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42febc6e99
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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131183 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; RUN: llc < %s -mcpu=corei7 -march=x86 -mattr=+sse2,-sse41 -o %t
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; RUN: grep movss %t | count 4
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; RUN: grep movhlps %t | count 1
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; RUN: not grep pshufd %t
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; RUN: grep unpckhpd %t | count 1
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define void @test1(<4 x float>* %F, float* %f) nounwind {
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%tmp = load <4 x float>* %F ; <<4 x float>> [#uses=2]
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%tmp7 = fadd <4 x float> %tmp, %tmp ; <<4 x float>> [#uses=1]
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%tmp2 = extractelement <4 x float> %tmp7, i32 0 ; <float> [#uses=1]
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store float %tmp2, float* %f
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ret void
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}
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define float @test2(<4 x float>* %F, float* %f) nounwind {
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%tmp = load <4 x float>* %F ; <<4 x float>> [#uses=2]
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%tmp7 = fadd <4 x float> %tmp, %tmp ; <<4 x float>> [#uses=1]
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%tmp2 = extractelement <4 x float> %tmp7, i32 2 ; <float> [#uses=1]
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ret float %tmp2
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}
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define void @test3(float* %R, <4 x float>* %P1) nounwind {
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%X = load <4 x float>* %P1 ; <<4 x float>> [#uses=1]
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%tmp = extractelement <4 x float> %X, i32 3 ; <float> [#uses=1]
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store float %tmp, float* %R
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ret void
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}
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define double @test4(double %A) nounwind {
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%tmp1 = call <2 x double> @foo( ) ; <<2 x double>> [#uses=1]
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%tmp2 = extractelement <2 x double> %tmp1, i32 1 ; <double> [#uses=1]
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%tmp3 = fadd double %tmp2, %A ; <double> [#uses=1]
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ret double %tmp3
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}
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declare <2 x double> @foo()
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