diff --git a/llvm/test/CodeGen/PowerPC/add-int128-madd.ll b/llvm/test/CodeGen/PowerPC/add-int128-madd.ll
new file mode 100644
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/add-int128-madd.ll
@@ -0,0 +1,350 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -verify-machineinstrs -mcpu=pwr9 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s --check-prefix=CHECK-P9
+; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu < %s | FileCheck %s --check-prefix=CHECK-P8
+
+define i128 @add_int64_sext(i64 noundef %a, i64 noundef %b, i64 noundef %c) {
+; CHECK-P9-LABEL: add_int64_sext:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhd 4, 4, 3
+; CHECK-P9-NEXT:    sradi 7, 5, 63
+; CHECK-P9-NEXT:    addc 3, 6, 5
+; CHECK-P9-NEXT:    adde 4, 4, 7
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_int64_sext:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhd 4, 4, 3
+; CHECK-P8-NEXT:    sradi 7, 5, 63
+; CHECK-P8-NEXT:    addc 3, 6, 5
+; CHECK-P8-NEXT:    adde 4, 4, 7
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = sext i64 %a to i128
+  %conv1 = sext i64 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = sext i64 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_int64_zext(i64 noundef %a, i64 noundef %b, i64 noundef %c) {
+; CHECK-P9-LABEL: add_int64_zext:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhdu 4, 4, 3
+; CHECK-P9-NEXT:    addc 3, 6, 5
+; CHECK-P9-NEXT:    addze 4, 4
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_int64_zext:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhdu 4, 4, 3
+; CHECK-P8-NEXT:    addc 3, 6, 5
+; CHECK-P8-NEXT:    addze 4, 4
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = zext i64 %a to i128
+  %conv1 = zext i64 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = zext i64 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_int64_hybrid_ext(i64 noundef %a, i64 noundef %b, i64 noundef %c) {
+; CHECK-P9-LABEL: add_int64_hybrid_ext:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    mulhdu 7, 4, 3
+; CHECK-P9-NEXT:    sradi 6, 3, 63
+; CHECK-P9-NEXT:    mulld 3, 4, 3
+; CHECK-P9-NEXT:    maddld 6, 4, 6, 7
+; CHECK-P9-NEXT:    sradi 4, 5, 63
+; CHECK-P9-NEXT:    addc 3, 3, 5
+; CHECK-P9-NEXT:    adde 4, 6, 4
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_int64_hybrid_ext:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    sradi 6, 3, 63
+; CHECK-P8-NEXT:    mulhdu 7, 4, 3
+; CHECK-P8-NEXT:    mulld 6, 4, 6
+; CHECK-P8-NEXT:    mulld 3, 4, 3
+; CHECK-P8-NEXT:    sradi 4, 5, 63
+; CHECK-P8-NEXT:    add 6, 7, 6
+; CHECK-P8-NEXT:    addc 3, 3, 5
+; CHECK-P8-NEXT:    adde 4, 6, 4
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = sext i64 %a to i128
+  %conv1 = zext i64 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = sext i64 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_int64_swap(i64 noundef %a, i64 noundef %b, i64 noundef %c) {
+; CHECK-P9-LABEL: add_int64_swap:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhd 4, 4, 3
+; CHECK-P9-NEXT:    sradi 7, 5, 63
+; CHECK-P9-NEXT:    addc 3, 5, 6
+; CHECK-P9-NEXT:    adde 4, 7, 4
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_int64_swap:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhd 4, 4, 3
+; CHECK-P8-NEXT:    sradi 7, 5, 63
+; CHECK-P8-NEXT:    addc 3, 5, 6
+; CHECK-P8-NEXT:    adde 4, 7, 4
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = sext i64 %a to i128
+  %conv1 = sext i64 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = sext i64 %c to i128
+  %add = add nsw i128 %conv2, %mul
+  ret i128 %add
+}
+
