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In some rare cases, the register allocator can spill registers but end up not utilizi...
[llvm/msp430.git]
/
test
/
Analysis
/
BasicAA
/
2003-09-19-LocalArgument.ll
blob
e2bb86dcb226adf3d79fbfe41bfc90bfd0b27994
1
; In this test, a local alloca cannot alias an incoming argument.
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; RUN: llvm-as < %s | opt -gvn -instcombine | llvm-dis | not grep sub
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define i32 @test(i32* %P) {
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%X = alloca i32
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%V1 = load i32* %P
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store i32 0, i32* %X
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%V2 = load i32* %P
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%Diff = sub i32 %V1, %V2
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ret i32 %Diff
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}