diff options
Diffstat (limited to 'include/llvm/CodeGen/SelectionDAGNodes.h')
| -rw-r--r-- | include/llvm/CodeGen/SelectionDAGNodes.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h index 051c93601d3f..5fb69ae232af 100644 --- a/include/llvm/CodeGen/SelectionDAGNodes.h +++ b/include/llvm/CodeGen/SelectionDAGNodes.h @@ -801,7 +801,8 @@ public: /// if DAG changes. static bool hasPredecessorHelper(const SDNode *N, SmallPtrSetImpl<const SDNode *> &Visited, - SmallVectorImpl<const SDNode *> &Worklist) { + SmallVectorImpl<const SDNode *> &Worklist, + unsigned int MaxSteps = 0) { if (Visited.count(N)) return true; while (!Worklist.empty()) { @@ -816,6 +817,8 @@ public: } if (Found) return true; + if (MaxSteps != 0 && Visited.size() >= MaxSteps) + return false; } return false; } |