1; Options for the SPARC port of the compiler 2; 3; Copyright (C) 2005-2019 Free Software Foundation, Inc. 4; 5; This file is part of GCC. 6; 7; GCC is free software; you can redistribute it and/or modify it under 8; the terms of the GNU General Public License as published by the Free 9; Software Foundation; either version 3, or (at your option) any later 10; version. 11; 12; GCC is distributed in the hope that it will be useful, but WITHOUT 13; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15; License for more details. 16; 17; You should have received a copy of the GNU General Public License 18; along with GCC; see the file COPYING3. If not see 19; <http://www.gnu.org/licenses/>. 20 21HeaderInclude 22config/sparc/sparc-opts.h 23 24;; Debug flags 25TargetVariable 26unsigned int sparc_debug 27 28mfpu 29Target Report Mask(FPU) 30Use hardware FP. 31 32mhard-float 33Target RejectNegative Mask(FPU) 34Use hardware FP. 35 36msoft-float 37Target RejectNegative InverseMask(FPU) 38Do not use hardware FP. 39 40mflat 41Target Report Mask(FLAT) 42Use flat register window model. 43 44munaligned-doubles 45Target Report Mask(UNALIGNED_DOUBLES) 46Assume possible double misalignment. 47 48mapp-regs 49Target Report Mask(APP_REGS) 50Use ABI reserved registers. 51 52mhard-quad-float 53Target Report RejectNegative Mask(HARD_QUAD) 54Use hardware quad FP instructions. 55 56msoft-quad-float 57Target Report RejectNegative InverseMask(HARD_QUAD) 58Do not use hardware quad fp instructions. 59 60mlra 61Target Report Mask(LRA) 62Enable Local Register Allocation. 63 64mv8plus 65Target Report Mask(V8PLUS) 66Compile for V8+ ABI. 67 68mvis 69Target Report Mask(VIS) 70Use UltraSPARC Visual Instruction Set version 1.0 extensions. 71 72mvis2 73Target Report Mask(VIS2) 74Use UltraSPARC Visual Instruction Set version 2.0 extensions. 75 76mvis3 77Target Report Mask(VIS3) 78Use UltraSPARC Visual Instruction Set version 3.0 extensions. 79 80mvis4 81Target Report Mask(VIS4) 82Use UltraSPARC Visual Instruction Set version 4.0 extensions. 83 84mvis4b 85Target Report Mask(VIS4B) 86Use additional VIS instructions introduced in OSA2017. 87 88mcbcond 89Target Report Mask(CBCOND) 90Use UltraSPARC Compare-and-Branch extensions. 91 92mfmaf 93Target Report Mask(FMAF) 94Use UltraSPARC Fused Multiply-Add extensions. 95 96mfsmuld 97Target Report Mask(FSMULD) 98Use Floating-point Multiply Single to Double (FsMULd) instruction. 99 100mpopc 101Target Report Mask(POPC) 102Use UltraSPARC Population-Count instruction. 103 104msubxc 105Target Report Mask(SUBXC) 106Use UltraSPARC Subtract-Extended-with-Carry instruction. 107 108mptr64 109Target Report RejectNegative Mask(PTR64) 110Pointers are 64-bit. 111 112mptr32 113Target Report RejectNegative InverseMask(PTR64) 114Pointers are 32-bit. 115 116m64 117Target Report RejectNegative Mask(64BIT) 118Use 64-bit ABI. 119 120m32 121Target Report RejectNegative InverseMask(64BIT) 122Use 32-bit ABI. 123 124mstack-bias 125Target Report Mask(STACK_BIAS) 126Use stack bias. 127 128mfaster-structs 129Target Report Mask(FASTER_STRUCTS) 130Use structs on stronger alignment for double-word copies. 131 132mrelax 133Target 134Optimize tail call instructions in assembler and linker. 135 136muser-mode 137Target Report InverseMask(SV_MODE) 138Do not generate code that can only run in supervisor mode (default). 139 140mcpu= 141Target RejectNegative Joined Var(sparc_cpu_and_features) Enum(sparc_processor) Init(PROCESSOR_V7) 142Use instructions of and schedule code for given CPU. 143 144mtune= 145Target RejectNegative Joined Var(sparc_cpu) Enum(sparc_processor) Init(PROCESSOR_V7) 146Schedule code for given CPU. 147 148Enum 149Name(sparc_processor) Type(enum sparc_processor_type) 150 151EnumValue 152Enum(sparc_processor) String(native) Value(PROCESSOR_NATIVE) DriverOnly 153 154EnumValue 155Enum(sparc_processor) String(v7) Value(PROCESSOR_V7) 156 157EnumValue 158Enum(sparc_processor) String(cypress) Value(PROCESSOR_CYPRESS) 159 160EnumValue 161Enum(sparc_processor) String(v8) Value(PROCESSOR_V8) 162 163EnumValue 164Enum(sparc_processor) String(supersparc) Value(PROCESSOR_SUPERSPARC) 165 166EnumValue 167Enum(sparc_processor) String(hypersparc) Value(PROCESSOR_HYPERSPARC) 168 