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Reinstate r133435 and r133449 (reverted in r133499) now that the clang

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self-hosted build failure has been fixed (r133512).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133513 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jay Foad
2011-06-21 10:33:19 +00:00
parent 69254f67a5
commit cd35e09a4a
18 changed files with 211 additions and 156 deletions
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16
lib/VMCore/BasicBlock.cpp
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@@ -308,3 +308,19 @@ BasicBlock *BasicBlock::splitBasicBlock(iterator I, const Twine &BBName) {
return New;
}
void BasicBlock::replaceSuccessorsPhiUsesWith(BasicBlock *New) {
TerminatorInst *TI = getTerminator();
if (!TI)
// Cope with being called on a BasicBlock that doesn't have a terminator
// yet. Clang's CodeGenFunction::EmitReturnBlock() likes to do this.
return;
for (unsigned i = 0, e = TI->getNumSuccessors(); i != e; ++i) {
BasicBlock *Succ = TI->getSuccessor(i);
for (iterator II = Succ->begin(); PHINode *PN = dyn_cast<PHINode>(II);
++II) {
int i;
while ((i = PN->getBasicBlockIndex(this)) >= 0)
PN->setIncomingBlock(i, New);
}
}
}