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ab26227c8c
shift. - Add a readme entry for a missing vector_shuffle optimization that results in awful codegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52740 91177308-0d34-0410-b5e6-96231b3b80d8
10 lines
431 B
LLVM
10 lines
431 B
LLVM
; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep pslldq
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define void @t() nounwind {
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entry:
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%tmp1 = shufflevector <4 x float> zeroinitializer, <4 x float> < float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00 >, <4 x i32> < i32 0, i32 1, i32 4, i32 5 >
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%tmp2 = insertelement <4 x float> %tmp1, float 1.000000e+00, i32 3
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store <4 x float> %tmp2, <4 x float>* null, align 16
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unreachable
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}
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