1/* Copyright (C) 2015-2018 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
8   by the Free Software Foundation; either version 3, or (at your
9   option) any later version.
10
11   GCC is distributed in the hope that it will be useful, but WITHOUT
12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
14   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/* Additional control over certain tuning parameters.  Before including
21   this file, define a macro:
22
23     AARCH64_EXTRA_TUNING_OPTION (name, internal_name)
24
25   Where:
26
27     NAME is a string giving a friendly name for the tuning flag.
28     INTERNAL_NAME gives the internal name suitable for appending to
29     AARCH64_TUNE_ to give an enum name. */
30
31AARCH64_EXTRA_TUNING_OPTION ("rename_fma_regs", RENAME_FMA_REGS)
32
33/* Don't create non-8 byte aligned load/store pair.  That is if the
34two load/stores are not at least 8 byte aligned don't create load/store
35pairs.   */
36AARCH64_EXTRA_TUNING_OPTION ("slow_unaligned_ldpw", SLOW_UNALIGNED_LDPW)
37
38/* Some of the optional shift to some arthematic instructions are
39   considered cheap.  Logical shift left <=4 with or without a
40   zero extend are considered cheap.  Sign extend; non logical shift left
41   are not considered cheap.  */
42AARCH64_EXTRA_TUNING_OPTION ("cheap_shift_extend", CHEAP_SHIFT_EXTEND)
43
44#undef AARCH64_EXTRA_TUNING_OPTION
45