diff options
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp index c126a53611..805cc9e0f2 100644 --- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp +++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp @@ -8692,6 +8692,11 @@ bool DAGCombiner::MergeConsecutiveStores(StoreSDNode* St) { Index = STn; break; } else if (LoadSDNode *Ldn = dyn_cast<LoadSDNode>(NextInChain)) { + if (Ldn->isVolatile()) { + Index = NULL; + break; + } + // Save the load node for later. Continue the scan. AliasLoadNodes.push_back(Ldn); NextInChain = Ldn->getChain().getNode(); |