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cache result of operator*

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107981 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gabor Greif 2010-07-09 16:17:52 +00:00
parent 03f09a3e32
commit e80ba4f884
1 changed files with 3 additions and 2 deletions
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5
lib/Transforms/Utils/BreakCriticalEdges.cpp
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@ -106,11 +106,12 @@ bool llvm::isCriticalEdge(const TerminatorInst *TI, unsigned SuccNum,
// If AllowIdenticalEdges is true, then we allow this edge to be considered
// non-critical iff all preds come from TI's block.
while (I != E) {
if (*I != FirstPred)
const BasicBlock *P = *I;
if (P != FirstPred)
return true;
// Note: leave this as is until no one ever compiles with either gcc 4.0.1
// or Xcode 2. This seems to work around the pred_iterator assert in PR 2207
E = pred_end(*I);
E = pred_end(P);
++I;
}
return false;