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New testcase, the optimizer can delete zero sized allocas

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llvm-svn: 12506
This commit is contained in:
Chris Lattner 2004-03-19 06:07:43 +00:00
parent eb5ced99d6
commit ec8d5d563b
1 changed files with 14 additions and 0 deletions
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14
test/Regression/Transforms/InstCombine/alloca.ll Normal file
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; Zero byte allocas should be deleted.
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep alloca
declare void %use(...)
void %test() {
%X = alloca [0 x int]
call void(...)* %use([0 x int] *%X)
%Y = alloca int, uint 0
call void(...)* %use(int* %Y)
%Z = alloca {}
call void(...)* %use({}* %Z)
ret void
}