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Enable first-class aggregates support.

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Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-07-23 00:34:11 +00:00
parent 5e6ebaf4d1
commit fc74abfba5
29 changed files with 167 additions and 558 deletions
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34
lib/Transforms/Scalar/LoopRotation.cpp
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@@ -249,35 +249,11 @@ bool LoopRotate::rotateLoop(Loop *Lp, LPPassManager &LPM) {
// create new PHINode for this instruction.
Instruction *NewHeaderReplacement = NULL;
if (usedOutsideOriginalHeader(In)) {
// FIXME: remove this when we have first-class aggregates.
if (isa<StructType>(In->getType())) {
// Can't create PHI nodes for this type. If there are any getResults
// not defined in this block, move them back to this block. PHI
// nodes will be created for all getResults later.
BasicBlock::iterator InsertPoint;
if (InvokeInst *II = dyn_cast<InvokeInst>(In)) {
InsertPoint = II->getNormalDest()->getFirstNonPHI();
} else {
InsertPoint = I; // call
++InsertPoint;
}
for (Value::use_iterator UI = In->use_begin(), UE = In->use_end();
UI != UE; ++UI) {
GetResultInst *InGR = cast<GetResultInst>(UI);
if (InGR->getParent() != OrigHeader) {
// Move InGR to immediately after the call or in the normal dest of
// the invoke. It will be picked up, cloned and PHI'd on the next
// iteration.
InGR->moveBefore(InsertPoint);
}
}
} else {
PHINode *PN = PHINode::Create(In->getType(), In->getName(),
NewHeader->begin());
PN->addIncoming(In, OrigHeader);
PN->addIncoming(C, OrigPreHeader);
NewHeaderReplacement = PN;
}
PHINode *PN = PHINode::Create(In->getType(), In->getName(),
NewHeader->begin());
PN->addIncoming(In, OrigHeader);
PN->addIncoming(C, OrigPreHeader);
NewHeaderReplacement = PN;
}
LoopHeaderInfo.push_back(RenameData(In, C, NewHeaderReplacement));
}