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author | Ulrich Drepper <drepper@redhat.com> | 1997-05-21 01:48:59 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-05-21 01:48:59 +0000 |
commit | 1f205a479b43e5e40672fe5b4ae8f717b28c41b1 (patch) | |
tree | 0611b2d3503d81c55b27b235119ae999f1271178 /sysdeps/powerpc/strlen.s | |
parent | 43b0e40f85770cd1f362c3abbad41e09bd9f0b17 (diff) | |
download | glibc-1f205a479b43e5e40672fe5b4ae8f717b28c41b1.tar.gz glibc-1f205a479b43e5e40672fe5b4ae8f717b28c41b1.tar.xz glibc-1f205a479b43e5e40672fe5b4ae8f717b28c41b1.zip |
Update. cvs/libc-ud-970520
1997-05-21 02:49 Ulrich Drepper <drepper@cygnus.com> * gnu-versions.h (_GNU_OBSTACK_INTERFACE_VERSION): Set to 2 since interface was changed with addition of _obstack_memory_used. Suggested by Ian Taylor <ian@cygnus.com>. * malloc/obstack.c: Include <config.h>. Include <stdlib.h> only if __GNU_LIBRARY__ or HAVE_STDLIB_H is defined. Reported by Ian Taylor <ian@cygnus.com>. * dirent/Makefile (routines): Add versionsort. * dirent/dirent.h: Add prototype for versionsort. * dirent/versionsort.c: New file. * manual/filesys.texi: Add documentation for versionsort. * manual/string.texi: Add documentation for strverscmp. * string/Makefile (routines): Add strverscmp. (tests): Add tst-svc. * string/string.h: Add prototype for strverscmp. * string/strverscmp.c: New file. * string/tst-svc.c: New file. Test for strverscmp. * string/tst-svc.input: New file. Input data for tst-svc. * string/tst-svc.expect: New file. Expected out from tst-svc. * math/Makefile (calls): Add s_signbit. * po/sv.po: Update. * resolv/nss_dns/dns-host.c: Add casts to prevent warnings. * sunrpc/pmap_rmt.c: Likewise. * string/basename.c: Don't use ISO C definition style. Include <config.h> is HAVE_CONFIG_H is defined. * sunrpc/proto.h: Add `const' wherever possible. * sunrpc/rpc_cout.c: Likewise. * sunrpc/rpc_svcout.c: Likewise. * sunrpc/xdr_mem.c: Likewise. * sunrpc/xdr_rec.c: Likewise. * sunrpc/xdr_stdio.c: Likewise. * sunrpc/rpc_parse.c: Delete comma from end of enum definition. * sunrpc/xdr.c: Little code cleanups. * sunrpc/xdr_flaot.c: Likewise. Patches by Matthew Wilcox <matthew.wilcox@chbs.mhs.ciba.com>. * sysdeps/i386/fpu/__math.h (__finite): Fix typo. * sysdeps/unix/sysv/linux/shmdt.c: Add cast to prevent warning. * time/europe: Update from tzdata1997f. * time/zic.c: Update from tzcode1997e. 1997-05-20 19:20 Miguel de Icaza <miguel@athena.nuclecu.unam.mx> * sysdeps/sparc/setjmp.S: Flush windows. Bug found by Richard Henderson. 1997-05-19 12:54 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * misc/efgcvt_r.c (fcvt_r, ecvt_r): Rewritten as to fit the specs. 1997-05-19 18:41 Thorsten Kukuk <kukuk@uni-paderborn.de> * nis/nss_nisplus/nisplus-spwd.c (_nss_nisplus_parse_spent): Use atol instead of atoi. 1997-05-18 00:22 Philip Blundell <pjb27@cam.ac.uk> * inet/Makefile (routines): Add if_index. * sysdeps/unix/sysv/linux/if_index.c: New file. * sysdeps/stub/if_index.c: New file. * sysdeps/unix/sysv/linux/net/if.h: Add prototypes for routines in if_index.c (required by IPv6 basic API). * sysdeps/unix/sysv/linux/netinet/in.h: Add struct ipv6_pktinfo. 1997-05-17 23:29 Philip Blundell <pjb27@cam.ac.uk> * sysdeps/unix/sysv/linux/netinet/in.h: Update IPv6 definitions for new advanced API draft. 1997-05-13 21:33 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * stdio-common/printf_fp.c: Only use the field width for deciding on padding when printing special values. * stdio-common/printf_fphex.c: Likewise. 1997-05-15 13:14 Miles Bader <miles@gnu.ai.mit.edu> Changes by Thomas Bushnell <thomas@gnu.ai.mit.edu>: * hurd/hurdauth.c (_S_msg_add_auth): Implement correctly. 1997-05-12 14:50 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * hurd/hurdsig.c (_hurdsig_init): Double size of sigthread stack; msg_add_auth was overflowing it. 1997-05-12 21:20 Richard Henderson <rth@tamu.edu> * elf/dl-lookup.c (_dl_lookup_symbol_skip): Call _dl_signal_error when we can't find the symbol. 1997-05-12 16:54 Ulrich Drepper <drepper@cygnus.com> * posix/regex.c: Fix handling of 32-bit Windog environments. Patch by Arnold Robbins <arnold@skeeve.atl.ga.us>. 1997-05-10 23:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/m68k/syscalls.list: Add cacheflush. 