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Make the representation of AliasSets explicitly differentiate

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between "not known yet" and "known no tbaa info" so that it
can merge them properly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116767 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-10-18 23:31:47 +00:00
parent 1be4ab681e
commit eee5400442
2 changed files with 11 additions and 15 deletions
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4
lib/Analysis/AliasSetTracker.cpp
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@ -377,7 +377,7 @@ void AliasSetTracker::add(const AliasSetTracker &AST) {
bool X;
for (AliasSet::iterator ASI = AS.begin(), E = AS.end(); ASI != E; ++ASI) {
AliasSet &NewAS = addPointer(ASI.getPointer(), ASI.getSize(),
ASI.getRawTBAAInfo(),
ASI.getTBAAInfo(),
(AliasSet::AccessType)AS.AccessTy, X);
if (AS.isVolatile()) NewAS.setVolatile();
}
@ -533,7 +533,7 @@ void AliasSetTracker::copyValue(Value *From, Value *To) {
I = PointerMap.find(From);
AliasSet *AS = I->second->getAliasSet(*this);
AS->addPointer(*this, Entry, I->second->getSize(),
I->second->getRawTBAAInfo(),
I->second->getTBAAInfo(),
true);
}