Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.611 -> 1.612
---
Log message:
remove some bits that are not yet meant to land.
---
Diffs of the changes: (+0 -57)
InstructionCombining.cpp | 57 -----------------------------------------------
1 files changed, 57 deletions(-)
Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.611
llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.612
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.611 Tue Jan 30
16:32:46 2007
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Tue Jan 30 16:50:32 2007
@@ -1355,63 +1355,6 @@
break;
}
- case Instruction::BitCast: {
- // packed->packed
- const PackedType *PTy = dyn_cast<PackedType>(I->getOperand(0)->getType());
- if (!PTy) break;
- unsigned InVWidth = PTy->getNumElements();
- uint64_t InputDemandedElts = 0;
- unsigned Ratio;
-
- if (VWidth == InVWidth) {
- Ratio = 1;
- InputDemandedElts = DemandedElts;
- } else if (VWidth > InVWidth) {
- // If there are more elements in the result than there are in the source,
- // then an input element is live if any of the corresponding output
- // elements are live.
- Ratio = VWidth/InVWidth;
- for (unsigned OutIdx = 0; OutIdx != VWidth; ++OutIdx) {
- if (DemandedElts & (1ULL << OutIdx))
- InputDemandedElts |= 1ULL << (OutIdx/Ratio);
- }
- } else {
- // If there are more elements in the source than there are in the result,
- // then an input element is live if the corresponding output element is
- // live.
- Ratio = InVWidth/VWidth;
- for (unsigned InIdx = 0; InIdx != InVWidth; ++InIdx)
- if (DemandedElts & (1ULL << InIdx/Ratio))
- InputDemandedElts |= 1ULL << InIdx;
- }
-
- // div/rem demand all inputs, because they don't want divide by zero.
- TmpV = SimplifyDemandedVectorElts(I->getOperand(0), InputDemandedElts,
- UndefElts2, Depth+1);
- if (TmpV) {
- I->setOperand(0, TmpV);
- MadeChange = true;
- }
-
- UndefElts = UndefElts2;
- if (VWidth > InVWidth) {
- // If there are more elements in the result than there are in the source,
- // then an output element is undef if the corresponding input element is
- // undef.
- for (unsigned OutIdx = 0; OutIdx != VWidth; ++OutIdx)
- if (UndefElts2 & (1ULL << (OutIdx/Ratio)))
- UndefElts |= 1ULL << OutIdx;
- } else if (VWidth < InVWidth) {
- // If there are more elements in the source than there are in the result,
- // then a result element is undef if all of the corresponding input
- // elements are undef.
- UndefElts = ~0ULL >> (64-VWidth); // Start out all undef.
- for (unsigned InIdx = 0; InIdx != InVWidth; ++InIdx)
- if ((UndefElts2 & (1ULL << InIdx)) == 0) // Not undef?
- UndefElts &= ~(1ULL << (InIdx/Ratio)); // Clear undef bit.
- }
- break;
- }
case Instruction::And:
case Instruction::Or:
case Instruction::Xor:
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