1997-05-10 11:40 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * elf/ldd.bash.in: Remove spurious quote character from version message. 1997-05-10 08:49 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * locale/programs/locale.c (write_charmaps): Don't get stuck in a loop if the file ends in a long line without newline. * locale/programs/charmap.c (charmap_read): Likewise. 1997-05-12 03:47 Ulrich Drepper <drepper@cygnus.com> * sunrpc/rpc/xdr.h: Include more headers to be self-contained. * sunrpc/rpc/svc_auth.h: Likewise. * sunrpc/rpc/svc.h: Likewise. * sunrpc/rpc/rpc_msg.h: Likewise. * sunrpc/rpc/pmap_rmt.h: Likewise. * sunrpc/rpc/pmap_clnt.h: Likewise. * sunrpc/rpc/clnt.h: Likewise. * sunrpc/rpc/auth_unix.h: Likewise. * sysdeps/generic/rpc/auth.h: Likewise. Patches by Michael Deutschmann <ldeutsch@mail.netshop.net>. 1997-05-11 15:29 Philip Blundell <pjb27@cam.ac.uk> * sysdeps/stub/sigaction.c (__sigaction): Correct typo. * sysdeps/standalone/arm/errnos.h: New file. * sysdeps/stub/sys/param.h: Add dummy definition of MAXSYMLINKS. * sysdeps/unix/arm/fork.S: New file. * sysdeps/unix/sysv/linux/arm/sysdep.h: New file. * sysdeps/stub/tempname.c (__stdio_gen_tempname): Add missing `streamptr' argument. * sysdeps/stub/vdprintf.c: Remove second copy of file (!), include <stdarg.h> to get va_list defined, return 0 not NULL. * sysdeps/unix/sysv/linux/statfsbuf.h: Include <gnu/types.h>. * sysdeps/unix/sysv/linux/arm/syscall.S: New file. * sysdeps/stub/direntry.h (struct dirent): Add missing ';'. * sysdeps/stub/seekdir.c (seekdir): Likewise. * sysdeps/stub/dirfd.c (dirfd): Argument dirp is DIR*, not FILE*. * sysdeps/standalone/dirstream.h: Define struct __dirstream not DIR; <dirent.h> provides typedef. * sysdeps/unix/sysv/linux/arm/clone.S: New file. * sysdeps/unix/sysv/linux/arm/socket.S: New file. * sysdeps/stub/sysconf.c (__sysconf): Fix typos. 1997-05-01 06:35 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/Dist: New file. * sysdeps/powerpc/Makefile: New file. * sysdeps/powerpc/fclrexcpt.c: New file. * sysdeps/powerpc/fegetenv.c: New file. * sysdeps/powerpc/fegetround.c: New file. * sysdeps/powerpc/feholdexcpt.c: New file. * sysdeps/powerpc/fenvbits.h: New file. * sysdeps/powerpc/fenv_const.c: New file. * sysdeps/powerpc/fenv_libc.h: New file. * sysdeps/powerpc/fesetenv.c: New file. * sysdeps/powerpc/fesetround.c: New file. * sysdeps/powerpc/feupdateenv.c: New file. * sysdeps/powerpc/fgetexcptflg.c: New file. * sysdeps/powerpc/fraiseexcpt.c: New file. * sysdeps/powerpc/fsetexcptflg.c: New file. * sysdeps/powerpc/ftestexcept.c: New file. * sysdeps/powerpc/mathbits.h: New file. * sysdeps/powerpc/dl-machine.h: Wrap in #ifndef dl_machine_h; define elf_machine_lookup_noexec_p, elf_machine_lookup_noplt_p, ELF_MACHINE_RELOC_NOPLT; consequent changes to elf_machine_rela. * sysdeps/powerpc/__math.h: Remove definition for hypot and __sgn. * sysdep/powerpc/fpu_control.h: Correct IEEE default mode. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Don't use .text, but instead .section ".text". 1997-04-25 05:06 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/__longjmp.S: Use symbolic register numbering. * sysdeps/powerpc/bsd-_setjmp.S: Likewise. * sysdeps/powerpc/bsd-setjmp.S: Likewise. * sysdeps/powerpc/setjmp.S: Likewise. * sysdeps/unix/sysv/linux/clone.S: Likewise. * sysdeps/unix/sysv/linux/socket.S: Likewise. * sysdeps/unix/sysv/linux/syscall.S: Likewise. 1997-04-20 04:37 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/strchr.s: New file. * sysdeps/powerpc/strcmp.s: New (ugly) file. * sysdeps/powerpc/memset.s: New file. * string/tester.c: Include prototype and _GNU_SOURCE to make standalone compilation possible. Give strcmp a better test. Give memset a better test. 1997-04-05 06:34 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/strlen.s: Fixed bugs (how did it ever pass its tests before?). Changed to symbolic register numbering as an experiment. * sysdeps/powerpc/ffs.c: Don't include bstring.h, it doesn't exist. * sysdeps/rs6000/ffs.c: Likewise. 1997-05-12 02:28 Ulrich Drepper <drepper@cygnus.com> * time/sys/time.h: Make second argument of setitimer const. Patch by Michael Deutschmann <ldeutsch@mail.netshop.net>. * sysdeps/stub/setitimer.c: Likewise. * sysdeps/mach/hurd/setitimer.c: Likewise.
