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has a different number of elements than the output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62998 91177308-0d34-0410-b5e6-96231b3b80d8
19 lines
916 B
LLVM
19 lines
916 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep undef | count 1
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; END.
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; Test fold of two shuffles where the first shuffle vectors inputs are a
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; different length then the second.
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define void @test_cl(<4 x i8> addrspace(1)* %dest, <16 x i8> addrspace(1)* %old) nounwind {
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entry:
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%arrayidx = getelementptr <4 x i8> addrspace(1)* %dest, i32 0 ; <<4 x i8> addrspace(1)*> [#uses=1]
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%arrayidx5 = getelementptr <16 x i8> addrspace(1)* %old, i32 0 ; <<16 x i8> addrspace(1)*> [#uses=1]
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%tmp6 = load <16 x i8> addrspace(1)* %arrayidx5 ; <<16 x i8>> [#uses=1]
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%tmp7 = shufflevector <16 x i8> %tmp6, <16 x i8> undef, <4 x i32> < i32 13, i32 9, i32 4, i32 13 > ; <<4 x i8>> [#uses=1]
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%tmp9 = shufflevector <4 x i8> %tmp7, <4 x i8> undef, <4 x i32> < i32 3, i32 1, i32 2, i32 0 > ; <<4 x i8>> [#uses=1]
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store <4 x i8> %tmp9, <4 x i8> addrspace(1)* %arrayidx
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ret void
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return: ; preds = %entry
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ret void
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} |