mirrors/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-24 18:23:41 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

* sysdeps/ieee754/ldbl-128ibm/k_cosl.c (__kernel_cosl): Correct index

Browse Source 
for __sincosl_table.
	* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c (__kernel_sincosl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/k_sinl.c (__kernel_sinl): Likewise.

	* sysdeps/ieee754/ldbl-128ibm/s_ceill.c: Correct sign of 0.0.
	* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise.

	* sysdeps/ieee754/ldbl-128ibm/s_cprojl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_ctanhl.c: New file.
	* sysdeps/ieee754/ldbl-128ibm/s_ctanl.c: New file.
This commit is contained in:
Roland McGrath 2006-01-31 18:56:42 +00:00
parent 27d7e3b54c
commit 16f0ecedb5
9 changed files with 328 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
ChangeLog
View File

@ -1,3 +1,17 @@
2006-01-30 Steven Munroe <sjmunroe@us.ibm.com>
* sysdeps/ieee754/ldbl-128ibm/k_cosl.c (__kernel_cosl): Correct index
for __sincosl_table.
* sysdeps/ieee754/ldbl-128ibm/k_sincosl.c (__kernel_sincosl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/k_sinl.c (__kernel_sinl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_ceill.c: Correct sign of 0.0.
* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_cprojl.c: New file.
* sysdeps/ieee754/ldbl-128ibm/s_ctanhl.c: New file.
* sysdeps/ieee754/ldbl-128ibm/s_ctanl.c: New file.
2006-01-29 Daniel Jacobowitz <dan@codesourcery.com>
* sysdeps/unix/sysv/linux/mips/bits/errno.h (ECANCELED,

20
sysdeps/ieee754/ldbl-128ibm/k_cosl.c
View File

@ -104,6 +104,24 @@ __kernel_cosl(long double x, long double y)
pre-computed tables, compute cosl(l) and sinl(l) using a
Chebyshev polynomial of degree 10(11) and compute
cosl(h+l) = cosl(h)cosl(l) - sinl(h)sinl(l). */
int six = tix;
tix = ((six - 0x3ff00000) >> 4) + 0x3fff0000;
index = 0x3ffe - (tix >> 16);
hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
x = fabsl (x);
switch (index)
{
case 0: index = ((45 << 10) + hix - 0x3ffe0000) >> 8; break;
case 1: index = ((13 << 11) + hix - 0x3ffd0000) >> 9; break;
default:
case 2: index = (hix - 0x3ffc3000) >> 10; break;
}
hix = (hix << 4) & 0x3fffffff;
/*
The following should work for double but generates the wrong index.
For now the code above converts double to ieee extended to compute
the index back to double for the h value.
index = 0x3fe - (tix >> 20);
hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
x = fabsl (x);
@ -114,7 +132,7 @@ __kernel_cosl(long double x, long double y)
default:
case 2: index = (hix - 0x3fc30000) >> 14; break;
}
*/
SET_LDOUBLE_WORDS64(h, ((u_int64_t)hix) << 32, 0);
l = y - (h - x);
z = l * l;

21
sysdeps/ieee754/ldbl-128ibm/k_sincosl.c
View File

@ -131,6 +131,25 @@ __kernel_sincosl(long double x, long double y, long double *sinx, long double *c
Chebyshev polynomial of degree 10(11) and compute
sinl(h+l) = sinl(h)cosl(l) + cosl(h)sinl(l) and
cosl(h+l) = cosl(h)cosl(l) - sinl(h)sinl(l). */
int six = tix;
tix = ((six - 0x3ff00000) >> 4) + 0x3fff0000;
index = 0x3ffe - (tix >> 16);
hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
x = fabsl (x);
switch (index)
{
case 0: index = ((45 << 10) + hix - 0x3ffe0000) >> 8; break;
case 1: index = ((13 << 11) + hix - 0x3ffd0000) >> 9; break;
default:
case 2: index = (hix - 0x3ffc3000) >> 10; break;
}
hix = (hix << 4) & 0x3fffffff;
/*
The following should work for double but generates the wrong index.
For now the code above converts double to ieee extended to compute
the index back to double for the h value.
index = 0x3fe - (tix >> 20);
hix = (tix + (0x2000 << index)) & (0xffffc000 << index);
x = fabsl (x);
@ -141,7 +160,7 @@ __kernel_sincosl(long double x, long double y, long double *sinx, long double *c
default:
case 2: index = (hix - 0x3fc30000) >> 14; break;
}
*/
SET_LDOUBLE_WORDS64(h, ((u_int64_t)hix) << 32, 0);
if (iy)
l = y - (h - x);

