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Don't try to create PHIs of struct types. Fallout
from x86-64 calling convention work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50545 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -249,14 +249,37 @@ bool LoopRotate::rotateLoop(Loop *Lp, LPPassManager &LPM) {
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// create new PHINode for this instruction.
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// create new PHINode for this instruction.
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Instruction *NewHeaderReplacement = NULL;
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Instruction *NewHeaderReplacement = NULL;
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if (usedOutsideOriginalHeader(In)) {
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if (usedOutsideOriginalHeader(In)) {
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const StructType *STy = dyn_cast<StructType>(In->getType());
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if (STy) {
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// Can't create PHI nodes for this type. If there are any getResults
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// not defined in this block, move them back to this block. PHI
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// nodes will be created for all getResults later.
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BasicBlock::iterator InsertPoint;
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if (InvokeInst *II = dyn_cast<InvokeInst>(In)) {
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InsertPoint = II->getNormalDest()->begin();
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while (isa<PHINode>(InsertPoint))
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++InsertPoint;
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} else {
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InsertPoint = I; // call
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InsertPoint++;
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}
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for (Value::use_iterator UI = In->use_begin(), UE = In->use_end();
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UI != UE; ++UI) {
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GetResultInst *InGR = cast<GetResultInst>(UI);
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if (InGR->getParent() != OrigHeader) {
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// move InGR to immediately follow call. It will be picked
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// up, cloned and PHI'd on the next iteration.
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InGR->moveBefore(InsertPoint);
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}
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}
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} else {
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PHINode *PN = PHINode::Create(In->getType(), In->getName());
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PHINode *PN = PHINode::Create(In->getType(), In->getName());
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PN->addIncoming(In, OrigHeader);
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PN->addIncoming(In, OrigHeader);
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PN->addIncoming(C, OrigPreHeader);
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PN->addIncoming(C, OrigPreHeader);
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NewHeader->getInstList().push_front(PN);
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NewHeader->getInstList().push_front(PN);
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NewHeaderReplacement = PN;
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NewHeaderReplacement = PN;
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}
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}
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}
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// "In" can be replaced by NPH or NH at various places.
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LoopHeaderInfo.push_back(RenameData(In, C, NewHeaderReplacement));
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LoopHeaderInfo.push_back(RenameData(In, C, NewHeaderReplacement));
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}
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}
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