/usr/lib/gcc-cross/aarch64-linux-gnu/7/plugin/include/config/aarch64/aarch64-tuning-flags.def is in gcc-7-plugin-dev-aarch64-linux-gnu 7.3.0-16ubuntu3cross1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | /* 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
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