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1997-08-02 21:27 Ulrich Drepper <drepper@cygnus.com> * inet/Makefile (headers): Rename netinet/inbits.h to bits/in.h. * inet/netinet/in.h: Include bits/in.h instead of netinet/inbits.h. * sysdeps/generic/netinet/inbits.h: Move to... * sysdeps/generic/bits/in.h: ... here. * sysdeps/unix/sysv/linux/bits/inbits.h: Move to ... * sysdeps/unix/sysv/linux/bits/in.h: ... here. * nis/Makefile (headers): Add bits/nislib.h. * nis/rpcsvc/nislib.h: Moved to .... * nis/bits/nislib.h: ... here. * nis/nss_compat/compat-grp.c: Don't include <rpcsvc/nislib.h>. * nis/nss_compat/compat-pwd.c: Likewise. * nis/nss_compat/compat-spwd.c: Likewise. * nis/nss_nisplus/nisplus-alias.c: Likewise. * nis/nss_nisplus/nisplus-ethers.c: Likewise. * nis/nss_nisplus/nisplus-grp.c: Likewise. * nis/nss_nisplus/nisplus-hosts.c: Likewise. * nis/nss_nisplus/nisplus-netgrp.c: Likewise. * nis/nss_nisplus/nisplus-ntework.c: Likewise. * nis/nss_nisplus/nisplus-proto.c: Likewise. * nis/nss_nisplus/nisplus-publickey.c: Likewise. * nis/nss_nisplus/nisplus-pwd.c: Likewise. * nis/nss_nisplus/nisplus-rpc.c: Likewise. * nis/nss_nisplus/nisplus-service.c: Likewise. * nis/nss_nisplus/nisplus-spwd.c: Likewise. * nis/rpcsvc/nis.x: Include bits/nislib.h, not rpcsvc/nislib.h. * nis/rpcsvc/nis.h: Likewise. * inet/getnameinfo.c (nrl_domainname): Change return type to const char *. (getnameinfo): Change type of local variable c to const char *. * inet/inet_ntoa.c: Rewrite to use __libc_once for initialization. * stdlib/fmtmsg.c: Likewise. * intl/bindtextdom.c: Update from latest gettext. * intl/dcgettext.c: Likewise. * intl/finddomain.c: Likewise. * intl/l10nflist.c: Likewise. * intl/localealias.c: Likewise. * intl/textdomain.c: Likewise. * login/getutid_r.c: Remove parameter to setutent call. * login/getutline_r.c: Likewise. * posix/wordexp.c: Complete rewrite. Not fully implemented yet, though. Patch by Tim Waugh <tim@cyberelk.demon.co.uk>. * stdio-common/printf_fp.c: Remove relative include paths. * stdio-common/printf_fphex.c: Likewise. * sysdeps/generic/crypt.h: Cleanup. Don't define non standard elements unless __USE_GNU. * sysdeps/generic/vlimit.c: Pretty print. * sysdeps/generic/vtimes.c: Likewise. * sysdeps/i386/elf/bsd-_setjmp.S: New file. Empty dummy file. * sysdeps/i386/elf/bsd-setjmp.S: New file. Empty dummy file. * sysdeps/i386/elf/setjmp.S: New file. Define __setjmp and also weak definitions of setjmp and _setjmp. * sysdeps/i386/fpu/bits/mathinline.h: More patches by John Bowman. * sysdeps/stub/if_index.h: Set errno in all functions and add stub warnings. * sysdeps/stub/libc-lock.h: Add __libc_once. 1997-08-02 01:57 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/ptrace.c: Don't set errno in error case since the __syscall_ptrace call already did this. Reported by Philip Gladstone <philip@talon.raptor.com>. 1997-07-29 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/sys/fsuid.h: Change include <gnu/types.h> to <sys/types.h>. 1997-08-01 23:18 Ulrich Drepper <drepper@cygnus.com> * csu/defs.awk: Fix regexp for end and align. Patch by Klaus Espenlaub <kespenla@hydra.informatik.uni-ulm.de>. * locale/programs/localedef.c (print_escaped): New function. (show_info): Use print_escaped if strings can control unprintable characters. Patch by Jochen Hein <jochen.hein@delphi.central.de>. 1997-08-01 18:45 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/nss_nisplus/nisplus-alias.c: Fix NULL pointer problems * nis/nss_nisplus/nisplus-grp.c: Likewise. 