diff --git a/llvm/test/CodeGen/X86/icmp-pow2-diff.ll b/llvm/test/CodeGen/X86/icmp-pow2-diff.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/X86/icmp-pow2-diff.ll
@@ -0,0 +1,437 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-- -mattr=+avx512f,+avx512vl | FileCheck %s --check-prefixes=CHECK,AVX512
+; RUN: llc < %s -mtriple=x86_64-- -mattr=+avx2 | FileCheck %s --check-prefixes=CHECK,AVX2
+; RUN: llc < %s -mtriple=x86_64-- -mattr=+sse4.1 | FileCheck %s --check-prefixes=CHECK,SSE,SSE41
+; RUN: llc < %s -mtriple=x86_64-- -mattr=+sse2 | FileCheck %s --check-prefixes=CHECK,SSE,SSE2
+
+; Todo: Support logic for non-splat vectors
+define <4 x i1> @andnot_eq_v4i32_todo_no_splat(<4 x i32> %x) nounwind {
+; AVX512-LABEL: andnot_eq_v4i32_todo_no_splat:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm0, %k0
+; AVX512-NEXT:    vpcmpeqd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %k1
+; AVX512-NEXT:    korw %k1, %k0, %k1
+; AVX512-NEXT:    vmovdqa32 %xmm1, %xmm0 {%k1} {z}
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_eq_v4i32_todo_no_splat:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm0, %xmm1
+; AVX2-NEXT:    vpcmpeqd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    vpor %xmm0, %xmm1, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE-LABEL: andnot_eq_v4i32_todo_no_splat:
+; SSE:       # %bb.0:
+; SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE-NEXT:    pcmpeqd %xmm0, %xmm1
+; SSE-NEXT:    pcmpeqd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; SSE-NEXT:    por %xmm1, %xmm0
+; SSE-NEXT:    retq
+  %cmp1 = icmp eq <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
+  %cmp2 = icmp eq <4 x i32> %x, <i32 -9, i32 -17, i32 -5, i32 -129>
+  %r = or <4 x i1> %cmp1, %cmp2
+  ret <4 x i1> %r
+}
+
+define <4 x i1> @andnot_eq_v4i32(<4 x i32> %x) nounwind {
+; AVX512-LABEL: andnot_eq_v4i32:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm0, %k0
+; AVX512-NEXT:    vpcmpeqd {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to4}, %xmm0, %k1
+; AVX512-NEXT:    korw %k1, %k0, %k1
+; AVX512-NEXT:    vmovdqa32 %xmm1, %xmm0 {%k1} {z}
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_eq_v4i32:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm0, %xmm1
+; AVX2-NEXT:    vpbroadcastd {{.*#+}} xmm2 = [4294967287,4294967287,4294967287,4294967287]
+; AVX2-NEXT:    vpcmpeqd %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpor %xmm0, %xmm1, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE-LABEL: andnot_eq_v4i32:
+; SSE:       # %bb.0:
+; SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE-NEXT:    pcmpeqd %xmm0, %xmm1
+; SSE-NEXT:    pcmpeqd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; SSE-NEXT:    por %xmm1, %xmm0
+; SSE-NEXT:    retq
+  %cmp1 = icmp eq <4 x i32> %x, <i32 -1, i32 -1, i32 -1, i32 -1>
+  %cmp2 = icmp eq <4 x i32> %x, <i32 -9, i32 -9, i32 -9, i32 -9>
+  %r = or <4 x i1> %cmp1, %cmp2
+  ret <4 x i1> %r
+}
+
+; Intentional negative test.
