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Merge powerpc slowexp.c into generic code

This commit is contained in:
Siddhesh Poyarekar 2013-03-07 13:25:02 +05:30
parent 4cc149fd8e
commit ce544b5bda
6 changed files with 21 additions and 133 deletions
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10
ChangeLog
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@ -1,5 +1,15 @@
2013-03-07 Siddhesh Poyarekar <siddhesh@redhat.com>
* sysdeps/ieee754/dbl-64/slowexp.c [!USE_LONG_DOUBLE_FOR_MP]:
Include mpa.h and declare __MPEXP.
[USE_LONG_DOUBLE_FOR_MP] (__slowexp): Call __IEEE754_EXPL.
* sysdeps/powerpc/powerpc32/power4/fpu/Makefile
(CPPFLAGS-slowexp.c): Define USE_LONG_DOUBLE_FOR_MP.
* sysdeps/powerpc/powerpc32/power4/fpu/slowexp.c: Remove.
* sysdeps/powerpc/powerpc64/power4/fpu/Makefile
(CPPFLAGS-slowexp.c): Define USE_LONG_DOUBLE_FOR_MP.
* sysdeps/powerpc/powerpc64/power4/fpu/slowexp.c: Remove.
* sysdeps/ieee754/dbl-64/slowpow.c [USE_LONG_DOUBLE_FOR_MP]
(__slowpow): Use long double EXPL and LOGL functions to
compute POW.

12
sysdeps/ieee754/dbl-64/slowexp.c
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@ -27,20 +27,23 @@
/*Converting from double precision to Multi-precision and calculating */
/* e^x */
/**************************************************************************/
#include "mpa.h"
#include <math_private.h>
#ifndef USE_LONG_DOUBLE_FOR_MP
# include "mpa.h"
void __mpexp (mp_no *x, mp_no *y, int p);
#endif
#ifndef SECTION
# define SECTION
#endif
void __mpexp (mp_no *x, mp_no *y, int p);
/*Converting from double precision to Multi-precision and calculating e^x */
double
SECTION
__slowexp (double x)
{
#ifndef USE_LONG_DOUBLE_FOR_MP
double w, z, res, eps = 3.0e-26;
int p;
mp_no mpx, mpy, mpz, mpw, mpeps, mpcor;
@ -66,4 +69,7 @@ __slowexp (double x)
__mp_dbl (&mpy, &res, p);
return res;
}
#else
return (double) __ieee754_expl((long double)x);
#endif
}

1
sysdeps/powerpc/powerpc32/power4/fpu/Makefile
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@ -3,4 +3,5 @@
ifeq ($(subdir),math)
CFLAGS-mpa.c += --param max-unroll-times=4 -funroll-loops -fpeel-loops
CPPFLAGS-slowpow.c += -DUSE_LONG_DOUBLE_FOR_MP=1
CPPFLAGS-slowexp.c += -DUSE_LONG_DOUBLE_FOR_MP=1
endif

65
sysdeps/powerpc/powerpc32/power4/fpu/slowexp.c
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@ -1,65 +0,0 @@
/*
* IBM Accurate Mathematical Library
* written by International Business Machines Corp.
* Copyright (C) 2001-2013 Free Software Foundation, Inc.
*
* This program 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.
*
* This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
*/
/**************************************************************************/
/* MODULE_NAME:slowexp.c */
/* */
/* FUNCTION:slowexp */
/* */
/* FILES NEEDED:mpa.h */
/* mpa.c mpexp.c */
/* */
/*Converting from double precision to Multi-precision and calculating */
/* e^x */
/**************************************************************************/
#include <math_private.h>
#ifdef NO_LONG_DOUBLE
#include "mpa.h"
void __mpexp(mp_no *x, mp_no *y, int p);
#endif
/*Converting from double precision to Multi-precision and calculating e^x */
double __slowexp(double x) {
#ifdef NO_LONG_DOUBLE
double w,z,res,eps=3.0e-26;
int p;
mp_no mpx, mpy, mpz,mpw,mpeps,mpcor;
p=6;
__dbl_mp(x,&mpx,p); /* Convert a double precision number x */
/* into a multiple precision number mpx with prec. p. */
__mpexp(&mpx, &mpy, p); /* Multi-Precision exponential function */
__dbl_mp(eps,&mpeps,p);
__mul(&mpeps,&mpy,&mpcor,p);
__add(&mpy,&mpcor,&mpw,p);
__sub(&mpy,&mpcor,&mpz,p);
__mp_dbl(&mpw, &w, p);
__mp_dbl(&mpz, &z, p);
if (w == z) return w;
else { /* if calculating is not exactly */
p = 32;
__dbl_mp(x,&mpx,p);
__mpexp(&mpx, &mpy, p);
__mp_dbl(&mpy, &res, p);
return res;
}
#else
return (double) __ieee754_expl((long double)x);
#endif
}

1
sysdeps/powerpc/powerpc64/power4/fpu/Makefile
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@ -3,4 +3,5 @@
ifeq ($(subdir),math)
CFLAGS-mpa.c += --param max-unroll-times=4 -funroll-loops -fpeel-loops
CPPFLAGS-slowpow.c += -DUSE_LONG_DOUBLE_FOR_MP=1
CPPFLAGS-slowexp.c += -DUSE_LONG_DOUBLE_FOR_MP=1
endif

65
sysdeps/powerpc/powerpc64/power4/fpu/slowexp.c
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@ -1,65 +0,0 @@
/*
* IBM Accurate Mathematical Library
* written by International Business Machines Corp.
* Copyright (C) 2001-2013 Free Software Foundation, Inc.
*
* This program 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.
*
* This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
*/
/**************************************************************************/
/* MODULE_NAME:slowexp.c */
/* */
/* FUNCTION:slowexp */
/* */
/* FILES NEEDED:mpa.h */
/* mpa.c mpexp.c */
/* */
/*Converting from double precision to Multi-precision and calculating */
/* e^x */
/**************************************************************************/
#include <math_private.h>
#ifdef NO_LONG_DOUBLE
#include "mpa.h"
void __mpexp(mp_no *x, mp_no *y, int p);
#endif
/*Converting from double precision to Multi-precision and calculating e^x */
double __slowexp(double x) {
#ifdef NO_LONG_DOUBLE
double w,z,res,eps=3.0e-26;
int p;
mp_no mpx, mpy, mpz,mpw,mpeps,mpcor;
p=6;
__dbl_mp(x,&mpx,p); /* Convert a double precision number x */
/* into a multiple precision number mpx with prec. p. */
__mpexp(&mpx, &mpy, p); /* Multi-Precision exponential function */
__dbl_mp(eps,&mpeps,p);
__mul(&mpeps,&mpy,&mpcor,p);
__add(&mpy,&mpcor,&mpw,p);
__sub(&mpy,&mpcor,&mpz,p);
__mp_dbl(&mpw, &w, p);
__mp_dbl(&mpz, &z, p);
if (w == z) return w;
else { /* if calculating is not exactly */
p = 32;
__dbl_mp(x,&mpx,p);
__mpexp(&mpx, &mpy, p);
__mp_dbl(&mpy, &res, p);
return res;
}
#else
return (double) __ieee754_expl((long double)x);
#endif
}