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Due to a bug in BasicAA, DSE is incorrectly deleting the first store in

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this testcase, causing the miscompilation of MallocBench/gs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15315 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-07-29 01:33:05 +00:00
parent 9bd2be2dcd
commit 08f998f08d
2 changed files with 20 additions and 0 deletions
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10
test/Analysis/BasicAA/2004-07-28-MustAliasbug.llx Normal file
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; RUN: llvm-as < %s | opt -dse | llvm-dis | grep 'store int 0'
void %test({int,int }* %P) {
%Q = getelementptr {int,int}* %P, int 1
%X = getelementptr {int,int}* %Q, int 0, uint 1
%Y = getelementptr {int,int}* %Q, int 1, uint 1
store int 0, int* %X
store int 1, int* %Y
ret void
}

10
test/Transforms/BasicAA/2004-07-28-MustAliasbug.llx Normal file
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; RUN: llvm-as < %s | opt -dse | llvm-dis | grep 'store int 0'
void %test({int,int }* %P) {
%Q = getelementptr {int,int}* %P, int 1
%X = getelementptr {int,int}* %Q, int 0, uint 1
%Y = getelementptr {int,int}* %Q, int 1, uint 1
store int 0, int* %X
store int 1, int* %Y
ret void
}