[llvm-commits] CVS: llvm/lib/Transforms/Scalar/LoopUnroll.cpp

[Owen Anderson]

Changes in directory llvm/lib/Transforms/Scalar:

LoopUnroll.cpp updated: 1.24 -> 1.25
---
Log message:

Fix a crash related to updating Phi nodes in the original header block.  This was
causing a crash in 175.vpr


---
Diffs of the changes:  (+2 -1)

 LoopUnroll.cpp |    3 ++-
 1 files changed, 2 insertions(+), 1 deletion(-)


Index: llvm/lib/Transforms/Scalar/LoopUnroll.cpp
diff -u llvm/lib/Transforms/Scalar/LoopUnroll.cpp:1.24 llvm/lib/Transforms/Scalar/LoopUnroll.cpp:1.25
--- llvm/lib/Transforms/Scalar/LoopUnroll.cpp:1.24	Thu Aug 24 16:28:19 2006
+++ llvm/lib/Transforms/Scalar/LoopUnroll.cpp	Fri Aug 25 17:13:55 2006
@@ -269,7 +269,8 @@
       if (isa<Instruction>(InVal))
         InVal = LastValueMap[InVal];
       (*SI)->removeIncomingValue(LatchBlock, false);
-      (*SI)->addIncoming(InVal, cast<BasicBlock>(LastValueMap[LatchBlock]));
+      if (InVal)
+        (*SI)->addIncoming(InVal, cast<BasicBlock>(LastValueMap[LatchBlock]));
     }
   }