1 /* Common hooks for Tensilica's Xtensa architecture.
2 Copyright (C) 2001-2022 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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/>. */
22 #include "coretypes.h"
24 #include "common/common-target.h"
25 #include "common/common-target-def.h"
27 /* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */
29 static const struct default_options xtensa_option_optimization_table
[] =
31 /* Reordering blocks for Xtensa is not a good idea unless the
32 compiler understands the range of conditional branches.
33 Currently all branch relaxation for Xtensa is handled in the
34 assembler, so GCC cannot do a good job of reordering blocks.
35 Do not enable reordering unless it is explicitly requested. */
36 { OPT_LEVELS_ALL
, OPT_freorder_blocks
, NULL
, 0 },
37 /* Split multi-word types early (pre-GCC10 behavior). */
38 { OPT_LEVELS_ALL
, OPT_fsplit_wide_types_early
, NULL
, 1 },
39 { OPT_LEVELS_NONE
, 0, NULL
, 0 }
42 #undef TARGET_DEFAULT_TARGET_FLAGS
43 #define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT)
44 #undef TARGET_OPTION_OPTIMIZATION_TABLE
45 #define TARGET_OPTION_OPTIMIZATION_TABLE xtensa_option_optimization_table
47 struct gcc_targetm_common targetm_common
= TARGETM_COMMON_INITIALIZER
;