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New testcase

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30683 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-10-01 22:35:45 +00:00
parent e831b9a48b
commit b363312940
1 changed files with 23 additions and 0 deletions
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23
test/Analysis/GlobalsModRef/indirect-global.ll Normal file
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; RUN: llvm-as < %s | opt -globalsmodref-aa -load-vn -gcse -instcombine | llvm-dis | grep 'ret int 0'
%G = internal global int* null
implementation
void %test() {
%A = malloc int
store int* %A, int** %G
ret void
}
int %test1(int *%P) {
%g1 = load int** %G
%h1 = load int* %g1
; This store cannot alias either G or g1.
store int 123, int* %P
%g2 = load int** %G
%h2 = load int* %g1
%X = sub int %h1, %h2 ;; -> 0
ret int %X
}