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| author | Gabor Greif <ggreif@gmail.com> | 2010-07-12 10:49:54 +0000 |
|---|---|---|
| committer | Gabor Greif <ggreif@gmail.com> | 2010-07-12 10:49:54 +0000 |
| commit | d19eac5be5507f538e254f6269b894726385f253 (patch) | |
| tree | eecfb14d5a8614fb9bf27fb789c8f78de9abd9a3 /lib/Transforms/Utils/Local.cpp | |
| parent | bd9e2354797a0dce3ef4cbd618da08c18ca1a54c (diff) | |
| download | external_llvm-d19eac5be5507f538e254f6269b894726385f253.zip external_llvm-d19eac5be5507f538e254f6269b894726385f253.tar.gz external_llvm-d19eac5be5507f538e254f6269b894726385f253.tar.bz2 | |
cache dereferenced iterators
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108132 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | lib/Transforms/Utils/Local.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp index b9fcfd5..0b48a8f 100644 --- a/lib/Transforms/Utils/Local.cpp +++ b/lib/Transforms/Utils/Local.cpp @@ -432,9 +432,11 @@ static bool CanPropagatePredecessorsForPHIs(BasicBlock *BB, BasicBlock *Succ) { // Use that list to make another list of common predecessors of BB and Succ BlockSet CommonPreds; for (pred_iterator PI = pred_begin(Succ), PE = pred_end(Succ); - PI != PE; ++PI) - if (BBPreds.count(*PI)) - CommonPreds.insert(*PI); + PI != PE; ++PI) { + BasicBlock *P = *PI; + if (BBPreds.count(P)) + CommonPreds.insert(P); + } // Shortcut, if there are no common predecessors, merging is always safe if (CommonPreds.empty()) |