20
sysdeps/ieee754/ldbl-128ibm/k_sinl.c
View File

@ -104,6 +104,24 @@ __kernel_sinl(long double x, long double y, int iy)
pre-computed tables, compute cosl(l) and sinl(l) using a
Chebyshev polynomial of degree 10(11) and compute
sinl(h+l) = sinl(h)cosl(l) + cosl(h)sinl(l). */
int six = tix;
tix = ((six - 0x3ff00000) >> 4) + 0x3fff0000;
index = 0x3ffe - (tix >> 16);
hix = (tix + (0x200 << index)) & (0xfffffc00 << index);
x = fabsl (x);
switch (index)
{
case 0: index = ((45 << 10) + hix - 0x3ffe0000) >> 8; break;
case 1: index = ((13 << 11) + hix - 0x3ffd0000) >> 9; break;
default:
case 2: index = (hix - 0x3ffc3000) >> 10; break;
}
hix = (hix << 4) & 0x3fffffff;
/*
The following should work for double but generates the wrong index.
For now the code above converts double to ieee extended to compute
the index back to double for the h value.
index = 0x3fe - (tix >> 20);
hix = (tix + (0x2000 << index)) & (0xffffc000 << index);
x = fabsl (x);
@ -114,7 +132,7 @@ __kernel_sinl(long double x, long double y, int iy)
default:
case 2: index = (hix - 0x3fc30000) >> 14; break;
}
*/
SET_LDOUBLE_WORDS64(h, ((u_int64_t)hix) << 32, 0);
if (iy)
l = y - (h - x);

31
sysdeps/ieee754/ldbl-128ibm/s_ceill.c
View File

@ -18,9 +18,6 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* This has been coded in assembler because GCC makes such a mess of it
when it's coded in C. */
#include <math.h>
#include <fenv.h>
#include <math_ldbl_opt.h>
@ -44,19 +41,23 @@ __ceill (x)
u.d = x;
if (fabs (u.dd[0]) < TWO52)
{
{
double high = u.dd[0];
fesetround(FE_UPWARD);
if (u.dd[0] > 0.0)
if (high > 0.0)
{
u.dd[0] += TWO52;
u.dd[0] -= TWO52;
high += TWO52;
high -= TWO52;
if (high == -0.0) high = 0.0;
}
else if (u.dd[0] < 0.0)
else if (high < 0.0)
{
u.dd[0] -= TWO52;
u.dd[0] += TWO52;
high -= TWO52;
high += TWO52;
if (high == 0.0) high = -0.0;
}
u.dd[1] = 0.0;
u.dd[0] = high;
u.dd[1] = 0.0;
fesetround(mode);
}
else if (fabs (u.dd[1]) < TWO52 && u.dd[1] != 0.0)
@ -82,10 +83,10 @@ __ceill (x)
adjust for that. */
high = nextafter (u.dd[0], 0.0);
low = u.dd[1] + (u.dd[0] - high);
}
}
fesetround(FE_UPWARD);
low += TWO52;
low -= TWO52;
low -= TWO52;
fesetround(mode);
}
else if (u.dd[0] < 0.0)
@ -103,10 +104,10 @@ __ceill (x)
adjust for that. */
high = nextafter (u.dd[0], 0.0);
low = u.dd[1] + (u.dd[0] - high);
}
}
fesetround(FE_UPWARD);
low -= TWO52;
low += TWO52;
low += TWO52;
fesetround(mode);
}
u.dd[0] = high + low;

54
sysdeps/ieee754/ldbl-128ibm/s_cprojl.c Normal file
View File

@ -0,0 +1,54 @@
/* Compute projection of complex long double value to Riemann sphere.
Copyright (C) 1997,1999,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <complex.h>
#include <math.h>
#include <math_ldbl_opt.h>
__complex__ long double
__cprojl (__complex__ long double x)
{
__complex__ long double res;
if (isnan (__real__ x) && isnan (__imag__ x))
return x;
else if (!isfinite (__real__ x) || !isfinite (__imag__ x))
{
__real__ res = INFINITY;
__imag__ res = __copysignl (0.0, __imag__ x);
}
else
{
long double den = (__real__ x * __real__ x + __imag__ x * __imag__ x
+ 1.0);
__real__ res = (2.0 * __real__ x) / den;
__imag__ res = (2.0 * __imag__ x) / den;
/* __gcc_qmul does not respect -0.0 so we need the following fixup. */
if (__real__ x == 0.0)
__real__ res = __real__ x;
if (__imag__ x == 0.0)
__imag__ res = __imag__ x;
}
return res;
}
long_double_symbol (libm, __cprojl, cprojl);

