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Changes to support PHINode::removeIncoming changes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4079 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1,13 +1,6 @@
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//===- SimplifyCFG.cpp - Code to perform CFG simplification ---------------===//
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//
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// SimplifyCFG - This function is used to do simplification of a CFG. For
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// example, it adjusts branches to branches to eliminate the extra hop, it
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// eliminates unreachable basic blocks, and does other "peephole" optimization
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// of the CFG. It returns true if a modification was made, and returns an
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// iterator that designates the first element remaining after the block that
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// was deleted.
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//
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// WARNING: The entry node of a function may not be simplified.
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// Peephole optimize the CFG.
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//
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//===----------------------------------------------------------------------===//
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@ -48,7 +41,7 @@ static bool PropogatePredecessorsForPHIs(BasicBlock *BB, BasicBlock *Succ) {
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// Loop over all of the PHI nodes in the successor BB
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for (BasicBlock::iterator I = Succ->begin();
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PHINode *PN = dyn_cast<PHINode>(&*I); ++I) {
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Value *OldVal = PN->removeIncomingValue(BB);
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Value *OldVal = PN->removeIncomingValue(BB, false);
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assert(OldVal && "No entry in PHI for Pred BB!");
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for (std::vector<BasicBlock*>::const_iterator PredI = BBPreds.begin(),
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