diff options
Diffstat (limited to 'lib/Analysis/ConstantFolding.cpp')
| -rw-r--r-- | lib/Analysis/ConstantFolding.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/lib/Analysis/ConstantFolding.cpp b/lib/Analysis/ConstantFolding.cpp index b7bf044..146897a 100644 --- a/lib/Analysis/ConstantFolding.cpp +++ b/lib/Analysis/ConstantFolding.cpp @@ -916,10 +916,11 @@ Constant *llvm::ConstantFoldInstOperands(unsigned Opcode, Type *DestTy, if (TD && CE->getOpcode() == Instruction::IntToPtr) { Constant *Input = CE->getOperand(0); unsigned InWidth = Input->getType()->getScalarSizeInBits(); - if (TD->getPointerSizeInBits() < InWidth) { + unsigned AS = cast<PointerType>(CE->getType())->getAddressSpace(); + if (TD->getPointerSizeInBits(AS) < InWidth) { Constant *Mask = ConstantInt::get(CE->getContext(), APInt::getLowBitsSet(InWidth, - TD->getPointerSizeInBits())); + TD->getPointerSizeInBits(AS))); Input = ConstantExpr::getAnd(Input, Mask); } // Do a zext or trunc to get to the dest size. @@ -932,9 +933,10 @@ Constant *llvm::ConstantFoldInstOperands(unsigned Opcode, Type *DestTy, // the int size is >= the ptr size. This requires knowing the width of a // pointer, so it can't be done in ConstantExpr::getCast. if (ConstantExpr *CE = dyn_cast<ConstantExpr>(Ops[0])) - if (TD && - TD->getPointerSizeInBits() <= CE->getType()->getScalarSizeInBits() && - CE->getOpcode() == Instruction::PtrToInt) + if (TD && CE->getOpcode() == Instruction::PtrToInt && + TD->getPointerSizeInBits( + cast<PointerType>(CE->getOperand(0)->getType())->getAddressSpace()) + <= CE->getType()->getScalarSizeInBits()) return FoldBitCast(CE->getOperand(0), DestTy, *TD); return ConstantExpr::getCast(Opcode, Ops[0], DestTy); |