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

[Zhou Sheng]

Changes in directory llvm/lib/Transforms/Scalar:

InstructionCombining.cpp updated: 1.651 -> 1.652
---
Log message:

Fix a bug in function ComputeMaskedBits().


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

 InstructionCombining.cpp |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)


Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.651 
llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.652
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.651   Wed Mar  7 
23:42:00 2007
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Thu Mar  8 09:15:18 2007
@@ -677,7 +677,7 @@
     const IntegerType *SrcTy = cast<IntegerType>(I->getOperand(0)->getType());
     APInt NewBits(APInt::getAllOnesValue(BitWidth).shl(SrcTy->getBitWidth()));
       
-    Mask &= SrcTy->getMask().zext(BitWidth);
+    Mask &= SrcTy->getMask().zextOrTrunc(BitWidth);
     ComputeMaskedBits(I->getOperand(0), Mask, KnownZero, KnownOne, Depth+1);
     assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?"); 
     // The top bits are known to be zero.
@@ -689,7 +689,7 @@
     const IntegerType *SrcTy = cast<IntegerType>(I->getOperand(0)->getType());
     APInt NewBits(APInt::getAllOnesValue(BitWidth).shl(SrcTy->getBitWidth()));
       
-    Mask &= SrcTy->getMask().zext(BitWidth);
+    Mask &= SrcTy->getMask().zextOrTrunc(BitWidth);
     ComputeMaskedBits(I->getOperand(0), Mask, KnownZero, KnownOne, Depth+1);
     assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?"); 
 



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