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Add a GetElementPtrInst::getIndexedType that accepts uint64_t's instead of just Value*'s. 

llvm-svn: 54157
This commit is contained in:
Matthijs Kooijman 2008-07-29 08:46:11 +00:00
parent bf83579b30
commit 0446862796
2 changed files with 27 additions and 7 deletions
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10
llvm/include/llvm/Instructions.h
View File

@ -408,9 +408,6 @@ class GetElementPtrInst : public Instruction {
/// Null is returned if the indices are invalid for the specified
/// pointer type.
///
static const Type *getIndexedType(const Type *Ptr,
Value* const *Idx, unsigned NumIdx);
template<typename InputIterator>
static const Type *getIndexedType(const Type *Ptr,
InputIterator IdxBegin,
@ -509,6 +506,13 @@ public:
typename std::iterator_traits<InputIterator>::
iterator_category());
}
static const Type *getIndexedType(const Type *Ptr,
Value* const *Idx, unsigned NumIdx);
static const Type *getIndexedType(const Type *Ptr,
uint64_t const *Idx, unsigned NumIdx);
static const Type *getIndexedType(const Type *Ptr, Value *Idx);
inline op_iterator idx_begin() { return op_begin()+1; }

24
llvm/lib/VMCore/Instructions.cpp
View File

@ -1026,12 +1026,16 @@ GetElementPtrInst::GetElementPtrInst(Value *Ptr, Value *Idx,
// getIndexedType - Returns the type of the element that would be loaded with
// a load instruction with the specified parameters.
//
// The Idxs pointer should point to a continuous piece of memory containing the
// indices, either as Value* or uint64_t.
//
// A null type is returned if the indices are invalid for the specified
// pointer type.
//
const Type* GetElementPtrInst::getIndexedType(const Type *Ptr,
Value* const *Idxs,
unsigned NumIdx) {
template <typename IndexTy>
static const Type* getIndexedTypeInternal(const Type *Ptr,
IndexTy const *Idxs,
unsigned NumIdx) {
const PointerType *PTy = dyn_cast<PointerType>(Ptr);
if (!PTy) return 0; // Type isn't a pointer type!
const Type *Agg = PTy->getElementType();
@ -1044,7 +1048,7 @@ const Type* GetElementPtrInst::getIndexedType(const Type *Ptr,
for (; CurIdx != NumIdx; ++CurIdx) {
const CompositeType *CT = dyn_cast<CompositeType>(Agg);
if (!CT || isa<PointerType>(CT)) return 0;
Value *Index = Idxs[CurIdx];
IndexTy Index = Idxs[CurIdx];
if (!CT->indexValid(Index)) return 0;
Agg = CT->getTypeAtIndex(Index);
@ -1058,6 +1062,18 @@ const Type* GetElementPtrInst::getIndexedType(const Type *Ptr,
return CurIdx == NumIdx ? Agg : 0;
}
const Type* GetElementPtrInst::getIndexedType(const Type *Ptr,
Value* const *Idxs,
unsigned NumIdx) {
return getIndexedTypeInternal(Ptr, Idxs, NumIdx);
}
const Type* GetElementPtrInst::getIndexedType(const Type *Ptr,
uint64_t const *Idxs,
unsigned NumIdx) {
return getIndexedTypeInternal(Ptr, Idxs, NumIdx);
}
const Type* GetElementPtrInst::getIndexedType(const Type *Ptr, Value *Idx) {
const PointerType *PTy = dyn_cast<PointerType>(Ptr);
if (!PTy) return 0; // Type isn't a pointer type!