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authorUlrich Drepper <drepper@redhat.com>1997-03-25 01:45:04 +0000
committerUlrich Drepper <drepper@redhat.com>1997-03-25 01:45:04 +0000
commit3e5f55575217bd22a301a77eafe00f2f3a727107 (patch)
tree21f840213d3720c9fa8c8fdad17917897b5ee386 /sysdeps/m68k/fpu/e_atan2.c
parentbc9f6000f6752153e5e1902259d5f491a88a1ae5 (diff)
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Update.
1997-03-25 02:15 Ulrich Drepper <drepper@cygnus.com> * gmon/gmon.c: Optimize a bit by using more sets of records to write in a single writev call. * math/math.h: Add definitions of macros __MATHCALLX and __MATHDECLX. * math/mathcalls.h: Use __MATHCALLX for fabs, infnan, copysign, nan, isnan, nextafter, trunc, __fpclassify and signbit to mark as `const'. Use __MATHDECLX for isinf and finite. * sysdeps/generic/setenv.c [_LIBC]: Define __clearenv and make clearenv a weak alias. Implement complex exponential function. * sysdeps/libm-ieee754/s_cexp.c: New file. * sysdeps/libm-ieee754/s_cexpf.c: New file. * sysdeps/libm-ieee754/s_cexpl.c: New file. * sysdeps/libm-ieee754/s_nan.c: Define function as __nan and make nan a weak alias. * sysdeps/libm-ieee754/s_nanf.c: Likewise for nanf. * sysdeps/libm-ieee754/s_nanl.c: Likewise for nanl. * sysdeps/unix/sysv/linux/iovec.h: Don't use kernel header because of type clashes. Add all definitions here. * sysdeps/unix/sysv/linux/shmat.c: Likewise. Correct types according to XPG4.2. * sysdeps/unix/sysv/linux/shmdt.c: Likewise. * sysdeps/unix/sysv/linux/msgrcv.c: Likewise. * sysvipc/sys/shm.h (shmat, shmdt): Correct types. * sysdeps/unix/sysv/linux/sys/kd.h: Define _LINUX_TYPES_H to avoid use of kernel types. 1997-03-25 00:00 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/netinet/ip.h (struct ip_timestamp): Correct typos. Reported by a sun <asun@zoology.washington.edu>. 1997-03-20 21:58 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/libm-ieee754/s_asinhl.c: Fix sign of result. 1997-03-20 16:20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/libm-ieee754/e_atan2l.c: Fix typo. 1997-03-20 14:23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/fpu/__math.h (__logb, logb): Don't define. * sysdeps/m68k/fpu/s_logb.c: Removed. * sysdeps/m68k/fpu/s_logbf.c: Removed. * sysdeps/m68k/fpu/s_logbl.c: Removed. * sysdeps/m68k/fpu/__math.h (__ieee754_atan2, __ieee754_pow): Don't define here. * sysdeps/m68k/fpu/e_atan2.c: Rewritten. * sysdeps/m68k/fpu/e_pow.c: Likewise. * sysdeps/m68k/fpu/e_atan2f.c: Based on e_atan2.c. * sysdeps/m68k/fpu/e_atan2l.c: Likewise. * sysdeps/m68k/fpu/e_powf.c: Based on e_pow.c. * sysdeps/m68k/fpu/e_powl.c: Likewise. * sysdeps/m68k/fpu/s_log2.c: New file. * sysdeps/m68k/fpu/s_log2f.c: New file. * sysdeps/m68k/fpu/s_log2l.c: New file. * sysdeps/m68k/fpu/s_exp2.c: New file. * sysdeps/m68k/fpu/s_exp2f.c: New file. * sysdeps/m68k/fpu/s_exp2l.c: New file. 1997-03-20 14:46 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makeconfig (all): Make sure this is always the default goal. 1997-03-20 11:09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/libm-test.c: Increase epsilon in many places. Fix many typos. Allow optinal argument also for short option. 1997-03-20 11:09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/Makefile ($(objpfx)$(tests)): Link against libm. 1997-03-24 23:14 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-ieee754/s_fpclassifyl.c: Correct recognition of denormalized numbers. * sysdeps/i386/huge_val.h: Remove references to byte order macros. Don't include <endian.h>. 1997-03-19 15:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/huge_val.h: Remove references to byte order macros. Don't include <endian.h>. 1997-03-24 23:09 Ulrich Drepper <drepper@cygnus.com> * inet/rcmd.c (iruserok): Use access instead of euidaccess. 1997-03-15 18:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * math/cmathcalls.h: Remove whitespace before function name in use of __MATHDECL macro, to make it compilable with a traditional preprocessor. 1997-03-24 15:31 Ulrich Drepper <drepper@cygnus.com> * configure.in: Use AC_PROG_CC instead of AC_PROG_TOOL to find compiler. 1997-03-24 02:34 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-ieee754/s_finitel.c (__finitel): Shift return value by 31 positions to get 0/1 result. Patch by Joe Keane <jgk@jgk.org>. 