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| author | Roland McGrath <roland@gnu.org> | 1995-10-16 01:37:51 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1995-10-16 01:37:51 +0000 |
| commit | 8f5ca04bc7fd53741d80117df992995ace8f6d2d (patch) | |
| tree | e39c13fc198b22ec55647259a8080051988e8c69 /sysdeps/generic/divmod_1.c | |
| parent | 5d82cf5c55f56ae10d3b0a205d1fcc7de1cf56a0 (diff) | |
| download | glibc-8f5ca04bc7fd53741d80117df992995ace8f6d2d.tar.gz glibc-8f5ca04bc7fd53741d80117df992995ace8f6d2d.tar.xz glibc-8f5ca04bc7fd53741d80117df992995ace8f6d2d.zip | |
Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* 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 <errno.h>.
* 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 [$(subdir)=sunrpc] (headers):
Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Rewrite. Instead of
defining ourself we use a kernel header file.
* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
call handler for i586.
* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>
* malloc/malloc.c (_malloc_internal): Performance fix. Move
if statement out of loop.
* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite. Much faster
implementation using GMP functions. Contributed by
Torbjorn Granlund and Ulrich Drepper.
* stdio/test_rdwr.c: Include <errno.h>.
* sysdeps/i386/i586/Implies: New file.
New highly optimized string functions for i[345]86.
* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
* sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
* sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
* sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
* sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
* sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
* sysdeps/i386/i586/strlen.S: New file.
* sysdeps/i386/memchr.c: Removed. There is now an assembler version.
* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
not correspond to used values.
* sysdeps/unix/sysv/linux/nfs/nfs.h: New file. Simply a wrapper
around a kernel header file.
* sysdeps/unix/sysv/linux/Dist: Add it.
* sysdeps/unix/sysv/linux/Makefile [$(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.
Diffstat (limited to 'sysdeps/generic/divmod_1.c')
| -rw-r--r-- | sysdeps/generic/divmod_1.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sysdeps/generic/divmod_1.c b/sysdeps/generic/divmod_1.c index d156eeb00d..2989d36708 100644 --- a/sysdeps/generic/divmod_1.c +++ b/sysdeps/generic/divmod_1.c @@ -83,14 +83,12 @@ __mpn_divmod_1 (quot_ptr, dividend_ptr, dividend_size, divisor_limb) result is a (N+1)-bit approximation to 1/DIVISOR_LIMB, with the most significant bit (with weight 2**N) implicit. */ -#if 0 /* This can't happen when normalization_steps != 0 */ /* Special case for DIVISOR_LIMB == 100...000. */ if (divisor_limb << 1 == 0) divisor_limb_inverted = ~(mp_limb) 0; else -#endif - udiv_qrnnd (divisor_limb_inverted, dummy, - -divisor_limb, 0, divisor_limb); + udiv_qrnnd (divisor_limb_inverted, dummy, + -divisor_limb, 0, divisor_limb); n1 = dividend_ptr[dividend_size - 1]; r = n1 >> (BITS_PER_MP_LIMB - normalization_steps); |