+define i128 @add_mix_zext(i63 noundef %a, i63 noundef %b, i64 noundef %c) {
+; CHECK-P9-LABEL: add_mix_zext:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    clrldi 3, 3, 1
+; CHECK-P9-NEXT:    clrldi 4, 4, 1
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhdu 4, 4, 3
+; CHECK-P9-NEXT:    addc 3, 6, 5
+; CHECK-P9-NEXT:    addze 4, 4
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_mix_zext:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    clrldi 3, 3, 1
+; CHECK-P8-NEXT:    clrldi 4, 4, 1
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhdu 4, 4, 3
+; CHECK-P8-NEXT:    addc 3, 6, 5
+; CHECK-P8-NEXT:    addze 4, 4
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = zext i63 %a to i128
+  %conv1 = zext i63 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = zext i64 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_int63_sext(i63 noundef %a, i63 noundef %b, i63 noundef %c) {
+; CHECK-P9-LABEL: add_int63_sext:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    sldi 3, 3, 1
+; CHECK-P9-NEXT:    sldi 4, 4, 1
+; CHECK-P9-NEXT:    sradi 3, 3, 1
+; CHECK-P9-NEXT:    sradi 4, 4, 1
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhd 4, 4, 3
+; CHECK-P9-NEXT:    sldi 3, 5, 1
+; CHECK-P9-NEXT:    sradi 5, 3, 1
+; CHECK-P9-NEXT:    sradi 7, 3, 63
+; CHECK-P9-NEXT:    addc 3, 6, 5
+; CHECK-P9-NEXT:    adde 4, 4, 7
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_int63_sext:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    sldi 3, 3, 1
+; CHECK-P8-NEXT:    sldi 4, 4, 1
+; CHECK-P8-NEXT:    sradi 3, 3, 1
+; CHECK-P8-NEXT:    sradi 4, 4, 1
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhd 4, 4, 3
+; CHECK-P8-NEXT:    sldi 3, 5, 1
+; CHECK-P8-NEXT:    sradi 5, 3, 1
+; CHECK-P8-NEXT:    sradi 7, 3, 63
+; CHECK-P8-NEXT:    addc 3, 6, 5
+; CHECK-P8-NEXT:    adde 4, 4, 7
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = sext i63 %a to i128
+  %conv1 = sext i63 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = sext i63 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_int63_zext(i63 noundef %a, i63 noundef %b, i63 noundef %c) {
+; CHECK-P9-LABEL: add_int63_zext:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    clrldi 3, 3, 1
+; CHECK-P9-NEXT:    clrldi 4, 4, 1
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhdu 4, 4, 3
+; CHECK-P9-NEXT:    clrldi 3, 5, 1
+; CHECK-P9-NEXT:    addc 3, 6, 3
+; CHECK-P9-NEXT:    addze 4, 4
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_int63_zext:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    clrldi 3, 3, 1
+; CHECK-P8-NEXT:    clrldi 4, 4, 1
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhdu 4, 4, 3
+; CHECK-P8-NEXT:    clrldi 3, 5, 1
+; CHECK-P8-NEXT:    addc 3, 6, 3
+; CHECK-P8-NEXT:    addze 4, 4
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = zext i63 %a to i128
+  %conv1 = zext i63 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = zext i63 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_int63_hybrid_ext(i63 noundef %a, i63 noundef %b, i63 noundef %c) {
+; CHECK-P9-LABEL: add_int63_hybrid_ext:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    sldi 3, 3, 1
+; CHECK-P9-NEXT:    clrldi 4, 4, 1
+; CHECK-P9-NEXT:    sradi 3, 3, 1
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhd 4, 4, 3
+; CHECK-P9-NEXT:    sldi 3, 5, 1
+; CHECK-P9-NEXT:    sradi 5, 3, 1
+; CHECK-P9-NEXT:    sradi 7, 3, 63
+; CHECK-P9-NEXT:    addc 3, 6, 5
+; CHECK-P9-NEXT:    adde 4, 4, 7
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_int63_hybrid_ext:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    sldi 3, 3, 1
