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//===-- AttributeImpl.h - Attribute Internals -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file defines various helper methods and classes used by
/// LLVMContextImpl for creating and managing attributes.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_ATTRIBUTESIMPL_H
#define LLVM_ATTRIBUTESIMPL_H
#include "llvm/ADT/FoldingSet.h"
#include "llvm/IR/Attributes.h"
namespace llvm {
class Constant;
class LLVMContext;
//===----------------------------------------------------------------------===//
/// \class
/// \brief This class represents a single, uniqued attribute. That attribute
/// could be a single enum, a tuple, or a string.
class AttributeImpl : public FoldingSetNode {
LLVMContext &Context;
Constant *Data;
SmallVector<Constant*, 0> Vals;
public:
explicit AttributeImpl(LLVMContext &C, uint64_t data);
explicit AttributeImpl(LLVMContext &C, Attribute::AttrKind data);
AttributeImpl(LLVMContext &C, Attribute::AttrKind data,
ArrayRef<Constant*> values);
AttributeImpl(LLVMContext &C, StringRef data);
ArrayRef<Constant*> getValues() const { return Vals; }
bool hasAttribute(Attribute::AttrKind A) const;
bool hasAttributes() const;
uint64_t getAlignment() const;
void setAlignment(unsigned Align);
uint64_t getStackAlignment() const;
void setStackAlignment(unsigned Align);
bool operator==(Attribute::AttrKind Kind) const;
bool operator!=(Attribute::AttrKind Kind) const;
bool operator==(StringRef Kind) const;
bool operator!=(StringRef Kind) const;
uint64_t getBitMask() const; // FIXME: Remove.
static uint64_t getAttrMask(Attribute::AttrKind Val);
void Profile(FoldingSetNodeID &ID) const {
Profile(ID, Data, Vals);
}
static void Profile(FoldingSetNodeID &ID, Constant *Data,
ArrayRef<Constant*> Vals) {
ID.AddPointer(Data);
for (ArrayRef<Constant*>::iterator I = Vals.begin(), E = Vals.end();
I != E; ++I)
ID.AddPointer(*I);
}
};
//===----------------------------------------------------------------------===//
/// \class
/// \brief This class represents a set of attributes.
class AttributeSetImpl : public FoldingSetNode {
LLVMContext &Context;
SmallVector<AttributeWithIndex, 4> AttrList;
// AttributesSet is uniqued, these should not be publicly available.
void operator=(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
AttributeSetImpl(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
public:
AttributeSetImpl(LLVMContext &C, ArrayRef<AttributeWithIndex> attrs)
: Context(C), AttrList(attrs.begin(), attrs.end()) {}
LLVMContext &getContext() { return Context; }
ArrayRef<AttributeWithIndex> getAttributes() const { return AttrList; }
unsigned getNumAttributes() const { return AttrList.size(); }
void Profile(FoldingSetNodeID &ID) const {
Profile(ID, AttrList);
}
static void Profile(FoldingSetNodeID &ID,
ArrayRef<AttributeWithIndex> AttrList){
for (unsigned i = 0, e = AttrList.size(); i != e; ++i) {
ID.AddInteger(AttrList[i].Index);
ID.AddInteger(AttrList[i].Attrs.getBitMask());
}
}
};
} // end llvm namespace
#endif