+define <2 x i1> @andnot_eq_v2i64_fail_max_not_n1(<2 x i64> %x) nounwind {
+; AVX512-LABEL: andnot_eq_v2i64_fail_max_not_n1:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512-NEXT:    vpcmpeqq %xmm1, %xmm0, %k0
+; AVX512-NEXT:    vpcmpeqq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to2}, %xmm0, %k1
+; AVX512-NEXT:    korw %k1, %k0, %k1
+; AVX512-NEXT:    vmovdqa64 %xmm1, %xmm0 {%k1} {z}
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_eq_v2i64_fail_max_not_n1:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpcmpeqq %xmm1, %xmm0, %xmm1
+; AVX2-NEXT:    vpcmpeqq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    vpor %xmm0, %xmm1, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE41-LABEL: andnot_eq_v2i64_fail_max_not_n1:
+; SSE41:       # %bb.0:
+; SSE41-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE41-NEXT:    pcmpeqq %xmm0, %xmm1
+; SSE41-NEXT:    pcmpeqq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; SSE41-NEXT:    por %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; SSE2-LABEL: andnot_eq_v2i64_fail_max_not_n1:
+; SSE2:       # %bb.0:
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    pcmpeqd %xmm0, %xmm1
+; SSE2-NEXT:    pshufd {{.*#+}} xmm2 = xmm1[1,0,3,2]
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    pcmpeqd {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm0[1,0,3,2]
+; SSE2-NEXT:    pand %xmm1, %xmm0
+; SSE2-NEXT:    por %xmm2, %xmm0
+; SSE2-NEXT:    retq
+  %cmp1 = icmp eq <2 x i64> %x, <i64 -1, i64 -1>
+  %cmp2 = icmp eq <2 x i64> %x, <i64 7, i64 7>
+  %r = or <2 x i1> %cmp1, %cmp2
+  ret <2 x i1> %r
+}
+
+define <2 x i1> @andnot_eq_v2i64(<2 x i64> %x) nounwind {
+; AVX512-LABEL: andnot_eq_v2i64:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to2}, %xmm0, %k0
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512-NEXT:    vpcmpeqq %xmm1, %xmm0, %k1
+; AVX512-NEXT:    korw %k1, %k0, %k1
+; AVX512-NEXT:    vmovdqa64 %xmm1, %xmm0 {%k1} {z}
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_eq_v2i64:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1
+; AVX2-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX2-NEXT:    vpcmpeqq %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpor %xmm0, %xmm1, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE41-LABEL: andnot_eq_v2i64:
+; SSE41:       # %bb.0:
+; SSE41-NEXT:    movdqa {{.*#+}} xmm1 = [18446744073709551611,18446744073709551611]
+; SSE41-NEXT:    pcmpeqq %xmm0, %xmm1
+; SSE41-NEXT:    pcmpeqd %xmm2, %xmm2
+; SSE41-NEXT:    pcmpeqq %xmm2, %xmm0
+; SSE41-NEXT:    por %xmm1, %xmm0
+; SSE41-NEXT:    retq
+;
+; SSE2-LABEL: andnot_eq_v2i64:
+; SSE2:       # %bb.0:
+; SSE2-NEXT:    movdqa {{.*#+}} xmm1 = [18446744073709551611,18446744073709551611]
+; SSE2-NEXT:    pcmpeqd %xmm0, %xmm1
+; SSE2-NEXT:    pshufd {{.*#+}} xmm2 = xmm1[1,0,3,2]
+; SSE2-NEXT:    pand %xmm1, %xmm2
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE2-NEXT:    pcmpeqd %xmm1, %xmm0
+; SSE2-NEXT:    pshufd {{.*#+}} xmm1 = xmm0[1,0,3,2]
+; SSE2-NEXT:    pand %xmm1, %xmm0
+; SSE2-NEXT:    por %xmm2, %xmm0
+; SSE2-NEXT:    retq
+  %cmp1 = icmp eq <2 x i64> %x, <i64 -5, i64 -5>
+  %cmp2 = icmp eq <2 x i64> %x, <i64 -1, i64 -1>
