From 6bc31da01b1271826c8feefb5f0efdf22d64061c Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 1 Jan 1997 15:28:18 +0000 Subject: update from main archive 970101 Wed Jan 1 15:15:00 1997 Ulrich Drepper * libio/Makefile (routines): Add fcloseall. * libio/fcloseall.c: New file. * libio/stdio.h [__USE_GNU]: Add prototype for fcloseall. * libio/iofclose.c: Don't close all streams when argument is NULL. * stdio/Makefile (routines): Add fcloseall. * stdio/fcloseall.c: New file. * stdio/stdio.h [__USE_GNU]: Add prototype for fcloseall. * stdio/fclose.c: Don't close all streams when argument is NULL. * manual/stdio.texi: Document fcloseall. * sysdeps/generic/abort.c: Call __fcloseall instead of fclose with NULL argument. * socket/sys/un.h (SUN_LEN): Add cast. * sunrpc/auth_unix.c (authunix_create): Change parameter types of uid, gid, and aup_gids to uid_t and gid_t respectively. (authunix_create_default): Likewise. (authunix_refresh): Correct cast for aup_gids assignment. * sunrpc/rpc/auth.h (authunix_create): Correct types in declaration. * sunrpc/rpc/auth_unix.h (struct authunix_parms): Correct field types to uid_t and gid_t respectively. (struct short_hand_verf): Likewise. Reported by Andreas Schwab. * sysdeps/ieee754/Makefile: New file. Make sure ieee754.h gets installed. * sysdeps/ieee754/ieee754.h: Protect against multiple inclusion and use in C++ programs. * sysdeps/libm-i387/e_pow.S: New file. Optimized ix87 assembler version of pow() function. * sysdeps/libm-i387/e_powf.S: New file. Float version. * sysdeps/libm-i387/e_powl.S: New file. Long double version. * sysdeps/libm-i387/s_expm1.S: New file. Optimized ix87 assembler version of expm1() function. * sysdeps/libm-i387/s_expm1f.S: New file. Float version. * sysdeps/libm-i387/s_expm1l.S: New file. Long double version. * sysdeps/libm-i387/e_exp.S: Optimize handling of +-Inf. Better handling of computation stack from current NetBSD sources. * sysdeps/libm-i387/e_expf.S: Likewise. * sysdeps/libm-i387/e_expl.S: Likewise. * sysdeps/libm-i387/e_log.S: Use fstp instead of fincstp. * sysdeps/libm-i387/e_logf.S: Likewise. * sysdeps/libm-i387/e_logl.S: Likewise. * sysdeps/libm-i387/e_log10.S: Likewise. * sysdeps/libm-i387/e_log10f.S: Likewise. * sysdeps/libm-i387/e_log10l.S: Likewise. * sysdeps/libm-i387/s_asinh.S: Likewise. * sysdeps/libm-i387/s_asinhf.S: Likewise. * sysdeps/libm-i387/s_asinhl.S: Likewise. * sysdeps/libm-i387/s_significandl.S: Likewise. * sysdeps/libm-i387/s_ceil.S: Don't create stack frame. Modify stack pointer directly. Use 32 bit instead of 16 bit operations. * sysdeps/libm-i387/s_ceilf.S: Likewise. * sysdeps/libm-i387/s_ceill.S: Likewise. * sysdeps/libm-i387/s_floor.S: Likewise. * sysdeps/libm-i387/s_floorf.S: Likewise. * sysdeps/libm-i387/s_floorl.S: Likewise. * sysdeps/libm-ieee754/e_coshf.c (huge): Don't declare volatile. * sysdeps/libm-ieee754/e_expf.c: Likewise. * sysdeps/libm-ieee754/e_powf.c: Likewise. From current NetBSD sources. * sysdeps/libm-ieee754/e_hypot.c (__ieee754_hypot): Don't initialize `a' and `b' in definition. * sysdeps/libm-ieee754/e_hypotf.c: Likewise. * sysdeps/libm-ieee754/e_hypotl.c: New file. Long double implementation. * sysdeps/libm-ieee754/e_sinhl.c: New file. Long double implementation. * sysdeps/stub/e_hypotl.c: Removed. We have a real version now. * sysdeps/stub/e_sinhl.c: Removed. * sysdeps/posix/sigpause.c (__sigpause): Use sigdelset instead of sigaddset. Reported by Andreas Schwab. (__default_sigpause): New function. Call __sigpause as BSD version. Make this the