1997-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/dl-profile.c (_dl_start_profile): Use _dl_sysdep_error instead of fprintf. 1997-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/socket.texi (Host Address Functions): Fix arguments of @deftypefun. 1997-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/dl-runtime.c: Avoid warning about profile_fixup being unused. * sysdeps/m68k/dl-machine.h: Add support for shared library profiling. 1997-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * md5-crypt/Makefile (extra-objs): Add onlymd5-crypt.o for dependencies. 1997-07-31 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Make-dist (subdirs): Distribute both aout and elf. 1997-07-31 23:04 Mark Kettenis <kettenis@phys.uva.nl> * login/utmp-private.h: Remove reset argument from backend setutent. * login/getutent_r.c (__setutent): Allways call the setutent function in the daemon backend. (setutent_unknown): Function removed. (getutent_unknown, pututline_unknown): Call __setutent instead of setutent_unknown. * login/utmp_file.c (setutent_file): Removed reset argument. All callers changed. * login/utmp_daemon.c (setutent_daemon): Removed reset argument. All callers changed. Try to open connection even if a previous connection failed, but first check if the sockets exist in the filesystem. * login/utmp_daemon.c (pututline_daemon): Try to open connection before reporting failure. * login/programs/database.c (open_database): Create compatibility file if it does not already exist. Supply mode argument in open calls to guarantee that created files have the proper protection. * login/programs/utmpd.c (main): Remove files created by a previous `bind' before creating sockets. Suggested by a sun <asum@zoology.washington.edu>. 1997-07-29 Andreas Jaeger <aj@arthur.rhein-neckar.de> * math/libm-test.c: Remove unneeded function check_int_exec. * BUGS: Correct typos. * gmon/gmon.c: Add alias for monstartup, declare _strerror_internal. 1997-07-30 Andreas Jaeger <aj@arthur.rhein-neckar.de> * manual/socket.texi (Host Address Functions): Reformat inet_ntop entry to confirm with expected behaviour of some scripts. * libc.map: Add functions/variables in global namespace, remove wildcards. 1997-07-29 Andreas Jaeger <aj@arthur.rhein-neckar.de> * resolv/libresolv.map: Add variables and routines used by named, nslookup and other bind utils. * libc.map: Likewise. 1997-07-31 00:35 Philip Blundell <Philip.Blundell@pobox.com> * sysdeps/unix/sysv/linux/if_index.c: Rewrite to avoid using /proc filesystem. * inet/test_ifindex.c: New file. * inet/Makefile (tests): Add test_ifindex. 1997-08-01 04:25 Ulrich Drepper <drepper@cygnus.com> * nis/nss_nisplus/nisplus-parser.c: Fix another bug in the parser. Patch by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>. * manual/errno.texi: Fix typo. Reported by Erik Talvola <etalvo@sapient.com>. (write_hist): Remove dependency on 32 bit int.
546 lines
18 KiB
C
546 lines
18 KiB
C
/* Inline math functions for i387.
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Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by John C. Bowman <bowman@math.ualberta.ca>, 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _BITS_MATHINLINE_H
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#define _BITS_MATHINLINE_H 1
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#if defined __USE_ISOC9X && defined __GNUC__ && __GNUC__ >= 2
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/* ISO C 9X defines some macros to perform unordered comparisons. The
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ix87 FPU supports this with special opcodes and we should use them.
