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388 Commits

Author SHA1 Message Date
Joseph Myers
601a3a5fd5 Convert TEST_ff_f tests from code to data. 2013-05-12 13:17:09 +00:00
Joseph Myers
d8cd06db62 Improve tgamma accuracy (bugs 2546, 2560, 5159, 15426). 2013-05-08 11:58:18 +00:00
Joseph Myers
10de07f5fd Fix catan, catanh spurious underflows (bug 15423). 2013-05-01 10:07:00 +00:00
Joseph Myers
caf84319c1 Fix catan, catanh inaccuracy from atan2 denominators near 0 (bug 15416). 2013-04-30 11:27:35 +00:00
Joseph Myers
5b4217d71f Fix catan, catanh spurious overflows (bug 15409). 2013-04-27 14:57:41 +00:00
Allan McRae
4721b2d1ca Update i386 libm-test ULPs 2013-04-27 15:13:12 +10:00
Joseph Myers
2f38fbfe09 Fix catan, catanh inaccuracy through use of log (bug 15394). 2013-04-24 18:49:13 +00:00
Carlos O'Donell
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
Thomas Schwinge
74d87055bf Refer to two GCC PRs. 2013-04-03 14:13:44 +02:00
Joseph Myers
52ce486045 Fix cacosh inaccuracy and spurious exceptions (bug 15327). 2013-04-02 22:54:00 +00:00
Joseph Myers
ccc8cadf75 Fix casinh inaccuracy for imaginary part < 1.0, real part small (bug 10357). 2013-03-30 13:31:53 +00:00
Joseph Myers
3a7182a14b Fix casinh inaccuracy near i, imaginary part > 1 (bug 15307). 2013-03-27 14:38:44 +00:00
Thomas Schwinge
5aa4a1a1fd On 32-bit x86, disable certain tests involving sNaN values. 
Follow-up to commit 495ded2c8c.
 2013-03-21 16:05:29 +01:00
Joseph Myers
98c48fe5cc Fix Bessel function spurious overflows for ldbl-128 / ldbl-128ibm (bug 15285). 2013-03-21 13:57:21 +00:00
Joseph Myers
0a1b2ae6f6 Fix casinh inaccuracy for argument with imaginary part 1 (bug 15287). 2013-03-21 10:27:10 +00:00
Joseph Myers
d2f9799e7c Fix y1l spurious overflows for ldbl-96 (bug 15283). 2013-03-16 17:51:48 +00:00
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
e97ed6ddbe Remove bp-sym.h and BP_SYM uses from C code. 2013-02-14 13:12:02 +00:00
Joseph Myers
8cf28c5ebe Fix casinh spurious underflows away from [-i,i] (bug 15062). 2013-01-31 22:55:29 +00:00
Siddhesh Poyarekar
0b57daebab Fix application of the exception mask 
Fixes BZ #14496.