default function by providing alias sigpause. * sysdeps/stub/sigpause.c (__default_sigpause): New funciton. Simply fail. Provide alias sigpause. Wed Jan 1 12:34:54 1997 Ulrich Drepper * po/es.po: Update for glibc-1.98. * po/fr.po: Likewise. * po/sv.po: New file. Swedish translation. Wed Jan 1 12:18:07 1997 MacGyver * values.h: Fix typos: use SHRT_MAX but SHORT_MAX and SHRT_MIN but SHORT_MIN. Tue Dec 24 23:10:21 1996 Andreas Schwab * Makefile: Replace `stubs.h' by `gnu/stubs.h'. * features.h: Include instead of . Tue Dec 24 22:16:55 1996 Andreas Schwab * Makefile (subdirs): Move `elf' last so that librtld.so isn't relinked in the `make others' pass if an add-on adds something to libc. Mon Dec 23 21:23:16 1996 Andreas Schwab * sysdeps/m68k/abort-instr.h: New File. Mon Dec 23 21:16:38 1996 Andreas Schwab * sysdeps/m68k/Makefile ($(subdir)=elf): Define CFLAGS-rtld.c to prevent warning. Mon Dec 23 21:14:22 1996 Andreas Schwab * resolv/Makefile (subdirs-dirs): Define. Mon Dec 23 20:56:49 1996 Andreas Schwab * sysdeps/gnu/utmpbits.h (struct utmp): Fix padding. Mon Dec 30 11:05:11 1996 Ulrich Drepper Update from ADO tzcode1996o. * time/difftime.c: De-ANSI-declfy. Simplify computation of hibit according to ADO version. * time/zic.c: Correct typo is message. Update from ADO tzdata1996n. * time/asia: Updated. * time/australasia: Likewise. * time/europe: Likewise. * time/northamerica: Likewise. * time/southamerica: Likewise. --- sysdeps/libm-i387/s_expm1f.S | 83 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 sysdeps/libm-i387/s_expm1f.S (limited to 'sysdeps/libm-i387/s_expm1f.S') diff --git a/sysdeps/libm-i387/s_expm1f.S b/sysdeps/libm-i387/s_expm1f.S new file mode 100644 index 0000000..85c3c84 --- /dev/null +++ b/sysdeps/libm-i387/s_expm1f.S @@ -0,0 +1,83 @@ +/* ix87 specific implementation of exp(x)-1. + Copyright (C) 1996 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1996. + Based on code by John C. Bowman . + + 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. */ + + /* Using: e^x - 1 = 2^(x * log2(e)) - 1 */ + +#include + +#ifdef __ELF__ + .section .rodata +#else + .text +#endif + .align ALIGNARG(4) + ASM_TYPE_DIRECTIVE(zero,@object) +zero: .double 0.0 + ASM_SIZE_DIRECTIVE(zero) + ASM_TYPE_DIRECTIVE(one,@object) +one: .double 1.0 + ASM_SIZE_DIRECTIVE(one) + ASM_TYPE_DIRECTIVE(l2e,@object) +l2e: .tfloat 1.442695040888963407359924681002 + ASM_SIZE_DIRECTIVE(l2e) + +#ifdef PIC +#define MO(op) op##@GOTOFF(%edx) +#else +#define MO(op) op +#endif + + .text +ENTRY(__expm1f) + flds 4(%esp) // x + fxam // Is NaN or +-Inf? + fstsw %ax +#ifdef PIC + call 1f +1: popl %edx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %edx +#endif + movb $0x45, %ch + andb %ah, %ch + cmpb $0x05, %ch + je 2f // Is +-Inf, jump. + + fldt MO(l2e) // log2(e) : x + fmulp // log2(e)*x + fld %st // log2(e)*x : log2(e)*x + frndint // int(log2(e)*x) : log2(e)*x + fsub %st, %st(1) // int(log2(e)*x) : fract(log2(e)*x) + fxch // fract(log2(e)*x) : int(log2(e)*x) + f2xm1 // 2^fract(log2(e)*x)-1 : int(log2(e)*x) + fscale // 2^(log2(e)*x)-2^int(log2(e)*x) : int(log2(e)*x) + fxch // int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x) + fldl MO(one) // 1 : int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x) + fscale // 2^int(log2(e)*x) : 2^(log2(e)*x)-2^int(log2(e)*x) + faddp // 2^(log2(e)*x) + fsubl MO(one) + ret + +2: testl $0x200, %eax // Test sign. + jz 3f // If positive, jump. + fldl MO(zero) // Set result to 0. +3: ret +END(__expm1f) +weak_alias (__expm1f, expm1f) -- cgit v1.1