 @@
 ; X64-NOBMI-NEXT:    andl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_a4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    decl %eax
+; X64-BMI1NOTBM-NEXT:    andl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_a4_commutative:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -232,6 +324,25 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_a0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB5_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB5_2:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_a0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
@@ -260,6 +371,15 @@
 ; X64-NOBMI-NEXT:    andq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_a0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_a0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, %rdi, %rax
@@ -290,6 +410,25 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_a1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB6_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB6_2:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_a1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
@@ -318,6 +457,15 @@
 ; X64-NOBMI-NEXT:    andq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_a1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_a1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -353,6 +501,28 @@
 ; X86-NOBMI-NEXT:    popl %esi
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_a2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB7_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB7_2:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl 4(%esi), %edx
+; X86-BMI1NOTBM-NEXT:    andl (%esi), %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_a2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -384,6 +554,15 @@
 ; X64-NOBMI-NEXT:    andq (%rdi), %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_a2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_a2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, (%rdi), %rax
@@ -418,6 +597,28 @@
 ; X86-NOBMI-NEXT:    popl %esi
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_a3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB8_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB8_2:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl 4(%esi), %edx
+; X86-BMI1NOTBM-NEXT:    andl (%esi), %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_a3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -449,6 +650,15 @@
 ; X64-NOBMI-NEXT:    andq (%rdi), %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_a3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_a3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -482,6 +692,25 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_a4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $1, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB9_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %eax, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB9_2:
+; X86-BMI1NOTBM-NEXT:    addl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    adcl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_a4_commutative:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %cl
@@ -510,6 +739,15 @@
 ; X64-NOBMI-NEXT:    andq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_a4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    decq %rax
+; X64-BMI1NOTBM-NEXT:    andq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_a4_commutative:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, %rdi, %rax
@@ -534,6 +772,14 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_b0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %eax, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_b0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -549,6 +795,14 @@
 ; X64-NOBMI-NEXT:    andl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_b0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl %edi, %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_b0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -569,6 +823,14 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_b1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %eax, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_b1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -584,6 +846,14 @@
 ; X64-NOBMI-NEXT:    andl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_b1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl %edi, %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_b1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -606,6 +876,15 @@
 ; X86-NOBMI-NEXT:    andl (%edx), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_b2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %edx
+; X86-BMI1NOTBM-NEXT:    andnl (%eax), %edx, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_b2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -622,6 +901,14 @@
 ; X64-NOBMI-NEXT:    andl (%rdi), %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_b2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl (%rdi), %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_b2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -644,6 +931,15 @@
 ; X86-NOBMI-NEXT:    andl (%edx), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_b3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %edx
+; X86-BMI1NOTBM-NEXT:    andnl (%eax), %edx, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_b3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -660,6 +956,14 @@
 ; X64-NOBMI-NEXT:    andl (%rdi), %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_b3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl (%rdi), %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_b3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -682,6 +986,14 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_b4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %eax, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_b4_commutative:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -697,6 +1009,14 @@
