1 //=- Mips32r6InstrInfo.td - Mips32r6 Instruction Information -*- tablegen -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes Mips32r6 instructions.
12 //===----------------------------------------------------------------------===//
14 include "Mips32r6InstrFormats.td"
16 // Notes about removals/changes from MIPS32r6:
18 // Reencoded: cache, pref
19 // Reencoded: clo, clz
20 // Reencoded: jr -> jalr
21 // Reencoded: jr.hb -> jalr.hb
28 // Removed: /.ps$/, cvt.ps.s, cvt.ps.pw
30 // Removed: bc1any2, bc1any4
32 // Removed: bc2f, bc2t
35 // Removed: c.cond.fmt, bc1[ft]
40 // Removed: lwl, lwr, lwle, lwre, swl, swr, swle, swre
42 // Removed: madd.[ds], nmadd.[ds], nmsub.[ds], sub.[ds]
43 // Removed: mfhi, mflo, mthi, mtlo, madd, maddu, msub, msubu, mul
44 // Removed: movf, movt
45 // Removed: movf.fmt, movt.fmt, movn.fmt, movz.fmt
46 // Removed: movn, movz
47 // Removed: mult, multu
52 // Removed: teqi, tgei, tgeiu, tlti, tltiu, tnei
53 // Rencoded: [ls][wd]c2
55 //===----------------------------------------------------------------------===//
57 // Instruction Encodings
59 //===----------------------------------------------------------------------===//
61 class AUI_ENC : AUI_FM;
62 class DIV_ENC : SPECIAL_3R_FM<0b00010, 0b011010>;
63 class DIVU_ENC : SPECIAL_3R_FM<0b00010, 0b011011>;
64 class MOD_ENC : SPECIAL_3R_FM<0b00011, 0b011010>;
65 class MODU_ENC : SPECIAL_3R_FM<0b00011, 0b011011>;
66 class MUH_ENC : SPECIAL_3R_FM<0b00011, 0b011000>;
67 class MUHU_ENC : SPECIAL_3R_FM<0b00011, 0b011001>;
68 class MUL_R6_ENC : SPECIAL_3R_FM<0b00010, 0b011000>;
69 class MULU_ENC : SPECIAL_3R_FM<0b00010, 0b011001>;
70 class SEL_D_ENC : COP1_3R_FM<0b010000, FIELD_FMT_D>;
71 class SEL_S_ENC : COP1_3R_FM<0b010000, FIELD_FMT_S>;
73 //===----------------------------------------------------------------------===//
75 // Instruction Descriptions
77 //===----------------------------------------------------------------------===//
79 class AUI_DESC_BASE<string instr_asm, RegisterOperand GPROpnd> {
80 dag OutOperandList = (outs GPROpnd:$rs);
81 dag InOperandList = (ins GPROpnd:$rt, simm16:$imm);
82 string AsmString = !strconcat(instr_asm, "\t$rs, $rt, $imm");
83 list<dag> Pattern = [];
86 class AUI_DESC : AUI_DESC_BASE<"aui", GPR32Opnd>;
88 class DIVMOD_DESC_BASE<string instr_asm, RegisterOperand GPROpnd> {
89 dag OutOperandList = (outs GPROpnd:$rd);
90 dag InOperandList = (ins GPROpnd:$rs, GPROpnd:$rt);
91 string AsmString = !strconcat(instr_asm, "\t$rd, $rs, $rt");
92 list<dag> Pattern = [];
95 class DIV_DESC : DIVMOD_DESC_BASE<"div", GPR32Opnd>;
96 class DIVU_DESC : DIVMOD_DESC_BASE<"divu", GPR32Opnd>;
97 class MOD_DESC : DIVMOD_DESC_BASE<"mod", GPR32Opnd>;
98 class MODU_DESC : DIVMOD_DESC_BASE<"modu", GPR32Opnd>;
100 class MUL_R6_DESC_BASE<string instr_asm, RegisterOperand GPROpnd> {
101 dag OutOperandList = (outs GPROpnd:$rd);
102 dag InOperandList = (ins GPROpnd:$rs, GPROpnd:$rt);
103 string AsmString = !strconcat(instr_asm, "\t$rd, $rs, $rt");
104 list<dag> Pattern = [];
107 class MUH_DESC : MUL_R6_DESC_BASE<"muh", GPR32Opnd>;
108 class MUHU_DESC : MUL_R6_DESC_BASE<"muhu", GPR32Opnd>;
109 class MUL_R6_DESC : MUL_R6_DESC_BASE<"mul", GPR32Opnd>;
110 class MULU_DESC : MUL_R6_DESC_BASE<"mulu", GPR32Opnd>;
112 class SEL_DESC_BASE<string instr_asm, RegisterOperand FGROpnd> {
113 dag OutOperandList = (outs FGROpnd:$fd);
114 dag InOperandList = (ins FGROpnd:$fd_in, FGROpnd:$fs, FGROpnd:$ft);
115 string AsmString = !strconcat(instr_asm, "\t$fd, $fs, $ft");
116 list<dag> Pattern = [];
117 string Constraints = "$fd_in = $fd";
120 class SEL_D_DESC : SEL_DESC_BASE<"sel.d", FGR64Opnd>;
121 class SEL_S_DESC : SEL_DESC_BASE<"sel.s", FGR32Opnd>;
123 //===----------------------------------------------------------------------===//
125 // Instruction Definitions
127 //===----------------------------------------------------------------------===//
130 def ALIGN; // Known as as BALIGN in DSP ASE
132 def AUI : AUI_ENC, AUI_DESC, ISA_MIPS32R6;
143 def BGEC; // Also aliased to blec with operands swapped
144 def BGEUC; // Also aliased to bleuc with operands swapped
149 def BITSWAP; // Known as BITREV in DSP ASE
152 def BLTC; // Also aliased to bgtc with operands swapped
153 def BLTUC; // Also aliased to bgtuc with operands swapped
165 def DIV : DIV_ENC, DIV_DESC, ISA_MIPS32R6;
166 def DIVU : DIVU_ENC, DIVU_DESC, ISA_MIPS32R6;
169 // def LSA; // See MSA
180 def MOD : MOD_ENC, MOD_DESC, ISA_MIPS32R6;
181 def MODU : MODU_ENC, MODU_DESC, ISA_MIPS32R6;
183 def MUH : MUH_ENC, MUH_DESC, ISA_MIPS32R6;
184 def MUHU : MUHU_ENC, MUHU_DESC, ISA_MIPS32R6;
185 def MUL_R6 : MUL_R6_ENC, MUL_R6_DESC, ISA_MIPS32R6;
186 def MULU : MULU_ENC, MULU_DESC, ISA_MIPS32R6;
187 def NAL; // BAL with rd=0
196 def SEL_D : SEL_D_ENC, SEL_D_DESC, ISA_MIPS32R6;
197 def SEL_S : SEL_S_ENC, SEL_S_DESC, ISA_MIPS32R6;