1 //===-- AttributeImpl.h - Attribute Internals -------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief This file defines various helper methods and classes used by
12 /// LLVMContextImpl for creating and managing attributes.
14 //===----------------------------------------------------------------------===//
16 #ifndef LLVM_ATTRIBUTESIMPL_H
17 #define LLVM_ATTRIBUTESIMPL_H
19 #include "llvm/ADT/FoldingSet.h"
20 #include "llvm/IR/Attributes.h"
27 //===----------------------------------------------------------------------===//
29 /// \brief This class represents a single, uniqued attribute. That attribute
30 /// could be a single enum, a tuple, or a string.
31 class AttributeImpl : public FoldingSetNode {
33 SmallVector<Constant*, 0> Vals;
35 explicit AttributeImpl(LLVMContext &C, uint64_t data);
36 explicit AttributeImpl(LLVMContext &C, Attribute::AttrKind data);
37 AttributeImpl(LLVMContext &C, Attribute::AttrKind data,
38 ArrayRef<Constant*> values);
39 AttributeImpl(LLVMContext &C, StringRef data);
41 ArrayRef<Constant*> getValues() const {
45 bool hasAttribute(Attribute::AttrKind A) const;
47 bool hasAttributes() const;
49 uint64_t getAlignment() const;
50 uint64_t getStackAlignment() const;
52 bool operator==(Attribute::AttrKind Kind) const;
53 bool operator!=(Attribute::AttrKind Kind) const;
55 bool operator==(StringRef Kind) const;
56 bool operator!=(StringRef Kind) const;
58 uint64_t getBitMask() const; // FIXME: Remove.
60 static uint64_t getAttrMask(Attribute::AttrKind Val);
62 void Profile(FoldingSetNodeID &ID) const {
63 Profile(ID, Data, Vals);
65 static void Profile(FoldingSetNodeID &ID, Constant *Data,
66 ArrayRef<Constant*> Vals) {
68 for (ArrayRef<Constant*>::iterator I = Vals.begin(), E = Vals.end();
74 //===----------------------------------------------------------------------===//
76 /// \brief This class represents a set of attributes.
77 class AttributeSetImpl : public FoldingSetNode {
79 SmallVector<AttributeWithIndex, 4> AttrList;
81 // AttributesSet is uniqued, these should not be publicly available.
82 void operator=(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
83 AttributeSetImpl(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
85 AttributeSetImpl(LLVMContext &C, ArrayRef<AttributeWithIndex> attrs)
86 : Context(C), AttrList(attrs.begin(), attrs.end()) {}
88 LLVMContext &getContext() { return Context; }
89 ArrayRef<AttributeWithIndex> getAttributes() const { return AttrList; }
90 unsigned getNumAttributes() const { return AttrList.size(); }
92 void Profile(FoldingSetNodeID &ID) const {
93 Profile(ID, AttrList);
95 static void Profile(FoldingSetNodeID &ID,
96 ArrayRef<AttributeWithIndex> AttrList){
97 for (unsigned i = 0, e = AttrList.size(); i != e; ++i) {
98 ID.AddInteger(AttrList[i].Index);
99 ID.AddInteger(AttrList[i].Attrs.getBitMask());
104 } // end llvm namespace