 ; X64-NOBMI-NEXT:    andl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_b4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    andnl %edi, %eax, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_b4_commutative:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -729,6 +1049,25 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_b0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB15_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB15_2:
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %eax, %edx
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_b0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -756,6 +1095,14 @@
 ; X64-NOBMI-NEXT:    andq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_b0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq %rdi, %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_b0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, %rdi, %rax
@@ -786,6 +1133,25 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_b1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB16_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB16_2:
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %eax, %edx
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_b1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -813,6 +1179,14 @@
 ; X64-NOBMI-NEXT:    andq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_b1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq %rdi, %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_b1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -848,6 +1222,26 @@
 ; X86-NOBMI-NEXT:    popl %esi
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_b2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edx, %edx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB17_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB17_2:
+; X86-BMI1NOTBM-NEXT:    andnl 4(%eax), %edx, %edx
+; X86-BMI1NOTBM-NEXT:    andnl (%eax), %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_b2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -876,6 +1270,14 @@
 ; X64-NOBMI-NEXT:    andq (%rdi), %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_b2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq (%rdi), %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_b2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, (%rdi), %rax
@@ -910,6 +1312,26 @@
 ; X86-NOBMI-NEXT:    popl %esi
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_b3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edx, %edx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB18_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edx
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB18_2:
+; X86-BMI1NOTBM-NEXT:    andnl 4(%eax), %edx, %edx
+; X86-BMI1NOTBM-NEXT:    andnl (%eax), %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_b3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -938,6 +1360,14 @@
 ; X64-NOBMI-NEXT:    andq (%rdi), %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_b3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq (%rdi), %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_b3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -971,6 +1401,25 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_b4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB19_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %esi, %esi
+; X86-BMI1NOTBM-NEXT:  .LBB19_2:
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %eax, %edx
+; X86-BMI1NOTBM-NEXT:    andnl {{[0-9]+}}(%esp), %esi, %eax
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_b4_commutative:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -998,6 +1447,14 @@
 ; X64-NOBMI-NEXT:    andq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_b4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq $-1, %rax
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    andnq %rdi, %rax, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_b4_commutative:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, %rdi, %rax
@@ -1023,6 +1480,16 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_c0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_c0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -1039,6 +1506,16 @@
 ; X64-NOBMI-NEXT:    movl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_c0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_c0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -1060,6 +1537,16 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_c1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_c1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -1076,6 +1563,16 @@
 ; X64-NOBMI-NEXT:    movl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_c1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_c1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -1099,6 +1596,17 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_c2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_c2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -1116,6 +1624,16 @@
 ; X64-NOBMI-NEXT:    shrl %cl, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_c2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_c2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -1139,6 +1657,17 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_c3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_c3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -1156,6 +1685,16 @@
 ; X64-NOBMI-NEXT:    shrl %cl, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_c3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_c3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -1179,6 +1718,16 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_c4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_c4_commutative:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -1195,6 +1744,16 @@
 ; X64-NOBMI-NEXT:    movl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_c4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_c4_commutative:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -1226,6 +1785,24 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %edx
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_c0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB25_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB25_2:
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_c0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl $64, %ecx
