1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
//===-- Bitcode/Writer/ValueEnumerator.h - Number values --------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class gives values and types Unique ID's.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_BITCODE_WRITER_VALUEENUMERATOR_H
#define LLVM_LIB_BITCODE_WRITER_VALUEENUMERATOR_H
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/UniqueVector.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/UseListOrder.h"
#include <vector>
namespace llvm {
class Type;
class Value;
class Instruction;
class BasicBlock;
class Comdat;
class Function;
class Module;
class MDNode;
class NamedMDNode;
class AttributeSet;
class ValueSymbolTable;
class MDSymbolTable;
class raw_ostream;
class ValueEnumerator {
public:
typedef std::vector<Type*> TypeList;
// For each value, we remember its Value* and occurrence frequency.
typedef std::vector<std::pair<const Value*, unsigned> > ValueList;
UseListOrderStack UseListOrders;
private:
typedef DenseMap<Type*, unsigned> TypeMapType;
TypeMapType TypeMap;
TypeList Types;
typedef DenseMap<const Value*, unsigned> ValueMapType;
ValueMapType ValueMap;
ValueList Values;
typedef UniqueVector<const Comdat *> ComdatSetType;
ComdatSetType Comdats;
std::vector<const Value *> MDValues;
SmallVector<const MDNode *, 8> FunctionLocalMDs;
ValueMapType MDValueMap;
typedef DenseMap<AttributeSet, unsigned> AttributeGroupMapType;
AttributeGroupMapType AttributeGroupMap;
std::vector<AttributeSet> AttributeGroups;
typedef DenseMap<AttributeSet, unsigned> AttributeMapType;
AttributeMapType AttributeMap;
std::vector<AttributeSet> Attribute;
/// GlobalBasicBlockIDs - This map memoizes the basic block ID's referenced by
/// the "getGlobalBasicBlockID" method.
mutable DenseMap<const BasicBlock*, unsigned> GlobalBasicBlockIDs;
typedef DenseMap<const Instruction*, unsigned> InstructionMapType;
InstructionMapType InstructionMap;
unsigned InstructionCount;
/// BasicBlocks - This contains all the basic blocks for the currently
/// incorporated function. Their reverse mapping is stored in ValueMap.
std::vector<const BasicBlock*> BasicBlocks;
/// When a function is incorporated, this is the size of the Values list
/// before incorporation.
unsigned NumModuleValues;
/// When a function is incorporated, this is the size of the MDValues list
/// before incorporation.
unsigned NumModuleMDValues;
unsigned FirstFuncConstantID;
unsigned FirstInstID;
ValueEnumerator(const ValueEnumerator &) LLVM_DELETED_FUNCTION;
void operator=(const ValueEnumerator &) LLVM_DELETED_FUNCTION;
public:
ValueEnumerator(const Module &M);
void dump() const;
void print(raw_ostream &OS, const ValueMapType &Map, const char *Name) const;
unsigned getValueID(const Value *V) const;
unsigned getTypeID(Type *T) const {
TypeMapType::const_iterator I = TypeMap.find(T);
assert(I != TypeMap.end() && "Type not in ValueEnumerator!");
return I->second-1;
}
unsigned getInstructionID(const Instruction *I) const;
void setInstructionID(const Instruction *I);
unsigned getAttributeID(AttributeSet PAL) const {
if (PAL.isEmpty()) return 0; // Null maps to zero.
AttributeMapType::const_iterator I = AttributeMap.find(PAL);
assert(I != AttributeMap.end() && "Attribute not in ValueEnumerator!");
return I->second;
}
unsigned getAttributeGroupID(AttributeSet PAL) const {
if (PAL.isEmpty()) return 0; // Null maps to zero.
AttributeGroupMapType::const_iterator I = AttributeGroupMap.find(PAL);
assert(I != AttributeGroupMap.end() && "Attribute not in ValueEnumerator!");
return I->second;
}
/// getFunctionConstantRange - Return the range of values that corresponds to
/// function-local constants.
void getFunctionConstantRange(unsigned &Start, unsigned &End) const {
Start = FirstFuncConstantID;
End = FirstInstID;
}
const ValueList &getValues() const { return Values; }
const std::vector<const Value *> &getMDValues() const { return MDValues; }
const SmallVectorImpl<const MDNode *> &getFunctionLocalMDValues() const {
return FunctionLocalMDs;
}
const TypeList &getTypes() const { return Types; }
const std::vector<const BasicBlock*> &getBasicBlocks() const {
return BasicBlocks;
}
const std::vector<AttributeSet> &getAttributes() const {
return Attribute;
}
const std::vector<AttributeSet> &getAttributeGroups() const {
return AttributeGroups;
}
const ComdatSetType &getComdats() const { return Comdats; }
unsigned getComdatID(const Comdat *C) const;
/// getGlobalBasicBlockID - This returns the function-specific ID for the
/// specified basic block. This is relatively expensive information, so it
/// should only be used by rare constructs such as address-of-label.
unsigned getGlobalBasicBlockID(const BasicBlock *BB) const;
/// incorporateFunction/purgeFunction - If you'd like to deal with a function,
/// use these two methods to get its data into the ValueEnumerator!
///
void incorporateFunction(const Function &F);
void purgeFunction();
private:
void OptimizeConstants(unsigned CstStart, unsigned CstEnd);
void EnumerateMDNodeOperands(const MDNode *N);
void EnumerateMetadata(const Value *MD);
void EnumerateFunctionLocalMetadata(const MDNode *N);
void EnumerateNamedMDNode(const NamedMDNode *NMD);
void EnumerateValue(const Value *V);
void EnumerateType(Type *T);
void EnumerateOperandType(const Value *V);
void EnumerateAttributes(AttributeSet PAL);
void EnumerateValueSymbolTable(const ValueSymbolTable &ST);
void EnumerateNamedMetadata(const Module &M);
};
} // End llvm namespace
#endif
|
