LLVM 20.0.0git
MipsBaseInfo.h
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1//===-- MipsBaseInfo.h - Top level definitions for MIPS MC ------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains small standalone helper functions and enum definitions for
10// the Mips target useful for the compiler back-end and the MC libraries.
11//
12//===----------------------------------------------------------------------===//
13#ifndef LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSBASEINFO_H
14#define LLVM_LIB_TARGET_MIPS_MCTARGETDESC_MIPSBASEINFO_H
15
16#include "MipsFixupKinds.h"
17#include "MipsMCTargetDesc.h"
18#include "llvm/MC/MCExpr.h"
19#include "llvm/MC/MCInstrDesc.h"
22
23namespace llvm {
24
25/// MipsII - This namespace holds all of the target specific flags that
26/// instruction info tracks.
27///
28namespace MipsII {
29 /// Target Operand Flag enum.
30 enum TOF {
31 //===------------------------------------------------------------------===//
32 // Mips Specific MachineOperand flags.
33
35
36 /// MO_GOT - Represents the offset into the global offset table at which
37 /// the address the relocation entry symbol resides during execution.
39
40 /// MO_GOT_CALL - Represents the offset into the global offset table at
41 /// which the address of a call site relocation entry symbol resides
42 /// during execution. This is different from the above since this flag
43 /// can only be present in call instructions.
45
46 /// MO_GPREL - Represents the offset from the current gp value to be used
47 /// for the relocatable object file being produced.
49
50 /// MO_ABS_HI/LO - Represents the hi or low part of an absolute symbol
51 /// address.
54
55 /// MO_TLSGD - Represents the offset into the global offset table at which
56 // the module ID and TSL block offset reside during execution (General
57 // Dynamic TLS).
59
60 /// MO_TLSLDM - Represents the offset into the global offset table at which
61 // the module ID and TSL block offset reside during execution (Local
62 // Dynamic TLS).
66
67 /// MO_GOTTPREL - Represents the offset from the thread pointer (Initial
68 // Exec TLS).
70
71 /// MO_TPREL_HI/LO - Represents the hi and low part of the offset from
72 // the thread pointer (Local Exec TLS).
75
76 // N32/64 Flags.
82
83 /// MO_HIGHER/HIGHEST - Represents the highest or higher half word of a
84 /// 64-bit symbol address.
87
88 /// MO_GOT_HI16/LO16, MO_CALL_HI16/LO16 - Relocations used for large GOTs.
93
94 /// Helper operand used to generate R_MIPS_JALR
96 };
97
98 enum {
99 //===------------------------------------------------------------------===//
100 // Instruction encodings. These are the standard/most common forms for
101 // Mips instructions.
102 //
103
104 // Pseudo - This represents an instruction that is a pseudo instruction
105 // or one that has not been implemented yet. It is illegal to code generate
106 // it, but tolerated for intermediate implementation stages.
108
109 /// FrmR - This form is for instructions of the format R.
110 FrmR = 1,
111 /// FrmI - This form is for instructions of the format I.
112 FrmI = 2,
113 /// FrmJ - This form is for instructions of the format J.
114 FrmJ = 3,
115 /// FrmFR - This form is for instructions of the format FR.
116 FrmFR = 4,
117 /// FrmFI - This form is for instructions of the format FI.
118 FrmFI = 5,
119 /// FrmOther - This form is for instructions that have no specific format.
121
123 /// IsCTI - Instruction is a Control Transfer Instruction.
124 IsCTI = 1 << 4,
125 /// HasForbiddenSlot - Instruction has a forbidden slot.
127 /// HasFCCRegOperand - Instruction uses an $fcc<x> register.
128 HasFCCRegOperand = 1 << 6
129
130 };
131
132 enum OperandType : unsigned {
136 };
137}
138
140 if (Reg >= Mips::F0 && Reg <= Mips::F31)
141 return Reg - Mips::F0 + Mips::W0;
142 else if (Reg >= Mips::D0_64 && Reg <= Mips::D31_64)
143 return Reg - Mips::D0_64 + Mips::W0;
144 else
145 return Mips::NoRegister;
146}
147}
148
149#endif
unsigned Reg
Wrapper class representing physical registers. Should be passed by value.
Definition: MCRegister.h:33
@ OPERAND_FIRST_TARGET
Definition: MCInstrDesc.h:78
@ IsCTI
IsCTI - Instruction is a Control Transfer Instruction.
Definition: MipsBaseInfo.h:124
@ HasFCCRegOperand
HasFCCRegOperand - Instruction uses an $fcc<x> register.
Definition: MipsBaseInfo.h:128
@ FrmOther
FrmOther - This form is for instructions that have no specific format.
Definition: MipsBaseInfo.h:120
@ FrmI
FrmI - This form is for instructions of the format I.
Definition: MipsBaseInfo.h:112
@ FrmJ
FrmJ - This form is for instructions of the format J.
Definition: MipsBaseInfo.h:114
@ FrmFI
FrmFI - This form is for instructions of the format FI.
Definition: MipsBaseInfo.h:118
@ HasForbiddenSlot
HasForbiddenSlot - Instruction has a forbidden slot.
Definition: MipsBaseInfo.h:126
@ FrmFR
FrmFR - This form is for instructions of the format FR.
Definition: MipsBaseInfo.h:116
@ FrmR
FrmR - This form is for instructions of the format R.
Definition: MipsBaseInfo.h:110
TOF
Target Operand Flag enum.
Definition: MipsBaseInfo.h:30
@ MO_GOT_CALL
MO_GOT_CALL - Represents the offset into the global offset table at which the address of a call site ...
Definition: MipsBaseInfo.h:44
@ MO_TPREL_HI
MO_TPREL_HI/LO - Represents the hi and low part of the offset from.
Definition: MipsBaseInfo.h:73
@ MO_GOT
MO_GOT - Represents the offset into the global offset table at which the address the relocation entry...
Definition: MipsBaseInfo.h:38
@ MO_JALR
Helper operand used to generate R_MIPS_JALR.
Definition: MipsBaseInfo.h:95
@ MO_GOTTPREL
MO_GOTTPREL - Represents the offset from the thread pointer (Initial.
Definition: MipsBaseInfo.h:69
@ MO_ABS_HI
MO_ABS_HI/LO - Represents the hi or low part of an absolute symbol address.
Definition: MipsBaseInfo.h:52
@ MO_GOT_HI16
MO_GOT_HI16/LO16, MO_CALL_HI16/LO16 - Relocations used for large GOTs.
Definition: MipsBaseInfo.h:89
@ MO_TLSLDM
MO_TLSLDM - Represents the offset into the global offset table at which.
Definition: MipsBaseInfo.h:63
@ MO_TLSGD
MO_TLSGD - Represents the offset into the global offset table at which.
Definition: MipsBaseInfo.h:58
@ MO_GPREL
MO_GPREL - Represents the offset from the current gp value to be used for the relocatable object file...
Definition: MipsBaseInfo.h:48
@ MO_HIGHER
MO_HIGHER/HIGHEST - Represents the highest or higher half word of a 64-bit symbol address.
Definition: MipsBaseInfo.h:85
@ OPERAND_FIRST_MIPS_MEM_IMM
Definition: MipsBaseInfo.h:133
@ OPERAND_LAST_MIPS_MEM_IMM
Definition: MipsBaseInfo.h:135
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
static MCRegister getMSARegFromFReg(MCRegister Reg)
Definition: MipsBaseInfo.h:139