diff options
Diffstat (limited to 'gcc/config/fp-bit.c')
| -rw-r--r-- | gcc/config/fp-bit.c | 96 |
1 files changed, 50 insertions, 46 deletions
diff --git a/gcc/config/fp-bit.c b/gcc/config/fp-bit.c index 4253577acdf..7ec20ecf9f2 100644 --- a/gcc/config/fp-bit.c +++ b/gcc/config/fp-bit.c @@ -46,7 +46,7 @@ Boston, MA 02111-1307, USA. */ #include "tconfig.h" #include "fp-bit.h" -/* The following macros can be defined to change the behaviour of this file: +/* The following macros can be defined to change the behavior of this file: FLOAT: Implement a `float', aka SFmode, fp library. If this is not defined, then this file implements a `double', aka DFmode, fp library. FLOAT_ONLY: Used with FLOAT, to implement a `float' only library, i.e. @@ -79,38 +79,42 @@ Boston, MA 02111-1307, USA. */ #endif #ifdef EXTENDED_FLOAT_STUBS -__truncxfsf2 (){ abort(); } -__extendsfxf2 (){ abort(); } -__addxf3 (){ abort(); } -__divxf3 (){ abort(); } -__eqxf2 (){ abort(); } -__extenddfxf2 (){ abort(); } -__gtxf2 (){ abort(); } -__lexf2 (){ abort(); } -__ltxf2 (){ abort(); } -__mulxf3 (){ abort(); } -__negxf2 (){ abort(); } -__nexf2 (){ abort(); } -__subxf3 (){ abort(); } -__truncxfdf2 (){ abort(); } - -__trunctfsf2 (){ abort(); } -__extendsftf2 (){ abort(); } -__addtf3 (){ abort(); } -__divtf3 (){ abort(); } -__eqtf2 (){ abort(); } -__extenddftf2 (){ abort(); } -__gttf2 (){ abort(); } -__letf2 (){ abort(); } -__lttf2 (){ abort(); } -__multf3 (){ abort(); } -__negtf2 (){ abort(); } -__netf2 (){ abort(); } -__subtf3 (){ abort(); } -__trunctfdf2 (){ abort(); } -__gexf2 (){ abort(); } -__fixxfsi (){ abort(); } -__floatsixf (){ abort(); } +extern void abort (void); +void __extendsfxf2 (void) { abort(); } +void __extenddfxf2 (void) { abort(); } +void __truncxfdf2 (void) { abort(); } +void __truncxfsf2 (void) { abort(); } +void __fixxfsi (void) { abort(); } +void __floatsixf (void) { abort(); } +void __addxf3 (void) { abort(); } +void __subxf3 (void) { abort(); } +void __mulxf3 (void) { abort(); } +void __divxf3 (void) { abort(); } +void __negxf2 (void) { abort(); } +void __eqxf2 (void) { abort(); } +void __nexf2 (void) { abort(); } +void __gtxf2 (void) { abort(); } +void __gexf2 (void) { abort(); } +void __lexf2 (void) { abort(); } +void __ltxf2 (void) { abort(); } + +void __extendsftf2 (void) { abort(); } +void __extenddftf2 (void) { abort(); } +void __trunctfdf2 (void) { abort(); } +void __trunctfsf2 (void) { abort(); } +void __fixtfsi (void) { abort(); } +void __floatsitf (void) { abort(); } +void __addtf3 (void) { abort(); } +void __subtf3 (void) { abort(); } +void __multf3 (void) { abort(); } +void __divtf3 (void) { abort(); } +void __negtf2 (void) { abort(); } +void __eqtf2 (void) { abort(); } +void __netf2 (void) { abort(); } +void __gttf2 (void) { abort(); } +void __getf2 (void) { abort(); } +void __letf2 (void) { abort(); } +void __lttf2 (void) { abort(); } #else /* !EXTENDED_FLOAT_STUBS, rest of file */ /* IEEE "special" number predicates */ @@ -136,7 +140,7 @@ INLINE static fp_number_type * nan (void) { - /* Discard the const qualifier... */ + /* Discard the const qualifier... */ #ifdef FLOAT return (fp_number_type *) (& __thenan_sf); #else @@ -373,7 +377,7 @@ unpack_d (FLO_union_type * src, fp_number_type * dst) } else { - /* Zero exponent with non zero fraction - it's denormalized, + /* Zero exponent with nonzero fraction - it's denormalized, so there isn't a leading implicit one - we'll shift it so it gets one. */ dst->normal_exp = exp - EXPBIAS + 1; @@ -400,7 +404,7 @@ unpack_d (FLO_union_type * src, fp_number_type * dst) } else { - /* Non zero fraction, means nan */ + /* Nonzero fraction, means nan */ if (fraction & QUIET_NAN) { dst->class = CLASS_QNAN; @@ -745,14 +749,14 @@ _fpmul_parts ( fp_number_type * a, high |= 1; low <<= 1; } - /* rounding is tricky. if we only round if it won't make us round later. */ + /* rounding is tricky. if we only round if it won't make us round later. */ #if 0 if (low & FRACHIGH2) { if (((high & GARDMASK) != GARDMSB) && (((high + 1) & GARDMASK) == GARDMSB)) { - /* don't round, it gets done again later. */ + /* don't round, it gets done again later. */ } else { @@ -920,7 +924,7 @@ int __fpcmp_parts (fp_number_type * a, fp_number_type * b) { #if 0 - /* either nan -> unordered. Must be checked outside of this routine. */ + /* either nan -> unordered. Must be checked outside of this routine. */ if (isnan (a) && isnan (b)) { return 1; /* still unordered! */ @@ -940,11 +944,11 @@ __fpcmp_parts (fp_number_type * a, fp_number_type * b) -------+--------+-------- -inf(1)| a>b(1) | a==b(0) -------+--------+-------- - So since unordered must be non zero, just line up the columns... + So since unordered must be nonzero, just line up the columns... */ return b->sign - a->sign; } - /* but not both... */ + /* but not both... */ if (isinf (a)) { return a->sign ? -1 : 1; @@ -965,7 +969,7 @@ __fpcmp_parts (fp_number_type * a, fp_number_type * b) { return a->sign ? -1 : 1; } - /* now both are "normal". */ + /* now both are "normal". */ if (a->sign != b->sign) { /* opposite signs */ @@ -980,7 +984,7 @@ __fpcmp_parts (fp_number_type * a, fp_number_type * b) { return a->sign ? 1 : -1; } - /* same exponents; check size. */ + /* same exponents; check size. */ if (a->fraction.ll > b->fraction.ll) { return a->sign ? -1 : 1; @@ -989,7 +993,7 @@ __fpcmp_parts (fp_number_type * a, fp_number_type * b) { return a->sign ? 1 : -1; } - /* after all that, they're equal. */ + /* after all that, they're equal. */ return 0; } #endif @@ -1246,7 +1250,7 @@ float_to_si (FLO_type arg_a) return 0; if (isnan (&a)) return 0; - /* get reasonable MAX_SI_INT... */ + /* get reasonable MAX_SI_INT... */ if (isinf (&a)) return a.sign ? (-MAX_SI_INT)-1 : MAX_SI_INT; /* it is a number, but a small one */ @@ -1283,7 +1287,7 @@ float_to_usi (FLO_type arg_a) /* it is a negative number */ if (a.sign) return 0; - /* get reasonable MAX_USI_INT... */ + /* get reasonable MAX_USI_INT... */ if (isinf (&a)) return MAX_USI_INT; /* it is a number, but a small one */ |