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These must not be inline functions since we have to be able to handle
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all floating-point types. */
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# define isgreater(x, y) \
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({ int __result; \
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__asm__ ("fucompp; fnstsw; testb $0x45, %%ah; setz %%al;" \
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"andl $0x01, %0" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
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__result; })
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# define isgreaterequal(x, y) \
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({ int __result; \
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__asm__ ("fucompp; fnstsw; testb $0x05, %%ah; setz %%al;" \
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"andl $0x01, %0" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
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__result; })
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# define isless(x, y) \
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({ int __result; \
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__asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x45, %%ah;" \
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"setz %%al; andl $0x01, %0" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
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__result; })
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# define islessequal(x, y) \
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({ int __result; \
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__asm__ ("fucompp; fnstsw; xorb $0x01, %%ah; testb $0x05, %%ah;" \
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"setz %%al; andl $0x01, %0" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
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__result; })
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# define islessgreater(x, y) \
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({ int __result; \
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__asm__ ("fucompp; fnstsw; testb $0x44, %%ah; setz %%al;" \
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"andl $0x01, %0" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
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__result; })
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# define isunordered(x, y) \
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({ int __result; \
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__asm__ ("fucompp; fnstsw; sahf; setp %%al; andl $0x01, %0" \
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: "=a" (__result) : "u" (y), "t" (x) : "cc", "st", "st(1)"); \
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__result; })
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#endif
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#if defined __GNUC__ && \
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(__GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ <= 7))
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/* gcc 2.7.2 and 2.7.2.1 have problems with inlining `long double'
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functions so we disable this now. */
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# undef __NO_MATH_INLINES
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# define __NO_MATH_INLINES
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#endif
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#ifdef __GNUC__
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#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
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#ifdef __cplusplus
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# define __MATH_INLINE __inline
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#else
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# define __MATH_INLINE extern __inline
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#endif
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/* A macro to define float, double, and long double versions of various
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math functions for the ix87 FPU. FUNC is the function name (which will
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be suffixed with f and l for the float and long double version,
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respectively). OP is the name of the FPU operation. */
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#if defined __USE_MISC || defined __USE_ISOC9X
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# define __inline_mathop(func, op) \
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__inline_mathop_ (double, func, op) \
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__inline_mathop_ (float, __CONCAT(func,f), op) \
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__inline_mathop_ (long double, __CONCAT(func,l), op)
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#else
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# define __inline_mathop(func, op) \
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__inline_mathop_ (double, func, op)
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#endif
