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* Fix catan, catanh spurious overflows (bug 15409).Joseph Myers2013-04-271-0/+50
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* Update i386 libm-test ULPsAllan McRae2013-04-271-0/+80
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* Fix catan, catanh inaccuracy through use of log (bug 15394).Joseph Myers2013-04-241-0/+2
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* Configuring for i386 is no longer supported.Carlos O'Donell2013-04-172-2/+22
| | | | | | | | | | | | | | | | | We no longer support configuring for i386, nor do we elide such a configuration to i686. Configuring with i386-* is a failure, and we provide an example of how to fix that. --- 2013-04-17 Carlos O'Donell <carlos@redhat.com> * configure.in: Remove i386 configure warning. Remove i386 case. * configure: Regenerate. * sysdeps/i386/configure.in: Raise error if config_machine is i386. Add example to error message. * sysdeps/i386/configure: Regenerate.
* libm-test.inc: Fix tests where cos(PI/2) != 0.Carlos O'Donell2013-04-111-14/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The value of PI is never exactly PI in any floating point representation, and the value of PI/2 is never PI/2. It is wrong to expect cos(M_PI_2l) to return 0, instead it will return an answer that is non-zero because M_PI_2l doesn't round to exactly PI/2 in the type used. That is to say that the correct answer is to do the following: * Take PI or PI/2. * Round to the floating point representation. * Take the rounded value and compute an infinite precision cos or sin. * Use the rounded result of the infinite precision cos or sin as the answer to the test. I used printf to do the type rounding, and Wolfram's Alpha to do the infinite precision cos calculations. The following changes bring x86-64 and x86 to 1/2 ulp for two tests. It shows that the x86 cos implementation is quite good, and that our test are flawed. Unfortunately given that the rounding errors are type dependent we need to fix this for each type. No regressions on x86-64 or x86. --- 2013-04-11 Carlos O'Donell <carlos@redhat.com> * math/libm-test.inc (cos_test): Fix PI/2 test. (sincos_test): Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Regenerate. * sysdeps/i386/fpu/libm-test-ulps: Regenerate.
* i386: Fail at configure time for i386 builds.Carlos O'Donell2013-04-062-0/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change does two things: * Treats a target i386-* as if it were i686. * Fails configure if the user is generating code for i386. We no longer support i386 code-generation because the i386 lacks the atomic operations we need in glibc. You can still configure for i386-*, but you get i686 code. You can't build with --march=i386, --mtune=i386 or a compiler that defaults to i386 code-generation. I've added two i386 entries in the master todo list to discuss merging and renaming: http://sourceware.org/glibc/wiki/Development_Todo/Master#i386 The failure modes are fail-safe here. You compile for i386, get i686, and try to run on i386 and it fails. The configure log has a warning saying we elided to i686. There is no situation that I can see where we run into any serious problems. The patch makes the current state better in that we get less confused users and we build successfully in more default configurations. The next enhancement would be to add --march=i?86 as suggested in #c20 of BZ#10062 for any i?86-* builds, which would solve the problem of a 32-bit compiler that defaults to i386 code-gen and glibc configured for i686-* target. Which previously failed at build time, and now will fail at configure time (requires adding --march=i686). Updated NEWS with BZ #10060 and #10062. No regressions. --- 2013-04-06 Carlos O'Donell <carlos@redhat.com> [BZ #10060, #10062] * aclocal.m4 (LIBC_COMPILER_BUILTIN_INLINED): New macro. * sysdeps/i386/configure.in: Use LIBC_COMPILER_BUILTIN_INLINED and fail configure if __sync_val_compare_and_swap is not inlined. * sysdeps/i386/configure: Regenerate. * configure.in: Build for i686 when configured for i386. * configure: Regenerate. * README: Remove i386 reference.
* Refer to two GCC PRs.Thomas Schwinge2013-04-031-1/+2
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* Fix cacosh inaccuracy and spurious exceptions (bug 15327).Joseph Myers2013-04-021-30/+692
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* Fix casinh inaccuracy for imaginary part < 1.0, real part small (bug 10357).Joseph Myers2013-03-301-152/+1030
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* Fix casinh inaccuracy near i, imaginary part > 1 (bug 15307).Joseph Myers2013-03-271-0/+340
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* On 32-bit x86, disable certain tests involving sNaN values.Thomas Schwinge2013-03-211-0/+26
| | | | Follow-up to commit 495ded2c8c1eb8c0ac4b54add2dd397852e19cba.
