diff options
Diffstat (limited to 'llvm/lib/Analysis/ConstantFolding.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ConstantFolding.cpp | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp index 83e654e..47d4358 100644 --- a/llvm/lib/Analysis/ConstantFolding.cpp +++ b/llvm/lib/Analysis/ConstantFolding.cpp @@ -861,20 +861,6 @@ Constant *CastGEPIndices(Type *SrcElemTy, ArrayRef<Constant *> Ops, return ConstantFoldConstant(C, DL, TLI); } -/// Strip the pointer casts, but preserve the address space information. -// TODO: This probably doesn't make sense with opaque pointers. -static Constant *StripPtrCastKeepAS(Constant *Ptr) { - assert(Ptr->getType()->isPointerTy() && "Not a pointer type"); - auto *OldPtrTy = cast<PointerType>(Ptr->getType()); - Ptr = cast<Constant>(Ptr->stripPointerCasts()); - auto *NewPtrTy = cast<PointerType>(Ptr->getType()); - - // Preserve the address space number of the pointer. - if (NewPtrTy->getAddressSpace() != OldPtrTy->getAddressSpace()) - Ptr = ConstantExpr::getPointerCast(Ptr, OldPtrTy); - return Ptr; -} - /// If we can symbolically evaluate the GEP constant expression, do so. Constant *SymbolicallyEvaluateGEP(const GEPOperator *GEP, ArrayRef<Constant *> Ops, @@ -909,7 +895,6 @@ Constant *SymbolicallyEvaluateGEP(const GEPOperator *GEP, BitWidth, DL.getIndexedOffsetInType( SrcElemTy, ArrayRef((Value *const *)Ops.data() + 1, Ops.size() - 1))); - Ptr = StripPtrCastKeepAS(Ptr); // If this is a GEP of a GEP, fold it all into a single GEP. while (auto *GEP = dyn_cast<GEPOperator>(Ptr)) { @@ -931,7 +916,6 @@ Constant *SymbolicallyEvaluateGEP(const GEPOperator *GEP, Ptr = cast<Constant>(GEP->getOperand(0)); SrcElemTy = GEP->getSourceElementType(); Offset += APInt(BitWidth, DL.getIndexedOffsetInType(SrcElemTy, NestedOps)); - Ptr = StripPtrCastKeepAS(Ptr); } // If the base value for this address is a literal integer value, fold the |