Bill Wendling | f667072 | 2012-12-20 01:36:59 +0000 | [diff] [blame] | 1 | //===-- AttributeImpl.h - Attribute Internals -------------------*- C++ -*-===// |
Bill Wendling | 2c79ecb | 2012-09-26 21:07:29 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
Bill Wendling | 27107f6 | 2012-12-20 21:28:43 +0000 | [diff] [blame] | 9 | /// |
| 10 | /// \file |
| 11 | /// \brief This file defines various helper methods and classes used by |
| 12 | /// LLVMContextImpl for creating and managing attributes. |
| 13 | /// |
Bill Wendling | 2c79ecb | 2012-09-26 21:07:29 +0000 | [diff] [blame] | 14 | //===----------------------------------------------------------------------===// |
| 15 | |
| 16 | #ifndef LLVM_ATTRIBUTESIMPL_H |
| 17 | #define LLVM_ATTRIBUTESIMPL_H |
| 18 | |
| 19 | #include "llvm/ADT/FoldingSet.h" |
Chandler Carruth | a1514e2 | 2012-12-04 07:12:27 +0000 | [diff] [blame] | 20 | #include "llvm/Attributes.h" |
Bill Wendling | 2c79ecb | 2012-09-26 21:07:29 +0000 | [diff] [blame] | 21 | |
| 22 | namespace llvm { |
| 23 | |
Bill Wendling | 5f93e2b | 2012-12-19 23:55:43 +0000 | [diff] [blame] | 24 | class LLVMContext; |
| 25 | |
Bill Wendling | 27107f6 | 2012-12-20 21:28:43 +0000 | [diff] [blame] | 26 | //===----------------------------------------------------------------------===// |
| 27 | /// \class |
| 28 | /// \brief This class represents a single, uniqued attribute. That attribute |
| 29 | /// could be a single enum, a tuple, or a string. It uses a discriminated union |
| 30 | /// to distinguish them. |
Bill Wendling | f667072 | 2012-12-20 01:36:59 +0000 | [diff] [blame] | 31 | class AttributeImpl : public FoldingSetNode { |
Bill Wendling | 8e635db | 2012-10-08 21:47:17 +0000 | [diff] [blame] | 32 | uint64_t Bits; // FIXME: We will be expanding this. |
Bill Wendling | 2c79ecb | 2012-09-26 21:07:29 +0000 | [diff] [blame] | 33 | public: |
Bill Wendling | f667072 | 2012-12-20 01:36:59 +0000 | [diff] [blame] | 34 | AttributeImpl(uint64_t bits) : Bits(bits) {} |
Bill Wendling | 2c79ecb | 2012-09-26 21:07:29 +0000 | [diff] [blame] | 35 | |
Bill Wendling | 8e635db | 2012-10-08 21:47:17 +0000 | [diff] [blame] | 36 | bool hasAttribute(uint64_t A) const; |
Bill Wendling | 6765834 | 2012-10-09 07:45:08 +0000 | [diff] [blame] | 37 | |
Bill Wendling | 8e635db | 2012-10-08 21:47:17 +0000 | [diff] [blame] | 38 | bool hasAttributes() const; |
Bill Wendling | 034b94b | 2012-12-19 07:18:57 +0000 | [diff] [blame] | 39 | bool hasAttributes(const Attribute &A) const; |
Bill Wendling | 8e635db | 2012-10-08 21:47:17 +0000 | [diff] [blame] | 40 | |
| 41 | uint64_t getAlignment() const; |
| 42 | uint64_t getStackAlignment() const; |
| 43 | |
Bill Wendling | 925bcb1 | 2012-10-16 05:57:28 +0000 | [diff] [blame] | 44 | uint64_t Raw() const { return Bits; } // FIXME: Remove. |
| 45 | |
Bill Wendling | 2e879bc | 2012-10-09 09:11:20 +0000 | [diff] [blame] | 46 | static uint64_t getAttrMask(uint64_t Val); |
| 47 | |
Bill Wendling | 2c79ecb | 2012-09-26 21:07:29 +0000 | [diff] [blame] | 48 | void Profile(FoldingSetNodeID &ID) const { |
| 49 | Profile(ID, Bits); |
| 50 | } |
| 51 | static void Profile(FoldingSetNodeID &ID, uint64_t Bits) { |
| 52 | ID.AddInteger(Bits); |
| 53 | } |
| 54 | }; |
| 55 | |
Bill Wendling | 27107f6 | 2012-12-20 21:28:43 +0000 | [diff] [blame] | 56 | //===----------------------------------------------------------------------===// |
| 57 | /// \class |
| 58 | /// \brief This class represents a set of attributes. |
Bill Wendling | 18e7211 | 2012-12-19 22:42:22 +0000 | [diff] [blame] | 59 | class AttributeSetImpl : public FoldingSetNode { |
Bill Wendling | 0976e00 | 2012-11-20 05:09:20 +0000 | [diff] [blame] | 60 | // AttributesList is uniqued, these should not be publicly available. |
Bill Wendling | 18e7211 | 2012-12-19 22:42:22 +0000 | [diff] [blame] | 61 | void operator=(const AttributeSetImpl &) LLVM_DELETED_FUNCTION; |
| 62 | AttributeSetImpl(const AttributeSetImpl &) LLVM_DELETED_FUNCTION; |
Bill Wendling | 0976e00 | 2012-11-20 05:09:20 +0000 | [diff] [blame] | 63 | public: |
Bill Wendling | 5f93e2b | 2012-12-19 23:55:43 +0000 | [diff] [blame] | 64 | LLVMContext &Context; |
Bill Wendling | 0976e00 | 2012-11-20 05:09:20 +0000 | [diff] [blame] | 65 | SmallVector<AttributeWithIndex, 4> Attrs; |
| 66 | |
Bill Wendling | 5f93e2b | 2012-12-19 23:55:43 +0000 | [diff] [blame] | 67 | AttributeSetImpl(LLVMContext &C, ArrayRef<AttributeWithIndex> attrs) |
| 68 | : Context(C), Attrs(attrs.begin(), attrs.end()) {} |
Bill Wendling | 0976e00 | 2012-11-20 05:09:20 +0000 | [diff] [blame] | 69 | |
| 70 | void Profile(FoldingSetNodeID &ID) const { |
| 71 | Profile(ID, Attrs); |
| 72 | } |
| 73 | static void Profile(FoldingSetNodeID &ID, ArrayRef<AttributeWithIndex> Attrs){ |
| 74 | for (unsigned i = 0, e = Attrs.size(); i != e; ++i) { |
| 75 | ID.AddInteger(Attrs[i].Attrs.Raw()); |
| 76 | ID.AddInteger(Attrs[i].Index); |
| 77 | } |
| 78 | } |
| 79 | }; |
| 80 | |
Bill Wendling | 2c79ecb | 2012-09-26 21:07:29 +0000 | [diff] [blame] | 81 | } // end llvm namespace |
| 82 | |
| 83 | #endif |