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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
// $Id$
//***************************************************************************
// File:
// MachineInstr.cpp
//
// Purpose:
//
//
// Strategy:
//
// History:
// 7/2/01 - Vikram Adve - Created
//**************************************************************************/
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/Target/MachineRegInfo.h"
#include "llvm/Method.h"
#include "llvm/Instruction.h"
//************************ Class Implementations **************************/
// Constructor for instructions with fixed #operands (nearly all)
MachineInstr::MachineInstr(MachineOpCode _opCode,
OpCodeMask _opCodeMask)
: opCode(_opCode),
opCodeMask(_opCodeMask),
operands(TargetInstrDescriptors[_opCode].numOperands)
{
assert(TargetInstrDescriptors[_opCode].numOperands >= 0);
}
// Constructor for instructions with variable #operands
MachineInstr::MachineInstr(MachineOpCode _opCode,
unsigned numOperands,
OpCodeMask _opCodeMask)
: opCode(_opCode),
opCodeMask(_opCodeMask),
operands(numOperands)
{
}
void
MachineInstr::SetMachineOperand(unsigned int i,
MachineOperand::MachineOperandType operandType,
Value* _val, bool isdef=false)
{
assert(i < operands.size());
operands[i].Initialize(operandType, _val);
operands[i].isDef = isdef ||
TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
MachineInstr::SetMachineOperand(unsigned int i,
MachineOperand::MachineOperandType operandType,
int64_t intValue, bool isdef=false)
{
assert(i < operands.size());
operands[i].InitializeConst(operandType, intValue);
operands[i].isDef = isdef ||
TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
MachineInstr::SetMachineOperand(unsigned int i,
unsigned int regNum, bool isdef=false)
{
assert(i < operands.size());
operands[i].InitializeReg(regNum);
operands[i].isDef = isdef ||
TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
MachineInstr::dump(unsigned int indent) const
{
for (unsigned i=0; i < indent; i++)
cout << " ";
cout << *this;
}
ostream&
operator<< (ostream& os, const MachineInstr& minstr)
{
os << TargetInstrDescriptors[minstr.opCode].opCodeString;
for (unsigned i=0, N=minstr.getNumOperands(); i < N; i++)
os << "\t" << minstr.getOperand(i);
#undef DEBUG_VAL_OP_ITERATOR
#ifdef DEBUG_VAL_OP_ITERATOR
os << endl << "\tValue operands are: ";
for (MachineInstr::val_op_const_iterator vo(&minstr); ! vo.done(); ++vo)
{
const Value* val = *vo;
os << val << (vo.isDef()? "(def), " : ", ");
}
#endif
#if 1
// code for printing implict references
unsigned NumOfImpRefs = minstr.getNumImplicitRefs();
if( NumOfImpRefs > 0 ) {
os << "\tImplicit:";
for(unsigned z=0; z < NumOfImpRefs; z++) {
os << minstr.getImplicitRef(z);
cout << "\t";
}
}
#endif
os << endl;
return os;
}
static inline ostream&
OutputOperand(ostream &os, const MachineOperand &mop)
{
switch (mop.getOperandType())
{
case MachineOperand::MO_CCRegister:
case MachineOperand::MO_VirtualRegister:
return os << "(val " << mop.getVRegValue() << ")";
case MachineOperand::MO_MachineRegister:
return os << "(" << mop.getMachineRegNum() << ")";
default:
assert(0 && "Unknown operand type");
return os;
}
}
ostream&
operator<<(ostream &os, const MachineOperand &mop)
{
switch(mop.opType)
{
case MachineOperand::MO_VirtualRegister:
case MachineOperand::MO_MachineRegister:
os << "%reg";
return OutputOperand(os, mop);
case MachineOperand::MO_CCRegister:
os << "%ccreg";
return OutputOperand(os, mop);
case MachineOperand::MO_SignExtendedImmed:
return os << mop.immedVal;
case MachineOperand::MO_UnextendedImmed:
return os << mop.immedVal;
case MachineOperand::MO_PCRelativeDisp:
{
const Value* opVal = mop.getVRegValue();
bool isLabel = isa<Method>(opVal) || isa<BasicBlock>(opVal);
return os << "%disp("
<< (isLabel? "label " : "addr-of-val ")
<< opVal << ")";
}
default:
assert(0 && "Unrecognized operand type");
break;
}
return os;
}
void
PrintMachineInstructions(const Method *const method)
{
cout << "\n" << method->getReturnType()
<< " \"" << method->getName() << "\"" << endl;
for (Method::const_iterator BI = method->begin(); BI != method->end(); ++BI)
{
BasicBlock* bb = *BI;
cout << "\n"
<< (bb->hasName()? bb->getName() : "Label")
<< " (" << bb << ")" << ":"
<< endl;
MachineCodeForBasicBlock& mvec = bb->getMachineInstrVec();
for (unsigned i=0; i < mvec.size(); i++)
cout << "\t" << *mvec[i];
}
cout << endl << "End method \"" << method->getName() << "\""
<< endl << endl;
}
|