87
sysdeps/ieee754/ldbl-128ibm/s_ctanhl.c Normal file
View File

@ -0,0 +1,87 @@
/* Complex hyperbole tangent for long double. IBM extended format version.
Copyright (C) 1997,2005,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <complex.h>
#include <fenv.h>
#include <math.h>
#include <math_ldbl_opt.h>
#include "math_private.h"
__complex__ long double
__ctanhl (__complex__ long double x)
{
__complex__ long double res;
if (!isfinite (__real__ x) || !isfinite (__imag__ x))
{
if (__isinfl (__real__ x))
{
__real__ res = __copysignl (1.0, __real__ x);
__imag__ res = __copysignl (0.0, __imag__ x);
}
else if (__imag__ x == 0.0)
{
res = x;
}
else
{
__real__ res = __nanl ("");
__imag__ res = __nanl ("");
#ifdef FE_INVALID
if (__isinfl (__imag__ x))
feraiseexcept (FE_INVALID);
#endif
}
}
else
{
long double sin2ix, cos2ix;
long double den;
__sincosl (2.0 * __imag__ x, &sin2ix, &cos2ix);
den = (__ieee754_coshl (2.0 * __real__ x) + cos2ix);
if (den == 0.0L)
{
__complex__ long double ez = __cexpl (x);
__complex__ long double emz = __cexpl (-x);
res = (ez - emz) / (ez + emz);
}
else
{
__real__ res = __ieee754_sinhl (2.0 * __real__ x) / den;
__imag__ res = sin2ix / den;
}
/* __gcc_qmul does not respect -0.0 so we need the following fixup. */
if ((__real__ res == 0.0) && (__real__ x == 0.0))
__real__ res = __real__ x;
if ((__real__ res == 0.0) && (__imag__ x == 0.0))
__imag__ res = __imag__ x;
}
return res;
}
long_double_symbol (libm, __ctanhl, ctanhl);

88
sysdeps/ieee754/ldbl-128ibm/s_ctanl.c Normal file
View File

@ -0,0 +1,88 @@
/* Complex tangent function for long double. IBM extended format version.
Copyright (C) 1997,2005,2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <complex.h>
#include <fenv.h>
#include <math.h>
#include <math_ldbl_opt.h>
#include "math_private.h"
__complex__ long double
__ctanl (__complex__ long double x)
{
__complex__ long double res;
if (!isfinite (__real__ x) || !isfinite (__imag__ x))
{
if (__isinfl (__imag__ x))
{
__real__ res = __copysignl (0.0, __real__ x);
__imag__ res = __copysignl (1.0, __imag__ x);
}
else if (__real__ x == 0.0)
{
res = x;
}
else
{
__real__ res = __nanl ("");
__imag__ res = __nanl ("");
#ifdef FE_INVALID
if (__isinfl (__real__ x))
feraiseexcept (FE_INVALID);
#endif
}
}
else
{
long double sin2rx, cos2rx;
long double den;
__sincosl (2.0 * __real__ x, &sin2rx, &cos2rx);
den = cos2rx + __ieee754_coshl (2.0 * __imag__ x);
if (den == 0.0)
{
__complex__ long double ez = __cexpl (1.0i * x);
__complex__ long double emz = __cexpl (-1.0i * x);
res = (ez - emz) / (ez + emz) * -1.0i;
}
else
{
__real__ res = sin2rx / den;
__imag__ res = __ieee754_sinhl (2.0 * __imag__ x) / den;
}
/* __gcc_qmul does not respect -0.0 so we need the following fixup. */
if ((__real__ res == 0.0) && (__real__ x == 0.0))
__real__ res = __real__ x;
if ((__real__ res == 0.0) && (__imag__ x == 0.0))
__imag__ res = __imag__ x;
}
return res;
}
long_double_symbol (libm, __ctanl, ctanl);

21
sysdeps/ieee754/ldbl-128ibm/s_floorl.c
View File

@ -18,9 +18,6 @@
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* This has been coded in assembler because GCC makes such a mess of it
when it's coded in C. */
#include <math.h>
#include <fenv.h>
#include <math_ldbl_opt.h>
@ -44,18 +41,22 @@ __floorl (x)
u.d = x;
if (fabs (u.dd[0]) < TWO52)
{
{
double high = u.dd[0];
fesetround(FE_DOWNWARD);
if (u.dd[0] > 0.0)
if (high > 0.0)
{
u.dd[0] += TWO52;
u.dd[0] -= TWO52;
high += TWO52;
high -= TWO52;
if (high == -0.0) high = 0.0;
}
else if (u.dd[0] < 0.0)
else if (high < 0.0)
{
u.dd[0] -= TWO52;
u.dd[0] += TWO52;
high -= TWO52;
high += TWO52;
if (high == 0.0) high = -0.0;
}
u.dd[0] = high;
u.dd[1] = 0.0;
fesetround(mode);
}