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New testcase, the optimizer can delete zero sized allocas
[oota-llvm.git]
/
test
/
Transforms
/
InstCombine
/
alloca.ll
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; Zero byte allocas should be deleted.
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep alloca
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declare void %use(...)
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void %test() {
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%X = alloca [0 x int]
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call void(...)* %use([0 x int] *%X)
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%Y = alloca int, uint 0
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call void(...)* %use(int* %Y)
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%Z = alloca {}
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call void(...)* %use({}* %Z)
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ret void
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}