diff options
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index 83f1e72..fa4324b 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -5103,18 +5103,23 @@ static Constant *BuildConstantFromSCEV(const SCEV *V) { case scAddExpr: { const SCEVAddExpr *SA = cast<SCEVAddExpr>(V); if (Constant *C = BuildConstantFromSCEV(SA->getOperand(0))) { - if (C->getType()->isPointerTy()) - C = ConstantExpr::getBitCast(C, Type::getInt8PtrTy(C->getContext())); + if (PointerType *PTy = dyn_cast<PointerType>(C->getType())) { + unsigned AS = PTy->getAddressSpace(); + Type *DestPtrTy = Type::getInt8PtrTy(C->getContext(), AS); + C = ConstantExpr::getBitCast(C, DestPtrTy); + } for (unsigned i = 1, e = SA->getNumOperands(); i != e; ++i) { Constant *C2 = BuildConstantFromSCEV(SA->getOperand(i)); if (!C2) return 0; // First pointer! if (!C->getType()->isPointerTy() && C2->getType()->isPointerTy()) { + unsigned AS = C2->getType()->getPointerAddressSpace(); std::swap(C, C2); + Type *DestPtrTy = Type::getInt8PtrTy(C->getContext(), AS); // The offsets have been converted to bytes. We can add bytes to an // i8* by GEP with the byte count in the first index. - C = ConstantExpr::getBitCast(C,Type::getInt8PtrTy(C->getContext())); + C = ConstantExpr::getBitCast(C, DestPtrTy); } // Don't bother trying to sum two pointers. We probably can't @@ -5122,8 +5127,8 @@ static Constant *BuildConstantFromSCEV(const SCEV *V) { if (C2->getType()->isPointerTy()) return 0; - if (C->getType()->isPointerTy()) { - if (cast<PointerType>(C->getType())->getElementType()->isStructTy()) + if (PointerType *PTy = dyn_cast<PointerType>(C->getType())) { + if (PTy->getElementType()->isStructTy()) C2 = ConstantExpr::getIntegerCast( C2, Type::getInt32Ty(C->getContext()), true); C = ConstantExpr::getGetElementPtr(C, C2); |