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#define __inline_mathop_(float_type, func, op) \
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__inline_mathop_decl_ (float_type, func, op, "0" (__x))
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#if defined __USE_MISC || defined __USE_ISOC9X
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# define __inline_mathop_decl(func, op, params...) \
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__inline_mathop_decl_ (double, func, op, params) \
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__inline_mathop_decl_ (float, __CONCAT(func,f), op, params) \
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__inline_mathop_decl_ (long double, __CONCAT(func,l), op, params)
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#else
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# define __inline_mathop_decl(func, op, params...) \
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__inline_mathop_decl_ (double, func, op, params)
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#endif
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#define __inline_mathop_decl_(float_type, func, op, params...) \
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__MATH_INLINE float_type func (float_type); \
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__MATH_INLINE float_type func (float_type __x) \
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{ \
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register float_type __result; \
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__asm __volatile__ (op : "=t" (__result) : params); \
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return __result; \
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}
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#if defined __USE_MISC || defined __USE_ISOC9X
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# define __inline_mathcode(func, arg, code) \
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__inline_mathcode_ (double, func, arg, code) \
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__inline_mathcode_ (float, __CONCAT(func,f), arg, code) \
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__inline_mathcode_ (long double, __CONCAT(func,l), arg, code)
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#else
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# define __inline_mathcode(func, arg, code) \
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__inline_mathcode_ (double, func, arg, code)
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#endif
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#define __inline_mathcode_(float_type, func, arg, code) \
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__MATH_INLINE float_type func (float_type); \
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__MATH_INLINE float_type func (float_type arg) \
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{ \
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code; \
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}
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#if defined __USE_MISC || defined __USE_ISOC9X
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# define __inline_mathcode2(func, arg1, arg2, code) \
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__inline_mathcode2_ (double, func, arg1, arg2, code) \
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__inline_mathcode2_ (float, __CONCAT(func,f), arg1, arg2, code) \
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__inline_mathcode2_ (long double, __CONCAT(func,l), arg1, arg2, code)
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#else
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# define __inline_mathcode2(func, arg1, arg2, code) \
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__inline_mathcode2_ (double, func, arg1, arg2, code)
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#endif
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#define __inline_mathcode2_(float_type, func, arg1, arg2, code) \
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__MATH_INLINE float_type func (float_type, float_type); \
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__MATH_INLINE float_type func (float_type arg1, float_type arg2) \
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{ \
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code; \
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}
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/* Optimized inline implementation, sometimes with reduced precision
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and/or argument range. */
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#define __expm1_code \
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register long double __value; \
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register long double __exponent; \
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register long double __temp; \
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__asm __volatile__ \
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("fldl2e # e^x - 1 = 2^(x * log2(e)) - 1\n\t" \
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"fmul %%st(1) # x * log2(e)\n\t" \
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"fstl %%st(1)\n\t" \
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"frndint # int(x * log2(e))\n\t" \
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"fxch\n\t" \