* Fix Bessel function spurious overflows for ldbl-128 / ldbl-128ibm (bug 15285).Joseph Myers2013-03-211-0/+6
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* Fix casinh inaccuracy for argument with imaginary part 1 (bug 15287).Joseph Myers2013-03-211-0/+678
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* Move system-specific settings out of toplevel configure.in and config.make.in.Joseph Myers2013-03-202-0/+18
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* Fix y1l spurious overflows for ldbl-96 (bug 15283).Joseph Myers2013-03-161-0/+12
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* Remove remaining bounded-pointers support from i386 .S files.Joseph Myers2013-02-2157-470/+306
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* Remove some bounded-pointers support from i386 .S files.Joseph Myers2013-02-1951-477/+27
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* Remove bounded-pointers build system support.Joseph Myers2013-02-151-2/+0
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* Remove miscellaneous bounded-pointers relics in C code.Joseph Myers2013-02-151-1/+1
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* Remove bp-sym.h and BP_SYM uses from C code.Joseph Myers2013-02-144-12/+8
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* Remove __ptrvalue, __bounded and __unbounded.Joseph Myers2013-02-131-3/+1
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* Remove CHECK_STRING, CHECK_STRING_NULL_OK and __ubp_memchr.Joseph Myers2013-02-041-3/+0
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* Fix casinh spurious underflows away from [-i,i] (bug 15062).Joseph Myers2013-01-311-0/+180
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* Fix application of the exception maskSiddhesh Poyarekar2013-01-181-1/+1
| | | | Fixes BZ #14496.
* Fix cacos real-part inaccuracy for result real part near 0 (bug 15023).Joseph Myers2013-01-171-0/+6
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* Implement x86 SIZE32/SIZE64 relocationsH.J. Lu2013-01-161-0/+9
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* Fix casinh, casin overflow (bug 14996).Joseph Myers2013-01-071-0/+12
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* Change __x86_64 prefix in cache size to __x86H.J. Lu2013-01-051-9/+0
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* Fix casinh, casin inaccuracy from cancellation (bug 14994).Joseph Myers2013-01-041-0/+41
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* Update copyright notices with scripts/update-copyrights.Joseph Myers2013-01-02234-241/+234
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* Fix powl inaccuracy for x86_64 and x86 (bug 13881).Joseph Myers2012-11-282-30/+34
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* Update i386 libm-test ULPsAndreas Schwab2012-11-221-6/+12
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* Correct tinyness handling in long-double and float y0/y1.David S. Miller2012-11-181-0/+25
| | | | | | | | | | | | | | | | | With help from Joseph Myers. * sysdeps/ieee754/flt-32/e_j0f.c (__ieee754_y0f): Adjust tinyness cutoff to 2**-13. * sysdeps/ieee754/flt-32/e_j1f.c (__ieee754_y1f): Adjust tinyness cutoff to 2**-25. * sysdeps/ieee754/ldbl-128/e_j0l.c (U0): New constant. ( __ieee754_y0l): Avoid arithmetic underflow when 'x' is very small. * sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_y1l): Likewise. * math/libm-test.inc (y0_test): New tests. (y1_test): New tests. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Update. * sysdeps/sparc/fpu/libm-test-ulps: Update.
* Fix spurious underflows from pow with results close to 1 (bug 14811).Joseph Myers2012-11-071-2/+21
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* Make fma use of Dekker and Knuth algorithms use round-to-nearest (bug 14796).Joseph Myers2012-11-032-1/+25
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* Use sysdeps/x86/tininess.h for i386 and x86_64H.J. Lu2012-10-301-1/+0
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* Fix strtod handling of underflow (bug 14047).Joseph Myers2012-10-301-0/+1
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* Add i686 __libc_ifunc_impl_listH.J. Lu2012-10-1142-0/+396
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* Add missing magic to GLIBC_PROVIDES.Roland McGrath2012-10-091-120/+2
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* Clean up init-first.c files.Roland McGrath2012-10-011-78/+0
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* Fix inaccuracy of clog, clog10 near |z| = 1 (bug 13629).Joseph Myers2012-09-251-0/+117
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* Add optimized sincosf for SSE2 for x86 and x86-64Liubov Dmitrieva2012-09-254-14/+637
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* Update i386 ULPs for recently added math testsAllan McRae2012-09-121-0/+8
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* Fix x86 SSE cosf, sinf issuesLiubov Dmitrieva2012-09-102-55/+40
| | | | | | | | | | * 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.
* Update libm-test-ulpsAndreas Jaeger2012-09-031-0/+3
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* Add optimized sinf and cosf routines for x86 and x86-64Liubov Dmitrieva2012-09-036-1/+1210
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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.
* Remove executable permissions checked in by accidentAndreas Jaeger2012-08-151-0/+0
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* Fix segmentation fault in strncasecmp for i686Liubov Dmitrieva2012-08-151-1/+1
| | | | | | | | | | | | 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.
* i386/x86_64: punt HAVE_CPP_ASM_DEBUGINFOMike Frysinger2012-08-143-112/+1
| | | | | | | | Pretty sure we require recent enough versions of gcc/binutils to make this check pointless. I can't any logs in the last few years where this check didn't return "yes". Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Another ULPs update.Andreas Jaeger2012-08-141-0/+1
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