[llvm-commits] CVS: llvm/lib/VMCore/Dominators.cpp

[Nick Lewycky]

Changes in directory llvm/lib/VMCore:

Dominators.cpp updated: 1.87 -> 1.88
---
Log message:

Don't crash when encountering a BasicBlock that hasn't been registered yet.


---
Diffs of the changes:  (+3 -2)

 Dominators.cpp |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)


Index: llvm/lib/VMCore/Dominators.cpp
diff -u llvm/lib/VMCore/Dominators.cpp:1.87 llvm/lib/VMCore/Dominators.cpp:1.88
--- llvm/lib/VMCore/Dominators.cpp:1.87	Sat Apr  7 13:23:27 2007
+++ llvm/lib/VMCore/Dominators.cpp	Sat Apr  7 20:02:12 2007
@@ -935,8 +935,9 @@
     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;