; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-- -mattr=+sse4.1 | FileCheck %s --check-prefixes=CHECK,SSE ; RUN: llc < %s -mtriple=x86_64-- -mattr=+avx2 | FileCheck %s --check-prefixes=CHECK,AVX define i16 @mulhs(i16 %a0, i16 %a1) { ; CHECK-LABEL: mulhs: ; CHECK: # %bb.0: ; CHECK-NEXT: movswl %si, %ecx ; CHECK-NEXT: movswl %di, %eax ; CHECK-NEXT: imull %ecx, %eax ; CHECK-NEXT: shrl $16, %eax ; CHECK-NEXT: # kill: def $ax killed $ax killed $eax ; CHECK-NEXT: retq %x0 = sext i16 %a0 to i32 %x1 = sext i16 %a1 to i32 %v0 = insertelement <1 x i32> , i32 %x0, i32 0 %v1 = insertelement <1 x i32> , i32 %x1, i32 0 %mul = mul nsw <1 x i32> %v0, %v1 %lshr = lshr <1 x i32> %mul, %trunc = trunc <1 x i32> %lshr to <1 x i16> %res = extractelement <1 x i16> %trunc, i32 0 ret i16 %res } define i16 @mulhu(i16 %a0, i16 %a1) { ; SSE-LABEL: mulhu: ; SSE: # %bb.0: ; SSE-NEXT: movzwl %si, %ecx ; SSE-NEXT: movzwl %di, %eax ; SSE-NEXT: imull %ecx, %eax ; SSE-NEXT: shrl $16, %eax ; SSE-NEXT: # kill: def $ax killed $ax killed $eax ; SSE-NEXT: retq ; ; AVX-LABEL: mulhu: ; AVX: # %bb.0: ; AVX-NEXT: vmovd %edi, %xmm0 ; AVX-NEXT: vmovd %esi, %xmm1 ; AVX-NEXT: vpmulhuw %xmm1, %xmm0, %xmm0 ; AVX-NEXT: vmovd %xmm0, %eax ; AVX-NEXT: # kill: def $ax killed $ax killed $eax ; AVX-NEXT: retq %x0 = zext i16 %a0 to i32 %x1 = zext i16 %a1 to i32 %v0 = insertelement <1 x i32> , i32 %x0, i32 0 %v1 = insertelement <1 x i32> , i32 %x1, i32 0 %mul = mul nsw <1 x i32> %v0, %v1 %lshr = lshr <1 x i32> %mul, %trunc = trunc <1 x i32> %lshr to <1 x i16> %res = extractelement <1 x i16> %trunc, i32 0 ret i16 %res }