diff options
| -rw-r--r-- | lib/Transforms/Scalar/GVN.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp index 42fbc78671..b258fcc08c 100644 --- a/lib/Transforms/Scalar/GVN.cpp +++ b/lib/Transforms/Scalar/GVN.cpp @@ -1131,9 +1131,11 @@ bool GVN::runOnFunction(Function& F) { } if (EnablePRE) { - bool PREChanged = false; - while ((PREChanged = performPRE(F))) + bool PREChanged = true; + while (PREChanged) { + PREChanged = performPRE(F); changed |= PREChanged; + } } return changed; @@ -1256,7 +1258,7 @@ bool GVN::performPRE(Function& F) { unsigned succNum = 0; for (unsigned i = 0, e = PREPred->getTerminator()->getNumSuccessors(); i != e; ++i) - if (PREPred->getTerminator()->getSuccessor(i) == PREPred) { + if (PREPred->getTerminator()->getSuccessor(i) == CurrentBlock) { succNum = i; break; } |