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Merged from mainline.

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llvm-svn: 15723
This commit is contained in:
John Criswell 2004-08-13 18:52:00 +00:00
parent b6a9b36e21
commit 32e813e486
2 changed files with 17 additions and 3 deletions
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15
llvm/lib/Transforms/Utils/CodeExtractor.cpp
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@ -622,7 +622,7 @@ ExtractCodeRegion(const std::vector<BasicBlock*> &code) {
Function *oldFunction = header->getParent();
// This takes place of the original loop
BasicBlock *codeReplacer = new BasicBlock("codeRepl", oldFunction);
BasicBlock *codeReplacer = new BasicBlock("codeRepl", oldFunction, header);
// The new function needs a root node because other nodes can branch to the
// head of the region, but the entry node of a function cannot have preds.
@ -657,10 +657,19 @@ ExtractCodeRegion(const std::vector<BasicBlock*> &code) {
succ_end(codeReplacer));
for (unsigned i = 0, e = Succs.size(); i != e; ++i)
for (BasicBlock::iterator I = Succs[i]->begin();
PHINode *PN = dyn_cast<PHINode>(I); ++I)
PHINode *PN = dyn_cast<PHINode>(I); ++I) {
std::set<BasicBlock*> ProcessedPreds;
for (unsigned i = 0, e = PN->getNumIncomingValues(); i != e; ++i)
if (BlocksToExtract.count(PN->getIncomingBlock(i)))
PN->setIncomingBlock(i, codeReplacer);
if (ProcessedPreds.insert(PN->getIncomingBlock(i)).second)
PN->setIncomingBlock(i, codeReplacer);
else {
// There were multiple entries in the PHI for this block, now there
// is only one, so remove the duplicated entries.
PN->removeIncomingValue(i, false);
--i; --e;
}
}
//std::cerr << "NEW FUNCTION: " << *newFunction;
// verifyFunction(*newFunction);

5
llvm/lib/Transforms/Utils/ValueMapper.cpp
View File

@ -81,6 +81,11 @@ Value *llvm::MapValue(const Value *V, std::map<const Value*, Value*> &VM) {
for (unsigned i = 1, e = CE->getNumOperands(); i != e; ++i)
Idx.push_back(cast<Constant>(MapValue(CE->getOperand(i), VM)));
return VMSlot = ConstantExpr::getGetElementPtr(MV, Idx);
} else if (CE->getOpcode() == Instruction::Select) {
Constant *MV1 = cast<Constant>(MapValue(CE->getOperand(0), VM));
Constant *MV2 = cast<Constant>(MapValue(CE->getOperand(1), VM));
Constant *MV3 = cast<Constant>(MapValue(CE->getOperand(2), VM));
return VMSlot = ConstantExpr::getSelect(MV1, MV2, MV3);
} else {
assert(CE->getNumOperands() == 2 && "Must be binary operator?");
Constant *MV1 = cast<Constant>(MapValue(CE->getOperand(0), VM));