llvm/test/CodeGen/X86/shift-pcmp.ll
2016-07-11 14:17:54 +00:00

46 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: llc < %s -o - -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -o - -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX
define <8 x i16> @foo(<8 x i16> %a, <8 x i16> %b) {
; SSE-LABEL: foo:
; SSE: # BB#0:
; SSE-NEXT: pcmpeqw %xmm1, %xmm0
; SSE-NEXT: pand {{.*}}(%rip), %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: foo:
; AVX: # BB#0:
; AVX-NEXT: vpcmpeqw %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0
; AVX-NEXT: retq
;
%icmp = icmp eq <8 x i16> %a, %b
%zext = zext <8 x i1> %icmp to <8 x i16>
%shl = shl nuw nsw <8 x i16> %zext, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5>
ret <8 x i16> %shl
}
; Don't fail with an assert due to an undef in the buildvector
define <8 x i16> @bar(<8 x i16> %a, <8 x i16> %b) {
; SSE-LABEL: bar:
; SSE: # BB#0:
; SSE-NEXT: pcmpeqw %xmm1, %xmm0
; SSE-NEXT: pand {{.*}}(%rip), %xmm0
; SSE-NEXT: psllw $5, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: bar:
; AVX: # BB#0:
; AVX-NEXT: vpcmpeqw %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0
; AVX-NEXT: vpsllw $5, %xmm0, %xmm0
; AVX-NEXT: retq
;
%icmp = icmp eq <8 x i16> %a, %b
%zext = zext <8 x i1> %icmp to <8 x i16>
%shl = shl nuw nsw <8 x i16> %zext, <i16 5, i16 undef, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5>
ret <8 x i16> %shl
}