1/* Copyright (C) 2012-2019 Free Software Foundation, Inc. 2 Contributed by ARM Ltd. 3 4 This file is part of GCC. 5 6 GCC is free software; you can redistribute it and/or modify it 7 under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 GCC is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GCC; see the file COPYING3. If not see 18 <http://www.gnu.org/licenses/>. */ 19 20/* This is a list of ISA extentsions in AArch64. 21 22 Before using #include to read this file, define a macro: 23 24 AARCH64_OPT_EXTENSION(EXT_NAME, FLAG_CANONICAL, FLAGS_ON, FLAGS_OFF, 25 SYNTHETIC, FEATURE_STRING) 26 27 - EXT_NAME is the name of the extension, represented as a string constant. 28 - FLAGS_CANONICAL is the canonical internal name for this flag. 29 - FLAGS_ON are the bitwise-or of the features that enabling the extension 30 adds, or zero if enabling this extension has no effect on other features. 31 - FLAGS_OFF are the bitwise-or of the features that disabling the extension 32 removes, or zero if disabling this extension has no effect on other 33 features. 34 - SYNTHETIC is a boolean to indicate whether the option is a purely synthetic 35 grouping of options and that the option itself has no feature bit (e.g. 36 crypto). This is used to determine when sum of the individual options in 37 FLAGS_ON can be replaced by FLAG_CANONICAL in options minimization. If the 38 group is synthetic then they can be replaced when all options in FLAGS_ON 39 are enabled, otherwise they can only be replaced when 40 FLAGS_ON | FLAG_CANONICAL are enabled. 41 - FEAT_STRING is a string containing the entries in the 'Features' field of 42 /proc/cpuinfo on a GNU/Linux system that correspond to this architecture 43 extension being available. Sometimes multiple entries are needed to enable 44 the extension (for example, the 'crypto' extension depends on four 45 entries: aes, pmull, sha1, sha2 being present). In that case this field 46 should contain a space (" ") separated list of the strings in 'Features' 47 that are required. Their order is not important. An empty string means 48 do not detect this feature during auto detection. */ 49 50/* NOTE: This file is being parsed by config.gcc and so the 51 AARCH64_OPT_EXTENSION must adhere to a strict format: 52 1) No space between the AARCH64_OPT_EXTENSION and the opening (. 53 2) No space between the opening ( and the extension name. 54 3) No space after the extension name before the ,. 55 4) Spaces are only allowed after a , and around |. 56 5) Everything must be on one line. */ 57 58/* Enabling "fp" just enables "fp". 59 Disabling "fp" also disables "simd", "crypto", "fp16", "aes", "sha2", 60 "sha3", sm3/sm4 and "sve". */ 61AARCH64_OPT_EXTENSION("fp", AARCH64_FL_FP, 0, AARCH64_FL_SIMD | AARCH64_FL_CRYPTO | AARCH64_FL_F16 | AARCH64_FL_AES | AARCH64_FL_SHA2 | AARCH64_FL_SHA3 | AARCH64_FL_SM4 | AARCH64_FL_SVE, false, "fp") 62 63/* Enabling "simd" also enables "fp". 64 Disabling "simd" also disables "crypto", "dotprod", "aes", "sha2", "sha3", 65 "sm3/sm4" and "sve". */ 66AARCH64_OPT_EXTENSION("simd", AARCH64_FL_SIMD, AARCH64_FL_FP, AARCH64_FL_CRYPTO | AARCH64_FL_DOTPROD | AARCH64_FL_AES | AARCH64_FL_SHA2 | AARCH64_FL_SHA3 | AARCH64_FL_SM4 | AARCH64_FL_SVE, false, "asimd") 67 68/* Enabling "crypto" also enables "fp", "simd", "aes" and "sha2". 