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Avoid using BasicBlock::getInstList directly in a few places.

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llvm-svn: 52497
This commit is contained in:
Dan Gohman 2008-06-19 17:37:25 +00:00
parent aa850d32db
commit 01679b25c0
1 changed files with 10 additions and 9 deletions
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19
lib/Transforms/Scalar/LoopRotation.cpp
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@ -164,7 +164,7 @@ bool LoopRotate::rotateLoop(Loop *Lp, LPPassManager &LPM) {
// Check size of original header and reject
// loop if it is very big.
if (OrigHeader->getInstList().size() > MAX_HEADER_SIZE)
if (OrigHeader->size() > MAX_HEADER_SIZE)
return false;
// Now, this loop is suitable for rotation.
@ -208,10 +208,10 @@ bool LoopRotate::rotateLoop(Loop *Lp, LPPassManager &LPM) {
// Create new PHI node with two incoming values for NewHeader.
// One incoming value is from OrigLatch (through OrigHeader) and
// second incoming value is from original pre-header.
PHINode *NH = PHINode::Create(In->getType(), In->getName());
PHINode *NH = PHINode::Create(In->getType(), In->getName(),
NewHeader->begin());
NH->addIncoming(PN->getIncomingValueForBlock(OrigLatch), OrigHeader);
NH->addIncoming(NPV, OrigPreHeader);
NewHeader->getInstList().push_front(NH);
// "In" can be replaced by NH at various places.
LoopHeaderInfo.push_back(RenameData(In, NPV, NH));
@ -272,10 +272,10 @@ bool LoopRotate::rotateLoop(Loop *Lp, LPPassManager &LPM) {
}
}
} else {
PHINode *PN = PHINode::Create(In->getType(), In->getName());
PHINode *PN = PHINode::Create(In->getType(), In->getName(),
NewHeader->begin());
PN->addIncoming(In, OrigHeader);
PN->addIncoming(C, OrigPreHeader);
NewHeader->getInstList().push_front(PN);
NewHeaderReplacement = PN;
}
}
@ -358,10 +358,10 @@ bool LoopRotate::rotateLoop(Loop *Lp, LPPassManager &LPM) {
} else {
// Used outside Exit block. Create a new PHI node from exit block
// to receive value from ne new header ane pre header.
PHINode *PN = PHINode::Create(U->getType(), U->getName());
PHINode *PN = PHINode::Create(U->getType(), U->getName(),
Exit->begin());
PN->addIncoming(ILoopHeaderInfo.PreHeader, OrigPreHeader);
PN->addIncoming(OldPhi, OrigHeader);
Exit->getInstList().push_front(PN);
U->replaceUsesOfWith(OldPhi, PN);
}
}
@ -583,14 +583,15 @@ void LoopRotate::preserveCanonicalLoopForm(LPPassManager &LPM) {
BasicBlock::iterator I = Exit->begin(), E = Exit->end();
PHINode *PN = NULL;
for (; (PN = dyn_cast<PHINode>(I)); ++I) {
PHINode *NewPN = PHINode::Create(PN->getType(), PN->getName());
unsigned N = PN->getNumIncomingValues();
for (unsigned index = 0; index < N; ++index)
if (PN->getIncomingBlock(index) == NExit) {
PHINode *NewPN = PHINode::Create(PN->getType(), PN->getName(),
NExit->begin());
NewPN->addIncoming(PN->getIncomingValue(index), L->getLoopLatch());
PN->setIncomingValue(index, NewPN);
PN->setIncomingBlock(index, NExit);
NExit->getInstList().push_front(NewPN);
break;
}
}