diff options
Diffstat (limited to 'gcc/real.h')
| -rw-r--r-- | gcc/real.h | 26 |
1 files changed, 22 insertions, 4 deletions
@@ -149,6 +149,7 @@ struct real_format /* Default rounding mode for operations on this format. */ bool round_towards_zero; + bool has_sign_dependent_rounding; /* Properties of the format. */ bool has_nans; @@ -171,15 +172,32 @@ extern const struct real_format * #define REAL_MODE_FORMAT(MODE) \ (real_format_for_mode[DECIMAL_FLOAT_MODE_P (MODE) \ - ? ((MODE - MIN_MODE_DECIMAL_FLOAT) \ + ? (((MODE) - MIN_MODE_DECIMAL_FLOAT) \ + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) \ - : (MODE - MIN_MODE_FLOAT)]) + : ((MODE) - MIN_MODE_FLOAT)]) + +#define FLOAT_MODE_FORMAT(MODE) \ + (REAL_MODE_FORMAT (SCALAR_FLOAT_MODE_P (MODE)? (MODE) \ + : GET_MODE_INNER (MODE))) /* The following macro determines whether the floating point format is composite, i.e. may contain non-consecutive mantissa bits, in which case compile-time FP overflow may not model run-time overflow. */ -#define REAL_MODE_FORMAT_COMPOSITE_P(MODE) \ - ((REAL_MODE_FORMAT(MODE))->pnan < (REAL_MODE_FORMAT (MODE))->p) +#define MODE_COMPOSITE_P(MODE) \ + (FLOAT_MODE_P (MODE) \ + && FLOAT_MODE_FORMAT (MODE)->pnan < FLOAT_MODE_FORMAT (MODE)->p) + +/* Accessor macros for format properties. */ +#define MODE_HAS_NANS(MODE) \ + (FLOAT_MODE_P (MODE) && FLOAT_MODE_FORMAT (MODE)->has_nans) +#define MODE_HAS_INFINITIES(MODE) \ + (FLOAT_MODE_P (MODE) && FLOAT_MODE_FORMAT (MODE)->has_inf) +#define MODE_HAS_SIGNED_ZEROS(MODE) \ + (FLOAT_MODE_P (MODE) && FLOAT_MODE_FORMAT (MODE)->has_signed_zero) +#define MODE_HAS_SIGN_DEPENDENT_ROUNDING(MODE) \ + (FLOAT_MODE_P (MODE) \ + && FLOAT_MODE_FORMAT (MODE)->has_sign_dependent_rounding) + /* Declare functions in real.c. */ |