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the new load by the old load instead of by the extract element because a store could have occurred between the load and extract element. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78891 91177308-0d34-0410-b5e6-96231b3b80d8
23 lines
953 B
LLVM
23 lines
953 B
LLVM
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | FileCheck %s
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; The load replacing the extract element must occur before the call
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; that may modify local array a.
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declare void @mod_a_func(<4 x float>* %a);
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; CHECK: load float* %arraydecay1, align 16
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; CHECK: call void @mod_a_func
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define void @cl_jpegenc_k2(<4 x float> addrspace(1)* %src, float addrspace(1)* %dst) {
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%a = alloca [2 x <4 x float>], align 16
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%arraydecay = getelementptr [2 x <4 x float>]* %a, i32 0, i32 0
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%arrayidx31 = getelementptr <4 x float> addrspace(1)* %src, i32 0
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%tmp32 = load <4 x float> addrspace(1)* %arrayidx31
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store <4 x float> %tmp32, <4 x float>* %arraydecay, align 16
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%tmp86 = load <4 x float>* %arraydecay, align 16
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call void @mod_a_func(<4 x float>* %arraydecay)
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%arrayidx132 = getelementptr float addrspace(1)* %dst, i32 0
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%tmp236 = extractelement <4 x float> %tmp86, i32 0
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store float %tmp236, float addrspace(1)* %arrayidx132
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ret void
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} |