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-rw-r--r--sysdeps/powerpc/powerpc32/power4/fpu/Makefile1
-rw-r--r--sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c93
-rw-r--r--sysdeps/powerpc/powerpc64/power4/fpu/Makefile1
-rw-r--r--sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c93
4 files changed, 2 insertions, 186 deletions
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/Makefile b/sysdeps/powerpc/powerpc32/power4/fpu/Makefile
index f487ed6..ded9976 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/Makefile
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/Makefile
@@ -2,4 +2,5 @@
ifeq ($(subdir),math)
CFLAGS-mpa.c += --param max-unroll-times=4 -funroll-loops -fpeel-loops
+CPPFLAGS-slowpow.c += -DUSE_LONG_DOUBLE_FOR_MP=1
endif
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c b/sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c
deleted file mode 100644
index 7c97d95..0000000
--- a/sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c
+++ /dev/null
@@ -1,93 +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:slowpow.c */
-/* */
-/* FUNCTION:slowpow */
-/* */
-/*FILES NEEDED:mpa.h */
-/* mpa.c mpexp.c mplog.c halfulp.c */
-/* */
-/* Given two IEEE double machine numbers y,x , routine computes the */
-/* correctly rounded (to nearest) value of x^y. Result calculated by */
-/* multiplication (in halfulp.c) or if result isn't accurate enough */
-/* then routine converts x and y into multi-precision doubles and */
-/* recompute. */
-/*************************************************************************/
-
-#include "mpa.h"
-#include <math_private.h>
-
-void __mpexp (mp_no * x, mp_no * y, int p);
-void __mplog (mp_no * x, mp_no * y, int p);
-double ulog (double);
-double __halfulp (double x, double y);
-
-double
-__slowpow (double x, double y, double z)
-{
- double res, res1;
- long double ldw, ldz, ldpp;
- static const long double ldeps = 0x4.0p-96;
-
- res = __halfulp (x, y); /* halfulp() returns -10 or x^y */
- if (res >= 0)
- return res; /* if result was really computed by halfulp */
- /* else, if result was not really computed by halfulp */
-
- /* Compute pow as long double, 106 bits */
- ldz = __ieee754_logl ((long double) x);
- ldw = (long double) y *ldz;
- ldpp = __ieee754_expl (ldw);
- res = (double) (ldpp + ldeps);
- res1 = (double) (ldpp - ldeps);
-
- if (res != res1) /* if result still not accurate enough */
- { /* use mpa for higher precision. */
- mp_no mpx, mpy, mpz, mpw, mpp, mpr, mpr1;
- static const mp_no eps = { -3, {1.0, 4.0} };
- int p;
-
- p = 10; /* p=precision 240 bits */
- __dbl_mp (x, &mpx, p);
- __dbl_mp (y, &mpy, p);
- __dbl_mp (z, &mpz, p);
- __mplog (&mpx, &mpz, p); /* log(x) = z */
- __mul (&mpy, &mpz, &mpw, p); /* y * z =w */
- __mpexp (&mpw, &mpp, p); /* e^w =pp */
- __add (&mpp, &eps, &mpr, p); /* pp+eps =r */
- __mp_dbl (&mpr, &res, p);
- __sub (&mpp, &eps, &mpr1, p); /* pp -eps =r1 */
- __mp_dbl (&mpr1, &res1, p); /* converting into double precision */
- if (res == res1)
- return res;
-
- /* if we get here result wasn't calculated exactly, continue for
- more exact calculation using 768 bits. */
- p = 32;
- __dbl_mp (x, &mpx, p);
- __dbl_mp (y, &mpy, p);
- __dbl_mp (z, &mpz, p);
- __mplog (&mpx, &mpz, p); /* log(c)=z */