69 Disabling "crypto" disables "crypto", "aes", "sha2", "sha3" and "sm3/sm4". */ 70AARCH64_OPT_EXTENSION("crypto", AARCH64_FL_CRYPTO, AARCH64_FL_FP | AARCH64_FL_SIMD | AARCH64_FL_AES | AARCH64_FL_SHA2, AARCH64_FL_AES | AARCH64_FL_SHA2 |AARCH64_FL_SHA3 | AARCH64_FL_SM4, true, "aes pmull sha1 sha2") 71 72/* Enabling or disabling "crc" only changes "crc". */ 73AARCH64_OPT_EXTENSION("crc", AARCH64_FL_CRC, 0, 0, false, "crc32") 74 75/* Enabling or disabling "lse" only changes "lse". */ 76AARCH64_OPT_EXTENSION("lse", AARCH64_FL_LSE, 0, 0, false, "atomics") 77 78/* Enabling "fp16" also enables "fp". 79 Disabling "fp16" disables "fp16", "fp16fml" and "sve". */ 80AARCH64_OPT_EXTENSION("fp16", AARCH64_FL_F16, AARCH64_FL_FP, AARCH64_FL_F16FML | AARCH64_FL_SVE, false, "fphp asimdhp") 81 82/* Enabling or disabling "rcpc" only changes "rcpc". */ 83AARCH64_OPT_EXTENSION("rcpc", AARCH64_FL_RCPC, 0, 0, false, "lrcpc") 84 85/* Enabling "rdma" also enables "fp", "simd". 86 Disabling "rdma" just disables "rdma". */ 87AARCH64_OPT_EXTENSION("rdma", AARCH64_FL_RDMA, AARCH64_FL_FP | AARCH64_FL_SIMD, 0, false, "asimdrdm") 88 89/* Enabling "dotprod" also enables "simd". 90 Disabling "dotprod" only disables "dotprod". */ 91AARCH64_OPT_EXTENSION("dotprod", AARCH64_FL_DOTPROD, AARCH64_FL_SIMD, 0, false, "asimddp") 92 93/* Enabling "aes" also enables "simd". 94 Disabling "aes" just disables "aes". */ 95AARCH64_OPT_EXTENSION("aes", AARCH64_FL_AES, AARCH64_FL_SIMD, 0, false, "aes") 96 97/* Enabling "sha2" also enables "simd". 98 Disabling "sha2" just disables "sha2". */ 99AARCH64_OPT_EXTENSION("sha2", AARCH64_FL_SHA2, AARCH64_FL_SIMD, 0, false, "sha1 sha2") 100 101/* Enabling "sha3" enables "simd" and "sha2". 102 Disabling "sha3" just disables "sha3". */ 103AARCH64_OPT_EXTENSION("sha3", AARCH64_FL_SHA3, AARCH64_FL_SIMD | AARCH64_FL_SHA2, 0, false, "sha3 sha512") 104 105/* Enabling "sm4" also enables "simd". 106 Disabling "sm4" just disables "sm4". */ 107AARCH64_OPT_EXTENSION("sm4", AARCH64_FL_SM4, AARCH64_FL_SIMD, 0, false, "sm3 sm4") 108 109/* Enabling "fp16fml" also enables "fp" and "fp16". 110 Disabling "fp16fml" just disables "fp16fml". */ 111AARCH64_OPT_EXTENSION("fp16fml", AARCH64_FL_F16FML, AARCH64_FL_FP | AARCH64_FL_F16, 0, false, "asimdfhm") 112 113/* Enabling "sve" also enables "fp16", "fp" and "simd". 114 Disabling "sve" just disables "sve". */ 115AARCH64_OPT_EXTENSION("sve", AARCH64_FL_SVE, AARCH64_FL_FP | AARCH64_FL_SIMD | AARCH64_FL_F16, 0, false, "sve") 116 117/* Enabling/Disabling "profile" does not enable/disable any other feature. */ 118AARCH64_OPT_EXTENSION("profile", AARCH64_FL_PROFILE, 0, 0, false, "") 119 120/* Enabling/Disabling "rng" only changes "rng". */ 121AARCH64_OPT_EXTENSION("rng", AARCH64_FL_RNG, 0, 0, false, "rng") 122 123/* Enabling/Disabling "memtag" only changes "memtag". */ 124AARCH64_OPT_EXTENSION("memtag", AARCH64_FL_MEMTAG, 0, 0, false, "") 125 126/* Enabling/Disabling "sb" only changes "sb". */ 127AARCH64_OPT_EXTENSION("sb", AARCH64_FL_SB, 0, 0, false, "") 128 129/* Enabling/Disabling "ssbs" only changes "ssbs". */ 130AARCH64_OPT_EXTENSION("ssbs", AARCH64_FL_SSBS, 0, 0, false, "") 131 132/* Enabling/Disabling "predres" only changes "predres". */ 133AARCH64_OPT_EXTENSION("predres", AARCH64_FL_PREDRES, 0, 0, false, "") 134 135#undef AARCH64_OPT_EXTENSION 136