+  %r = or <2 x i1> %cmp1, %cmp2
+  ret <2 x i1> %r
+}
+
+; Todo: Support logic for non-splat vectors
+define <8 x i1> @andnot_ne_v8i16_todo_no_splat(<8 x i16> %x) nounwind {
+; AVX512-LABEL: andnot_ne_v8i16_todo_no_splat:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512-NEXT:    vpcmpeqw %xmm1, %xmm0, %xmm2
+; AVX512-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX512-NEXT:    vpternlogq $18, %xmm1, %xmm2, %xmm0
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_ne_v8i16_todo_no_splat:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpcmpeqw %xmm1, %xmm0, %xmm2
+; AVX2-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vpandn %xmm0, %xmm2, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE-LABEL: andnot_ne_v8i16_todo_no_splat:
+; SSE:       # %bb.0:
+; SSE-NEXT:    pcmpeqd %xmm2, %xmm2
+; SSE-NEXT:    movdqa %xmm0, %xmm1
+; SSE-NEXT:    pcmpeqw %xmm2, %xmm1
+; SSE-NEXT:    pcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; SSE-NEXT:    pxor %xmm2, %xmm0
+; SSE-NEXT:    pandn %xmm0, %xmm1
+; SSE-NEXT:    movdqa %xmm1, %xmm0
+; SSE-NEXT:    retq
+  %cmp1 = icmp ne <8 x i16> %x, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
+  %cmp2 = icmp ne <8 x i16> %x, <i16 -16385, i16 -257, i16 -33, i16 -8193, i16 -16385, i16 -257, i16 -33, i16 -8193>
+  %r = and <8 x i1> %cmp1, %cmp2
+  ret <8 x i1> %r
+}
+
+define <8 x i1> @andnot_ne_v8i16(<8 x i16> %x) nounwind {
+; AVX512-LABEL: andnot_ne_v8i16:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1
+; AVX512-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX512-NEXT:    vpcmpeqw %xmm2, %xmm0, %xmm0
+; AVX512-NEXT:    vpternlogq $18, %xmm2, %xmm1, %xmm0
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_ne_v8i16:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1
+; AVX2-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX2-NEXT:    vpcmpeqw %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpxor %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpandn %xmm0, %xmm1, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE-LABEL: andnot_ne_v8i16:
+; SSE:       # %bb.0:
+; SSE-NEXT:    movdqa {{.*#+}} xmm1 = [49151,49151,49151,49151,49151,49151,49151,49151]
+; SSE-NEXT:    pcmpeqw %xmm0, %xmm1
+; SSE-NEXT:    pcmpeqd %xmm2, %xmm2
+; SSE-NEXT:    pcmpeqw %xmm2, %xmm0
+; SSE-NEXT:    pxor %xmm2, %xmm0
+; SSE-NEXT:    pandn %xmm0, %xmm1
+; SSE-NEXT:    movdqa %xmm1, %xmm0
+; SSE-NEXT:    retq
+  %cmp1 = icmp ne <8 x i16> %x, <i16 -16385, i16 -16385, i16 -16385, i16 -16385, i16 -16385, i16 -16385, i16 -16385, i16 -16385>
+  %cmp2 = icmp ne <8 x i16> %x, <i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1, i16 -1>
+  %r = and <8 x i1> %cmp1, %cmp2
+  ret <8 x i1> %r
+}
+
+; Intentional negative test.
+define <16 x i1> @andnot_ne_v16i8_fail_max_not_n1(<16 x i8> %x) nounwind {
+; AVX512-LABEL: andnot_ne_v16i8_fail_max_not_n1:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512-NEXT:    vpcmpeqb %xmm1, %xmm0, %xmm1
+; AVX512-NEXT:    vmovdqa {{.*#+}} xmm2 = [127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127]
+; AVX512-NEXT:    vpcmpgtb %xmm0, %xmm2, %xmm0
+; AVX512-NEXT:    vpandn %xmm0, %xmm1, %xmm0