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"fsub %%st(1) # fract(x * log2(e))\n\t" \
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"f2xm1 # 2^(fract(x * log2(e))) - 1\n\t" \
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"fscale # 2^(x * log2(e)) - 2^(int(x * log2(e)))\n\t" \
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: "=t" (__value), "=u" (__exponent) : "0" (__x)); \
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__asm __volatile__ \
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("fscale # 2^int(x * log2(e))\n\t" \
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: "=t" (__temp) : "0" (1.0), "u" (__exponent)); \
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__temp -= 1.0; \
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return __temp + __value
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__inline_mathcode_ (long double, __expm1l, __x, __expm1_code)
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#define __exp_code \
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register long double __value; \
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register long double __exponent; \
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__asm __volatile__ \
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("fldl2e # e^x = 2^(x * log2(e))\n\t" \
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"fmul %%st(1) # x * log2(e)\n\t" \
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"fstl %%st(1)\n\t" \
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"frndint # int(x * log2(e))\n\t" \
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"fxch\n\t" \
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"fsub %%st(1) # fract(x * log2(e))\n\t" \
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"f2xm1 # 2^(fract(x * log2(e))) - 1\n\t" \
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: "=t" (__value), "=u" (__exponent) : "0" (__x)); \
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__value += 1.0; \
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__asm __volatile__ \
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("fscale" \
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: "=t" (__value) : "0" (__value), "u" (__exponent)); \
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return __value
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__inline_mathcode (exp, __x, __exp_code)
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__inline_mathcode_ (long double, __expl, __x, __exp_code)
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__inline_mathcode (tan, __x, \
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register long double __value; \
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register long double __value2 __attribute__ ((unused)); \
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__asm __volatile__ \
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("fptan" \
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: "=t" (__value2), "=u" (__value) : "0" (__x)); \
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return __value)
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#define __atan2_code \
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register long double __value; \
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__asm __volatile__ \
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("fpatan\n\t" \
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: "=t" (__value) : "0" (__x), "u" (__y) : "st(1)"); \
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return __value
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__inline_mathcode2 (atan2, __y, __x, __atan2_code)
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__inline_mathcode2_ (long double, __atan2l, __y, __x, __atan2_code)
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__inline_mathcode2 (fmod, __x, __y, \
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register long double __value; \
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__asm __volatile__ \
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("1: fprem\n\t" \
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"fnstsw %%ax\n\t" \
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"sahf\n\t" \
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"jp 1b" \
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: "=t" (__value) : "0" (__x), "u" (__y) : "ax", "cc"); \
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return __value)
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__inline_mathcode2 (pow, __x, __y, \
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register long double __value; \
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register long double __exponent; \
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long int __p = (long int) __y; \
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if (__x == 0.0 && __y > 0.0) \
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return 0.0; \
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if (__y == (double) __p) \
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{ \
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long double __r = 1.0; \
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if (__p == 0) \
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return 1.0; \
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if (__p < 0) \
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{ \
