/// If array indices are not pointer-sized integers, explicitly cast them so
/// that they aren't implicitly casted by the getelementptr.
-static Constant *CastGEPIndices(ArrayRef<Constant *> Ops, Type *ResultTy,
- const DataLayout &DL,
+static Constant *CastGEPIndices(Type *SrcTy, ArrayRef<Constant *> Ops,
+ Type *ResultTy, const DataLayout &DL,
const TargetLibraryInfo *TLI) {
Type *IntPtrTy = DL.getIntPtrType(ResultTy);
for (unsigned i = 1, e = Ops.size(); i != e; ++i) {
if ((i == 1 ||
!isa<StructType>(GetElementPtrInst::getIndexedType(
- Ops[0]->getType(),
- Ops.slice(1, i - 1)))) &&
+ cast<PointerType>(Ops[0]->getType()->getScalarType())
+ ->getElementType(),
+ Ops.slice(1, i - 1)))) &&
Ops[i]->getType() != IntPtrTy) {
Any = true;
NewIdxs.push_back(ConstantExpr::getCast(CastInst::getCastOpcode(Ops[i],
if (!Any)
return nullptr;
- Constant *C = ConstantExpr::getGetElementPtr(Ops[0], NewIdxs);
+ Constant *C = ConstantExpr::getGetElementPtr(SrcTy, Ops[0], NewIdxs);
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
if (Constant *Folded = ConstantFoldConstantExpression(CE, DL, TLI))
C = Folded;
}
/// If we can symbolically evaluate the GEP constant expression, do so.
-static Constant *SymbolicallyEvaluateGEP(ArrayRef<Constant *> Ops,
+static Constant *SymbolicallyEvaluateGEP(Type *SrcTy, ArrayRef<Constant *> Ops,
Type *ResultTy, const DataLayout &DL,
const TargetLibraryInfo *TLI) {
Constant *Ptr = Ops[0];
return nullptr;
// Create a GEP.
- Constant *C = ConstantExpr::getGetElementPtr(Ptr, NewIdxs);
+ Constant *C = ConstantExpr::getGetElementPtr(SrcTy, Ptr, NewIdxs);
assert(C->getType()->getPointerElementType() == Ty &&
"Computed GetElementPtr has unexpected type!");
return ConstantExpr::getInsertElement(Ops[0], Ops[1], Ops[2]);
case Instruction::ShuffleVector:
return ConstantExpr::getShuffleVector(Ops[0], Ops[1], Ops[2]);
- case Instruction::GetElementPtr:
- if (Constant *C = CastGEPIndices(Ops, DestTy, DL, TLI))
+ case Instruction::GetElementPtr: {
+ Type *SrcTy = nullptr;
+ if (Constant *C = CastGEPIndices(SrcTy, Ops, DestTy, DL, TLI))
return C;
- if (Constant *C = SymbolicallyEvaluateGEP(Ops, DestTy, DL, TLI))
+ if (Constant *C = SymbolicallyEvaluateGEP(SrcTy, Ops, DestTy, DL, TLI))
return C;
- return ConstantExpr::getGetElementPtr(Ops[0], Ops.slice(1));
+ return ConstantExpr::getGetElementPtr(SrcTy, Ops[0], Ops.slice(1));
+ }
}
}