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
|
//===-- AMDGPUInstrInfo.h - AMDGPU Instruction Information ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the definition of a TargetInstrInfo class that is common
// to all AMD GPUs.
//
//===----------------------------------------------------------------------===//
#ifndef AMDGPUINSTRUCTIONINFO_H_
#define AMDGPUINSTRUCTIONINFO_H_
#include "AMDGPURegisterInfo.h"
#include "AMDGPUInstrInfo.h"
#include "llvm/Target/TargetInstrInfo.h"
#include <map>
#define GET_INSTRINFO_HEADER
#define GET_INSTRINFO_ENUM
#include "AMDGPUGenInstrInfo.inc"
#define MO_FLAG_CLAMP (1 << 0)
#define MO_FLAG_NEG (1 << 1)
#define MO_FLAG_ABS (1 << 2)
#define MO_FLAG_MASK (1 << 3)
#define MO_FLAG_PUSH (1 << 4)
#define OPCODE_IS_ZERO_INT 0x00000045
#define OPCODE_IS_NOT_ZERO_INT 0x00000042
#define OPCODE_IS_ZERO 0x00000020
#define OPCODE_IS_NOT_ZERO 0x00000023
namespace llvm {
class AMDGPUTargetMachine;
class MachineFunction;
class MachineInstr;
class MachineInstrBuilder;
class AMDGPUInstrInfo : public AMDGPUGenInstrInfo {
private:
const AMDGPURegisterInfo RI;
TargetMachine &TM;
bool getNextBranchInstr(MachineBasicBlock::iterator &iter,
MachineBasicBlock &MBB) const;
public:
explicit AMDGPUInstrInfo(TargetMachine &tm);
virtual const AMDGPURegisterInfo &getRegisterInfo() const = 0;
bool isCoalescableExtInstr(const MachineInstr &MI, unsigned &SrcReg,
unsigned &DstReg, unsigned &SubIdx) const;
unsigned isLoadFromStackSlot(const MachineInstr *MI, int &FrameIndex) const;
unsigned isLoadFromStackSlotPostFE(const MachineInstr *MI,
int &FrameIndex) const;
bool hasLoadFromStackSlot(const MachineInstr *MI,
const MachineMemOperand *&MMO,
int &FrameIndex) const;
unsigned isStoreFromStackSlot(const MachineInstr *MI, int &FrameIndex) const;
unsigned isStoreFromStackSlotPostFE(const MachineInstr *MI,
int &FrameIndex) const;
bool hasStoreFromStackSlot(const MachineInstr *MI,
const MachineMemOperand *&MMO,
int &FrameIndex) const;
MachineInstr *
convertToThreeAddress(MachineFunction::iterator &MFI,
MachineBasicBlock::iterator &MBBI,
LiveVariables *LV) const;
virtual void copyPhysReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI, DebugLoc DL,
unsigned DestReg, unsigned SrcReg,
bool KillSrc) const = 0;
void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned SrcReg, bool isKill, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI,
unsigned DestReg, int FrameIndex,
const TargetRegisterClass *RC,
const TargetRegisterInfo *TRI) const;
protected:
MachineInstr *foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops,
int FrameIndex) const;
MachineInstr *foldMemoryOperandImpl(MachineFunction &MF,
MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops,
MachineInstr *LoadMI) const;
public:
bool canFoldMemoryOperand(const MachineInstr *MI,
const SmallVectorImpl<unsigned> &Ops) const;
bool unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
unsigned Reg, bool UnfoldLoad, bool UnfoldStore,
SmallVectorImpl<MachineInstr *> &NewMIs) const;
bool unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
SmallVectorImpl<SDNode *> &NewNodes) const;
unsigned getOpcodeAfterMemoryUnfold(unsigned Opc,
bool UnfoldLoad, bool UnfoldStore,
unsigned *LoadRegIndex = 0) const;
bool shouldScheduleLoadsNear(SDNode *Load1, SDNode *Load2,
int64_t Offset1, int64_t Offset2,
unsigned NumLoads) const;
bool ReverseBranchCondition(SmallVectorImpl<MachineOperand> &Cond) const;
void insertNoop(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MI) const;
bool isPredicated(const MachineInstr *MI) const;
bool SubsumesPredicate(const SmallVectorImpl<MachineOperand> &Pred1,
const SmallVectorImpl<MachineOperand> &Pred2) const;
bool DefinesPredicate(MachineInstr *MI,
std::vector<MachineOperand> &Pred) const;
bool isPredicable(MachineInstr *MI) const;
bool isSafeToMoveRegClassDefs(const TargetRegisterClass *RC) const;
// Helper functions that check the opcode for status information
bool isLoadInst(llvm::MachineInstr *MI) const;
bool isExtLoadInst(llvm::MachineInstr *MI) const;
bool isSWSExtLoadInst(llvm::MachineInstr *MI) const;
bool isSExtLoadInst(llvm::MachineInstr *MI) const;
bool isZExtLoadInst(llvm::MachineInstr *MI) const;
bool isAExtLoadInst(llvm::MachineInstr *MI) const;
bool isStoreInst(llvm::MachineInstr *MI) const;
bool isTruncStoreInst(llvm::MachineInstr *MI) const;
virtual MachineInstr* getMovImmInstr(MachineFunction *MF, unsigned DstReg,
int64_t Imm) const = 0;
virtual unsigned getIEQOpcode() const = 0;
virtual bool isMov(unsigned opcode) const = 0;
/// convertToISA - Convert the AMDIL MachineInstr to a supported ISA
/// MachineInstr
virtual MachineInstr * convertToISA(MachineInstr & MI, MachineFunction &MF,
DebugLoc DL) const;
};
} // End llvm namespace
#endif // AMDGPUINSTRINFO_H_
|