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__p = -__p; \
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__x = 1.0 / __x; \
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} \
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while (1) \
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{ \
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if (__p & 1) \
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__r *= __x; \
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__p >>= 1; \
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if (__p == 0) \
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return __r; \
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__x *= __x; \
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} \
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/* NOTREACHED */ \
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} \
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__asm __volatile__ \
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("fyl2x" : "=t" (__value) : "0" (__x), "u" (1.0) : "st(1)"); \
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__asm __volatile__ \
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("fmul %%st(1) # y * log2(x)\n\t" \
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"fst %%st(1)\n\t" \
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"frndint # int(y * log2(x))\n\t" \
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"fxch\n\t" \
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"fsub %%st(1) # fract(y * log2(x))\n\t" \
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"f2xm1 # 2^(fract(y * log2(x))) - 1\n\t" \
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: "=t" (__value), "=u" (__exponent) : "0" (__y), "1" (__value)); \
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__value += 1.0; \
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__asm __volatile__ \
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("fscale" \
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: "=t" (__value) : "0" (__value), "u" (__exponent)); \
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return __value)
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__inline_mathop (sqrt, "fsqrt")
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__inline_mathop_ (long double, __sqrtl, "fsqrt")
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#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 8)
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__inline_mathcode_ (fabs, __x, return __builtin_fabs (__x))
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__inline_mathcode_ (fabsf, __x, return __builtin_fabsf (__x))
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__inline_mathcode_ (fabsl, __x, return __builtin_fabsl (__x))
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__inline_mathcode_ (__fabsl, __x, return __builtin_fabsl (__x))
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#else
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__inline_mathop (fabs, "fabs")
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__inline_mathop_ (long double, __fabsl, "fabs")
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#endif
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/* The argument range of this inline version is reduced. */
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__inline_mathop (sin, "fsin")
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/* The argument range of this inline version is reduced. */
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__inline_mathop (cos, "fcos")
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__inline_mathop_decl (atan, "fpatan", "u" (__x), "0" (1.0) : "st(1)")
|
|
__inline_mathop (log, "fldln2; fxch; fyl2x")
|
|
__inline_mathop (log10, "fldlg2; fxch; fyl2x")
|
|
|
|
__inline_mathcode (asin, __x, return __atan2l (__x, __sqrtl (1.0 - __x * __x)))
|
|
__inline_mathcode (acos, __x, return __atan2l (__sqrtl (1.0 - __x * __x), __x))
|
|
|
|
__inline_mathcode_ (long double, __sgn1l, __x, return __x >= 0.0 ? 1.0 : -1.0)
|
|
|
|
|
|
/* The argument range of the inline version of sinhl is slightly reduced. */
|
|
__inline_mathcode (sinh, __x, \
|
|
register long double __exm1 = __expm1l (__fabsl (__x)); \
|
|
return 0.5 * (__exm1 / (__exm1 + 1.0) + __exm1) * __sgn1l (__x))
|
|
|
|
__inline_mathcode (cosh, __x, \
|
|
register long double __ex = __expl (__x); \
|
|
return 0.5 * (__ex + 1.0 / __ex))
|
|
|
|
__inline_mathcode (tanh, __x, \
|
|
register long double __exm1 = __expm1l (-__fabsl (__x + __x)); \
|
|
return __exm1 / (__exm1 + 2.0) * __sgn1l (-__x))
|
|
|
|
|
|
__inline_mathcode (floor, __x, \
|
|
register long double __value; \
|
|
__volatile unsigned short int __cw; \
|
|
__volatile unsigned short int __cwtmp; \
|
|
__asm __volatile ("fnstcw %0" : "=m" (__cw)); \
|
|
__cwtmp = (__cw & 0xf3ff) | 0x0400; /* rounding down */ \
|
|
__asm __volatile ("fldcw %0" : : "m" (__cwtmp)); \
|
|
__asm __volatile ("frndint" : "=t" (__value) : "0" (__x)); \
|
|
__asm __volatile ("fldcw %0" : : "m" (__cw)); \
|
|
return __value)
|
|
|
|
__inline_mathcode (ceil, __x, \
|
|
register long double __value; \
|
|
__volatile unsigned short int __cw; \
|
|
__volatile unsigned short int __cwtmp; \
|
|
__asm __volatile ("fnstcw %0" : "=m" (__cw)); \
|
|
__cwtmp = (__cw & 0xf3ff) | 0x0800; /* rounding up */ \
|
|
__asm __volatile ("fldcw %0" : : "m" (__cwtmp)); \
|
|
__asm __volatile ("frndint" : "=t" (__value) : "0" (__x)); \
|
|
