diff options
| -rw-r--r-- | lib/Transforms/Scalar/GVNPRE.cpp | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/lib/Transforms/Scalar/GVNPRE.cpp b/lib/Transforms/Scalar/GVNPRE.cpp index 4f327663c1..2bedd1cdea 100644 --- a/lib/Transforms/Scalar/GVNPRE.cpp +++ b/lib/Transforms/Scalar/GVNPRE.cpp @@ -420,13 +420,12 @@ bool GVNPRE::runOnFunction(Function &F) { s_ins, ExprLT()); anticIn.clear(); - std::insert_iterator<std::set<Value*, ExprLT> > antic_ins(anticIn, - anticIn.begin()); - std::set_difference(S.begin(), S.end(), - generatedTemporaries[BB].begin(), - generatedTemporaries[BB].end(), - antic_ins, - ExprLT()); + + for (std::set<Value*, ExprLT>::iterator I = S.begin(), E = S.end(); + I != E; ++I) { + if (generatedTemporaries[BB].find(*I) == generatedTemporaries[BB].end()) + anticIn.insert(*I); + } clean(VN, anticIn); |