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[X86] Add test case to show failure to handle splat vectors in the constant check in LowerFCOPYSIGN. 

llvm-svn: 345483
This commit is contained in:
Craig Topper 2018-10-28 23:51:33 +00:00
parent ec77a6517f
commit 8164f3923e
1 changed files with 20 additions and 0 deletions
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20
llvm/test/CodeGen/X86/sse1-fcopysign.ll
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@ -68,5 +68,25 @@ define <4 x float> @v4f32_neg(<4 x float> %a, <4 x float> %b) nounwind {
ret <4 x float> %tmp
}
define <4 x float> @v4f32_const_mag(<4 x float> %a, <4 x float> %b) nounwind {
; X86-LABEL: v4f32_const_mag:
; X86: # %bb.0:
; X86-NEXT: andps {{\.LCPI.*}}, %xmm1
; X86-NEXT: movaps {{.*#+}} xmm0 = [1,1,1,1]
; X86-NEXT: andps {{\.LCPI.*}}, %xmm0
; X86-NEXT: orps %xmm1, %xmm0
; X86-NEXT: retl
;
; X64-LABEL: v4f32_const_mag:
; X64: # %bb.0:
; X64-NEXT: andps {{.*}}(%rip), %xmm1
; X64-NEXT: movaps {{.*#+}} xmm0 = [1,1,1,1]
; X64-NEXT: andps {{.*}}(%rip), %xmm0
; X64-NEXT: orps %xmm1, %xmm0
; X64-NEXT: retq
%tmp = tail call <4 x float> @llvm.copysign.v4f32(<4 x float> <float 1.0, float 1.0, float 1.0, float 1.0>, <4 x float> %b )
ret <4 x float> %tmp
}
declare float @llvm.copysign.f32(float, float)
declare <4 x float> @llvm.copysign.v4f32(<4 x float>, <4 x float>)