Commit Graph

176 Commits

Author SHA1 Message Date
Joseph Myers
f7be737659 Fix log (1) in round-downward mode (bug 16731).
According to ISO C Annex F, log (1) should be +0 in all rounding
modes, but some implementations in glibc wrongly return -0 in
round-downward mode (mapping to log1p (x - 1) is problematic because 1
- 1 is -0 in round-downward mode, and log1p (-0) is -0).  This patch
fixes this.  (It helps with some implementations of other functions
such as acosh, log2 and log10 that call out to log, but not enough to
enable all-rounding-modes testing for those functions without further
fixes to other implementations of them.)

Tested x86_64 and x86 and ulps updated accordingly, and did spot tests
for mips64 for the ldbl-128 fix, and i586 for the sysdeps/i386/fpu
implementations shadowed by those in sysdeps/i386/i686/fpu.

	[BZ #16731]
	* sysdeps/i386/fpu/e_log.S (__ieee754_log): Take absolute value
	when x - 1 is zero.
	* sysdeps/i386/fpu/e_logf.S (__ieee754_logf): Likewise.
	* sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Likewise.
	* sysdeps/i386/i686/fpu/e_logl.S (__ieee754_logl): Likewise.
	* sysdeps/ieee754/dbl-64/e_log.c (__ieee754_log): Return +0 when
	argument is 1.
	* sysdeps/ieee754/ldbl-128/e_logl.c (__ieee754_logl): Likewise.
	* sysdeps/x86_64/fpu/e_logl.S: Take absolute value when x - 1 is
	zero.
	* math/libm-test.inc (log_test): Use ALL_RM_TEST.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
2014-03-21 18:13:58 +00:00
Yuriy Kaminskiy
66671c84d5 Fix a thinko/typo in i686's memmove (aka __memmove_ia32).
* sysdeps/i386/i686/memmove.S (memmove): Compare distance between
	SRC and DEST against LEN.
2014-01-09 09:49:54 +13:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Andreas Schwab
1818483b15 Remove use of SSE4.2 functions for strstr on i686
The SSE4.2 have been removed from x86_64 by commit 584b18eb.  This patch
fixes the build on i686, which attempts to use the removed files.
2013-12-18 14:28:30 +10:00
Andreas Schwab
5bb43a4319 Make __ffs hidden 2013-09-20 21:25:31 +02:00
Joseph Myers
3f2e46a494 Remove --disable-versioning. 2013-09-04 15:25:42 +00:00
Andreas Schwab
5d228a436a Fix handling LC_CTYPE nonascii-case fallback in i686 SSE4.2 and SSSE3 strcasecmp/strncasecmp 2013-08-27 12:19:03 +02:00
Ondřej Bílka
c0c3f78afb Fix typos. 2013-08-21 19:48:48 +02:00
Liubov Dmitrieva
46ed103824 i686: Skip SSE4_2 version for strcmp, strncmp, strncase, strcasecmp
if bit_Slow_SSE4_2 is set.
2013-08-21 18:25:08 +04:00
H.J. Lu
1c81621c5b Enable static 32-bit SSE4.2 strcasecmp/strncasecmp 2013-07-02 08:06:04 -07:00
Joseph Myers
2366713d87 Remove remaining bounded-pointers support from i386 .S files. 2013-02-21 22:21:52 +00:00
Joseph Myers
92945b5261 Remove some bounded-pointers support from i386 .S files. 2013-02-19 21:58:08 +00:00
Joseph Myers
daaa7713e9 Remove bounded-pointers build system support. 2013-02-15 15:07:54 +00:00
H.J. Lu
afec409af9 Change __x86_64 prefix in cache size to __x86 2013-01-05 16:00:38 -08:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
H.J. Lu
b090e8ea45 Add i686 __libc_ifunc_impl_list 2012-10-11 16:40:02 -07:00
Liubov Dmitrieva
22bf5c1793 Add optimized sincosf for SSE2 for x86 and x86-64 2012-09-25 20:47:20 +02:00
Liubov Dmitrieva
80ccd52c95 Fix x86 SSE cosf, sinf issues
* sysdeps/i386/i686/fpu/multiarch/s_sinf-sse2.S: Fix
	unwind info if defined PIC. Fix special cases description.
	* sysdeps/i386/i686/fpu/multiarch/s_cosf-sse2.S: Likewise.

