| //===-- 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/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. It uses a discriminated union |
| /// to distinguish them. |
| class AttributeImpl : public FoldingSetNode { |
| Constant *Data; |
| public: |
| AttributeImpl(LLVMContext &C, uint64_t data); |
| |
| bool contains(Attribute::AttrKind Kind) const; |
| bool contains(StringRef Kind) const; |
| |
| bool hasAttribute(uint64_t A) const; |
| |
| bool hasAttributes() const; |
| bool hasAttributes(const Attribute &A) const; |
| |
| uint64_t getAlignment() const; |
| uint64_t getStackAlignment() const; |
| |
| bool operator==(Attribute::AttrKind Kind) const { |
| return contains(Kind); |
| } |
| bool operator!=(Attribute::AttrKind Kind) const { |
| return !contains(Kind); |
| } |
| |
| bool operator==(StringRef Kind) const { |
| return contains(Kind); |
| } |
| bool operator!=(StringRef Kind) const { |
| return !contains(Kind); |
| } |
| |
| uint64_t getBitMask() const; // FIXME: Remove. |
| |
| static uint64_t getAttrMask(uint64_t Val); |
| |
| void Profile(FoldingSetNodeID &ID) const { |
| Profile(ID, Data); |
| } |
| static void Profile(FoldingSetNodeID &ID, Constant *Data) { |
| ID.AddPointer(Data); |
| } |
| }; |
| |
| //===----------------------------------------------------------------------===// |
| /// \class |
| /// \brief This class represents a set of attributes. |
| class AttributeSetImpl : public FoldingSetNode { |
| // AttributesList is uniqued, these should not be publicly available. |
| void operator=(const AttributeSetImpl &) LLVM_DELETED_FUNCTION; |
| AttributeSetImpl(const AttributeSetImpl &) LLVM_DELETED_FUNCTION; |
| public: |
| LLVMContext &Context; |
| SmallVector<AttributeWithIndex, 4> Attrs; |
| |
| AttributeSetImpl(LLVMContext &C, ArrayRef<AttributeWithIndex> attrs) |
| : Context(C), Attrs(attrs.begin(), attrs.end()) {} |
| |
| void Profile(FoldingSetNodeID &ID) const { |
| Profile(ID, Attrs); |
| } |
| static void Profile(FoldingSetNodeID &ID, ArrayRef<AttributeWithIndex> Attrs){ |
| for (unsigned i = 0, e = Attrs.size(); i != e; ++i) { |
| ID.AddInteger(Attrs[i].Attrs.getBitMask()); |
| ID.AddInteger(Attrs[i].Index); |
| } |
| } |
| }; |
| |
| } // end llvm namespace |
| |
| #endif |