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If there is a store after the load node, then there is a chain, which means that there is another user. Thus, asking hasOneUser would fail. Instead we ask hasNUsesOfValue on the 'data' value. llvm-svn: 131183
32 lines
778 B
LLVM
32 lines
778 B
LLVM
; RUN: llc < %s -mcpu=corei7 -march=x86 -mattr=+sse41 -o %t
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; RUN: not grep extractps %t
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; RUN: not grep pextrd %t
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; RUN: not grep pshufd %t
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; RUN: grep movss %t | count 2
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define void @t1(float* %R, <4 x float>* %P1) nounwind {
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%X = load <4 x float>* %P1
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%tmp = extractelement <4 x float> %X, i32 3
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store float %tmp, float* %R
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ret void
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}
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define float @t2(<4 x float>* %P1) nounwind {
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%X = load <4 x float>* %P1
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%tmp = extractelement <4 x float> %X, i32 2
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ret float %tmp
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}
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define void @t3(i32* %R, <4 x i32>* %P1) nounwind {
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%X = load <4 x i32>* %P1
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%tmp = extractelement <4 x i32> %X, i32 3
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store i32 %tmp, i32* %R
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ret void
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}
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define i32 @t4(<4 x i32>* %P1) nounwind {
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%X = load <4 x i32>* %P1
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%tmp = extractelement <4 x i32> %X, i32 3
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ret i32 %tmp
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}
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