diff options
| -rw-r--r-- | lib/Transforms/Scalar/GVNPRE.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/GVNPRE.cpp b/lib/Transforms/Scalar/GVNPRE.cpp index b34239d6a6..b93c70b040 100644 --- a/lib/Transforms/Scalar/GVNPRE.cpp +++ b/lib/Transforms/Scalar/GVNPRE.cpp @@ -158,11 +158,14 @@ Value* GVNPRE::phi_translate(ValueTable& VN, std::set<Value*, ExprLT>& MS, Value* newVal = BinaryOperator::create(BO->getOpcode(), newOp1, newOp2, BO->getName()+".gvnpre"); - add(VN, MS, newVal); - if (!find_leader(VN, set, VN[newVal])) + + if (!find_leader(VN, set, VN[newVal])) { + add(VN, MS, newVal); return newVal; - else + } else { + delete newVal; return 0; + } } } else if (PHINode* P = dyn_cast<PHINode>(V)) { if (P->getParent() == pred->getTerminator()->getSuccessor(0)) |