__asm __volatile ("fldcw %0" : : "m" (__cw)); \
|
|
return __value)
|
|
|
|
#define __ldexp_code \
|
|
register long double __value; \
|
|
__asm __volatile__ \
|
|
("fscale" \
|
|
: "=t" (__value) : "0" (__x), "u" ((long double) __y)); \
|
|
return __value
|
|
|
|
__MATH_INLINE double ldexp (double __x, int __y);
|
|
__MATH_INLINE double
|
|
ldexp (double __x, int __y)
|
|
{
|
|
__ldexp_code;
|
|
}
|
|
|
|
|
|
/* Optimized versions for some non-standardized functions. */
|
|
#if defined __USE_ISOC9X || defined __USE_MISC
|
|
|
|
__inline_mathop_decl (log2, "fyl2x", "u" (1.0), "0" (__x) : "st(1)")
|
|
|
|
__inline_mathcode (expm1, __x, __expm1_code)
|
|
|
|
/* We cannot rely on M_SQRT being defined. So we do it for ourself
|
|
here. */
|
|
# define __M_SQRT2 _Mldbl(1.41421356237309504880) /* sqrt(2) */
|
|
|
|
__inline_mathcode (log1p, __x, \
|
|
register long double __value; \
|
|
if (__fabsl (__x) >= 1.0 - 0.5 * __M_SQRT2) \
|
|
__value = logl (1.0 + __x); \
|
|
else \
|
|
__asm __volatile__ \
|
|
("fldln2\n\t" \
|
|
"fxch\n\t" \
|
|
"fyl2xp1" \
|
|
: "=t" (__value) : "0" (__x)); \
|
|
return __value)
|
|
|
|
|
|
/* The argument range of the inline version of asinhl is slightly reduced. */
|
|
__inline_mathcode (asinh, __x, \
|
|
register long double __y = __fabsl (__x); \
|
|
return (log1pl (__y * __y / (__sqrtl (__y * __y + 1.0) + 1.0) + __y) \
|
|
* __sgn1l (__x))
|
|
|
|
__inline_mathcode (acosh, __x, \
|
|
return logl (__x + __sqrtl (__x - 1.0) * __sqrtl (__x + 1.0)))
|
|
|
|
__inline_mathcode (atanh, __x, \
|
|
register long double __y = __fabsl (__x); \
|
|
return (-0.5 * log1pl (-(__y + __y) / (1.0 + __y)) * \
|
|
__sgn1l (__x)))
|
|
|
|
|
|
/* The argument range of the inline version of hypotl is slightly reduced. */
|
|
__inline_mathcode2 (hypot, __x, __y, return __sqrtl (__x * __x + __y * __y))
|
|
|
|
__inline_mathcode(logb, __x, \
|
|
register long double __value; \
|
|
register long double __junk; \
|
|
__asm __volatile__ \
|
|
("fxtract\n\t" \
|
|
: "=t" (__junk), "=u" (__value) : "0" (__x)); \
|
|
return __value)
|
|
|
|
__MATH_INLINE float ldexpf (float __x, int __y);
|
|
__MATH_INLINE float
|
|
ldexpf (float __x, int __y)
|
|
{
|
|
__ldexp_code;
|
|
}
|
|
|
|
__MATH_INLINE long double ldexpl (long double __x, int __y);
|
|
__MATH_INLINE long double
|
|
ldexpl (long double __x, int __y)
|
|
{
|
|
__ldexp_code;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
#ifdef __USE_MISC
|
|
|
|
__inline_mathcode2 (drem, __x, __y, \
|
|
register double __value; \
|
|
__asm __volatile__ \
|
|
("1: fprem1\n\t" \
|
|
"fstsw %%ax\n\t" \
|
|
"sahf\n\t" \
|
|
"jp 1b" \
|
|
: "=t" (__value) : "0" (__x), "u" (__y) : "ax", "cc"); \
|
|
return __value)
|
|
|
|
|
|
/* This function is used in the `isfinite' macro. */
|
|
__MATH_INLINE int __finite (double __x);
|
|
__MATH_INLINE int
|
|
__finite (double __x)
|
|
{
|
|
register int __result;
|
|
__asm__ __volatile__
|
|
("orl $0x800fffff, %0\n\t"
|
|
"incl %0\n\t"
|
|
"shrl $31, %0"
|
|
: "=q" (__result) : "0" (((int *) &__x)[1]));
|
|
return __result;
|
|
}
|
|
|
|
/* Miscellaneous functions */
|
|
|
|
__inline_mathcode (__sgn, __x, \
|
|
return __x == 0.0 ? 0.0 : (__x > 0.0 ? 1.0 : -1.0))
|
|
|
|
__inline_mathcode (__coshm1, __x, \
|
|
register long double __exm1 = __expm1l (__fabsl (__x)); \
|
|
return 0.5 * (__exm1 / (__exm1 + 1.0)) * __exm1)
|
|
|
|
__inline_mathcode (__acosh1p, __x, \
|
|
return log1pl (__x + __sqrtl (__x) * __sqrtl (__x + 2.0)))
|
|
|
|
__inline_mathcode (__pow2, __x, \
|
|
register long double __value; \
|
|
register long double __exponent; \
|
|
long int __p = (long int) __x; \
|
|
if (__x == (long double) __p) \
|
|
return ldexpl (1.0, __p); \
|
|
__asm __volatile__ \
|
|
("fldl %%st(0)\n\t" \
|
|
"frndint # int(x)\n\t" \
|
|
"fxch\n\t" \
|
|
"fsub %%st(1) # fract(x)\n\t" \
|
|
"f2xm1 # 2^(fract(x)) - 1\n\t" \
|
|
: "=t" (__value), "=u" (__exponent) : "0" (__x)); \
|
|
__value += 1.0; \
|
|
__asm __volatile__ \
|
|
("fscale" \
|
|
: "=t" (__value) : "0" (__value), "u" (__exponent)); \
|
|
return __value)
|
|
|
|
#define __sincos_code \
|
|
register long double __cosr; \
|
|
register long double __sinr; \
|
|
__asm __volatile__ \
|
|
("fsincos\n\t" \
|
|
"fnstsw %%ax\n\t" \
|
|
"testl $0x400, %%eax\n\t" \
|
|
"jz 1f\n\t" \
|
|
"fldpi\n\t" \
|
|
"fadd %%st(0)\n\t" \
|
|
"fxch %%st(1)\n\t" \
|
|
"2: fprem1\n\t" \
|
|
"fnstsw %%ax\n\t" \
|
|
"testl $0x400, %%eax\n\t" \
|
|
"jnz 2b\n\t" \
|
|
"fstp %%st(1)\n\t" \
|
|
"fsincos\n\t" \
|
|
"1:" \
|
|
: "=t" (__cosr), "=u" (__sinr) : "0" (__x)); \
|
|
*__sinx = __sinr; \
|
|
*__cosx = __cosr
|
|
|
|
__MATH_INLINE void __sincos (double __x, double *__sinx, double *__cosx);
|
|
__MATH_INLINE void
|
|
__sincos (double __x, double *__sinx, double *__cosx)
|
|
{
|
|
__sincos_code;
|
|
}
|
|
|
|
__MATH_INLINE void __sincosf (float __x, float *__sinx, float *__cosx);
|
|
__MATH_INLINE void
|
|
__sincosf (float __x, float *__sinx, float *__cosx)
|
|
{
|
|
__sincos_code;
|
|
}
|
|
|
|
__MATH_INLINE void __sincosl (long double __x, long double *__sinx,
|
|
long double *__cosx);
|
|
__MATH_INLINE void
|
|
__sincosl (long double __x, long double *__sinx, long double *__cosx)
|
|
{
|
|
__sincos_code;
|
|
}
|
|
|
|
#endif /* __USE_MISC */
|
|
|
|
/* Undefine some of the large macros which are not used anymore. */
|
|
#undef __expm1_code
|
|
#undef __exp_code
|
|
#undef __atan2_code
|
|
#undef __sincos_code
|
|
|
|
#endif /* __NO_MATH_INLINES */
|
|
#endif /* __GNUC__ */
|
|
|
|
#endif /* _BITS_MATHINLINE_H */
|