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
|
//===- ARM64MachineFuctionInfo.h - ARM64 machine function info --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares ARM64-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
#ifndef ARM64MACHINEFUNCTIONINFO_H
#define ARM64MACHINEFUNCTIONINFO_H
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/MC/MCLinkerOptimizationHint.h"
namespace llvm {
/// ARM64FunctionInfo - This class is derived from MachineFunctionInfo and
/// contains private ARM64-specific information for each MachineFunction.
class ARM64FunctionInfo : public MachineFunctionInfo {
/// HasStackFrame - True if this function has a stack frame. Set by
/// processFunctionBeforeCalleeSavedScan().
bool HasStackFrame;
/// \brief Amount of stack frame size, not including callee-saved registers.
unsigned LocalStackSize;
/// \brief Number of TLS accesses using the special (combinable)
/// _TLS_MODULE_BASE_ symbol.
unsigned NumLocalDynamicTLSAccesses;
/// \brief FrameIndex for start of varargs area for arguments passed on the
/// stack.
int VarArgsStackIndex;
/// \brief FrameIndex for start of varargs area for arguments passed in
/// general purpose registers.
int VarArgsGPRIndex;
/// \brief Size of the varargs area for arguments passed in general purpose
/// registers.
unsigned VarArgsGPRSize;
/// \brief FrameIndex for start of varargs area for arguments passed in
/// floating-point registers.
int VarArgsFPRIndex;
/// \brief Size of the varargs area for arguments passed in floating-point
/// registers.
unsigned VarArgsFPRSize;
public:
ARM64FunctionInfo()
: HasStackFrame(false), NumLocalDynamicTLSAccesses(0),
VarArgsStackIndex(0), VarArgsGPRIndex(0), VarArgsGPRSize(0),
VarArgsFPRIndex(0), VarArgsFPRSize(0) {}
explicit ARM64FunctionInfo(MachineFunction &MF)
: HasStackFrame(false), NumLocalDynamicTLSAccesses(0),
VarArgsStackIndex(0), VarArgsGPRIndex(0), VarArgsGPRSize(0),
VarArgsFPRIndex(0), VarArgsFPRSize(0) {
(void)MF;
}
bool hasStackFrame() const { return HasStackFrame; }
void setHasStackFrame(bool s) { HasStackFrame = s; }
void setLocalStackSize(unsigned Size) { LocalStackSize = Size; }
unsigned getLocalStackSize() const { return LocalStackSize; }
void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamicTLSAccesses; }
unsigned getNumLocalDynamicTLSAccesses() const {
return NumLocalDynamicTLSAccesses;
}
int getVarArgsStackIndex() const { return VarArgsStackIndex; }
void setVarArgsStackIndex(int Index) { VarArgsStackIndex = Index; }
int getVarArgsGPRIndex() const { return VarArgsGPRIndex; }
void setVarArgsGPRIndex(int Index) { VarArgsGPRIndex = Index; }
unsigned getVarArgsGPRSize() const { return VarArgsGPRSize; }
void setVarArgsGPRSize(unsigned Size) { VarArgsGPRSize = Size; }
int getVarArgsFPRIndex() const { return VarArgsFPRIndex; }
void setVarArgsFPRIndex(int Index) { VarArgsFPRIndex = Index; }
unsigned getVarArgsFPRSize() const { return VarArgsFPRSize; }
void setVarArgsFPRSize(unsigned Size) { VarArgsFPRSize = Size; }
typedef SmallPtrSet<const MachineInstr *, 16> SetOfInstructions;
const SetOfInstructions &getLOHRelated() const { return LOHRelated; }
// Shortcuts for LOH related types.
class MILOHDirective {
MCLOHType Kind;
/// Arguments of this directive. Order matters.
SmallVector<const MachineInstr *, 3> Args;
public:
typedef SmallVectorImpl<const MachineInstr *> LOHArgs;
MILOHDirective(MCLOHType Kind, const LOHArgs &Args)
: Kind(Kind), Args(Args.begin(), Args.end()) {
assert(isValidMCLOHType(Kind) && "Invalid LOH directive type!");
}
MCLOHType getKind() const { return Kind; }
const LOHArgs &getArgs() const { return Args; }
};
typedef MILOHDirective::LOHArgs MILOHArgs;
typedef SmallVector<MILOHDirective, 32> MILOHContainer;
const MILOHContainer &getLOHContainer() const { return LOHContainerSet; }
/// Add a LOH directive of this @p Kind and this @p Args.
void addLOHDirective(MCLOHType Kind, const MILOHArgs &Args) {
LOHContainerSet.push_back(MILOHDirective(Kind, Args));
LOHRelated.insert(Args.begin(), Args.end());
}
private:
// Hold the lists of LOHs.
MILOHContainer LOHContainerSet;
SetOfInstructions LOHRelated;
};
} // End llvm namespace
#endif // ARM64MACHINEFUNCTIONINFO_H
|
