diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp index b07b86eb94..904638d4f7 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp @@ -301,7 +301,8 @@ namespace llvm { static void addCustomGraphFeatures(ScheduleDAG *G, GraphWriter<ScheduleDAG*> &GW) { GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot"); - if (G->DAG.getRoot().Val) + if (G->DAG.getRoot().Val && + G->SUnitMap.find(G->DAG.getRoot().Val) != G->SUnitMap.end()) GW.emitEdge(0, -1, G->SUnitMap[G->DAG.getRoot().Val].front(), -1, ""); } }; |