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 {
34 SmallVector<Constant*, 0> Vals;
36 explicit AttributeImpl(LLVMContext &C, uint64_t data);
37 explicit AttributeImpl(LLVMContext &C, Attribute::AttrKind data);
38 AttributeImpl(LLVMContext &C, Attribute::AttrKind data,
39 ArrayRef<Constant*> values);
40 AttributeImpl(LLVMContext &C, StringRef data);
42 ArrayRef<Constant*> getValues() const { return Vals; }
44 bool hasAttribute(Attribute::AttrKind A) const;
46 bool hasAttributes() const;
48 uint64_t getAlignment() const;
49 void setAlignment(unsigned Align);
51 uint64_t getStackAlignment() const;
52 void setStackAlignment(unsigned Align);
54 bool operator==(Attribute::AttrKind Kind) const;
55 bool operator!=(Attribute::AttrKind Kind) const;
57 bool operator==(StringRef Kind) const;
58 bool operator!=(StringRef Kind) const;
60 uint64_t getBitMask() const; // FIXME: Remove.
62 static uint64_t getAttrMask(Attribute::AttrKind Val);
64 void Profile(FoldingSetNodeID &ID) const {
65 Profile(ID, Data, Vals);
67 static void Profile(FoldingSetNodeID &ID, Constant *Data,
68 ArrayRef<Constant*> Vals) {
70 for (ArrayRef<Constant*>::iterator I = Vals.begin(), E = Vals.end();
76 //===----------------------------------------------------------------------===//
78 /// \brief This class represents a set of attributes.
79 class AttributeSetImpl : public FoldingSetNode {
81 SmallVector<AttributeWithIndex, 4> AttrList;
83 // AttributesSet is uniqued, these should not be publicly available.
84 void operator=(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
85 AttributeSetImpl(const AttributeSetImpl &) LLVM_DELETED_FUNCTION;
87 AttributeSetImpl(LLVMContext &C, ArrayRef<AttributeWithIndex> attrs)
88 : Context(C), AttrList(attrs.begin(), attrs.end()) {}
90 LLVMContext &getContext() { return Context; }
91 ArrayRef<AttributeWithIndex> getAttributes() const { return AttrList; }
92 unsigned getNumAttributes() const { return AttrList.size(); }
94 void Profile(FoldingSetNodeID &ID) const {
95 Profile(ID, AttrList);
97 static void Profile(FoldingSetNodeID &ID,
98 ArrayRef<AttributeWithIndex> AttrList){
99 for (unsigned i = 0, e = AttrList.size(); i != e; ++i) {
100 ID.AddInteger(AttrList[i].Index);
101 ID.AddInteger(AttrList[i].Attrs.getBitMask());
106 } // end llvm namespace