169EnumValue 170Enum(sparc_processor) String(leon) Value(PROCESSOR_LEON) 171 172EnumValue 173Enum(sparc_processor) String(leon3) Value(PROCESSOR_LEON3) 174 175EnumValue 176Enum(sparc_processor) String(leon3v7) Value(PROCESSOR_LEON3V7) 177 178EnumValue 179Enum(sparc_processor) String(sparclite) Value(PROCESSOR_SPARCLITE) 180 181EnumValue 182Enum(sparc_processor) String(f930) Value(PROCESSOR_F930) 183 184EnumValue 185Enum(sparc_processor) String(f934) Value(PROCESSOR_F934) 186 187EnumValue 188Enum(sparc_processor) String(sparclite86x) Value(PROCESSOR_SPARCLITE86X) 189 190EnumValue 191Enum(sparc_processor) String(sparclet) Value(PROCESSOR_SPARCLET) 192 193EnumValue 194Enum(sparc_processor) String(tsc701) Value(PROCESSOR_TSC701) 195 196EnumValue 197Enum(sparc_processor) String(v9) Value(PROCESSOR_V9) 198 199EnumValue 200Enum(sparc_processor) String(ultrasparc) Value(PROCESSOR_ULTRASPARC) 201 202EnumValue 203Enum(sparc_processor) String(ultrasparc3) Value(PROCESSOR_ULTRASPARC3) 204 205EnumValue 206Enum(sparc_processor) String(niagara) Value(PROCESSOR_NIAGARA) 207 208EnumValue 209Enum(sparc_processor) String(niagara2) Value(PROCESSOR_NIAGARA2) 210 211EnumValue 212Enum(sparc_processor) String(niagara3) Value(PROCESSOR_NIAGARA3) 213 214EnumValue 215Enum(sparc_processor) String(niagara4) Value(PROCESSOR_NIAGARA4) 216 217EnumValue 218Enum(sparc_processor) String(niagara7) Value(PROCESSOR_NIAGARA7) 219 220EnumValue 221Enum(sparc_processor) String(m8) Value(PROCESSOR_M8) 222 223mcmodel= 224Target RejectNegative Joined Var(sparc_code_model) Enum(sparc_code_model) Init(CM_32) 225Use given SPARC-V9 code model. 226 227Enum 228Name(sparc_code_model) Type(enum sparc_code_model_type) 229 230EnumValue 231Enum(sparc_code_model) String(32) Value(CM_32) 232 233EnumValue 234Enum(sparc_code_model) String(medlow) Value(CM_MEDLOW) 235 236EnumValue 237Enum(sparc_code_model) String(medmid) Value(CM_MEDMID) 238 239EnumValue 240Enum(sparc_code_model) String(medany) Value(CM_MEDANY) 241 242EnumValue 243Enum(sparc_code_model) String(embmedany) Value(CM_EMBMEDANY) 244 245mdebug= 246Target RejectNegative Joined Undocumented Var(sparc_debug_string) 247Enable debug output. 248 249mstd-struct-return 250Target Report Var(sparc_std_struct_return) 251Enable strict 32-bit psABI struct return checking. 252 253mfix-at697f 254Target Report RejectNegative Var(sparc_fix_at697f) 255Enable workaround for single erratum of AT697F processor 256(corresponding to erratum #13 of AT697E processor). 257 258mfix-ut699 259Target Report RejectNegative Var(sparc_fix_ut699) 260Enable workarounds for the errata of the UT699 processor. 261 262mfix-ut700 263Target Report RejectNegative Var(sparc_fix_ut700) 264Enable workarounds for the errata of the UT699E/UT700 processor. 265 266mfix-gr712rc 267Target Report RejectNegative Var(sparc_fix_gr712rc) 268Enable workarounds for the errata of the GR712RC processor. 269 270;; Enable workaround for back-to-back store errata 271TargetVariable 272unsigned int sparc_fix_b2bst 273 274;; Enable workaround for GRLIB-TN-0013 errata 275TargetVariable 276unsigned int sparc_fix_lost_divsqrt 277 278Mask(LONG_DOUBLE_128) 279;; Use 128-bit long double 280 281Mask(LEON) 282;; Generate code for LEON 283 284Mask(LEON3) 285;; Generate code for LEON3 286 287Mask(SPARCLITE) 288;; Generate code for SPARClite 289 290Mask(SPARCLET) 291;; Generate code for SPARClet 292 293Mask(V8) 294;; Generate code for SPARC-V8 295 296Mask(V9) 297;; Generate code for SPARC-V9 298 299Mask(DEPRECATED_V8_INSNS) 300;; Generate code that uses the V8 instructions deprecated 301;; in the V9 architecture. 302 303mmemory-model= 304Target RejectNegative Joined Var(sparc_memory_model) Enum(sparc_memory_model) Init(SMM_DEFAULT) 305Specify the memory model in effect for the program. 306 307Enum 308Name(sparc_memory_model) Type(enum sparc_memory_model_type) 309 310EnumValue 311Enum(sparc_memory_model) String(default) Value(SMM_DEFAULT) 312 313EnumValue 314Enum(sparc_memory_model) String(rmo) Value(SMM_RMO) 315 316EnumValue 317Enum(sparc_memory_model) String(pso) Value(SMM_PSO) 318 319EnumValue 320Enum(sparc_memory_model) String(tso) Value(SMM_TSO) 321 322EnumValue 323Enum(sparc_memory_model) String(sc) Value(SMM_SC) 324