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

[Owen Anderson]

Changes in directory llvm/lib/Transforms/Scalar:

LoopUnroll.cpp updated: 1.21 -> 1.22
---
Log message:

Add an assertion.


---
Diffs of the changes:  (+2 -0)

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


Index: llvm/lib/Transforms/Scalar/LoopUnroll.cpp
diff -u llvm/lib/Transforms/Scalar/LoopUnroll.cpp:1.21 llvm/lib/Transforms/Scalar/LoopUnroll.cpp:1.22
--- llvm/lib/Transforms/Scalar/LoopUnroll.cpp:1.21	Wed Jul 19 00:45:14 2006
+++ llvm/lib/Transforms/Scalar/LoopUnroll.cpp	Wed Jul 19 00:48:45 2006
@@ -272,6 +272,8 @@
   // Remove LCSSA Phis from the exit block
   for (BasicBlock::iterator ExitInstr = LoopExit->begin();
        PHINode* PN = dyn_cast<PHINode>(ExitInstr); ++ExitInstr) {
+    assert(PN->getNumIncomingValues() == 1
+           && "Block should only have one pred, so Phi's must be LCSSA");
     PN->replaceAllUsesWith(PN->getOperand(0));
     PN->eraseFromParent();
   }