diff options
Diffstat (limited to 'gcc/c-family/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-family/c-cppbuiltin.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/c-family/c-cppbuiltin.c b/gcc/c-family/c-cppbuiltin.c index 8856a97..d35b087 100644 --- a/gcc/c-family/c-cppbuiltin.c +++ b/gcc/c-family/c-cppbuiltin.c @@ -317,6 +317,16 @@ builtin_define_float_constants (const char *name_prefix, sprintf (name, "__FP_FAST_FMA%s", fma_suffix); builtin_define_with_int_value (name, 1); } + + /* For C2x *_IS_IEC_60559. 0 means the type does not match an IEC + 60559 format, 1 that it matches a format but not operations and 2 + that it matches a format and operations (but may not conform to + Annex F; we take this as meaning exceptions and rounding modes + need not be supported). */ + sprintf (name, "__%s_IS_IEC_60559__", name_prefix); + builtin_define_with_int_value (name, + (fmt->ieee_bits == 0 + ? 0 : (fmt->round_towards_zero ? 1 : 2))); } /* Define __DECx__ constants for TYPE using NAME_PREFIX and SUFFIX. */ |