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
|
//===-- iCall.cpp - Implement the call & invoke instructions --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the call and invoke instructions.
//
//===----------------------------------------------------------------------===//
#include "llvm/iOther.h"
#include "llvm/iTerminators.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
//===----------------------------------------------------------------------===//
// CallInst Implementation
//===----------------------------------------------------------------------===//
CallInst::CallInst(Value *Func, const std::vector<Value*> ¶ms,
const std::string &Name, Instruction *InsertBefore)
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Call, Name, InsertBefore) {
Operands.reserve(1+params.size());
Operands.push_back(Use(Func, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert(params.size() == PL.size() ||
(MTy->isVarArg() && params.size() > PL.size()) &&
"Calling a function with bad signature");
for (unsigned i = 0; i < params.size(); i++)
Operands.push_back(Use(params[i], this));
}
CallInst::CallInst(Value *Func, const std::string &Name,
Instruction *InsertBefore)
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Call, Name, InsertBefore) {
Operands.reserve(1);
Operands.push_back(Use(Func, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert(PL.empty() && "Calling a function with bad signature");
}
CallInst::CallInst(Value *Func, Value* A, const std::string &Name,
Instruction *InsertBefore)
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Call, Name, InsertBefore) {
Operands.reserve(2);
Operands.push_back(Use(Func, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert(PL.size() == 1 || (MTy->isVarArg() && PL.empty()) &&
"Calling a function with bad signature");
Operands.push_back(Use(A, this));
}
CallInst::CallInst(const CallInst &CI)
: Instruction(CI.getType(), Instruction::Call) {
Operands.reserve(CI.Operands.size());
for (unsigned i = 0; i < CI.Operands.size(); ++i)
Operands.push_back(Use(CI.Operands[i], this));
}
const Function *CallInst::getCalledFunction() const {
if (const Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
Function *CallInst::getCalledFunction() {
if (Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
//===----------------------------------------------------------------------===//
// InvokeInst Implementation
//===----------------------------------------------------------------------===//
InvokeInst::InvokeInst(Value *Func, BasicBlock *IfNormal,
BasicBlock *IfException,
const std::vector<Value*> ¶ms,
const std::string &Name, Instruction *InsertBefore)
: TerminatorInst(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Invoke, Name, InsertBefore) {
Operands.reserve(3+params.size());
Operands.push_back(Use(Func, this));
Operands.push_back(Use((Value*)IfNormal, this));
Operands.push_back(Use((Value*)IfException, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert((params.size() == PL.size()) ||
(MTy->isVarArg() && params.size() > PL.size()) &&
"Calling a function with bad signature");
for (unsigned i = 0; i < params.size(); i++)
Operands.push_back(Use(params[i], this));
}
InvokeInst::InvokeInst(const InvokeInst &CI)
: TerminatorInst(CI.getType(), Instruction::Invoke) {
Operands.reserve(CI.Operands.size());
for (unsigned i = 0; i < CI.Operands.size(); ++i)
Operands.push_back(Use(CI.Operands[i], this));
}
const Function *InvokeInst::getCalledFunction() const {
if (const Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
Function *InvokeInst::getCalledFunction() {
if (Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
#include "llvm/Support/CallSite.h"
Function *CallSite::getCalledFunction() const {
Value *Callee = getCalledValue();
if (Function *F = dyn_cast<Function>(Callee))
return F;
if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Callee))
return cast<Function>(CPR->getValue());
return 0;
}
|
