diff options
| -rw-r--r-- | lib/VMCore/Dominators.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/VMCore/Dominators.cpp b/lib/VMCore/Dominators.cpp index 9bd51bf4d9..b3e18e8e3e 100644 --- a/lib/VMCore/Dominators.cpp +++ b/lib/VMCore/Dominators.cpp @@ -935,8 +935,9 @@ void ETForestBase::updateDFSNumbers() for (df_iterator<BasicBlock*> I = df_begin(Roots[i]), E = df_end(Roots[i]); I != E; ++I) { BasicBlock *BB = *I; - if (!getNode(BB)->hasFather()) - getNode(BB)->assignDFSNumber(dfsnum); + ETNode *ETN = getNode(BB); + if (ETN && !ETN->hasFather()) + ETN->assignDFSNumber(dfsnum); } SlowQueries = 0; DFSInfoValid = true; |