+; CHECK-P8-NEXT:    clrldi 4, 4, 1
+; CHECK-P8-NEXT:    sradi 3, 3, 1
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhd 4, 4, 3
+; CHECK-P8-NEXT:    sldi 3, 5, 1
+; CHECK-P8-NEXT:    sradi 5, 3, 1
+; CHECK-P8-NEXT:    sradi 7, 3, 63
+; CHECK-P8-NEXT:    addc 3, 6, 5
+; CHECK-P8-NEXT:    adde 4, 4, 7
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = sext i63 %a to i128
+  %conv1 = zext i63 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = sext i63 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_invalid1(i65 noundef %a, i64 noundef %b, i64 noundef %c) {
+; CHECK-P9-LABEL: add_invalid1:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    mulhdu 8, 5, 3
+; CHECK-P9-NEXT:    clrldi 4, 4, 63
+; CHECK-P9-NEXT:    sradi 7, 5, 63
+; CHECK-P9-NEXT:    neg 4, 4
+; CHECK-P9-NEXT:    maddld 4, 5, 4, 8
+; CHECK-P9-NEXT:    maddld 4, 7, 3, 4
+; CHECK-P9-NEXT:    mulld 3, 5, 3
+; CHECK-P9-NEXT:    sradi 5, 6, 63
+; CHECK-P9-NEXT:    addc 3, 3, 6
+; CHECK-P9-NEXT:    adde 4, 4, 5
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_invalid1:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    clrldi 4, 4, 63
+; CHECK-P8-NEXT:    sradi 7, 5, 63
+; CHECK-P8-NEXT:    neg 4, 4
+; CHECK-P8-NEXT:    mulhdu 8, 5, 3
+; CHECK-P8-NEXT:    mulld 4, 5, 4
+; CHECK-P8-NEXT:    mulld 7, 7, 3
+; CHECK-P8-NEXT:    mulld 3, 5, 3
+; CHECK-P8-NEXT:    sradi 5, 6, 63
+; CHECK-P8-NEXT:    add 4, 8, 4
+; CHECK-P8-NEXT:    add 4, 4, 7
+; CHECK-P8-NEXT:    addc 3, 3, 6
+; CHECK-P8-NEXT:    adde 4, 4, 5
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = sext i65 %a to i128
+  %conv1 = sext i64 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = sext i64 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_highDWZero(i32 noundef %a, i31 noundef %b, i63 noundef %c) {
+; CHECK-P9-LABEL: add_highDWZero:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    clrldi 3, 3, 32
+; CHECK-P9-NEXT:    clrldi 4, 4, 33
+; CHECK-P9-NEXT:    clrldi 5, 5, 1
+; CHECK-P9-NEXT:    maddld 3, 4, 3, 5
+; CHECK-P9-NEXT:    li 4, 0
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_highDWZero:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    clrldi 3, 3, 32
+; CHECK-P8-NEXT:    clrldi 4, 4, 33
+; CHECK-P8-NEXT:    mulld 3, 4, 3
+; CHECK-P8-NEXT:    clrldi 4, 5, 1
+; CHECK-P8-NEXT:    add 3, 3, 4
+; CHECK-P8-NEXT:    li 4, 0
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = zext i32 %a to i128
+  %conv1 = zext i31 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = zext i63 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}
+
+define i128 @add_sext_highDWNonZero(i16 noundef %a, i16 noundef %b, i16 noundef %c) {
+; CHECK-P9-LABEL: add_sext_highDWNonZero:
+; CHECK-P9:       # %bb.0: # %entry
+; CHECK-P9-NEXT:    extsh 3, 3
+; CHECK-P9-NEXT:    extsh 4, 4
+; CHECK-P9-NEXT:    mulld 6, 4, 3
+; CHECK-P9-NEXT:    mulhd 4, 4, 3
+; CHECK-P9-NEXT:    extsh 3, 5
+; CHECK-P9-NEXT:    sradi 5, 3, 63
+; CHECK-P9-NEXT:    addc 3, 6, 3
+; CHECK-P9-NEXT:    adde 4, 4, 5
+; CHECK-P9-NEXT:    blr
+;
+; CHECK-P8-LABEL: add_sext_highDWNonZero:
+; CHECK-P8:       # %bb.0: # %entry
+; CHECK-P8-NEXT:    extsh 3, 3
+; CHECK-P8-NEXT:    extsh 4, 4
+; CHECK-P8-NEXT:    mulld 6, 4, 3
+; CHECK-P8-NEXT:    mulhd 4, 4, 3
+; CHECK-P8-NEXT:    extsh 3, 5
+; CHECK-P8-NEXT:    sradi 5, 3, 63
+; CHECK-P8-NEXT:    addc 3, 6, 3
+; CHECK-P8-NEXT:    adde 4, 4, 5
+; CHECK-P8-NEXT:    blr
+entry:
+  %conv = sext i16 %a to i128
+  %conv1 = sext i16 %b to i128
+  %mul = mul nsw i128 %conv1, %conv
+  %conv2 = sext i16 %c to i128
+  %add = add nsw i128 %mul, %conv2
+  ret i128 %add
+}