2f38fbfe09
Fix catan, catanh inaccuracy through use of log (bug 15394).
2013-04-24 18:49:13 +00:00
aba5e333d4
libm-test.inc: Fix tests where cos(PI/2) != 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.
2013-04-11 08:52:18 -04:00
74d87055bf
Refer to two GCC PRs.
2013-04-03 14:13:44 +02:00
52ce486045
Fix cacosh inaccuracy and spurious exceptions (bug 15327).
2013-04-02 22:54:00 +00:00
ccc8cadf75
Fix casinh inaccuracy for imaginary part < 1.0, real part small (bug 10357).
2013-03-30 13:31:53 +00:00
3a7182a14b
Fix casinh inaccuracy near i, imaginary part > 1 (bug 15307).
2013-03-27 14:38:44 +00:00
5aa4a1a1fd
On 32-bit x86, disable certain tests involving sNaN values.
...
Follow-up to commit 495ded2c8c
2013-03-21 16:05:29 +01:00
98c48fe5cc
Fix Bessel function spurious overflows for ldbl-128 / ldbl-128ibm (bug 15285).
2013-03-21 13:57:21 +00:00
0a1b2ae6f6
Fix casinh inaccuracy for argument with imaginary part 1 (bug 15287).
2013-03-21 10:27:10 +00:00
d2f9799e7c
Fix y1l spurious overflows for ldbl-96 (bug 15283).
2013-03-16 17:51:48 +00:00
2366713d87
Remove remaining bounded-pointers support from i386 .S files.
2013-02-21 22:21:52 +00:00
92945b5261
Remove some bounded-pointers support from i386 .S files.
2013-02-19 21:58:08 +00:00
e97ed6ddbe
Remove bp-sym.h and BP_SYM uses from C code.
2013-02-14 13:12:02 +00:00
8cf28c5ebe
Fix casinh spurious underflows away from [-i,i] (bug 15062).
2013-01-31 22:55:29 +00:00
0b57daebab
Fix application of the exception mask
...
Fixes BZ #14496 .
2013-01-18 14:16:25 +05:30
728d7b43fc
Fix cacos real-part inaccuracy for result real part near 0 (bug 15023).
2013-01-17 20:25:51 +00:00
a9708fed77
Fix casinh, casin overflow (bug 14996).
2013-01-07 14:59:53 +00:00
cdc1c96fba
Fix casinh, casin inaccuracy from cancellation (bug 14994).
2013-01-04 13:25:17 +00:00
568035b787
Update copyright notices with scripts/update-copyrights.
2013-01-02 19:05:09 +00:00
1bead169c3
Fix powl inaccuracy for x86_64 and x86 (bug 13881).
2012-11-28 13:40:54 +00:00
fff1530e61
Update i386 libm-test ULPs
2012-11-22 14:59:33 +01:00
05b227bdae
Correct tinyness handling in long-double and float y0/y1.
...
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.
2012-11-18 12:33:53 -08:00
60e235ee2a
Fix spurious underflows from pow with results close to 1 (bug 14811).
2012-11-07 13:03:31 +00:00
5b5b04d628
Make fma use of Dekker and Knuth algorithms use round-to-nearest (bug 14796).
2012-11-03 19:48:53 +00:00
d032e0d29b
Fix inaccuracy of clog, clog10 near |z| = 1 (bug 13629).
2012-09-25 19:43:49 +00:00
22bf5c1793
Add optimized sincosf for SSE2 for x86 and x86-64
2012-09-25 20:47:20 +02:00
19fcedd5fc
Update i386 ULPs for recently added math tests
2012-09-12 13:58:53 +10:00
bcd6c8dc64
Update libm-test-ulps
2012-09-03 15:43:56 +02:00
fab967007b
Another ULPs update.
2012-08-14 08:04:51 +02:00
e11f5155b2
Update i386 ULPs
2012-08-14 08:02:08 +02:00
b67e9372b2
Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}.
2012-08-02 21:04:29 +02:00
d0419dbfbd
Improve clog, clog10 handling of values with real or imaginary part slightly above 1 (bug 13629).
2012-07-31 14:21:19 +00:00
da865e95bc
Improve clog, clog10 handling of values with real or imaginary part 1 (bug 13629).
2012-07-26 11:31:35 +00:00
638a572eb0
Fix clog, clog10 spurious underflow exceptions (bug 14337).
2012-07-09 11:06:34 +00:00
9ad63c23ea
Fix tanf underflow close to pi/4 (bug 14154).
2012-07-06 21:19:38 +00:00
f17ac40d7c
Fix expm1 spurious underflow exceptions (bug 6778).
2012-07-06 11:17:41 +00:00
cdfe2c5eb3
Fix csqrt underflow (bugs 14157, 14331).
2012-07-05 11:02:13 +00:00
ca61cf32d9
Fix ctan, ctanh of subnormals in round-upwards mode (bug 14328).
2012-07-04 09:55:26 +00:00
7a845b2c23
Fix float range reduction problems (bug 14283).
2012-07-03 17:11:41 +00:00
25f1282ae5
Use i386 bits/mathinline.h for i386 and x86_64
2012-06-15 13:56:26 -07:00
ed1825f858
Disable x87 inline functions for x86-64
2012-06-15 13:53:27 -07:00
ddb2897514
Add SSE math and C++ namespace to i386 bits/mathinline.h
2012-06-12 21:10:00 -07:00
c08010c7cd
Use x86_64 fpu/bits/fenv.h for i386 and x86_64
2012-06-06 10:13:19 -07:00
795405f956
Don't include exceptions in libm-test-ulps test names.
2012-05-24 12:14:03 +00:00
80bad0ccae
Test underflow exceptions in libm-test.inc.
2012-05-24 11:26:36 +00:00
e0b16cc25c
Fix ccos, csin, ccosh, csinh overflows (bug 14123).
2012-05-19 15:35:29 +00:00
caae5a8101
Remove unused functions from i386/mathinline.h
2012-05-14 16:13:24 +02:00
495fd99f3a
Fix x86/x86_64 expm1l inaccuracy and exceptions (bugs 13885, 13923).
2012-05-07 19:13:08 +00:00
d8b82cad1b
Fix exp10 inaccuracy and exceptions (bugs 13884, 13914).
2012-05-06 18:23:44 +00:00
41498f4db1
Fix missing exceptions from exp (bugs 13787, 13922, 14036).
2012-05-05 19:37:39 +00:00
Joseph Myers