diff options
Diffstat (limited to 'gcc/common/config/v850/v850-common.c')
| -rw-r--r-- | gcc/common/config/v850/v850-common.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/gcc/common/config/v850/v850-common.c b/gcc/common/config/v850/v850-common.c new file mode 100644 index 00000000000..0e2d81760ea --- /dev/null +++ b/gcc/common/config/v850/v850-common.c @@ -0,0 +1,133 @@ +/* Common hooks for NEC V850 series. + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, + 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. + + 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" + +/* Information about the various small memory areas. */ +static const int small_memory_physical_max[(int) SMALL_MEMORY_max] = +{ + 256, + 65536, + 32768, +}; + +/* Set the maximum size of small memory area TYPE to the value given + by SIZE in structure OPTS (option text OPT passed at location LOC). */ + +static void +v850_handle_memory_option (enum small_memory_type type, + struct gcc_options *opts, const char *opt, + int size, location_t loc) +{ + if (size > small_memory_physical_max[type]) + error_at (loc, "value passed in %qs is too large", opt); + else + opts->x_small_memory_max[type] = size; +} + +/* Implement TARGET_HANDLE_OPTION. */ + +static bool +v850_handle_option (struct gcc_options *opts, + 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_mspace: + opts->x_target_flags |= MASK_EP | MASK_PROLOG_FUNCTION; + return true; + + case OPT_mv850: + opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850); + return true; + + case OPT_mv850e: + case OPT_mv850e1: + case OPT_mv850es: + opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850E); + return true; + + case OPT_mv850e2: + opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850E2); + return true; + + case OPT_mv850e2v3: + opts->x_target_flags &= ~(MASK_CPU ^ MASK_V850E2V3); + return true; + + case OPT_mtda_: + v850_handle_memory_option (SMALL_MEMORY_TDA, opts, + decoded->orig_option_with_args_text, + value, loc); + return true; + + case OPT_msda_: + v850_handle_memory_option (SMALL_MEMORY_SDA, opts, + decoded->orig_option_with_args_text, + value, loc); + return true; + + case OPT_mzda_: + v850_handle_memory_option (SMALL_MEMORY_ZDA, opts, + decoded->orig_option_with_args_text, + value, loc); + return true; + + default: + return true; + } +} + +/* Implement TARGET_OPTION_OPTIMIZATION_TABLE. */ + +static const struct default_options v850_option_optimization_table[] = + { + { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, + /* Note - we no longer enable MASK_EP when optimizing. This is + because of a hardware bug which stops the SLD and SST instructions + from correctly detecting some hazards. If the user is sure that + their hardware is fixed or that their program will not encounter + the conditions that trigger the bug then they can enable -mep by + hand. */ + { OPT_LEVELS_1_PLUS, OPT_mprolog_function, NULL, 1 }, + { OPT_LEVELS_NONE, 0, NULL, 0 } + }; + +#undef TARGET_DEFAULT_TARGET_FLAGS +#define TARGET_DEFAULT_TARGET_FLAGS (MASK_DEFAULT | MASK_APP_REGS) +#undef TARGET_HANDLE_OPTION +#define TARGET_HANDLE_OPTION v850_handle_option +#undef TARGET_OPTION_OPTIMIZATION_TABLE +#define TARGET_OPTION_OPTIMIZATION_TABLE v850_option_optimization_table + +struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; |