diff options
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/BasicAliasAnalysis.cpp | 8 | ||||
| -rw-r--r-- | lib/Analysis/ConstantFolding.cpp | 6 | ||||
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 4 | ||||
| -rw-r--r-- | lib/Analysis/ValueTracking.cpp | 22 |
4 files changed, 18 insertions, 22 deletions
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp index 74bee94..3ab18fd 100644 --- a/lib/Analysis/BasicAliasAnalysis.cpp +++ b/lib/Analysis/BasicAliasAnalysis.cpp @@ -206,14 +206,14 @@ static Value *GetLinearExpression(Value *V, APInt &Scale, APInt &Offset, Value *CastOp = cast<CastInst>(V)->getOperand(0); unsigned OldWidth = Scale.getBitWidth(); unsigned SmallWidth = CastOp->getType()->getPrimitiveSizeInBits(); - Scale.trunc(SmallWidth); - Offset.trunc(SmallWidth); + Scale = Scale.trunc(SmallWidth); + Offset = Offset.trunc(SmallWidth); Extension = isa<SExtInst>(V) ? EK_SignExt : EK_ZeroExt; Value *Result = GetLinearExpression(CastOp, Scale, Offset, Extension, TD, Depth+1); - Scale.zext(OldWidth); - Offset.zext(OldWidth); + Scale = Scale.zext(OldWidth); + Offset = Offset.zext(OldWidth); return Result; } diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp index 70ee9dd..68a55b6 100644 --- a/lib/Analysis/ConstantFolding.cpp +++ b/lib/Analysis/ConstantFolding.cpp @@ -610,10 +610,8 @@ static Constant *SymbolicallyEvaluateGEP(Constant *const *Ops, unsigned NumOps, APInt BasePtr(BitWidth, 0); if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Ptr)) if (CE->getOpcode() == Instruction::IntToPtr) - if (ConstantInt *Base = dyn_cast<ConstantInt>(CE->getOperand(0))) { - BasePtr = Base->getValue(); - BasePtr.zextOrTrunc(BitWidth); - } + if (ConstantInt *Base = dyn_cast<ConstantInt>(CE->getOperand(0))) + BasePtr = Base->getValue().zextOrTrunc(BitWidth); if (Ptr->isNullValue() || BasePtr != 0) { Constant *C = ConstantInt::get(Ptr->getContext(), Offset+BasePtr); return ConstantExpr::getIntToPtr(C, ResultTy); diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index 7e50d3d..b0c1c75 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -3367,8 +3367,8 @@ const SCEV *ScalarEvolution::createSCEV(Value *V) { // If C is a single bit, it may be in the sign-bit position // before the zero-extend. In this case, represent the xor // using an add, which is equivalent, and re-apply the zext. - APInt Trunc = APInt(CI->getValue()).trunc(Z0TySize); - if (APInt(Trunc).zext(getTypeSizeInBits(UTy)) == CI->getValue() && + APInt Trunc = CI->getValue().trunc(Z0TySize); + if (Trunc.zext(getTypeSizeInBits(UTy)) == CI->getValue() && Trunc.isSignBit()) return getZeroExtendExpr(getAddExpr(Z0, getConstant(Trunc)), UTy); diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp index 7ab4d2b..a612f13 100644 --- a/lib/Analysis/ValueTracking.cpp +++ b/lib/Analysis/ValueTracking.cpp @@ -255,14 +255,13 @@ void llvm::ComputeMaskedBits(Value *V, const APInt &Mask, else SrcBitWidth = SrcTy->getScalarSizeInBits(); - APInt MaskIn(Mask); - MaskIn.zextOrTrunc(SrcBitWidth); - KnownZero.zextOrTrunc(SrcBitWidth); - KnownOne.zextOrTrunc(SrcBitWidth); + APInt MaskIn = Mask.zextOrTrunc(SrcBitWidth); + KnownZero = KnownZero.zextOrTrunc(SrcBitWidth); + KnownOne = KnownOne.zextOrTrunc(SrcBitWidth); ComputeMaskedBits(I->getOperand(0), MaskIn, KnownZero, KnownOne, TD, Depth+1); - KnownZero.zextOrTrunc(BitWidth); - KnownOne.zextOrTrunc(BitWidth); + KnownZero = KnownZero.zextOrTrunc(BitWidth); + KnownOne = KnownOne.zextOrTrunc(BitWidth); // Any top bits are known to be zero. if (BitWidth > SrcBitWidth) KnownZero |= APInt::getHighBitsSet(BitWidth, BitWidth - SrcBitWidth); @@ -284,15 +283,14 @@ void llvm::ComputeMaskedBits(Value *V, const APInt &Mask, // Compute the bits in the result that are not present in the input. unsigned SrcBitWidth = I->getOperand(0)->getType()->getScalarSizeInBits(); - APInt MaskIn(Mask); - MaskIn.trunc(SrcBitWidth); - KnownZero.trunc(SrcBitWidth); - KnownOne.trunc(SrcBitWidth); + APInt MaskIn = Mask.trunc(SrcBitWidth); + KnownZero = KnownZero.trunc(SrcBitWidth); + KnownOne = KnownOne.trunc(SrcBitWidth); ComputeMaskedBits(I->getOperand(0), MaskIn, KnownZero, KnownOne, TD, Depth+1); assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?"); - KnownZero.zext(BitWidth); - KnownOne.zext(BitWidth); + KnownZero = KnownZero.zext(BitWidth); + KnownOne = KnownOne.zext(BitWidth); // If the sign bit of the input is known set or clear, then we know the // top bits of the result. |