From 8f5ca04bc7fd53741d80117df992995ace8f6d2d Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Mon, 16 Oct 1995 01:37:51 +0000 Subject: Sat Oct 14 02:52:36 1995 Ulrich Drepper * malloc/malloc.c (_malloc_internal): Performance fix. Move if statement out of loop. * stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster implementation using GMP functions. Contributed by Torbjorn Granlund and Ulrich Drepper. * stdio/test_rdwr.c: Include . * sysdeps/i386/i586/Implies: New file. New highly optimized string functions for i[345]86. * sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files. * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files. * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files. * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files. * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files. * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files. * sysdeps/i386/i586/strlen.S: New file. * sysdeps/i386/memchr.c: Removed. There is now an assembler version. * sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did not correspond to used values. * sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper around a kernel header file. * sysdeps/unix/sysv/linux/Dist: Add it. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers): Likewise. * sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of defining ourself we use a kernel header file. * sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system call handler for i586. * sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up. Sat Oct 14 02:52:36 1995 Ulrich Drepper * malloc/malloc.c (_malloc_internal): Performance fix. Move if statement out of loop. * stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster implementation using GMP functions. Contributed by Torbjorn Granlund and Ulrich Drepper. * stdio/test_rdwr.c: Include . * sysdeps/i386/i586/Implies: New file. New highly optimized string functions for i[345]86. * sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files. * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files. * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files. * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files. * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files. * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files. * sysdeps/i386/i586/strlen.S: New file. * sysdeps/i386/memchr.c: Removed. There is now an assembler version. * sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did not correspond to used values. * sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper around a kernel header file. * sysdeps/unix/sysv/linux/Dist: Add it. * sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers): Likewise. * sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of defining ourself we use a kernel header file. * sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system call handler for i586. * sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up. --- sysdeps/i386/add_n.S | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) (limited to 'sysdeps/i386/add_n.S') diff --git a/sysdeps/i386/add_n.S b/sysdeps/i386/add_n.S index c4e71ea8c7..c3b3c3e4e1 100644 --- a/sysdeps/i386/add_n.S +++ b/sysdeps/i386/add_n.S @@ -1,7 +1,7 @@ /* i80386 __mpn_add_n -- Add two limb vectors of the same length > 0 and store sum in a third limb vector. -Copyright (C) 1992, 1994 Free Software Foundation, Inc. +Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc. This file is part of the GNU MP Library. @@ -54,14 +54,18 @@ C_SYMBOL_NAME(__mpn_add_n:) subl %eax,%edx /* ... enter the loop */ shrl $2,%eax /* restore previous value */ #ifdef PIC - call here -here: leal (Loop - 3 - here)(%eax,%eax,8),%eax - addl %eax,(%esp) - ret +/* Calculate start address in loop for PIC. Due to limitations in some + assemblers, Loop-L0-3 cannot be put into the leal */ + call L0 +L0: leal (%eax,%eax,8),%eax + addl (%esp),%eax + addl $(Loop-L0-3),%eax + addl $4,%esp #else - leal (Loop - 3)(%eax,%eax,8),%eax /* calc start addr in loop */ - jmp *%eax /* jump into loop */ +/* Calculate start address in loop for non-PIC. */ + leal (Loop - 3)(%eax,%eax,8),%eax #endif + jmp *%eax /* jump into loop */ ALIGN (3) Loop: movl (%esi),%eax adcl (%edx),%eax -- cgit v1.2.3