diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/DAGCombiner.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index 9f44c6a..4eccb81 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -4387,7 +4387,8 @@ SDOperand DAGCombiner::visitLOAD(SDNode *N) { // value. // TODO: Handle store large -> read small portion. // TODO: Handle TRUNCSTORE/LOADEXT - if (LD->getExtensionType() == ISD::NON_EXTLOAD) { + if (LD->getExtensionType() == ISD::NON_EXTLOAD && + !LD->isVolatile()) { if (ISD::isNON_TRUNCStore(Chain.Val)) { StoreSDNode *PrevST = cast<StoreSDNode>(Chain); if (PrevST->getBasePtr() == Ptr && |