@@ -1253,6 +1830,16 @@
 ; X64-NOBMI-NEXT:    movq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_c0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rcx
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $rcx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_c0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, %rdi, %rax
@@ -1282,6 +1869,24 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %edx
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_c1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB26_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB26_2:
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_c1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb $64, %cl
@@ -1309,6 +1914,16 @@
 ; X64-NOBMI-NEXT:    movq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_c1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_c1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -1343,6 +1958,27 @@
 ; X86-NOBMI-NEXT:    popl %esi
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_c2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB27_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB27_2:
+; X86-BMI1NOTBM-NEXT:    andl (%esi), %eax
+; X86-BMI1NOTBM-NEXT:    andl 4(%esi), %edx
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_c2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -1373,6 +2009,16 @@
 ; X64-NOBMI-NEXT:    shrq %cl, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_c2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rcx
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $rcx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_c2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, (%rdi), %rax
@@ -1406,6 +2052,27 @@
 ; X86-NOBMI-NEXT:    popl %esi
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_c3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %esi
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB28_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB28_2:
+; X86-BMI1NOTBM-NEXT:    andl (%esi), %eax
+; X86-BMI1NOTBM-NEXT:    andl 4(%esi), %edx
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_c3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %esi
@@ -1436,6 +2103,16 @@
 ; X64-NOBMI-NEXT:    shrq %cl, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_c3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_c3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -1468,6 +2145,24 @@
 ; X86-NOBMI-NEXT:    andl {{[0-9]+}}(%esp), %edx
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_c4_commutative:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl $-1, %eax
+; X86-BMI1NOTBM-NEXT:    movl $-1, %edx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %edx
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %eax, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    je .LBB29_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %edx, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %edx, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB29_2:
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    andl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_c4_commutative:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl $64, %ecx
@@ -1495,6 +2190,16 @@
 ; X64-NOBMI-NEXT:    movq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_c4_commutative:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rcx
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $rcx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_c4_commutative:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, %rdi, %rax
@@ -1520,6 +2225,16 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_d0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_d0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -1536,6 +2251,16 @@
 ; X64-NOBMI-NEXT:    movl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_d0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_d0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -1557,6 +2282,16 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_d1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_d1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movb {{[0-9]+}}(%esp), %al
@@ -1573,6 +2308,16 @@
 ; X64-NOBMI-NEXT:    movl %edi, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_d1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shll %cl, %edi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %edi
+; X64-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_d1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, %edi, %eax
@@ -1596,6 +2341,17 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_d2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_d2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -1613,6 +2369,16 @@
 ; X64-NOBMI-NEXT:    shrl %cl, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_d2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_d2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -1636,6 +2402,17 @@
 ; X86-NOBMI-NEXT:    shrl %cl, %eax
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi32_d3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ecx, %ecx
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X86-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi32_d3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    movl {{[0-9]+}}(%esp), %eax
@@ -1653,6 +2430,16 @@
 ; X64-NOBMI-NEXT:    shrl %cl, %eax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi32_d3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    movl (%rdi), %eax
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shll %cl, %eax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi32_d3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhil %esi, (%rdi), %eax
@@ -1707,6 +2494,45 @@
 ; X86-NOBMI-NEXT:    popl %ebx
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_d0:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edx, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:    jne .LBB34_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB34_2:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB34_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB34_4:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB34_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB34_6:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_d0:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %edi