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_ne_v16i8_fail_max_not_n1:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpcmpeqb %xmm1, %xmm0, %xmm1
+; AVX2-NEXT:    vmovdqa {{.*#+}} xmm2 = [127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127]
+; AVX2-NEXT:    vpcmpgtb %xmm0, %xmm2, %xmm0
+; AVX2-NEXT:    vpandn %xmm0, %xmm1, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE-LABEL: andnot_ne_v16i8_fail_max_not_n1:
+; SSE:       # %bb.0:
+; SSE-NEXT:    pcmpeqd %xmm1, %xmm1
+; SSE-NEXT:    pcmpeqb %xmm0, %xmm1
+; SSE-NEXT:    movdqa {{.*#+}} xmm2 = [127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127]
+; SSE-NEXT:    pcmpgtb %xmm0, %xmm2
+; SSE-NEXT:    pandn %xmm2, %xmm1
+; SSE-NEXT:    movdqa %xmm1, %xmm0
+; SSE-NEXT:    retq
+  %cmp1 = icmp ne <16 x i8> %x, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
+  %cmp2 = icmp ne <16 x i8> %x, <i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127, i8 127>
+  %r = and <16 x i1> %cmp1, %cmp2
+  ret <16 x i1> %r
+}
+
+define <16 x i1> @andnot_ne_v16i8(<16 x i8> %x) nounwind {
+; AVX512-LABEL: andnot_ne_v16i8:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX512-NEXT:    vpcmpeqb %xmm1, %xmm0, %xmm2
+; AVX512-NEXT:    vpcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX512-NEXT:    vpternlogq $18, %xmm1, %xmm2, %xmm0
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: andnot_ne_v16i8:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; AVX2-NEXT:    vpcmpeqb %xmm1, %xmm0, %xmm2
+; AVX2-NEXT:    vpcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    vpxor %xmm1, %xmm0, %xmm0
+; AVX2-NEXT:    vpandn %xmm0, %xmm2, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE-LABEL: andnot_ne_v16i8:
+; SSE:       # %bb.0:
+; SSE-NEXT:    pcmpeqd %xmm2, %xmm2
+; SSE-NEXT:    movdqa %xmm0, %xmm1
+; SSE-NEXT:    pcmpeqb %xmm2, %xmm1
+; SSE-NEXT:    pcmpeqb {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; SSE-NEXT:    pxor %xmm2, %xmm0
+; SSE-NEXT:    pandn %xmm0, %xmm1
+; SSE-NEXT:    movdqa %xmm1, %xmm0
+; SSE-NEXT:    retq
+  %cmp1 = icmp ne <16 x i8> %x, <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>
+  %cmp2 = icmp ne <16 x i8> %x, <i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33, i8 -33>
+  %r = and <16 x i1> %cmp1, %cmp2
+  ret <16 x i1> %r
+}
+
+define i1 @andnot_ne_i32(i32 %x) nounwind {
+; CHECK-LABEL: andnot_ne_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addl $1073741825, %edi # imm = 0x40000001
+; CHECK-NEXT:    testl $-1073741825, %edi # imm = 0xBFFFFFFF
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    retq
+  %cmp1 = icmp ne i32 %x, -1
+  %cmp2 = icmp ne i32 %x, -1073741825
+  %r = and i1 %cmp1, %cmp2
+  ret i1 %r
+}
+
+define i1 @addand_ne_i16(i16 %x) nounwind {
+; CHECK-LABEL: addand_ne_i16:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    cmpw $-3, %di
+; CHECK-NEXT:    setne %cl
+; CHECK-NEXT:    movzwl %di, %eax
+; CHECK-NEXT:    cmpl $16381, %eax # imm = 0x3FFD
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    andb %cl, %al
+; CHECK-NEXT:    retq
+  %cmp1 = icmp ne i16 %x, -3
+  %cmp2 = icmp ne i16 %x, 16381
+  %r = and i1 %cmp1, %cmp2
+  ret i1 %r
+}
+
+; Intentional negative test.
