diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Transforms/Scalar/GVN.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp index 70a02b270b..8b656dc9d4 100644 --- a/lib/Transforms/Scalar/GVN.cpp +++ b/lib/Transforms/Scalar/GVN.cpp @@ -2128,26 +2128,27 @@ bool GVN::performPRE(Function &F) { for (pred_iterator PI = pred_begin(CurrentBlock), PE = pred_end(CurrentBlock); PI != PE; ++PI) { + BasicBlock *P = *PI; // We're not interested in PRE where the block is its // own predecessor, or in blocks with predecessors // that are not reachable. - if (*PI == CurrentBlock) { + if (P == CurrentBlock) { NumWithout = 2; break; - } else if (!localAvail.count(*PI)) { + } else if (!localAvail.count(P)) { NumWithout = 2; break; } DenseMap<uint32_t, Value*>::iterator predV = - localAvail[*PI]->table.find(ValNo); - if (predV == localAvail[*PI]->table.end()) { - PREPred = *PI; + localAvail[P]->table.find(ValNo); + if (predV == localAvail[P]->table.end()) { + PREPred = P; ++NumWithout; } else if (predV->second == CurInst) { NumWithout = 2; } else { - predMap[*PI] = predV->second; + predMap[P] = predV->second; ++NumWith; } } |