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

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

TailDuplication.cpp updated: 1.2 -> 1.3

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Log message:

Add paranoia checking


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Diffs of the changes:

Index: llvm/lib/Transforms/Scalar/TailDuplication.cpp
diff -u llvm/lib/Transforms/Scalar/TailDuplication.cpp:1.2 llvm/lib/Transforms/Scalar/TailDuplication.cpp:1.3
--- llvm/lib/Transforms/Scalar/TailDuplication.cpp:1.2	Sun Jun 22 15:25:27 2003
+++ llvm/lib/Transforms/Scalar/TailDuplication.cpp	Sun Jun 22 15:46:00 2003
@@ -303,7 +303,7 @@
     }
 
   // Found a value to replace the PHI node with?
-  if (ReplVal) {
+  if (ReplVal && ReplVal != PN) {
     PN->replaceAllUsesWith(ReplVal);
     BBVal = ReplVal;
     if (BBOutVal == PN) BBOutVal = ReplVal;