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Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989

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r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2008-04-25 16:53:59 +00:00
parent 419ace9bda
commit 280a6e607d
28 changed files with 61 additions and 338 deletions
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7
lib/Transforms/Utils/BasicBlockUtils.cpp
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@ -161,7 +161,6 @@ BasicBlock *llvm::SplitBlock(BasicBlock *Old, Instruction *SplitPt, Pass *P) {
while (isa<PHINode>(SplitIt))
++SplitIt;
BasicBlock *New = Old->splitBasicBlock(SplitIt, Old->getName()+".split");
New->setUnwindDest(Old->getUnwindDest());
// The new block lives in whichever loop the old one did.
if (Loop *L = LI.getLoopFor(Old))
@ -210,12 +209,8 @@ BasicBlock *llvm::SplitBlockPredecessors(BasicBlock *BB,
BranchInst *BI = BranchInst::Create(BB, NewBB);
// Move the edges from Preds to point to NewBB instead of BB.
for (unsigned i = 0; i != NumPreds; ++i) {
for (unsigned i = 0; i != NumPreds; ++i)
Preds[i]->getTerminator()->replaceUsesOfWith(BB, NewBB);
if (Preds[i]->getUnwindDest() == BB)
Preds[i]->setUnwindDest(NewBB);
}
// Update dominator tree and dominator frontier if available.
DominatorTree *DT = P ? P->getAnalysisToUpdate<DominatorTree>() : 0;