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
|
//===-- llvm/Instruction.h - Instruction class definition --------*- C++ -*--=//
//
// This file contains the declaration of the Instruction class, which is the
// base class for all of the VM instructions.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_INSTRUCTION_H
#define LLVM_INSTRUCTION_H
#include "llvm/User.h"
class Type;
class BasicBlock;
class Method;
class Instruction : public User {
BasicBlock *Parent;
unsigned iType; // InstructionType
friend class ValueHolder<Instruction,BasicBlock>;
inline void setParent(BasicBlock *P) { Parent = P; }
public:
Instruction(const Type *Ty, unsigned iType, const string &Name = "");
virtual ~Instruction(); // Virtual dtor == good.
// Specialize setName to handle symbol table majik...
virtual void setName(const string &name);
// clone() - Create a copy of 'this' instruction that is identical in all ways
// except the following:
// * The instruction has no parent
// * The instruction has no name
//
virtual Instruction *clone() const = 0;
// Accessor methods...
//
inline const BasicBlock *getParent() const { return Parent; }
inline BasicBlock *getParent() { return Parent; }
bool hasSideEffects() const { return false; } // Memory & Call insts = true
// ---------------------------------------------------------------------------
// Subclass classification... getInstType() returns a member of
// one of the enums that is coming soon (down below)...
//
virtual const char *getOpcodeName() const = 0;
unsigned getOpcode() const { return iType; }
// getInstType is deprecated, use getOpcode() instead.
unsigned getInstType() const { return iType; }
inline bool isTerminator() const { // Instance of TerminatorInst?
return iType >= FirstTermOp && iType < NumTermOps;
}
inline bool isDefinition() const { return !isTerminator(); }
inline bool isUnaryOp() const {
return iType >= FirstUnaryOp && iType < NumUnaryOps;
}
inline bool isBinaryOp() const {
return iType >= FirstBinaryOp && iType < NumBinaryOps;
}
// isPHINode() - This is used frequently enough to allow it to exist
inline bool isPHINode() const { return iType == PHINode; }
//----------------------------------------------------------------------
// Exported enumerations...
//
enum TermOps { // These terminate basic blocks
FirstTermOp = 1,
Ret = 1, Br, Switch,
NumTermOps // Must remain at end of enum
};
enum UnaryOps {
FirstUnaryOp = NumTermOps,
Neg = NumTermOps, Not,
// Type conversions...
ToBoolTy ,
ToUByteTy , ToSByteTy, ToUShortTy, ToShortTy,
ToUInt , ToInt, ToULongTy , ToLongTy,
ToFloatTy , ToDoubleTy, ToArrayTy , ToPointerTy,
NumUnaryOps // Must remain at end of enum
};
enum BinaryOps {
// Standard binary operators...
FirstBinaryOp = NumUnaryOps,
Add = NumUnaryOps, Sub, Mul, Div, Rem,
// Logical operators...
And, Or, Xor,
// Binary comparison operators...
SetEQ, SetNE, SetLE, SetGE, SetLT, SetGT,
NumBinaryOps
};
enum MemoryOps {
FirstMemoryOp = NumBinaryOps,
Malloc = NumBinaryOps, Free, // Heap management instructions
Alloca, // Stack management instruction
Load, Store, // Memory manipulation instructions.
GetField, PutField, // Structure manipulation instructions
NumMemoryOps
};
enum OtherOps {
FirstOtherOp = NumMemoryOps,
PHINode = NumMemoryOps, // PHI node instruction
Call, // Call a function
Shl, Shr, // Shift operations...
NumOps, // Must be the last 'op' defined.
UserOp1, UserOp2 // May be used internally to a pass...
};
};
#endif
|
