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freebsd-nq/lib
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Bruce Evans 60a50c2585 Optimize the 9pi/2 < |x| <= 2**19pi/2 case some more by avoiding an 
fabs(), a conditional branch, and sign adjustments of 3 variables for
x < 0 when the branch is taken.  In double precision, even when the
branch is perfectly predicted, this saves about 10 cycles or 10% on
amd64 (A64) and i386 (A64) for the negative half of the range, but
makes little difference for the positive half of the range.  In float
precision, it also saves about 4 cycles for the positive half of the
range on i386, and many more cycles in both halves on amd64 (28 in the
negative half and 11 in the positive half for tanf), but the amd64
times for float precision are anomalously slow so the larger
improvement is only a side effect.

Previous commits arranged for the x < 0 case to be handled simply:
- one part of the rounding method uses the magic number 0x1.8p52
  instead of the usual 0x1.0p52.  The latter is required for large |x|,
  but it doesn't work for negative x and we don't need it for large |x|.
- another part of the rounding method no longer needs to add `half'.
  It would have needed to add -half for negative x.
- removing the "quick check no cancellation" in the double precision
  case removed the need to take the absolute value of the quadrant
  number.

Add my noncopyright in e_rem_pio2.c
2008-02-23 12:53:21 +00:00
..
bind One more glue update for BIND 9.4.2 2007-12-02 22:21:30 +00:00
csu The __used (== __attribute__((__used)) ) silences the warning produced 2007-12-04 12:18:43 +00:00
libalias - Bump share library version which were missed in last bump 2007-06-18 18:47:54 +00:00
libarchive Sanity-check the block size. 2008-02-21 03:21:50 +00:00
libatm Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libautofs Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbegemot Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbluetooth Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libbsm Install getaudit_addr(2) and setaudit_addr(2) links to getaudit(2) and 2007-10-19 10:37:34 +00:00
libbsnmp - Bump share library version which were missed in last bump 2007-06-18 18:47:54 +00:00
libbz2 Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libc Note, as required by our agreement with IEEE/The Open Group, that the message 2008-02-21 19:16:57 +00:00
libc_r Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libcalendar
libcam 2nd and final commit that moves us to CAM_NEW_TRAN_CODE 2006-11-02 00:54:38 +00:00
libcom_err
libcompat Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libcrypt Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libdevinfo Markup fixes. 2006-09-17 21:27:35 +00:00
libdevstat The devstat(3) manpage claims that only <devstat.h> is needed as a 2008-01-31 16:55:12 +00:00
libdisk - Make Disk_Names() behave as documented in libdisk(3): return an array 2008-02-15 21:19:15 +00:00
libedit Merge NetBSD changes, among them: 2007-06-10 19:06:09 +00:00
libelf Document the return type for gelf_fsize(3). 2008-02-04 18:50:28 +00:00
libexpat Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libfetch Use memcpy(3) instead of the BSD-specific bcopy(3). 2008-02-08 09:48:48 +00:00
libftpio Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libgeom Remove parameter names from prototypes to avoid namespace issues. 2007-05-06 10:00:27 +00:00
libgpib Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libgssapi Make sure GSS-API mechanisms are loaded if gss_acquire_cred is called 2007-11-28 08:50:20 +00:00
libipsec Commit IPv6 support for FAST_IPSEC to the tree. 2007-07-01 12:08:08 +00:00
libipx Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libkiconv Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libkse Add missing #include 2008-02-06 23:25:29 +00:00
libkvm Plug memory leaks that is observed when argbuf or argspc is used in the 2008-01-12 00:54:47 +00:00
libmagic Update for the 'file' 4.23 import. 2008-01-13 20:37:19 +00:00
libmd Use unsigned comparisons. Prior to this commit, SHA1_Update and 2007-05-14 05:00:37 +00:00
libmemstat Make pointer argument to kread_string() const since the kernel structure 2007-05-21 18:16:04 +00:00
libmilter Switch libmilter from select(2) to poll(2) so milters are not limited 2008-02-17 05:14:47 +00:00
libmp Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libncp Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libnetgraph Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libngatm Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libopie Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libpam Adjust for OpenPAM Hydrangea. 2007-12-21 12:00:16 +00:00
libpcap Update for libpcap 0.9.8 import 2007-10-16 02:10:44 +00:00
libpmc Correct a typo. 2008-02-03 06:04:38 +00:00
libradius Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
librpcsvc set WARNS to 1: with WARNS=2 an aliasing error in a file generated by 2008-02-05 20:03:45 +00:00
librt Enable symbol versioning by default. Use WITHOUT_SYMVER to disable it. 2007-05-13 14:12:40 +00:00
libsbuf
libsdp Fix bug in handling SDP continuation state. 2007-11-16 15:13:12 +00:00
libsm New files in sendmail 8.14.1 2007-04-09 01:45:30 +00:00
libsmb Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libsmdb
libsmutil
libstand Fix logical bug in the bzip2 reading code, which results in bogus EIO 2007-12-18 01:50:49 +00:00
libtacplus Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libtelnet Stop enforcing dependencies between MK_* options at Makefile level. 2006-07-31 13:29:36 +00:00
libthr _pthread_mutex_isowned_np(): use a more reliable method; the current code 2008-02-14 12:37:58 +00:00
libthread_db Add arm support in libthread_db. 2007-11-17 21:27:53 +00:00
libufs Add a berase() function which uses ioctl(DIOCGDELETE) to erase a slab 2007-12-16 18:02:37 +00:00
libugidfw Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libusbhid Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libutil Put back the openpty(3) and ptsname(3) fixes but don't disable ptsname(3) 2008-01-15 15:36:23 +00:00
libvgl Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libwrap Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
liby Remove California Regent's clause 3, per letter 2007-01-09 01:02:06 +00:00
libypclnt Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00
libz Resolve conflicts. 2006-03-23 14:09:21 +00:00
msun Optimize the 9pi/2 < |x| <= 2**19pi/2 case some more by avoiding an 2008-02-23 12:53:21 +00:00
ncurses - Remove duplicate tputs.3 from MLINK. As we use termcap in the bsae, remove 2008-02-13 14:34:39 +00:00
Makefile - Fix setting of MK_GSSAPI option by bsd.own.mk; its value should 2007-12-12 16:39:32 +00:00
Makefile.inc Bump library versions in preparation for 7.0. 2007-05-21 02:49:08 +00:00