Diffstat (limited to 'sysdeps/powerpc/strlen.s')
-rw-r--r-- | sysdeps/powerpc/strlen.s | 104 |
1 files changed, 52 insertions, 52 deletions
diff --git a/sysdeps/powerpc/strlen.s b/sysdeps/powerpc/strlen.s index eb6a88e2b8..fa1c670912 100644 --- a/sysdeps/powerpc/strlen.s +++ b/sysdeps/powerpc/strlen.s @@ -68,78 +68,78 @@ # them, the others we must save. .section ".text" - .align 3 + .align 2 .globl strlen .type strlen,@function strlen: # On entry, r3 points to the string, and it's left that way. - # We use r6 to store 0x01010101, and r7 to store 0x7f7f7f7f. + # We use r6 to store 0xfefefeff, and r7 to store 0x7f7f7f7f. # r4 is used to keep the current index into the string; r5 holds # the number of padding bits we prepend to the string to make it # start at a word boundary. r8 holds the 'current' word. # r9-12 are temporaries. r0 is used as a temporary and for discarded # results. - clrrwi 4,3,2 - lis 6,0xfeff - lis 7,0x7f7f - rlwinm 10,3,0,29,29 - lwz 8,0(4) - addi 7,7,0x7f7f - rlwinm 5,3,3,27,28 - cmpwi 1,10,0 - li 9,-1 + clrrwi %r4,%r3,2 + lis %r6,0xfeff + lis %r7,0x7f7f + rlwinm %r10,%r3,0,29,29 + lwz %r8,0(%r4) + addi %r7,%r7,0x7f7f + rlwinm %r5,%r3,3,27,28 + cmpwi %cr1,%r10,0 + li %r9,-1 # That's the setup done, now do the first pair of words. # We make an exception and use method (2) on the first two words, to reduce # overhead. - srw 9,9,5 - and 0,7,8 - or 10,7,8 - add 0,0,7 - nor 0,10,0 - and. 8,0,9 - bne done0 + srw %r9,%r9,%r5 + and %r0,%r7,%r8 + or %r10,%r7,%r8 + add %r0,%r0,%r7 + nor %r0,%r10,%r0 + and. %r8,%r0,%r9 + bne done0 # Handle second word of pair. Put addi between branches to avoid hurting # branch prediction. - addi 6,6,0xfffffeff - - bne 1,loop - lwzu 8,4(4) - and 0,7,8 - or 10,7,8 - add 0,0,7 - nor. 0,10,0 - bne done0 + addi %r6,%r6,0xfffffeff + + bne %cr1,loop + lwzu %r8,4(%r4) + and %r0,%r7,%r8 + or %r10,%r7,%r8 + add %r0,%r0,%r7 + nor. %r8,%r10,%r0 + bne done0 # The loop. + +loop: lwz %r8,4(%r4) + lwzu %r9,8(%r4) + add %r0,%r6,%r8 + nor %r10,%r7,%r8 + and. %r0,%r0,%r10 + add %r11,%r6,%r9 + nor %r12,%r7,%r9 + bne done1 + and. %r0,%r11,%r12 + beq loop -loop: lwz 8,4(4) - lwzu 9,8(4) - add 0,6,8 - nor 10,7,8 - and. 0,0,10 - add 11,6,9 - nor 12,7,9 - bne done1 - and. 0,11,12 - beq loop - - and 0,7,9 - or 10,7,9 - b done2 - -done1: addi 4,4,-4 - and 0,7,9 - or 10,7,9 -done2: add 0,0,7 - nor 0,10,0 - + and %r0,%r7,%r9 + add %r0,%r0,%r7 + andc %r8,%r12,%r0 + b done0 + +done1: and %r0,%r7,%r8 + subi %r4,%r4,4 + add %r0,%r0,%r7 + andc %r8,%r10,%r0 + # When we get to here, r4 points to the first word in the string that # contains a zero byte, and the most significant set bit in r8 is in that # byte. -done0: cntlzw 11,8 - subf 0,3,4 - srwi 11,11,3 - add 3,0,11 +done0: cntlzw %r11,%r8 + subf %r0,%r3,%r4 + srwi %r11,%r11,3 + add %r3,%r0,%r11 blr 0: .size strlen,0b-strlen |