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[X86][SSE] Add test for PR30264 (combining multiple constants inputs in a shuffle) 

llvm-svn: 301915
This commit is contained in:
Simon Pilgrim 2017-05-02 12:25:17 +00:00
parent 03c8963c32
commit 6615bde93b
1 changed files with 34 additions and 0 deletions
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34
llvm/test/CodeGen/X86/vector-shuffle-combining.ll
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@ -2899,3 +2899,37 @@ entry:
%s2 = shufflevector <8 x float> %s1, <8 x float> undef, <8 x i32> <i32 1, i32 0, i32 7, i32 6, i32 5, i32 4, i32 3, i32 2>
ret <8 x float> %s2
}
define <4 x float> @PR30264(<4 x float> %x) {
; SSE2-LABEL: PR30264:
; SSE2: # BB#0:
; SSE2-NEXT: xorps %xmm1, %xmm1
; SSE2-NEXT: shufps {{.*#+}} xmm1 = xmm1[1,0],xmm0[0,0]
; SSE2-NEXT: shufps {{.*#+}} xmm1 = xmm1[2,0],mem[2,3]
; SSE2-NEXT: movaps %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSSE3-LABEL: PR30264:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorps %xmm1, %xmm1
; SSSE3-NEXT: shufps {{.*#+}} xmm1 = xmm1[1,0],xmm0[0,0]
; SSSE3-NEXT: shufps {{.*#+}} xmm1 = xmm1[2,0],mem[2,3]
; SSSE3-NEXT: movaps %xmm1, %xmm0
; SSSE3-NEXT: retq
;
; SSE41-LABEL: PR30264:
; SSE41: # BB#0:
; SSE41-NEXT: movaps {{.*#+}} xmm1 = <u,u,4,1>
; SSE41-NEXT: insertps {{.*#+}} xmm1 = xmm0[0],zero,xmm1[2,3]
; SSE41-NEXT: movaps %xmm1, %xmm0
; SSE41-NEXT: retq
;
; AVX-LABEL: PR30264:
; AVX: # BB#0:
; AVX-NEXT: vmovaps {{.*#+}} xmm1 = <u,u,4,1>
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = xmm0[0],zero,xmm1[2,3]
; AVX-NEXT: retq
%shuf1 = shufflevector <4 x float> %x, <4 x float> <float undef, float 0.0, float undef, float undef>, <4 x i32> <i32 0, i32 5, i32 undef, i32 undef>
%shuf2 = shufflevector <4 x float> %shuf1, <4 x float> <float undef, float undef, float 4.0, float 1.0>, <4 x i32> <i32 0, i32 1, i32 6, i32 7>
ret <4 x float> %shuf2
}