1997-03-23 12:15 H.J. Lu <hjl@gnu.ai.mit.edu> * posix/getopt.c (__getopt_nonoption_flags): Make it extern to prevent from ld linking in getopt.o even if there is another incompatible one. * posix/getopt_init.c (__getopt_nonoption_flags): Remove extern. 1997-03-23 23:30 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/nis_call.c (__do_niscall): Print message if cold start file does not exist. * nis/nis_file.c: Don't print error messages. * nis/nis_local_name.c (nis_local_host): Fix pointer errors. * nis/rpcsvc/ypclnt.h: Fix copyright and prototypes. * nis/rpcsvc/nis.h: Likewise. * nis/ypclnt.c: Fix prototypes. 1997-03-24 01:36 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-i387/e_scalb.S: Pop additional result before returning. * sysdeps/libm-i387/e_scalbf.S: Likewise. * sysdeps/libm-i387/e_scalbl.S: Likewise. Reported by Andreas Jaeger <aj@arthur.pfalz.de>. * elf/rtld.c (dl_main): Set main_map->l_opencount to 1 also if dynamic linker was called implicitly by the kernel. Reported by Eric Youngdale <eric@andante.jic.com>. * math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c, CFLAGS-test-longdouble.c): New variables. Set to -fno-inline to prevent clever optimizations which corrupt the tests. 1997-03-23 21:33 Andreas Jaeger <aj@arthur.pfalz.de> * math/libm-test.c (scalb_test): New function. (sqrt_test): New function. (scalbn_test): New function. (ilogb_test): New function. (main): Added calls for new test functions. (ldexp_test): Add another test for ldexp(x,0). 1997-03-23 12:35 Andreas Jaeger <aj@arthur.pfalz.de> * math/libm-test.c (remquo_test): Correct messages so that they match the tests. (copysign_test): Likewise. 1997-03-23 16:28 Ulrich Drepper <drepper@cygnus.com> * stdio-common/Makefile (routines): Add printf_size. * stdio-common/printf.h: Add declarations for printf_size and printf_size_info. * stdio-common/printf-parse.h (__printf_arginfo_table): Correct declaration. (parse_one_spec): Test whether __printf_function_table is not NULL before using registered handlers and don't test __printf_arginfo_table. Update nargs also when handler is registered. * stdio-common/vfprintf.c (vfprintf): Count number of specifiers processed in fast loop. * stdio-common/printf_size: New file. 1997-03-22 04:53 Ulgmon_out_readrich Drepper <drepper@cygnus.com>
Diffstat (limited to 'sysdeps/m68k/fpu/e_atan2.c')
-rw-r--r--sysdeps/m68k/fpu/e_atan2.c100
1 files changed, 98 insertions, 2 deletions
diff --git a/sysdeps/m68k/fpu/e_atan2.c b/sysdeps/m68k/fpu/e_atan2.c
index ae7a799ad1..58d7555f41 100644
--- a/sysdeps/m68k/fpu/e_atan2.c
+++ b/sysdeps/m68k/fpu/e_atan2.c
@@ -1,2 +1,98 @@
-#define FUNC __ieee754_atan2
-#include <e_fmod.c>
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#define __LIBC_M81_MATH_INLINES
+#include <math.h>
+#include "math_private.h"
+
+#ifndef SUFF
+#define SUFF
+#endif
+#ifndef float_type
+#define float_type double
+#endif
+
+#define __CONCATX(a,b) __CONCAT(a,b)
+
+float_type
+__CONCATX(__ieee754_atan2,SUFF) (float_type y, float_type x)
+{
+ float_type pi, pi_2, z;
+
+ __asm ("fmovecr%.x %#0, %0" : "=f" (pi));
+ __asm ("fscale%.w %#-1, %0" : "=f" (pi_2) : "0" (pi));
+ if (x != x || y != y)
+ z = x + y;
+ else if (y == 0)
+ {
+ if (signbit (x))
+ z = signbit (y) ? -pi : pi;
+ else
+ z = y;
+ }
+ else if (__m81_u(__CONCATX(__isinf,SUFF)) (x))
+ {
+ if (__m81_u(__CONCATX(__isinf,SUFF)) (y))
+ {
+ float_type pi_4;
+ __asm ("fscale%.w %#-1, %0" : "=f" (pi_4) : "0" (pi_2));
+ z = x > 0 ? pi_4 : 3 * pi_4;
+ }
+ else
+ z = x > 0 ? 0 : pi;
+ if (signbit (y))
+ z = -z;
+ }
+ else if (__m81_u(__CONCATX(__isinf,SUFF)) (y))
+ z = y > 0 ? pi_2 : -pi_2;
+ else if (x > 0)
+ {
+ if (y > 0)
+ {
+ if (x > y)
+ z = __m81_u(__CONCATX(__atan,SUFF)) (y / x);
+ else
+ z = pi_2 - __m81_u(__CONCATX(__atan,SUFF)) (x / y);
+ }
+ else
+ {
+ if (x > -y)
+ z = __m81_u(__CONCATX(__atan,SUFF)) (y / x);
+ else
+ z = -pi_2 - __m81_u(__CONCATX(__atan,SUFF)) (x / y);
+ }
+ }
+ else
+ {
+ if (y < 0)
+ {
+ if (-x > y)
+ z = -pi + __m81_u(__CONCATX(__atan,SUFF)) (y / x);
+ else
+ z = -pi_2 - __m81_u(__CONCATX(__atan,SUFF)) (x / y);
+ }
+ else
+ {
+ if (-x > y)
+ z = pi + __m81_u(__CONCATX(__atan,SUFF)) (y / x);
+ else
+ z = pi_2 - __m81_u(__CONCATX(__atan,SUFF)) (x / y);
+ }
+ }
+ return z;
+}