forked from OSchip/llvm-project
21 lines
924 B
LLVM
21 lines
924 B
LLVM
; RUN: opt < %s -constprop -instcombine -S | not grep {call.*llvm.memcpy.i32}
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@h = constant [2 x i8] c"h\00" ; <[2 x i8]*> [#uses=1]
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@hel = constant [4 x i8] c"hel\00" ; <[4 x i8]*> [#uses=1]
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@hello_u = constant [8 x i8] c"hello_u\00" ; <[8 x i8]*> [#uses=1]
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declare void @llvm.memcpy.i32(i8*, i8*, i32, i32)
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define i32 @main() {
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%h_p = getelementptr [2 x i8]* @h, i32 0, i32 0 ; <i8*> [#uses=1]
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%hel_p = getelementptr [4 x i8]* @hel, i32 0, i32 0 ; <i8*> [#uses=1]
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%hello_u_p = getelementptr [8 x i8]* @hello_u, i32 0, i32 0 ; <i8*> [#uses=1]
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%target = alloca [1024 x i8] ; <[1024 x i8]*> [#uses=1]
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%target_p = getelementptr [1024 x i8]* %target, i32 0, i32 0 ; <i8*> [#uses=3]
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call void @llvm.memcpy.i32( i8* %target_p, i8* %h_p, i32 2, i32 2 )
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call void @llvm.memcpy.i32( i8* %target_p, i8* %hel_p, i32 4, i32 4 )
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call void @llvm.memcpy.i32( i8* %target_p, i8* %hello_u_p, i32 8, i32 8 )
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ret i32 0
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}
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