diff options
Diffstat (limited to 'gcc-4.9/gcc/common/config/nds32/nds32-common.c')
| -rw-r--r-- | gcc-4.9/gcc/common/config/nds32/nds32-common.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/common/config/nds32/nds32-common.c b/gcc-4.9/gcc/common/config/nds32/nds32-common.c new file mode 100644 index 000000000..7d9bf6704 --- /dev/null +++ b/gcc-4.9/gcc/common/config/nds32/nds32-common.c @@ -0,0 +1,126 @@ +/* Common hooks of Andes NDS32 cpu for GNU compiler + Copyright (C) 2012-2014 Free Software Foundation, Inc. + Contributed by Andes Technology Corporation. + + 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/>. */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "diagnostic-core.h" +#include "tm.h" +#include "common/common-target.h" +#include "common/common-target-def.h" +#include "opts.h" +#include "flags.h" + +/* ------------------------------------------------------------------------ */ + +/* Implement TARGET_HANDLE_OPTION. */ +static bool +nds32_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED, + struct gcc_options *opts_set ATTRIBUTE_UNUSED, + const struct cl_decoded_option *decoded, + location_t loc) +{ + size_t code = decoded->opt_index; + int value = decoded->value; + + switch (code) + { + case OPT_misr_vector_size_: + /* Check the valid vector size: 4 or 16. */ + if (value != 4 && value != 16) + { + error_at (loc, "for the option -misr-vector-size=X, the valid X " + "must be: 4 or 16"); + return false; + } + + return true; + + case OPT_mcache_block_size_: + /* Check valid value: 4 8 16 32 64 128 256 512. */ + if (exact_log2 (value) < 2 || exact_log2 (value) > 9) + { + error_at (loc, "for the option -mcache-block-size=X, the valid X " + "must be: 4, 8, 16, 32, 64, 128, 256, or 512"); + return false; + } + + return true; + + default: + return true; + } +} + +/* ------------------------------------------------------------------------ */ + +/* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ +static const struct default_options nds32_option_optimization_table[] = +{ + /* Enable -fomit-frame-pointer by default at -O1 or higher. */ + { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, + /* Enable -mv3push by default at -Os, but it is useless under V2 ISA. */ + { OPT_LEVELS_SIZE, OPT_mv3push, NULL, 1 }, + + { OPT_LEVELS_NONE, 0, NULL, 0 } +}; + +/* ------------------------------------------------------------------------ */ + +/* Run-time Target Specification. */ + +/* The default target flags consist of + TARGET_CPU_DEFAULT and other MASK_XXX flags. + + The value of TARGET_CPU_DEFAULT is set by + the process of 'configure' and 'make' stage. + Please check gcc/config.gcc for more implementation detail. + + Other MASK_XXX flags are set individually. + By default we enable + TARGET_GP_DIRECT: Generate gp-imply instruction. + TARGET_16_BIT : Generate 16/32 bit mixed length instruction. + TARGET_PERF_EXT : Generate performance extention instrcution. + TARGET_CMOV : Generate conditional move instruction. */ +#undef TARGET_DEFAULT_TARGET_FLAGS +#define TARGET_DEFAULT_TARGET_FLAGS \ + (TARGET_CPU_DEFAULT \ + | MASK_GP_DIRECT \ + | MASK_16_BIT \ + | MASK_PERF_EXT \ + | MASK_CMOV) + +#undef TARGET_HANDLE_OPTION +#define TARGET_HANDLE_OPTION nds32_handle_option + +#undef TARGET_OPTION_OPTIMIZATION_TABLE +#define TARGET_OPTION_OPTIMIZATION_TABLE nds32_option_optimization_table + + +/* Defining the Output Assembler Language. */ + +#undef TARGET_EXCEPT_UNWIND_INFO +#define TARGET_EXCEPT_UNWIND_INFO sjlj_except_unwind_info + +/* ------------------------------------------------------------------------ */ + +struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; + +/* ------------------------------------------------------------------------ */ |