diff options
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_ceil.c | 59 | ||||
| -rw-r--r-- | sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c | 52 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c | 2 | ||||
| -rw-r--r-- | sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/multiarch/s_ceil-c.c | 2 |
5 files changed, 21 insertions, 96 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_ceil.c b/sysdeps/ieee754/dbl-64/s_ceil.c index 4c96286..8d66f02 100644 --- a/sysdeps/ieee754/dbl-64/s_ceil.c +++ b/sysdeps/ieee754/dbl-64/s_ceil.c @@ -25,61 +25,38 @@ double __ceil (double x) { - int32_t i0, i1, j0; - uint32_t i, j; - EXTRACT_WORDS (i0, i1, x); - j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; - if (j0 < 20) + int64_t i0, i; + int32_t j0; + EXTRACT_WORDS64 (i0, x); + j0 = ((i0 >> 52) & 0x7ff) - 0x3ff; + if (j0 <= 51) { if (j0 < 0) { - /* return 0*sign(x) if |x|<1 */ + /* return 0 * sign(x) if |x| < 1 */ if (i0 < 0) - { - i0 = 0x80000000; i1 = 0; - } - else if ((i0 | i1) != 0) - { - i0 = 0x3ff00000; i1 = 0; - } + i0 = INT64_C (0x8000000000000000); + else if (i0 != 0) + i0 = INT64_C (0x3ff0000000000000); } else { - i = (0x000fffff) >> j0; - if (((i0 & i) | i1) == 0) - return x; /* x is integral */ + i = INT64_C (0x000fffffffffffff) >> j0; + if ((i0 & i) == 0) + return x; /* x is integral */ if (i0 > 0) - i0 += (0x00100000) >> j0; - i0 &= (~i); i1 = 0; + i0 += UINT64_C (0x0010000000000000) >> j0; + i0 &= ~i; } } - else if (j0 > 51) + else { if (j0 == 0x400) - return x + x; /* inf or NaN */ + return x + x; /* inf or NaN */ else - return x; /* x is integral */ - } - else - { - i = ((uint32_t) (0xffffffff)) >> (j0 - 20); - if ((i1 & i) == 0) - return x; /* x is integral */ - if (i0 > 0) - { - if (j0 == 20) - i0 += 1; - else - { - j = i1 + (1 << (52 - j0)); - if (j < i1) - i0 += 1; /* got a carry */ - i1 = j; - } - } - i1 &= (~i); + return x; /* x is integral */ } - INSERT_WORDS (x, i0, i1); + INSERT_WORDS64 (x, i0); return x; } #ifndef __ceil diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c deleted file mode 100644 index 4bb93d0..0000000 --- a/sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c +++ /dev/null @@ -1,52 +0,0 @@ -/* @(#)s_ceil.c 5.1 93/09/24 */ -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -/* - * ceil(x) - * Return x rounded toward -inf to integral value - * Method: - * Bit twiddling. - */ - -#define NO_MATH_REDIRECT -#include <math.h> -#include <math_private.h> -#include <libm-alias-double.h> - -double -__ceil(double x) -{ - int64_t i0,i; - int32_t j0; - EXTRACT_WORDS64(i0,x); - j0 = ((i0>>52)&0x7ff)-0x3ff; - if(j0<=51) { - if(j0<0) { - /* return 0*sign(x) if |x|<1 */ - if(i0<0) {i0=INT64_C(0x8000000000000000);} - else if(i0!=0) { i0=INT64_C(0x3ff0000000000000);} - } else { - i = INT64_C(0x000fffffffffffff)>>j0; - if((i0&i)==0) return x; /* x is integral */ - if(i0>0) i0 += UINT64_C(0x0010000000000000)>>j0; - i0 &= (~i); - } - } else { - if(j0==0x400) return x+x; /* inf or NaN */ - else return x; /* x is integral */ - } - INSERT_WORDS64(x,i0); - return x; -} -#ifndef __ceil -libm_alias_double (__ceil, ceil) -#endif diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c index febea74..80f68b6 100644 --- a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c +++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-generic.c @@ -1,2 +1,2 @@ #define __ceil __ceil_generic -#include <sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c> +#include <sysdeps/ieee754/dbl-64/s_ceil.c> diff --git a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c index 9c17809..2b89199 100644 --- a/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c +++ b/sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.c @@ -20,4 +20,4 @@ #define __ceil __ceil_vis3 -#include <sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c> +#include <sysdeps/ieee754/dbl-64/s_ceil.c> diff --git a/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c b/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c index 6a5ea3f..ada28ba 100644 --- a/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c +++ b/sysdeps/x86_64/fpu/multiarch/s_ceil-c.c @@ -1,2 +1,2 @@ #define __ceil __ceil_c -#include <sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c> +#include <sysdeps/ieee754/dbl-64/s_ceil.c> |