#ifndef GCC_REAL_H
#define GCC_REAL_H
+#include <gmp.h>
+#include <mpfr.h>
#include "machmode.h"
/* An expanded form of the represented number. */
};
#define SIGNIFICAND_BITS (128 + HOST_BITS_PER_LONG)
-#define EXP_BITS (32 - 5)
+#define EXP_BITS (32 - 6)
#define MAX_EXP ((1 << (EXP_BITS - 1)) - 1)
#define SIGSZ (SIGNIFICAND_BITS / HOST_BITS_PER_LONG)
#define SIG_MSB ((unsigned long)1 << (HOST_BITS_PER_LONG - 1))
sure they're packed together, otherwise REAL_VALUE_TYPE_SIZE will
be miscomputed. */
unsigned int /* ENUM_BITFIELD (real_value_class) */ cl : 2;
+ unsigned int decimal : 1;
unsigned int sign : 1;
unsigned int signalling : 1;
unsigned int canonical : 1;
bool has_denorm;
bool has_signed_zero;
bool qnan_msb_set;
+ bool canonical_nan_lsbs_set;
};
-/* The target format used for each floating floating point mode.
- Indexed by MODE - QFmode. */
+/* The target format used for each floating point mode.
+ Float modes are followed by decimal float modes, with entries for
+ float modes indexed by (MODE - first float mode), and entries for
+ decimal float modes indexed by (MODE - first decimal float mode) +
+ the number of float modes. */
extern const struct real_format *
- real_format_for_mode[MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1];
+ real_format_for_mode[MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1
+ + MAX_MODE_DECIMAL_FLOAT - MIN_MODE_DECIMAL_FLOAT + 1];
-#define REAL_MODE_FORMAT(MODE) (real_format_for_mode[(MODE) - MIN_MODE_FLOAT])
+#define REAL_MODE_FORMAT(MODE) \
+ (real_format_for_mode[DECIMAL_FLOAT_MODE_P (MODE) \
+ ? ((MODE - MIN_MODE_DECIMAL_FLOAT) \
+ + (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) \
+ : (MODE - MIN_MODE_FLOAT)])
/* The following macro determines whether the floating point format is
composite, i.e. may contain non-consecutive mantissa bits, in which
/* Initialize R from a decimal or hexadecimal string. */
extern void real_from_string (REAL_VALUE_TYPE *, const char *);
+/* Wrapper to allow different internal representation for decimal floats. */
+extern void real_from_string3 (REAL_VALUE_TYPE *, const char *, enum machine_mode);
/* Initialize R from an integer pair HIGH/LOW. */
extern void real_from_integer (REAL_VALUE_TYPE *, enum machine_mode,
/* Target formats defined in real.c. */
extern const struct real_format ieee_single_format;
extern const struct real_format mips_single_format;
+extern const struct real_format coldfire_single_format;
extern const struct real_format ieee_double_format;
extern const struct real_format mips_double_format;
+extern const struct real_format coldfire_double_format;
extern const struct real_format ieee_extended_motorola_format;
extern const struct real_format ieee_extended_intel_96_format;
extern const struct real_format ieee_extended_intel_96_round_53_format;
extern const struct real_format c4x_single_format;
extern const struct real_format c4x_extended_format;
extern const struct real_format real_internal_format;
+extern const struct real_format decimal_single_format;
+extern const struct real_format decimal_double_format;
+extern const struct real_format decimal_quad_format;
/* ====================================================================== */
#define REAL_VALUE_FROM_UNSIGNED_INT(r, lo, hi, mode) \
real_from_integer (&(r), mode, lo, hi, 1)
+/* Real values to IEEE 754R decimal floats. */
+
+/* IN is a REAL_VALUE_TYPE. OUT is an array of longs. */
+#define REAL_VALUE_TO_TARGET_DECIMAL128(IN, OUT) \
+ real_to_target (OUT, &(IN), mode_for_size (128, MODE_DECIMAL_FLOAT, 0))
+
+#define REAL_VALUE_TO_TARGET_DECIMAL64(IN, OUT) \
+ real_to_target (OUT, &(IN), mode_for_size (64, MODE_DECIMAL_FLOAT, 0))
+
+/* IN is a REAL_VALUE_TYPE. OUT is a long. */
+#define REAL_VALUE_TO_TARGET_DECIMAL32(IN, OUT) \
+ ((OUT) = real_to_target (NULL, &(IN), mode_for_size (32, MODE_DECIMAL_FLOAT, 0)))
+
extern REAL_VALUE_TYPE real_value_truncate (enum machine_mode,
REAL_VALUE_TYPE);
extern REAL_VALUE_TYPE dconstm2;
extern REAL_VALUE_TYPE dconsthalf;
extern REAL_VALUE_TYPE dconstthird;
-extern REAL_VALUE_TYPE dconstpi;
+extern REAL_VALUE_TYPE dconstsqrt2;
extern REAL_VALUE_TYPE dconste;
/* Function to return a real value (not a tree node)
/* Given a CONST_DOUBLE in FROM, store into TO the value it represents. */
#define REAL_VALUE_FROM_CONST_DOUBLE(to, from) \
- memcpy (&(to), &CONST_DOUBLE_LOW ((from)), sizeof (REAL_VALUE_TYPE))
+ ((to) = *CONST_DOUBLE_REAL_VALUE (from))
/* Return a CONST_DOUBLE with value R and mode M. */
#define CONST_DOUBLE_FROM_REAL_VALUE(r, m) \
/* Set the sign of R to the sign of X. */
extern void real_copysign (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *);
+/* Convert between MPFR and REAL_VALUE_TYPE. The caller is
+ responsible for initializing and clearing the MPFR parameter. */
+
+extern void real_from_mpfr (REAL_VALUE_TYPE *, mpfr_srcptr);
+extern void mpfr_from_real (mpfr_ptr, const REAL_VALUE_TYPE *);
+
+/* Check whether the real constant value given is an integer. */
+extern bool real_isinteger (const REAL_VALUE_TYPE *c, enum machine_mode mode);
+
#endif /* ! GCC_REAL_H */