- __mul (&mpy, &mpz, &mpw, p); /* y*z =w */
- __mpexp (&mpw, &mpp, p); /* e^w=pp */
- __mp_dbl (&mpp, &res, p); /* converting into double precision */
- }
- return res;
-}
diff --git a/sysdeps/powerpc/powerpc64/power4/fpu/Makefile b/sysdeps/powerpc/powerpc64/power4/fpu/Makefile
index f8bb3ef..41f2553 100644
--- a/sysdeps/powerpc/powerpc64/power4/fpu/Makefile
+++ b/sysdeps/powerpc/powerpc64/power4/fpu/Makefile
@@ -2,4 +2,5 @@
ifeq ($(subdir),math)
CFLAGS-mpa.c += --param max-unroll-times=4 -funroll-loops -fpeel-loops
+CPPFLAGS-slowpow.c += -DUSE_LONG_DOUBLE_FOR_MP=1
endif
diff --git a/sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c b/sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c
deleted file mode 100644
index 7c97d95..0000000
--- a/sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c
+++ /dev/null
@@ -1,93 +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:slowpow.c */
-/* */
-/* FUNCTION:slowpow */
-/* */
-/*FILES NEEDED:mpa.h */
-/* mpa.c mpexp.c mplog.c halfulp.c */
-/* */
-/* Given two IEEE double machine numbers y,x , routine computes the */
-/* correctly rounded (to nearest) value of x^y. Result calculated by */
-/* multiplication (in halfulp.c) or if result isn't accurate enough */
-/* then routine converts x and y into multi-precision doubles and */
-/* recompute. */
-/*************************************************************************/
-
-#include "mpa.h"
-#include <math_private.h>
-
-void __mpexp (mp_no * x, mp_no * y, int p);
-void __mplog (mp_no * x, mp_no * y, int p);
-double ulog (double);
-double __halfulp (double x, double y);
-
-double
-__slowpow (double x, double y, double z)
-{
- double res, res1;
- long double ldw, ldz, ldpp;
- static const long double ldeps = 0x4.0p-96;
-
- res = __halfulp (x, y); /* halfulp() returns -10 or x^y */
- if (res >= 0)
- return res; /* if result was really computed by halfulp */
- /* else, if result was not really computed by halfulp */
-
- /* Compute pow as long double, 106 bits */
- ldz = __ieee754_logl ((long double) x);
- ldw = (long double) y *ldz;
- ldpp = __ieee754_expl (ldw);
- res = (double) (ldpp + ldeps);
- res1 = (double) (ldpp - ldeps);
-
- if (res != res1) /* if result still not accurate enough */
- { /* use mpa for higher precision. */
- mp_no mpx, mpy, mpz, mpw, mpp, mpr, mpr1;
- static const mp_no eps = { -3, {1.0, 4.0} };
- int p;
-
- p = 10; /* p=precision 240 bits */
- __dbl_mp (x, &mpx, p);
- __dbl_mp (y, &mpy, p);
- __dbl_mp (z, &mpz, p);
- __mplog (&mpx, &mpz, p); /* log(x) = z */
- __mul (&mpy, &mpz, &mpw, p); /* y * z =w */
- __mpexp (&mpw, &mpp, p); /* e^w =pp */
- __add (&mpp, &eps, &mpr, p); /* pp+eps =r */
- __mp_dbl (&mpr, &res, p);
- __sub (&mpp, &eps, &mpr1, p); /* pp -eps =r1 */
- __mp_dbl (&mpr1, &res1, p); /* converting into double precision */
- if (res == res1)
- return res;
-
- /* if we get here result wasn't calculated exactly, continue for
- more exact calculation using 768 bits. */
- p = 32;
- __dbl_mp (x, &mpx, p);
- __dbl_mp (y, &mpy, p);
- __dbl_mp (z, &mpz, p);
- __mplog (&mpx, &mpz, p); /* log(c)=z */
- __mul (&mpy, &mpz, &mpw, p); /* y*z =w */
- __mpexp (&mpw, &mpp, p); /* e^w=pp */
- __mp_dbl (&mpp, &res, p); /* converting into double precision */
- }
- return res;
-}
generated by cgit v1.1 at 2024-11-23 04:46:58 +0000