+define <8 x i1> @addand_ne_v8i16_fail(<8 x i16> %x) nounwind {
+; AVX512-LABEL: addand_ne_v8i16_fail:
+; AVX512:       # %bb.0:
+; AVX512-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1
+; AVX512-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX512-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX512-NEXT:    vpternlogq $18, %xmm2, %xmm1, %xmm0
+; AVX512-NEXT:    retq
+;
+; AVX2-LABEL: addand_ne_v8i16_fail:
+; AVX2:       # %bb.0:
+; AVX2-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm1
+; AVX2-NEXT:    vpcmpeqd %xmm2, %xmm2, %xmm2
+; AVX2-NEXT:    vpcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0, %xmm0
+; AVX2-NEXT:    vpxor %xmm2, %xmm0, %xmm0
+; AVX2-NEXT:    vpandn %xmm0, %xmm1, %xmm0
+; AVX2-NEXT:    retq
+;
+; SSE-LABEL: addand_ne_v8i16_fail:
+; SSE:       # %bb.0:
+; SSE-NEXT:    movdqa {{.*#+}} xmm1 = [65533,65533,65533,65533,65533,65533,65533,65533]
+; SSE-NEXT:    pcmpeqw %xmm0, %xmm1
+; SSE-NEXT:    pcmpeqd %xmm2, %xmm2
+; SSE-NEXT:    pcmpeqw {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
+; SSE-NEXT:    pxor %xmm2, %xmm0
+; SSE-NEXT:    pandn %xmm0, %xmm1
+; SSE-NEXT:    movdqa %xmm1, %xmm0
+; SSE-NEXT:    retq
+  %cmp1 = icmp ne <8 x i16> %x, <i16 -3, i16 -3, i16 -3, i16 -3, i16 -3, i16 -3, i16 -3, i16 -3>
+  %cmp2 = icmp ne <8 x i16> %x, <i16 16381, i16 16381, i16 16381, i16 16381, i16 16381, i16 16381, i16 16381, i16 16381>
+  %r = and <8 x i1> %cmp1, %cmp2
+  ret <8 x i1> %r
+}
+
+define i1 @addand_eq_i32(i32 %x) nounwind {
+; CHECK-LABEL: addand_eq_i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    cmpl $-1, %edi
+; CHECK-NEXT:    sete %cl
+; CHECK-NEXT:    cmpl $7, %edi
+; CHECK-NEXT:    sete %al
+; CHECK-NEXT:    orb %cl, %al
+; CHECK-NEXT:    retq
+  %cmp1 = icmp eq i32 %x, -1
+  %cmp2 = icmp eq i32 %x, 7
+  %r = or i1 %cmp1, %cmp2
+  ret i1 %r
+}
+
+; Intentional negative test.
+define i1 @addand_eq_i8_fail_abs_p2_minmax_not(i8 %x) nounwind {
+; CHECK-LABEL: addand_eq_i8_fail_abs_p2_minmax_not:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    cmpb $124, %dil
+; CHECK-NEXT:    sete %cl
+; CHECK-NEXT:    cmpb $-8, %dil
+; CHECK-NEXT:    sete %al
+; CHECK-NEXT:    orb %cl, %al
+; CHECK-NEXT:    retq
+  %cmp1 = icmp eq i8 %x, 124
+  %cmp2 = icmp eq i8 %x, -8
+  %r = or i1 %cmp1, %cmp2
+  ret i1 %r
+}
+
+define i1 @addand_ne_i8(i8 %x) nounwind {
+; CHECK-LABEL: addand_ne_i8:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    cmpb $59, %dil
+; CHECK-NEXT:    setne %cl
+; CHECK-NEXT:    cmpb $-5, %dil
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    andb %cl, %al
+; CHECK-NEXT:    retq
+  %cmp1 = icmp ne i8 %x, 59
+  %cmp2 = icmp ne i8 %x, -5
+  %r = and i1 %cmp1, %cmp2
+  ret i1 %r
+}
+
+; Intentional negative test.
+define i1 @addand_eq_i64_fail_non_p2_dif(i64 %x) nounwind {
+; CHECK-LABEL: addand_eq_i64_fail_non_p2_dif:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    cmpq $-8, %rdi
+; CHECK-NEXT:    setne %cl
+; CHECK-NEXT:    cmpq $-17, %rdi
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    andb %cl, %al
+; CHECK-NEXT:    retq
+  %cmp1 = icmp ne i64 %x, -8
+  %cmp2 = icmp ne i64 %x, -17
+  %r = and i1 %cmp1, %cmp2
+  ret i1 %r
+}
+
+define i1 @addand_eq_i64(i64 %x) nounwind {
+; CHECK-LABEL: addand_eq_i64:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    cmpq $768, %rdi # imm = 0x300
+; CHECK-NEXT:    setne %cl
+; CHECK-NEXT:    cmpq $-256, %rdi
+; CHECK-NEXT:    setne %al
+; CHECK-NEXT:    andb %cl, %al
+; CHECK-NEXT:    retq
+  %cmp1 = icmp ne i64 %x, 768
+  %cmp2 = icmp ne i64 %x, -256
+  %r = and i1 %cmp1, %cmp2
+  ret i1 %r
+}