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[opaque pointer type] Track explicit GEP pointee type through in-memory IR

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236510 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2015-05-05 18:03:48 +00:00
parent 4def1cbf5d
commit a67d5abd53
4 changed files with 34 additions and 16 deletions
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37
include/llvm/IR/Instructions.h
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@@ -801,6 +801,8 @@ inline Type *checkGEPType(Type *Ty) {
/// access elements of arrays and structs
///
class GetElementPtrInst : public Instruction {
Type *SourceElementType;
GetElementPtrInst(const GetElementPtrInst &GEPI);
void init(Value *Ptr, ArrayRef<Value *> IdxList, const Twine &NameStr);
@@ -823,6 +825,13 @@ public:
const Twine &NameStr = "",
Instruction *InsertBefore = nullptr) {
unsigned Values = 1 + unsigned(IdxList.size());
if (!PointeeType)
PointeeType =
cast<PointerType>(Ptr->getType()->getScalarType())->getElementType();
else
assert(
PointeeType ==
cast<PointerType>(Ptr->getType()->getScalarType())->getElementType());
return new (Values) GetElementPtrInst(PointeeType, Ptr, IdxList, Values,
NameStr, InsertBefore);
}
@@ -831,6 +840,13 @@ public:
const Twine &NameStr,
BasicBlock *InsertAtEnd) {
unsigned Values = 1 + unsigned(IdxList.size());
if (!PointeeType)
PointeeType =
cast<PointerType>(Ptr->getType()->getScalarType())->getElementType();
else
assert(
PointeeType ==
cast<PointerType>(Ptr->getType()->getScalarType())->getElementType());
return new (Values) GetElementPtrInst(PointeeType, Ptr, IdxList, Values,
NameStr, InsertAtEnd);
}
@@ -876,10 +892,9 @@ public:
return cast<SequentialType>(Instruction::getType());
}
Type *getSourceElementType() const {
return cast<SequentialType>(getPointerOperandType()->getScalarType())
->getElementType();
}
Type *getSourceElementType() const { return SourceElementType; }
void setSourceElementType(Type *Ty) { SourceElementType = Ty; }
Type *getResultElementType() const {
return cast<PointerType>(getType()->getScalarType())->getElementType();
@@ -1002,23 +1017,21 @@ GetElementPtrInst::GetElementPtrInst(Type *PointeeType, Value *Ptr,
ArrayRef<Value *> IdxList, unsigned Values,
const Twine &NameStr,
Instruction *InsertBefore)
: Instruction(PointeeType ? getGEPReturnType(PointeeType, Ptr, IdxList)
: getGEPReturnType(Ptr, IdxList),
GetElementPtr,
: Instruction(getGEPReturnType(PointeeType, Ptr, IdxList), GetElementPtr,
OperandTraits<GetElementPtrInst>::op_end(this) - Values,
Values, InsertBefore) {
Values, InsertBefore),
SourceElementType(PointeeType) {
init(Ptr, IdxList, NameStr);
assert(!PointeeType || PointeeType == getSourceElementType());
}
GetElementPtrInst::GetElementPtrInst(Type *PointeeType, Value *Ptr,
ArrayRef<Value *> IdxList, unsigned Values,
const Twine &NameStr,
BasicBlock *InsertAtEnd)
: Instruction(getGEPReturnType(Ptr, IdxList), GetElementPtr,
: Instruction(getGEPReturnType(PointeeType, Ptr, IdxList), GetElementPtr,
OperandTraits<GetElementPtrInst>::op_end(this) - Values,
Values, InsertAtEnd) {
Values, InsertAtEnd),
SourceElementType(PointeeType) {
init(Ptr, IdxList, NameStr);
assert(!PointeeType || PointeeType == getSourceElementType());
}