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Interchange this loop so that we test all pointers against one call site

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before moving on to the next call site.  This will be a more efficient way
to compute the mod/ref set for AA implementations like DSA.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20866 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-03-26 22:16:44 +00:00
parent 7532e2f555
commit 0772e78789
1 changed files with 11 additions and 10 deletions
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21
lib/Analysis/AliasAnalysisEvaluator.cpp
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@ -156,15 +156,16 @@ bool AAEval::runOnFunction(Function &F) {
}
// Mod/ref alias analysis: compare all pairs of calls and values
for (std::set<Value *>::iterator V = Pointers.begin(), Ve = Pointers.end();
V != Ve; ++V) {
unsigned Size = 0;
const Type *ElTy = cast<PointerType>((*V)->getType())->getElementType();
if (ElTy->isSized()) Size = TD.getTypeSize(ElTy);
for (std::set<CallSite>::iterator C = CallSites.begin(),
Ce = CallSites.end(); C != Ce; ++C) {
Instruction *I = C->getInstruction();
for (std::set<CallSite>::iterator C = CallSites.begin(),
Ce = CallSites.end(); C != Ce; ++C) {
Instruction *I = C->getInstruction();
for (std::set<Value *>::iterator V = Pointers.begin(), Ve = Pointers.end();
V != Ve; ++V) {
unsigned Size = 0;
const Type *ElTy = cast<PointerType>((*V)->getType())->getElementType();
if (ElTy->isSized()) Size = TD.getTypeSize(ElTy);
switch (AA.getModRefInfo(*C, *V, Size)) {
case AliasAnalysis::NoModRef:
PrintModRefResults("NoModRef", PrintNoModRef, I, *V, F.getParent());
@ -183,7 +184,7 @@ bool AAEval::runOnFunction(Function &F) {
}
}
}
return false;
}