diff options
| -rw-r--r-- | ChangeLog | 18 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_floor.c | 10 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c | 9 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_floorf.c | 9 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_floorl.c | 37 |
5 files changed, 38 insertions, 45 deletions
diff --git a/ChangeLog b/ChangeLog index b074f4d980..7837544563 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,6 +1,24 @@ 2016-05-24 Joseph Myers <joseph@codesourcery.com> [BZ #15479] + * sysdeps/ieee754/dbl-64/s_floor.c: Do not mention "inexact" + exception in comment. + (huge): Remove variable. + (__floor): Do not force "inexact" exception. + * sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c: Do not mention + "inexact" exception in comment. + (huge): Remove variable. + (__floor): Do not force "inexact" exception. + * sysdeps/ieee754/flt-32/s_floorf.c: Do not mention "inexact" + exception in comment. + (huge): Remove variable. + (__floorf): Do not force "inexact" exception. + * sysdeps/ieee754/ldbl-128/s_floorl.c: Do not mention "inexact" + exception in comment. + (huge): Remove variable. + (__floorl): Do not force "inexact" exception. + + [BZ #15479] * sysdeps/ieee754/dbl-64/s_ceil.c: Do not mention "inexact" exception in comment. (huge): Remove variable. diff --git a/sysdeps/ieee754/dbl-64/s_floor.c b/sysdeps/ieee754/dbl-64/s_floor.c index bd6afa72e8..8f86aa31ee 100644 --- a/sysdeps/ieee754/dbl-64/s_floor.c +++ b/sysdeps/ieee754/dbl-64/s_floor.c @@ -15,15 +15,11 @@ * Return x rounded toward -inf to integral value * Method: * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to floor(x). */ #include <math.h> #include <math_private.h> -static const double huge = 1.0e300; - double __floor (double x) { @@ -33,9 +29,9 @@ __floor (double x) j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; if (j0 < 20) { - if (j0 < 0) /* raise inexact if x != 0 */ + if (j0 < 0) { - math_force_eval (huge + x); /* return 0*sign(x) if |x|<1 */ + /* return 0*sign(x) if |x|<1 */ if (i0 >= 0) { i0 = i1 = 0; @@ -50,7 +46,6 @@ __floor (double x) i = (0x000fffff) >> j0; if (((i0 & i) | i1) == 0) return x; /* x is integral */ - math_force_eval (huge + x); /* raise inexact flag */ if (i0 < 0) i0 += (0x00100000) >> j0; i0 &= (~i); i1 = 0; @@ -68,7 +63,6 @@ __floor (double x) i = ((u_int32_t) (0xffffffff)) >> (j0 - 20); if ((i1 & i) == 0) return x; /* x is integral */ - math_force_eval (huge + x); /* raise inexact flag */ if (i0 < 0) { if (j0 == 20) diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c index b7ed14bfa2..8d514f23bc 100644 --- a/sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c +++ b/sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c @@ -39,12 +39,8 @@ * Return x rounded toward -inf to integral value * Method: * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to floor(x). */ -static const double huge = 1.0e300; - double __floor (double x) @@ -53,15 +49,14 @@ __floor (double x) EXTRACT_WORDS64(i0,x); int32_t j0 = ((i0>>52)&0x7ff)-0x3ff; if(__builtin_expect(j0<52, 1)) { - if(j0<0) { /* raise inexact if x != 0 */ - math_force_eval(huge+x);/* return 0*sign(x) if |x|<1 */ + if(j0<0) { + /* return 0*sign(x) if |x|<1 */ if(i0>=0) {i0=0;} else if((i0&0x7fffffffffffffffl)!