Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.683 -> 1.684
---
Log message:
fix a regression on vector or instructions.
---
Diffs of the changes: (+9 -9)
InstructionCombining.cpp | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.683
llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.684
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.683 Sat Mar 24
10:34:37 2007
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Sat Mar 24 18:56:43 2007
@@ -3636,9 +3636,8 @@
bool Changed = SimplifyCommutative(I);
Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);
- if (isa<UndefValue>(Op1))
- return ReplaceInstUsesWith(I, // X | undef -> -1
- ConstantInt::getAllOnesValue(I.getType()));
+ if (isa<UndefValue>(Op1)) // X | undef -> -1
+ return ReplaceInstUsesWith(I, ConstantInt::getAllOnesValue(I.getType()));
// or X, X = X
if (Op0 == Op1)
@@ -3646,12 +3645,13 @@
// See if we can simplify any instructions used by the instruction whose
sole
// purpose is to compute bits we don't care about.
- uint32_t BitWidth = cast<IntegerType>(I.getType())->getBitWidth();
- APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
- if (!isa<VectorType>(I.getType()) &&
- SimplifyDemandedBits(&I, APInt::getAllOnesValue(BitWidth),
- KnownZero, KnownOne))
- return &I;
+ if (!isa<VectorType>(I.getType())) {
+ uint32_t BitWidth = cast<IntegerType>(I.getType())->getBitWidth();
+ APInt KnownZero(BitWidth, 0), KnownOne(BitWidth, 0);
+ if (SimplifyDemandedBits(&I, APInt::getAllOnesValue(BitWidth),
+ KnownZero, KnownOne))
+ return &I;
+ }
// or X, -1 == -1
if (ConstantInt *RHS = dyn_cast<ConstantInt>(Op1)) {
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