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

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

InstructionCombining.cpp updated: 1.714 -> 1.715
---
Log message:

Fix InstCombine/2007-03-31-InfiniteLoop.ll


---
Diffs of the changes:  (+3 -1)

 InstructionCombining.cpp |    4 +++-
 1 files changed, 3 insertions(+), 1 deletion(-)


Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.714 llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.715
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.714	Fri Mar 30 21:50:26 2007
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp	Sun Apr  1 00:36:37 2007
@@ -4083,8 +4083,10 @@
       else if (Op0 == B)                                     // A^(B^A) == B
         return ReplaceInstUsesWith(I, A);
     } else if (match(Op1I, m_And(m_Value(A), m_Value(B))) && Op1I->hasOneUse()){
-      if (A == Op0)                                        // A^(A&B) -> A^(B&A)
+      if (A == Op0) {                                      // A^(A&B) -> A^(B&A)
         Op1I->swapOperands();
+        std::swap(A, B);
+      }
       if (B == Op0) {                                      // A^(B&A) -> (B&A)^A
         I.swapOperands();     // Simplified below.
         std::swap(Op0, Op1);