@@ -1749,6 +2575,16 @@
 ; X64-NOBMI-NEXT:    movq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_d0:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rcx
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $rcx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_d0:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, %rdi, %rax
@@ -1799,6 +2635,45 @@
 ; X86-NOBMI-NEXT:    popl %ebx
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_d1_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %edx
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edx, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:    jne .LBB35_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB35_2:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB35_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB35_4:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB35_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB35_6:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_d1_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %edi
@@ -1841,6 +2716,16 @@
 ; X64-NOBMI-NEXT:    movq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_d1_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rdi
+; X64-BMI1NOTBM-NEXT:    movq %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_d1_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -1894,6 +2779,46 @@
 ; X86-NOBMI-NEXT:    popl %ebx
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_d2_load:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %edx
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %eax
+; X86-BMI1NOTBM-NEXT:    movl $64, %ecx
+; X86-BMI1NOTBM-NEXT:    subl {{[0-9]+}}(%esp), %ecx
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edx, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:    jne .LBB36_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB36_2:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB36_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB36_4:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB36_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB36_6:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_d2_load:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %edi
@@ -1937,6 +2862,16 @@
 ; X64-NOBMI-NEXT:    shrq %cl, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_d2_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movq %rsi, %rcx
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    negl %ecx
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $rcx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_d2_load:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    bzhiq %rsi, (%rdi), %rax
@@ -1989,6 +2924,46 @@
 ; X86-NOBMI-NEXT:    popl %ebx
 ; X86-NOBMI-NEXT:    retl
 ;
+; X86-BMI1NOTBM-LABEL: bzhi64_d3_load_indexzext:
+; X86-BMI1NOTBM:       # %bb.0:
+; X86-BMI1NOTBM-NEXT:    pushl %ebx
+; X86-BMI1NOTBM-NEXT:    pushl %edi
+; X86-BMI1NOTBM-NEXT:    pushl %esi
+; X86-BMI1NOTBM-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X86-BMI1NOTBM-NEXT:    movl (%eax), %edx
+; X86-BMI1NOTBM-NEXT:    movl 4(%eax), %eax
+; X86-BMI1NOTBM-NEXT:    movb $64, %cl
+; X86-BMI1NOTBM-NEXT:    subb {{[0-9]+}}(%esp), %cl
+; X86-BMI1NOTBM-NEXT:    movl %edx, %esi
+; X86-BMI1NOTBM-NEXT:    shll %cl, %esi
+; X86-BMI1NOTBM-NEXT:    shldl %cl, %edx, %eax
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl %esi, %edi
+; X86-BMI1NOTBM-NEXT:    jne .LBB37_2
+; X86-BMI1NOTBM-NEXT:  # %bb.1:
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edi
+; X86-BMI1NOTBM-NEXT:  .LBB37_2:
+; X86-BMI1NOTBM-NEXT:    movl %edi, %eax
+; X86-BMI1NOTBM-NEXT:    shrl %cl, %eax
+; X86-BMI1NOTBM-NEXT:    xorl %ebx, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    movl $0, %edx
+; X86-BMI1NOTBM-NEXT:    jne .LBB37_4
+; X86-BMI1NOTBM-NEXT:  # %bb.3:
+; X86-BMI1NOTBM-NEXT:    movl %esi, %ebx
+; X86-BMI1NOTBM-NEXT:    movl %eax, %edx
+; X86-BMI1NOTBM-NEXT:  .LBB37_4:
+; X86-BMI1NOTBM-NEXT:    shrdl %cl, %edi, %ebx
+; X86-BMI1NOTBM-NEXT:    testb $32, %cl
+; X86-BMI1NOTBM-NEXT:    jne .LBB37_6
+; X86-BMI1NOTBM-NEXT:  # %bb.5:
+; X86-BMI1NOTBM-NEXT:    movl %ebx, %eax
+; X86-BMI1NOTBM-NEXT:  .LBB37_6:
+; X86-BMI1NOTBM-NEXT:    popl %esi
+; X86-BMI1NOTBM-NEXT:    popl %edi
+; X86-BMI1NOTBM-NEXT:    popl %ebx
+; X86-BMI1NOTBM-NEXT:    retl
+;
 ; X86-BMI1BMI2-LABEL: bzhi64_d3_load_indexzext:
 ; X86-BMI1BMI2:       # %bb.0:
 ; X86-BMI1BMI2-NEXT:    pushl %edi
@@ -2032,6 +3007,16 @@
 ; X64-NOBMI-NEXT:    shrq %cl, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_d3_load_indexzext:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl %esi, %ecx
+; X64-BMI1NOTBM-NEXT:    movq (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    negb %cl
+; X64-BMI1NOTBM-NEXT:    shlq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    # kill: def $cl killed $cl killed $ecx
+; X64-BMI1NOTBM-NEXT:    shrq %cl, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1BMI2-LABEL: bzhi64_d3_load_indexzext:
 ; X64-BMI1BMI2:       # %bb.0:
 ; X64-BMI1BMI2-NEXT:    # kill: def $esi killed $esi def $rsi
@@ -2169,6 +3154,12 @@
 ; X64-NOBMI-NEXT:    andq %rdi, %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_constant_mask64:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $15872, %eax # imm = 0x3E00
+; X64-BMI1NOTBM-NEXT:    bextrq %rax, %rdi, %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1TBM-LABEL: bzhi64_constant_mask64:
 ; X64-BMI1TBM:       # %bb.0:
 ; X64-BMI1TBM-NEXT:    bextrq $15872, %rdi, %rax # imm = 0x3E00
@@ -2198,6 +3189,12 @@
 ; X64-NOBMI-NEXT:    andq (%rdi), %rax
 ; X64-NOBMI-NEXT:    retq
 ;
+; X64-BMI1NOTBM-LABEL: bzhi64_constant_mask64_load:
+; X64-BMI1NOTBM:       # %bb.0:
+; X64-BMI1NOTBM-NEXT:    movl $15872, %eax # imm = 0x3E00
+; X64-BMI1NOTBM-NEXT:    bextrq %rax, (%rdi), %rax
+; X64-BMI1NOTBM-NEXT:    retq
+;
 ; X64-BMI1TBM-LABEL: bzhi64_constant_mask64_load:
 ; X64-BMI1TBM:       # %bb.0:
 ; X64-BMI1TBM-NEXT:    bextrq $15872, (%rdi), %rax # imm = 0x3E00