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a723d1e48f
GVN and into its own pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
519 B
LLVM
20 lines
519 B
LLVM
; RUN: llvm-as < %s | opt -memcpyopt | llvm-dis | not grep {call.*memcpy.}
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%a = type { i32 }
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%b = type { float }
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declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) nounwind
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declare void @g(%a*)
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define float @f() {
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entry:
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%a_var = alloca %a
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%b_var = alloca %b
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call void @g(%a *%a_var)
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%a_i8 = bitcast %a* %a_var to i8*
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%b_i8 = bitcast %b* %b_var to i8*
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call void @llvm.memcpy.i32(i8* %b_i8, i8* %a_i8, i32 4, i32 4)
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%tmp1 = getelementptr %b* %b_var, i32 0, i32 0
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%tmp2 = load float* %tmp1
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ret float %tmp2
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}
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