1 //=- Mips64r6InstrInfo.td - Mips64r6 Instruction Information -*- tablegen -*-=// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file describes Mips64r6 instructions. 11 // 12 //===----------------------------------------------------------------------===// 13 14 // Notes about removals/changes from MIPS32r6: 15 // Reencoded: dclo, dclz 16 17 //===----------------------------------------------------------------------===// 18 // 19 // Instruction Encodings 20 // 21 //===----------------------------------------------------------------------===// 22 23 class DALIGN_ENC : SPECIAL3_DALIGN_FM<OPCODE6_DALIGN>; 24 class DAUI_ENC : DAUI_FM; 25 class DAHI_ENC : REGIMM_FM<OPCODE5_DAHI>; 26 class DATI_ENC : REGIMM_FM<OPCODE5_DATI>; 27 class DBITSWAP_ENC : SPECIAL3_2R_FM<OPCODE6_DBITSWAP>; 28 class DCLO_R6_ENC : SPECIAL_2R_FM<OPCODE6_DCLO>; 29 class DCLZ_R6_ENC : SPECIAL_2R_FM<OPCODE6_DCLZ>; 30 class DDIV_ENC : SPECIAL_3R_FM<0b00010, 0b011110>; 31 class DDIVU_ENC : SPECIAL_3R_FM<0b00010, 0b011111>; 32 class DLSA_R6_ENC : SPECIAL_LSA_FM<OPCODE6_DLSA>; 33 class DMOD_ENC : SPECIAL_3R_FM<0b00011, 0b011110>; 34 class DMODU_ENC : SPECIAL_3R_FM<0b00011, 0b011111>; 35 class DMUH_ENC : SPECIAL_3R_FM<0b00011, 0b011100>; 36 class DMUHU_ENC : SPECIAL_3R_FM<0b00011, 0b011101>; 37 class DMUL_R6_ENC : SPECIAL_3R_FM<0b00010, 0b011100>; 38 class DMULU_ENC : SPECIAL_3R_FM<0b00010, 0b011101>; 39 class LDPC_ENC : PCREL18_FM<OPCODE3_LDPC>; 40 class LLD_R6_ENC : SPECIAL3_LL_SC_FM<OPCODE6_LLD>; 41 class SCD_R6_ENC : SPECIAL3_LL_SC_FM<OPCODE6_SCD>; 42 43 //===----------------------------------------------------------------------===// 44 // 45 // Instruction Descriptions 46 // 47 //===----------------------------------------------------------------------===// 48 49 class AHI_ATI_DESC_BASE<string instr_asm, RegisterOperand GPROpnd, InstrItinClass itin> { 50 dag OutOperandList = (outs GPROpnd:$rs); 51 dag InOperandList = (ins GPROpnd:$rt, simm16_relaxed:$imm); 52 string AsmString = !strconcat(instr_asm, "\t$rt, $imm"); 53 string Constraints = "$rs = $rt"; 54 InstrItinClass Itinerary = itin; 55 } 56 57 class DALIGN_DESC : ALIGN_DESC_BASE<"dalign", GPR64Opnd, uimm3, II_DALIGN>; 58 class DAHI_DESC : AHI_ATI_DESC_BASE<"dahi", GPR64Opnd, II_DAHI>; 59 class DATI_DESC : AHI_ATI_DESC_BASE<"dati", GPR64Opnd, II_DATI>; 60 class DAUI_DESC : AUI_DESC_BASE<"daui", GPR64Opnd, II_DAUI>; 61 class DBITSWAP_DESC : BITSWAP_DESC_BASE<"dbitswap", GPR64Opnd, II_DBITSWAP>; 62 class DCLO_R6_DESC : CLO_R6_DESC_BASE<"dclo", GPR64Opnd, II_DCLO>; 63 class DCLZ_R6_DESC : CLZ_R6_DESC_BASE<"dclz", GPR64Opnd, II_DCLZ>; 64 class DDIV_DESC : DIVMOD_DESC_BASE<"ddiv", GPR64Opnd, II_DDIV, sdiv>; 65 class DDIVU_DESC : DIVMOD_DESC_BASE<"ddivu", GPR64Opnd, II_DDIVU, udiv>; 66 class DLSA_R6_DESC : LSA_R6_DESC_BASE<"dlsa", GPR64Opnd, uimm2_plus1, II_DLSA>; 67 class DMOD_DESC : DIVMOD_DESC_BASE<"dmod", GPR64Opnd, II_DMOD, srem>; 68 class DMODU_DESC : DIVMOD_DESC_BASE<"dmodu", GPR64Opnd, II_DMODU, urem>; 69 class DMUH_DESC : MUL_R6_DESC_BASE<"dmuh", GPR64Opnd, II_DMUH, mulhs>; 70 class DMUHU_DESC : MUL_R6_DESC_BASE<"dmuhu", GPR64Opnd, II_DMUHU, mulhu>; 71 class DMUL_R6_DESC : MUL_R6_DESC_BASE<"dmul", GPR64Opnd, II_DMUL, mul>; 72 class DMULU_DESC : MUL_R6_DESC_BASE<"dmulu", GPR64Opnd, II_DMUL>; 73 class LDPC_DESC : PCREL_DESC_BASE<"ldpc", GPR64Opnd, simm18_lsl3, II_LDPC>; 74 class LLD_R6_DESC : LL_R6_DESC_BASE<"lld", GPR64Opnd, mem_simm16, II_LLD>; 75 class SCD_R6_DESC : SC_R6_DESC_BASE<"scd", GPR64Opnd, II_SCD>; 76 class SELEQZ64_DESC : SELEQNE_Z_DESC_BASE<"seleqz", GPR64Opnd>; 77 class SELNEZ64_DESC : SELEQNE_Z_DESC_BASE<"selnez", GPR64Opnd>; 78 79 class JIALC64_DESC : JMP_IDX_COMPACT_DESC_BASE<"jialc", calloffset16, 80 GPR64Opnd> { 81 bit isCall = 1; 82 list<Register> Defs = [RA]; 83 } 84 85 class JIC64_DESC : JMP_IDX_COMPACT_DESC_BASE<"jic", jmpoffset16, GPR64Opnd> { 86 bit isBarrier = 1; 87 bit isTerminator = 1; 88 list<Register> Defs = [AT]; 89 } 90 91 class LL64_R6_DESC : LL_R6_DESC_BASE<"ll", GPR32Opnd, mem_simm9, II_LL>; 92 class SC64_R6_DESC : SC_R6_DESC_BASE<"sc", GPR32Opnd, II_SC>; 93 //===----------------------------------------------------------------------===// 94 // 95 // Instruction Definitions 96 // 97 //===----------------------------------------------------------------------===// 98 99 let AdditionalPredicates = [NotInMicroMips] in { 100 def DATI : DATI_ENC, DATI_DESC, ISA_MIPS64R6; 101 def DAHI : DAHI_ENC, DAHI_DESC, ISA_MIPS64R6; 102 def DAUI : DAUI_ENC, DAUI_DESC, ISA_MIPS64R6; 103 def DALIGN : DALIGN_ENC, DALIGN_DESC, ISA_MIPS64R6; 104 } 105 def DBITSWAP : DBITSWAP_ENC, DBITSWAP_DESC, ISA_MIPS64R6; 106 let AdditionalPredicates = [NotInMicroMips] in { 107 def DCLO_R6 : R6MMR6Rel, DCLO_R6_ENC, DCLO_R6_DESC, ISA_MIPS64R6; 108 def DCLZ_R6 : R6MMR6Rel, DCLZ_R6_ENC, DCLZ_R6_DESC, ISA_MIPS64R6; 109 def DDIV : DDIV_ENC, DDIV_DESC, ISA_MIPS64R6; 110 def DDIVU : DDIVU_ENC, DDIVU_DESC, ISA_MIPS64R6; 111 def DMOD : DMOD_ENC, DMOD_DESC, ISA_MIPS64R6; 112 def DMODU : DMODU_ENC, DMODU_DESC, ISA_MIPS64R6; 113 } 114 def DLSA_R6 : DLSA_R6_ENC, DLSA_R6_DESC, ISA_MIPS64R6; 115 let AdditionalPredicates = [NotInMicroMips] in { 116 def DMUH: DMUH_ENC, DMUH_DESC, ISA_MIPS64R6; 117 def DMUHU: DMUHU_ENC, DMUHU_DESC, ISA_MIPS64R6; 118 def DMUL_R6: DMUL_R6_ENC, DMUL_R6_DESC, ISA_MIPS64R6; 119 def DMULU: DMULU_ENC, DMULU_DESC, ISA_MIPS64R6; 120 def LLD_R6 : R6MMR6Rel, LLD_R6_ENC, LLD_R6_DESC, ISA_MIPS64R6; 121 } 122 def LDPC: R6MMR6Rel, LDPC_ENC, LDPC_DESC, ISA_MIPS64R6; 123 def SCD_R6 : SCD_R6_ENC, SCD_R6_DESC, ISA_MIPS32R6; 124 let DecoderNamespace = "Mips32r6_64r6_GP64" in { 125 def SELEQZ64 : SELEQZ_ENC, SELEQZ64_DESC, ISA_MIPS32R6, GPR_64; 126 def SELNEZ64 : SELNEZ_ENC, SELNEZ64_DESC, ISA_MIPS32R6, GPR_64; 127 } 128 let AdditionalPredicates = [NotInMicroMips], 129 DecoderNamespace = "Mips32r6_64r6_PTR64" in { 130 def LL64_R6 : LL_R6_ENC, LL64_R6_DESC, PTR_64, ISA_MIPS64R6; 131 def SC64_R6 : SC_R6_ENC, SC64_R6_DESC, PTR_64, ISA_MIPS64R6; 132 } 133 let isCodeGenOnly = 1 in { 134 def JIALC64 : JIALC_ENC, JIALC64_DESC, ISA_MIPS64R6; 135 def JIC64 : JIC_ENC, JIC64_DESC, ISA_MIPS64R6; 136 } 137 //===----------------------------------------------------------------------===// 138 // 139 // Instruction Aliases 140 // 141 //===----------------------------------------------------------------------===// 142 143 def : MipsInstAlias<"jr $rs", (JALR64 ZERO_64, GPR64Opnd:$rs), 1>, ISA_MIPS64R6; 144 145 def : MipsInstAlias<"jrc $rs", (JIC64 GPR64Opnd:$rs, 0), 1>, ISA_MIPS64R6; 146 147 def : MipsInstAlias<"jalrc $rs", (JIALC64 GPR64Opnd:$rs, 0), 1>, ISA_MIPS64R6; 148 //===----------------------------------------------------------------------===// 149 // 150 // Patterns and Pseudo Instructions 151 // 152 //===----------------------------------------------------------------------===// 153 154 // i64 selects 155 def : MipsPat<(select i64:$cond, i64:$t, i64:$f), 156 (OR64 (SELNEZ64 i64:$t, i64:$cond), 157 (SELEQZ64 i64:$f, i64:$cond))>, 158 ISA_MIPS64R6; 159 def : MipsPat<(select (i32 (seteq i64:$cond, immz)), i64:$t, i64:$f), 160 (OR64 (SELEQZ64 i64:$t, i64:$cond), 161 (SELNEZ64 i64:$f, i64:$cond))>, 162 ISA_MIPS64R6; 163 def : MipsPat<(select (i32 (setne i64:$cond, immz)), i64:$t, i64:$f), 164 (OR64 (SELNEZ64 i64:$t, i64:$cond), 165 (SELEQZ64 i64:$f, i64:$cond))>, 166 ISA_MIPS64R6; 167 def : MipsPat<(select (i32 (seteq i64:$cond, immZExt16_64:$imm)), i64:$t, i64:$f), 168 (OR64 (SELEQZ64 i64:$t, (XORi64 i64:$cond, immZExt16_64:$imm)), 169 (SELNEZ64 i64:$f, (XORi64 i64:$cond, immZExt16_64:$imm)))>, 170 ISA_MIPS64R6; 171 def : MipsPat<(select (i32 (setne i64:$cond, immZExt16_64:$imm)), i64:$t, i64:$f), 172 (OR64 (SELNEZ64 i64:$t, (XORi64 i64:$cond, immZExt16_64:$imm)), 173 (SELEQZ64 i64:$f, (XORi64 i64:$cond, immZExt16_64:$imm)))>, 174 ISA_MIPS64R6; 175 def : MipsPat< 176 (select (i32 (setgt i64:$cond, immSExt16Plus1:$imm)), i64:$t, i64:$f), 177 (OR64 (SELEQZ64 i64:$t, 178 (SUBREG_TO_REG (i64 0), (SLTi64 i64:$cond, (Plus1 imm:$imm)), 179 sub_32)), 180 (SELNEZ64 i64:$f, 181 (SUBREG_TO_REG (i64 0), (SLTi64 i64:$cond, (Plus1 imm:$imm)), 182 sub_32)))>, 183 ISA_MIPS64R6; 184 def : MipsPat< 185 (select (i32 (setugt i64:$cond, immSExt16Plus1:$imm)), i64:$t, i64:$f), 186 (OR64 (SELEQZ64 i64:$t, 187 (SUBREG_TO_REG (i64 0), (SLTiu64 i64:$cond, (Plus1 imm:$imm)), 188 sub_32)), 189 (SELNEZ64 i64:$f, 190 (SUBREG_TO_REG (i64 0), (SLTiu64 i64:$cond, (Plus1 imm:$imm)), 191 sub_32)))>, 192 ISA_MIPS64R6; 193 194 def : MipsPat<(select (i32 (setne i64:$cond, immz)), i64:$t, immz), 195 (SELNEZ64 i64:$t, i64:$cond)>, ISA_MIPS64R6; 196 def : MipsPat<(select (i32 (seteq i64:$cond, immz)), i64:$t, immz), 197 (SELEQZ64 i64:$t, i64:$cond)>, ISA_MIPS64R6; 198 def : MipsPat<(select (i32 (setne i64:$cond, immz)), immz, i64:$f), 199 (SELEQZ64 i64:$f, i64:$cond)>, ISA_MIPS64R6; 200 def : MipsPat<(select (i32 (seteq i64:$cond, immz)), immz, i64:$f), 201 (SELNEZ64 i64:$f, i64:$cond)>, ISA_MIPS64R6; 202 203 // i64 selects from an i32 comparison 204 // One complicating factor here is that bits 32-63 of an i32 are undefined. 205 // FIXME: Ideally, setcc would always produce an i64 on MIPS64 targets. 206 // This would allow us to remove the sign-extensions here. 207 def : MipsPat<(select i32:$cond, i64:$t, i64:$f), 208 (OR64 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond)), 209 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond)))>, 210 ISA_MIPS64R6; 211 def : MipsPat<(select (i32 (seteq i32:$cond, immz)), i64:$t, i64:$f), 212 (OR64 (SELEQZ64 i64:$t, (SLL64_32 i32:$cond)), 213 (SELNEZ64 i64:$f, (SLL64_32 i32:$cond)))>, 214 ISA_MIPS64R6; 215 def : MipsPat<(select (i32 (setne i32:$cond, immz)), i64:$t, i64:$f), 216 (OR64 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond)), 217 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond)))>, 218 ISA_MIPS64R6; 219 def : MipsPat<(select (i32 (seteq i32:$cond, immZExt16:$imm)), i64:$t, i64:$f), 220 (OR64 (SELEQZ64 i64:$t, (SLL64_32 (XORi i32:$cond, 221 immZExt16:$imm))), 222 (SELNEZ64 i64:$f, (SLL64_32 (XORi i32:$cond, 223 immZExt16:$imm))))>, 224 ISA_MIPS64R6; 225 def : MipsPat<(select (i32 (setne i32:$cond, immZExt16:$imm)), i64:$t, i64:$f), 226 (OR64 (SELNEZ64 i64:$t, (SLL64_32 (XORi i32:$cond, 227 immZExt16:$imm))), 228 (SELEQZ64 i64:$f, (SLL64_32 (XORi i32:$cond, 229 immZExt16:$imm))))>, 230 ISA_MIPS64R6; 231 232 def : MipsPat<(select i32:$cond, i64:$t, immz), 233 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond))>, 234 ISA_MIPS64R6; 235 def : MipsPat<(select (i32 (setne i32:$cond, immz)), i64:$t, immz), 236 (SELNEZ64 i64:$t, (SLL64_32 i32:$cond))>, 237 ISA_MIPS64R6; 238 def : MipsPat<(select (i32 (seteq i32:$cond, immz)), i64:$t, immz), 239 (SELEQZ64 i64:$t, (SLL64_32 i32:$cond))>, 240 ISA_MIPS64R6; 241 def : MipsPat<(select i32:$cond, immz, i64:$f), 242 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond))>, 243 ISA_MIPS64R6; 244 def : MipsPat<(select (i32 (setne i32:$cond, immz)), immz, i64:$f), 245 (SELEQZ64 i64:$f, (SLL64_32 i32:$cond))>, 246 ISA_MIPS64R6; 247 def : MipsPat<(select (i32 (seteq i32:$cond, immz)), immz, i64:$f), 248 (SELNEZ64 i64:$f, (SLL64_32 i32:$cond))>, 249 ISA_MIPS64R6; 250