=0) { i0=0xbff0000000000000l;} } else { uint64_t i = (0x000fffffffffffffl)>>j0; if((i0&i)==0) return x; /* x is integral */ - math_force_eval(huge+x); /* raise inexact flag */ if(i0<0) i0 += (0x0010000000000000l)>>j0; i0 &= (~i); } diff --git a/sysdeps/ieee754/flt-32/s_floorf.c b/sysdeps/ieee754/flt-32/s_floorf.c index 99d6c01833..69160e5e10 100644 --- a/sysdeps/ieee754/flt-32/s_floorf.c +++ b/sysdeps/ieee754/flt-32/s_floorf.c @@ -18,15 +18,11 @@ * Return x rounded toward -inf to integral value * Method: * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to floorf(x). */ #include <math.h> #include <math_private.h> -static const float huge = 1.0e30; - float __floorf(float x) { @@ -35,15 +31,14 @@ __floorf(float x) GET_FLOAT_WORD(i0,x); j0 = ((i0>>23)&0xff)-0x7f; if(j0<23) { - if(j0<0) { /* raise inexact if x != 0 */ - math_force_eval(huge+x);/* return 0*sign(x) if |x|<1 */ + if(j0<0) { + /* return 0*sign(x) if |x|<1 */ if(i0>=0) {i0=0;} else if((i0&0x7fffffff)!=0) { i0=0xbf800000;} } else { i = (0x007fffff)>>j0; if((i0&i)==0) return x; /* x is integral */ - math_force_eval(huge+x); /* raise inexact flag */ if(i0<0) i0 += (0x00800000)>>j0; i0 &= (~i); } diff --git a/sysdeps/ieee754/ldbl-128/s_floorl.c b/sysdeps/ieee754/ldbl-128/s_floorl.c index c72d5d4330..14a0efef85 100644 --- a/sysdeps/ieee754/ldbl-128/s_floorl.c +++ b/sysdeps/ieee754/ldbl-128/s_floorl.c @@ -22,15 +22,11 @@ static char rcsid[] = "$NetBSD: $"; * Return x rounded toward -inf to integral value * Method: * Bit twiddling. - * Exception: - * Inexact flag raised if x not equal to floor(x). */ #include <math.h> #include <math_private.h> -static const long double huge = 1.0e4930L; - long double __floorl(long double x) { int64_t i0,i1,j0; @@ -38,19 +34,16 @@ long double __floorl(long double x) GET_LDOUBLE_WORDS64(i0,i1,x); j0 = ((i0>>48)&0x7fff)-0x3fff; if(j0<48) { - if(j0<0) { /* raise inexact if x != 0 */ - if(huge+x>0.0) {/* return 0*sign(x) if |x|<1 */ - if(i0>=0) {i0=i1=0;} - else if(((i0&0x7fffffffffffffffLL)|i1)!=0) - { i0=0xbfff000000000000ULL;i1=0;} - } + if(j0<0) { + /* return 0*sign(x) if |x|<1 */ + if(i0>=0) {i0=i1=0;} + else if(((i0&0x7fffffffffffffffLL)|i1)!=0) + { i0=0xbfff000000000000ULL;i1=0;} } else { i = (0x0000ffffffffffffULL)>>j0; if(((i0&i)|i1)==0) return x; /* x is integral */ - if(huge+x>0.0) { /* raise inexact flag */ - if(i0<0) i0 += (0x0001000000000000LL)>>j0; - i0 &= (~i); i1=0; - } + if(i0<0) i0 += (0x0001000000000000LL)>>j0; + i0 &= (~i); i1=0; } } else if (j0>111) { if(j0==0x4000) return x+x; /* inf or NaN */ @@ -58,17 +51,15 @@ long double __floorl(long double x) } else { i = -1ULL>>(j0-48); if((i1&i)==0) return x; /* x is integral */ - if(huge+x>0.0) { /* raise inexact flag */ - if(i0<0) { - if(j0==48) i0+=1; - else { - j = i1+(1LL<<(112-j0)); - if(j<i1) i0 +=1 ; /* got a carry */ - i1=j; - } + if(i0<0) { + if(j0==48) i0+=1; + else { + j = i1+(1LL<<(112-j0)); + if(j<i1) i0 +=1 ; /* got a carry */ + i1=j; } - i1 &= (~i); } + i1 &= (~i); } SET_LDOUBLE_WORDS64(x,i0,i1); return x; |