Mercurial > hg > CbC > CbC_gcc
view gcc/config/aarch64/aarch64-tuning-flags.def @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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/* Copyright (C) 2015-2017 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/>. */ /* Additional control over certain tuning parameters. Before including this file, define a macro: AARCH64_EXTRA_TUNING_OPTION (name, internal_name) Where: NAME is a string giving a friendly name for the tuning flag. INTERNAL_NAME gives the internal name suitable for appending to AARCH64_TUNE_ to give an enum name. */ AARCH64_EXTRA_TUNING_OPTION ("rename_fma_regs", RENAME_FMA_REGS) /* Don't create non-8 byte aligned load/store pair. That is if the two load/stores are not at least 8 byte aligned don't create load/store pairs. */ AARCH64_EXTRA_TUNING_OPTION ("slow_unaligned_ldpw", SLOW_UNALIGNED_LDPW) /* Some of the optional shift to some arthematic instructions are considered cheap. Logical shift left <=4 with or without a zero extend are considered cheap. Sign extend; non logical shift left are not considered cheap. */ AARCH64_EXTRA_TUNING_OPTION ("cheap_shift_extend", CHEAP_SHIFT_EXTEND) #undef AARCH64_EXTRA_TUNING_OPTION