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authorJim Laskey <jlaskey@mac.com>2006-10-17 19:33:52 +0000
committerJim Laskey <jlaskey@mac.com>2006-10-17 19:33:52 +0000
commit26f7fa7bba94eb18bf0e43586dd2b596cb58ca80 (patch)
tree6708a40e03a0bc00223f823b7a2689133101dfcb /lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
parent3f3a6f6c3b6b178602a1246e62ed1e6c5d9631de (diff)
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Make it simplier to dump DAGs while in DAGCombiner. Remove a nasty optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31009 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp')
-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
index 486f054ad0..53e7595f8a 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -61,7 +61,8 @@ namespace llvm {
static void addCustomGraphFeatures(SelectionDAG *G,
GraphWriter<SelectionDAG*> &GW) {
GW.emitSimpleNode(0, "plaintext=circle", "GraphRoot");
- GW.emitEdge(0, -1, G->getRoot().Val, -1, "");
+ if (G->getRoot().Val)
+ GW.emitEdge(0, -1, G->getRoot().Val, -1, "");
}
};
}