	* sysdeps/x86_64/fpu/s_sinf.S: Fix special cases description, fix
	DP_HI_MASK entry.
	* sysdeps/x86_64/fpu/s_cosf.S: Likewise.
2012-09-10 11:44:49 +02:00
Liubov Dmitrieva
4ffffbd272 Add optimized sinf and cosf routines for x86 and x86-64
* sysdeps/i386/i686/fpu/multiarch/Makefile (sysdep_routines):
	Add s_sinf-sse2, s_conf-sse2.

	* sysdeps/i386/i686/fpu/multiarch/s_sinf-sse2.S: New file.
	* sysdeps/i386/i686/fpu/multiarch/s_cosf-sse2.S: New file.
	* sysdeps/i386/i686/fpu/multiarch/s_sinf.c: New file.
	* sysdeps/i386/i686/fpu/multiarch/s_cosf.c: New file.

	* sysdeps/ieee754/flt-32/s_sinf.c (SINF, SINF_FUNC): Add macros
	for using routine as __sinf_ia32.
	Use macro for function declaration and weak_alias.
	* sysdeps/ieee754/flt-32/s_cosf.c (COSF, COSF_FUNC): Add macros
	for using routine as __cosf_ia32.
	Use macro for function declaration and weak_alias.

	* sysdeps/i386/i686/fpu/multiarch/e_expf-sse2.S: Fix Copyright.
	* sysdeps/i386/i686/fpu/multiarch/e_expf.c: Fix Copyright.

	* sysdeps/x86_64/fpu/s_sinf.S: New file.
	* sysdeps/x86_64/fpu/s_cosf.S: New file.
	* sysdeps/x86_64/fpu/libm-test-ulps: Update.

	* math/libm-test.inc (cos_test): Add more test cases.
	(sin_test): Likewise.
	(sincos_test): Likewise.
2012-09-03 15:32:13 +02:00
Andreas Jaeger
1afbc875e3 Remove executable permissions checked in by accident 2012-08-15 21:18:44 +02:00
Liubov Dmitrieva
b3f479a85a Fix segmentation fault in strncasecmp for i686
2012-08-15  Liubov Dmitrieva  <liubov.dmitrieva@gmail.com>

	[BZ #14195]
        * sysdeps/i386/i686/multiarch/strcmp-sssse3.S: Fix
        segmentation fault for a case of two empty input strings.
	* string/test-strncasecmp.c (check1): Renamed to...
	(bz12205): ...this.
	(bz14195): Add new testcase for two empty input strings and N > 0.
	(test_main): Call new testcase, adapt for renamed function.
2012-08-15 21:06:55 +02:00
H.J. Lu
f85fa27058 Avoid DWARF definition DIE on ifunc symbols 2012-08-09 16:04:37 -07:00
Marek Polacek
b67e9372b2 Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}. 2012-08-02 21:04:29 +02:00
Andreas Jaeger
d8d1017e5e Fix warnings in wcschr-c.c
Fixes:
In file included from ../sysdeps/i386/i686/multiarch/wcschr-c.c:8:0:
../wcsmbs/wcschr.c:26:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
../wcsmbs/wcschr.c:37:1: warning: data definition has no type or storage class [enabled by default]
../wcsmbs/wcschr.c:37:1: warning: type defaults to ‘int’ in declaration of ‘__hidden_ver1’ [enabled by default]
../wcsmbs/wcschr.c:37:1: warning: parameter names (without types) in function declaration [enabled by default]
2012-05-21 22:27:11 +02:00
Carlos O'Donell
1a0994f535 BZ#14059: Fix AVX and FMA4 detection.
Fix AVX and FMA4 detection by following the guidelines
set out by Intel and AMD for detecting these features.
2012-05-17 06:59:28 -07:00
Liubov Dmitrieva
d7bb4c428a Add optimized expf for x86
2012-05-14  Liubov Dmitrieva  <liubov.dmitrieva@gmail.com>

	* sysdeps/i386/i686/fpu/multiarch/Makefile: New file.
	* sysdeps/i386/i686fpu/multiarch/e_expf.c: New file.
	* sysdeps/i386/i686fpu/multiarch/e_expf-ia32.S: New file.
	* sysdeps/i386/i686/fpu/multiarch/e_expf-sse2.S: New file.
2012-05-14 11:23:56 +02:00
Mike Frysinger
3884932b78 memset: also update copyright years
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-08 14:20:37 -04:00
Mike Frysinger
1e4920e080 memset: fix define usage for shared libs
The proper define to check "am I in a shared lib" is "SHARED", not "PIC".
The two new memset_chk functions incorrectly depend on "PIC".

