diff options
Diffstat (limited to 'gcc/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-cppbuiltin.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c index efb40c3..e201b05 100644 --- a/gcc/c-cppbuiltin.c +++ b/gcc/c-cppbuiltin.c @@ -317,6 +317,60 @@ builtin_define_decimal_float_constants (const char *name_prefix, builtin_define_with_value (name, buf, 0); } +/* Define fixed-point constants for TYPE using NAME_PREFIX and SUFFIX. */ + +static void +builtin_define_fixed_point_constants (const char *name_prefix, + const char *suffix, + tree type) +{ + char name[64], buf[256], *new_buf; + int i, mod; + + sprintf (name, "__%s_FBIT__", name_prefix); + builtin_define_with_int_value (name, TYPE_FBIT (type)); + + sprintf (name, "__%s_IBIT__", name_prefix); + builtin_define_with_int_value (name, TYPE_IBIT (type)); + + /* If there is no suffix, defines are for fixed-point modes. + We just return. */ + if (strcmp (suffix, "") == 0) + return; + + if (TYPE_UNSIGNED (type)) + { + sprintf (name, "__%s_MIN__", name_prefix); + sprintf (buf, "0.0%s", suffix); + builtin_define_with_value (name, buf, 0); + } + else + { + sprintf (name, "__%s_MIN__", name_prefix); + if (ALL_ACCUM_MODE_P (TYPE_MODE (type))) + sprintf (buf, "(-0X1P%d%s-0X1P%d%s)", TYPE_IBIT (type) - 1, suffix, + TYPE_IBIT (type) - 1, suffix); + else + sprintf (buf, "(-0.5%s-0.5%s)", suffix, suffix); + builtin_define_with_value (name, buf, 0); + } + + sprintf (name, "__%s_MAX__", name_prefix); + sprintf (buf, "0X"); + new_buf = buf + 2; + mod = (TYPE_FBIT (type) + TYPE_IBIT (type)) % 4; + if (mod) + sprintf (new_buf++, "%x", (1 << mod) - 1); + for (i = 0; i < (TYPE_FBIT (type) + TYPE_IBIT (type)) / 4; i++) + sprintf (new_buf++, "F"); + sprintf (new_buf, "P-%d%s", TYPE_FBIT (type), suffix); + builtin_define_with_value (name, buf, 0); + + sprintf (name, "__%s_EPSILON__", name_prefix); + sprintf (buf, "0x1P-%d%s", TYPE_FBIT (type), suffix); + builtin_define_with_value (name, buf, 0); +} + /* Define __GNUC__, __GNUC_MINOR__ and __GNUC_PATCHLEVEL__. */ static void define__GNUC__ (void) @@ -465,6 +519,62 @@ c_cpp_builtins (cpp_reader *pfile) builtin_define_decimal_float_constants ("DEC64", "DD", dfloat64_type_node); builtin_define_decimal_float_constants ("DEC128", "DL", dfloat128_type_node); + /* For fixed-point fibt, ibit, max, min, and epsilon. */ + if (targetm.fixed_point_supported_p ()) + { + builtin_define_fixed_point_constants ("SFRACT", "HR", + short_fract_type_node); + builtin_define_fixed_point_constants ("USFRACT", "UHR", + unsigned_short_fract_type_node); + builtin_define_fixed_point_constants ("FRACT", "R", + fract_type_node); + builtin_define_fixed_point_constants ("UFRACT", "UR", + unsigned_fract_type_node); + builtin_define_fixed_point_constants ("LFRACT", "LR", + long_fract_type_node); + builtin_define_fixed_point_constants ("ULFRACT", "ULR", + unsigned_long_fract_type_node); + builtin_define_fixed_point_constants ("LLFRACT", "LLR", + long_long_fract_type_node); + builtin_define_fixed_point_constants ("ULLFRACT", "ULLR", + unsigned_long_long_fract_type_node); + builtin_define_fixed_point_constants ("SACCUM", "HK", + short_accum_type_node); + builtin_define_fixed_point_constants ("USACCUM", "UHK", + unsigned_short_accum_type_node); + builtin_define_fixed_point_constants ("ACCUM", "K", + accum_type_node); + builtin_define_fixed_point_constants ("UACCUM", "UK", + unsigned_accum_type_node); + builtin_define_fixed_point_constants ("LACCUM", "LK", + long_accum_type_node); + builtin_define_fixed_point_constants ("ULACCUM", "ULK", + unsigned_long_accum_type_node); + builtin_define_fixed_point_constants ("LLACCUM", "LLK", + long_long_accum_type_node); + builtin_define_fixed_point_constants ("ULLACCUM", "ULLK", + unsigned_long_long_accum_type_node); + + builtin_define_fixed_point_constants ("QQ", "", qq_type_node); + builtin_define_fixed_point_constants ("HQ", "", hq_type_node); + builtin_define_fixed_point_constants ("SQ", "", sq_type_node); + builtin_define_fixed_point_constants ("DQ", "", dq_type_node); + builtin_define_fixed_point_constants ("TQ", "", tq_type_node); + builtin_define_fixed_point_constants ("UQQ", "", uqq_type_node); + builtin_define_fixed_point_constants ("UHQ", "", uhq_type_node); + builtin_define_fixed_point_constants ("USQ", "", usq_type_node); + builtin_define_fixed_point_constants ("UDQ", "", udq_type_node); + builtin_define_fixed_point_constants ("UTQ", "", utq_type_node); + builtin_define_fixed_point_constants ("HA", "", ha_type_node); + builtin_define_fixed_point_constants ("SA", "", sa_type_node); + builtin_define_fixed_point_constants ("DA", "", da_type_node); + builtin_define_fixed_point_constants ("TA", "", ta_type_node); + builtin_define_fixed_point_constants ("UHA", "", uha_type_node); + builtin_define_fixed_point_constants ("USA", "", usa_type_node); + builtin_define_fixed_point_constants ("UDA", "", uda_type_node); + builtin_define_fixed_point_constants ("UTA", "", uta_type_node); + } + /* For use in assembly language. */ builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0); builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0); |