[llvm-commits] [llvm] r121838 - /llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp

[Chris Lattner]

Author: lattner
Date: Tue Dec 14 22:52:41 2010
New Revision: 121838

URL: http://llvm.org/viewvc/llvm-project?rev=121838&view=rev
Log:
make qsort predicate more conformant by returning 0 for equal values.

Modified:
    llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp

Modified: llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp?rev=121838&r1=121837&r2=121838&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp (original)
+++ llvm/trunk/lib/Transforms/Utils/SimplifyCFG.cpp Tue Dec 14 22:52:41 2010
@@ -592,7 +592,11 @@
 static int ConstantIntSortPredicate(const void *P1, const void *P2) {
   const ConstantInt *LHS = *(const ConstantInt**)P1;
   const ConstantInt *RHS = *(const ConstantInt**)P2;
-  return LHS->getValue().ult(RHS->getValue()) ? 1 : -1;
+  if (LHS->getValue().ult(RHS->getValue()))
+    return 1;
+  if (LHS->getValue() == RHS->getValue())
+    return 0;
+  return -1;
 }
 
 /// FoldValueComparisonIntoPredecessors - The specified terminator is a value