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/* Copyright (C) 2012-2018 Free Software Foundation, Inc.
Contributed by ARM Ltd.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* This is a list of ISA extentsions in AArch64.
Before using #include to read this file, define a macro:
AARCH64_OPT_EXTENSION(EXT_NAME, FLAG_CANONICAL, FLAGS_ON, FLAGS_OFF,
SYNTHETIC, FEATURE_STRING)
- EXT_NAME is the name of the extension, represented as a string constant.
- FLAGS_CANONICAL is the canonical internal name for this flag.
- FLAGS_ON are the bitwise-or of the features that enabling the extension
adds, or zero if enabling this extension has no effect on other features.
- FLAGS_OFF are the bitwise-or of the features that disabling the extension
removes, or zero if disabling this extension has no effect on other
features.
- SYNTHETIC is a boolean to indicate whether the option is a purely synthetic
grouping of options and that the option itself has no feature bit (e.g.
crypto). This is used to determine when sum of the individual options in
FLAGS_ON can be replaced by FLAG_CANONICAL in options minimization. If the
group is synthetic then they can be replaced when all options in FLAGS_ON
are enabled, otherwise they can only be replaced when
FLAGS_ON | FLAG_CANONICAL are enabled.
- FEAT_STRING is a string containing the entries in the 'Features' field of
/proc/cpuinfo on a GNU/Linux system that correspond to this architecture
extension being available. Sometimes multiple entries are needed to enable
the extension (for example, the 'crypto' extension depends on four
entries: aes, pmull, sha1, sha2 being present). In that case this field
should contain a space (" ") separated list of the strings in 'Features'
that are required. Their order is not important. An empty string means
do not detect this feature during auto detection. */
/* NOTE: This file is being parsed by config.gcc and so the
AARCH64_OPT_EXTENSION must adhere to a strict format:
1) No space between the AARCH64_OPT_EXTENSION and the opening (.
2) No space between the opening ( and the extension name.
3) No space after the extension name before the ,.
4) Spaces are only allowed after a , and around |.
5) Everything must be on one line. */
/* Enabling "fp" just enables "fp".
Disabling "fp" also disables "simd", "crypto", "fp16", "aes", "sha2",
"sha3", sm3/sm4 and "sve". */
AARCH64_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")
/* Enabling "simd" also enables "fp".
Disabling "simd" also disables "crypto", "dotprod", "aes", "sha2", "sha3",
"sm3/sm4" and "sve". */
AARCH64_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")
/* Enabling "crypto" also enables "fp", "simd", "aes" and "sha2".
Disabling "crypto" disables "crypto", "aes", "sha2", "sha3" and "sm3/sm4". */
AARCH64_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")
/* Enabling or disabling "crc" only changes "crc". */
AARCH64_OPT_EXTENSION("crc", AARCH64_FL_CRC, 0, 0, false, "crc32")
/* Enabling or disabling "lse" only changes "lse". */
AARCH64_OPT_EXTENSION("lse", AARCH64_FL_LSE, 0, 0, false, "atomics")
/* Enabling "fp16" also enables "fp".
Disabling "fp16" disables "fp16", "fp16fml" and "sve". */
AARCH64_OPT_EXTENSION("fp16", AARCH64_FL_F16, AARCH64_FL_FP, AARCH64_FL_F16FML | AARCH64_FL_SVE, false, "fphp asimdhp")
/* Enabling or disabling "rcpc" only changes "rcpc". */
AARCH64_OPT_EXTENSION("rcpc", AARCH64_FL_RCPC, 0, 0, false, "lrcpc")
/* Enabling "rdma" also enables "fp", "simd".
Disabling "rdma" just disables "rdma". */
AARCH64_OPT_EXTENSION("rdma", AARCH64_FL_RDMA, AARCH64_FL_FP | AARCH64_FL_SIMD, 0, false, "asimdrdm")
/* Enabling "dotprod" also enables "simd".
Disabling "dotprod" only disables "dotprod". */
AARCH64_OPT_EXTENSION("dotprod", AARCH64_FL_DOTPROD, AARCH64_FL_SIMD, 0, false, "asimddp")
/* Enabling "aes" also enables "simd".
Disabling "aes" just disables "aes". */
AARCH64_OPT_EXTENSION("aes", AARCH64_FL_AES, AARCH64_FL_SIMD, 0, false, "aes")
/* Enabling "sha2" also enables "simd".
Disabling "sha2" just disables "sha2". */
AARCH64_OPT_EXTENSION("sha2", AARCH64_FL_SHA2, AARCH64_FL_SIMD, 0, false, "sha1 sha2")
/* Enabling "sha3" enables "simd" and "sha2".
Disabling "sha3" just disables "sha3". */
AARCH64_OPT_EXTENSION("sha3", AARCH64_FL_SHA3, AARCH64_FL_SIMD | AARCH64_FL_SHA2, 0, false, "sha3 sha512")
/* Enabling "sm4" also enables "simd".
Disabling "sm4" just disables "sm4". */
AARCH64_OPT_EXTENSION("sm4", AARCH64_FL_SM4, AARCH64_FL_SIMD, 0, false, "sm3 sm4")
/* Enabling "fp16fml" also enables "fp" and "fp16".
Disabling "fp16fml" just disables "fp16fml". */
AARCH64_OPT_EXTENSION("fp16fml", AARCH64_FL_F16FML, AARCH64_FL_FP | AARCH64_FL_F16, 0, false, "asimdfml")
/* Enabling "sve" also enables "fp16", "fp" and "simd".
Disabling "sve" just disables "sve". */
AARCH64_OPT_EXTENSION("sve", AARCH64_FL_SVE, AARCH64_FL_FP | AARCH64_FL_SIMD | AARCH64_FL_F16, 0, false, "sve")
#undef AARCH64_OPT_EXTENSION
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