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47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/* Common hooks for Tensilica's Xtensa architecture.
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Copyright (C) 2001-2013 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "common/common-target.h"
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#include "common/common-target-def.h"
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/* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */
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static const struct default_options xtensa_option_optimization_table[] =
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{
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{ OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
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/* Reordering blocks for Xtensa is not a good idea unless the
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compiler understands the range of conditional branches.
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Currently all branch relaxation for Xtensa is handled in the
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assembler, so GCC cannot do a good job of reordering blocks.
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Do not enable reordering unless it is explicitly requested. */
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{ OPT_LEVELS_ALL, OPT_freorder_blocks, NULL, 0 },
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{ OPT_LEVELS_NONE, 0, NULL, 0 }
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};
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#undef TARGET_DEFAULT_TARGET_FLAGS
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#define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT)
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#undef TARGET_OPTION_OPTIMIZATION_TABLE
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#define TARGET_OPTION_OPTIMIZATION_TABLE xtensa_option_optimization_table
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struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
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