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Ok, the assertion was bogus. Calls that do not read/write memory should not

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have an alias set, just like adds and subtracts don't.

llvm-svn: 12422
This commit is contained in:
Chris Lattner 2004-03-15 06:28:07 +00:00
parent 5654b5de80
commit 19ce9dbb05
1 changed files with 6 additions and 0 deletions
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6
lib/Analysis/AliasSetTracker.cpp
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@ -117,6 +117,8 @@ void AliasSet::addCallSite(CallSite CS, AliasAnalysis &AA) {
bool AliasSet::aliasesPointer(const Value *Ptr, unsigned Size,
AliasAnalysis &AA) const {
if (AliasTy == MustAlias) {
assert(CallSites.empty() && "Illegal must alias set!");
// If this is a set of MustAliases, only check to see if the pointer aliases
// SOME value in the set...
HashNodePair *SomePtr = getSomePointer();
@ -222,6 +224,10 @@ void AliasSetTracker::add(StoreInst *SI) {
void AliasSetTracker::add(CallSite CS) {
if (Function *F = CS.getCalledFunction())
if (AA.doesNotAccessMemory(F))
return;
AliasSet *AS = findAliasSetForCallSite(CS);
if (!AS) {
AliasSets.push_back(AliasSet());