--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=X32
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=X64
+
+define i1 @mulhioverflow(i64 %a, i64 %b, i64 %c) nounwind {
+; X32-LABEL: mulhioverflow:
+; X32: # BB#0:
+; X32-NEXT: pushl %ebp
+; X32-NEXT: movl %esp, %ebp
+; X32-NEXT: pushl %esi
+; X32-NEXT: andl $-8, %esp
+; X32-NEXT: subl $24, %esp
+; X32-NEXT: movl 24(%ebp), %esi
+; X32-NEXT: movl %esp, %eax
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl 20(%ebp)
+; X32-NEXT: pushl 16(%ebp)
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl $0
+; X32-NEXT: pushl 12(%ebp)
+; X32-NEXT: pushl 8(%ebp)
+; X32-NEXT: pushl %eax
+; X32-NEXT: calll __multi3
+; X32-NEXT: addl $32, %esp
+; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT: andl $1, %esi
+; X32-NEXT: addl {{[0-9]+}}(%esp), %esi
+; X32-NEXT: adcl $0, %eax
+; X32-NEXT: setb %al
+; X32-NEXT: leal -4(%ebp), %esp
+; X32-NEXT: popl %esi
+; X32-NEXT: popl %ebp
+; X32-NEXT: retl
+;
+; X64-LABEL: mulhioverflow:
+; X64: # BB#0:
+; X64-NEXT: movq %rdx, %rcx
+; X64-NEXT: movq %rdi, %rax
+; X64-NEXT: mulq %rsi
+; X64-NEXT: andl $1, %ecx
+; X64-NEXT: addq %rdx, %rcx
+; X64-NEXT: setb %al
+; X64-NEXT: retq
+ %1 = zext i64 %a to i128
+ %2 = zext i64 %b to i128
+ %3 = mul i128 %1, %2
+ %4 = lshr i128 %3, 64
+ %5 = and i64 %c, 1
+ %6 = zext i64 %5 to i128
+ %7 = add i128 %4, %6
+ %8 = lshr i128 %7, 64
+ %9 = trunc i128 %8 to i1
+ ret i1 %9
+}