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-07 16:33:50 -04:00
Liubov Dmitrieva
4b43400f6a optimize the following memcpy: sysdeps/i386/i686/multiarch/memcpy-ssse3.S
I've improved the following implementation of memcpy:
"sysdeps/i386/i686/multiarch/memcpy-ssse3.S".

The patch includes some minor style fixes, but the important part is
just using prefetch loops for the case:

DATA_CACHE_SIZE_HALF <= len <  SHARED_CACHE_SIZE_HALF and
src and dst pointers have unequal 16 byte alignments.

This gives from 6% - 50% performance boost on the atom machine, about
24,73% in geometric mean.
2012-03-30 16:45:27 -04:00
H.J. Lu
eb96ffb07d Move stdio-common/_itoa.h to sysdeps/generic 2012-03-20 16:00:23 -07:00
Joseph Myers
0bab47b6b2 Fix x86 strcasecmp_l (bug 13786). 2012-02-29 22:37:38 +00:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Marek Polacek
622c86f480 Remove __ELF__ conditionals 2012-02-07 00:41:11 +01:00
Joseph Myers
9a1d92541f Consistently use macros for x86 PIC thunks. 2012-02-03 23:22:53 +00:00
Liubov Dmitrieva
c044cf14b0 Fix wrong copying processing for last bytes in x86-32 wcscpy
Wrong copy algorithm for last bytes, not thread safety.
In some particular cases it uses the destination
memory beyond the string end for
16-byte load, puts changes into that part that is relevant
to destination string and writes whole 16-byte chunk into memory.
I have a test case where the memory beyond the string end contains
malloc/free data, that appear corrupted in case free() updates
it in between the 16-byte read and 16-byte write.
2011-12-23 08:50:39 -05:00
Liubov Dmitrieva
2bd779ae3f Fix overrun in strcpy destination buffer in x86-32/SSSE3 version 2011-12-22 14:22:00 -05:00
Ulrich Drepper
1d3e4b618a Optimized wcschr and wcscpy for x86-64 and x86-32 2011-12-17 14:39:23 -05:00
Andreas Schwab
5583a0862c Fix SSSE3/SSE4.2 strcasecmp[_l]/strncasecmp[_l] for non-PIC and -mno-tls-direct-seg-refs 2011-11-16 11:48:10 +01:00
Ulrich Drepper
6abf346582 Add SSE4.2 support for strcasecmp and strncasecmp on x86-32 2011-11-14 18:24:35 -05:00
Ulrich Drepper
76e3966e9e SSSE3 optimized strcasecmp and strncasecmp for x86-32 2011-11-13 09:50:13 -05:00
Ulrich Drepper
e7f4b08ee9 Fix warnings in fallback C code of x86-32 wide memory functions 2011-11-12 00:50:26 -05:00
Ulrich Drepper
fe72eebd67 Remove unnecessary code from x86-32 SSSE3 strncmp 2011-11-08 07:50:20 -05:00
Andreas Schwab
0c92d8a87a Fix some warning nits 2011-10-28 12:02:08 +02:00
Andreas Schwab
b43433460b Move wide char related routines to wcsmbs subdir 2011-10-28 12:01:29 +02:00
Ulrich Drepper
2fa2ae85ca Fix strnlen change 2011-10-23 16:30:40 -04:00
Liubov Dmitrieva
fc2ee42abe Add optimized wcslen and strnlen for x86-32 2011-10-23 15:17:23 -04:00
Michael Zolotukhin
979c70a3b1 Improve x86-32 SSSE3 memcpy 2011-10-23 14:28:26 -04:00
Ulrich Drepper
f17424ed53 Fix WS 2011-10-23 13:35:24 -04:00
Liubov Dmitrieva
95584d3b33 Fix signedness in wcscmp comparison 2011-10-23 13:34:15 -04:00
Ulrich Drepper
79b195b55a No need for boundary case handling in x86-32 __ieee_log 2011-10-15 22:21:53 -04:00