 2013-01-18 14:16:25 +05:30
Joseph Myers
728d7b43fc Fix cacos real-part inaccuracy for result real part near 0 (bug 15023). 2013-01-17 20:25:51 +00:00
Joseph Myers
a9708fed77 Fix casinh, casin overflow (bug 14996). 2013-01-07 14:59:53 +00:00
Joseph Myers
cdc1c96fba Fix casinh, casin inaccuracy from cancellation (bug 14994). 2013-01-04 13:25:17 +00:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Joseph Myers
1bead169c3 Fix powl inaccuracy for x86_64 and x86 (bug 13881). 2012-11-28 13:40:54 +00:00
Andreas Schwab
fff1530e61 Update i386 libm-test ULPs 2012-11-22 14:59:33 +01:00
David S. Miller
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
Joseph Myers
60e235ee2a Fix spurious underflows from pow with results close to 1 (bug 14811). 2012-11-07 13:03:31 +00:00
Joseph Myers
5b5b04d628 Make fma use of Dekker and Knuth algorithms use round-to-nearest (bug 14796). 2012-11-03 19:48:53 +00:00
Joseph Myers
d032e0d29b Fix inaccuracy of clog, clog10 near |z| = 1 (bug 13629). 2012-09-25 19:43:49 +00:00
Liubov Dmitrieva
22bf5c1793 Add optimized sincosf for SSE2 for x86 and x86-64 2012-09-25 20:47:20 +02:00
Allan McRae
19fcedd5fc Update i386 ULPs for recently added math tests 2012-09-12 13:58:53 +10:00
Andreas Jaeger
bcd6c8dc64 Update libm-test-ulps 2012-09-03 15:43:56 +02:00
Andreas Jaeger
fab967007b Another ULPs update. 2012-08-14 08:04:51 +02:00
Andreas Jaeger
e11f5155b2 Update i386 ULPs 2012-08-14 08:02:08 +02:00
Marek Polacek
b67e9372b2 Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}. 2012-08-02 21:04:29 +02:00
Joseph Myers
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
Joseph Myers
da865e95bc Improve clog, clog10 handling of values with real or imaginary part 1 (bug 13629). 2012-07-26 11:31:35 +00:00
Joseph Myers
638a572eb0 Fix clog, clog10 spurious underflow exceptions (bug 14337). 2012-07-09 11:06:34 +00:00
Joseph Myers
9ad63c23ea Fix tanf underflow close to pi/4 (bug 14154). 2012-07-06 21:19:38 +00:00
Joseph Myers
f17ac40d7c Fix expm1 spurious underflow exceptions (bug 6778). 2012-07-06 11:17:41 +00:00
Joseph Myers
cdfe2c5eb3 Fix csqrt underflow (bugs 14157, 14331). 2012-07-05 11:02:13 +00:00
Joseph Myers
ca61cf32d9 Fix ctan, ctanh of subnormals in round-upwards mode (bug 14328). 2012-07-04 09:55:26 +00:00
Joseph Myers
7a845b2c23 Fix float range reduction problems (bug 14283). 2012-07-03 17:11:41 +00:00
H.J. Lu
25f1282ae5 Use i386 bits/mathinline.h for i386 and x86_64 2012-06-15 13:56:26 -07:00
H.J. Lu
ed1825f858 Disable x87 inline functions for x86-64 2012-06-15 13:53:27 -07:00
H.J. Lu
ddb2897514 Add SSE math and C++ namespace to i386 bits/mathinline.h 2012-06-12 21:10:00 -07:00
H.J. Lu
c08010c7cd Use x86_64 fpu/bits/fenv.h for i386 and x86_64 2012-06-06 10:13:19 -07:00
Joseph Myers
795405f956 Don't include exceptions in libm-test-ulps test names. 2012-05-24 12:14:03 +00:00
Joseph Myers
80bad0ccae Test underflow exceptions in libm-test.inc. 2012-05-24 11:26:36 +00:00
Joseph Myers
e0b16cc25c Fix ccos, csin, ccosh, csinh overflows (bug 14123). 2012-05-19 15:35:29 +00:00
Andreas Jaeger
caae5a8101 Remove unused functions from i386/mathinline.h 2012-05-14 16:13:24 +02:00
Joseph Myers
495fd99f3a Fix x86/x86_64 expm1l inaccuracy and exceptions (bugs 13885, 13923). 2012-05-07 19:13:08 +00:00
Joseph Myers
d8b82cad1b Fix exp10 inaccuracy and exceptions (bugs 13884, 13914). 2012-05-06 18:23:44 +00:00
Joseph Myers
41498f4db1 Fix missing exceptions from exp (bugs 13787, 13922, 14036). 2012-05-05 19:37:39 +00:00
Joseph Myers
6698b8bf43 Use .S sources for x86/x86_64 expl. 2012-05-05 19:34:31 +00:00
Andreas Jaeger
0c51e5500a Update sysdeps/i386/fpu/libm-test-ulps 2012-05-03 16:22:52 +02:00
Joseph Myers
7cb029ee6e Fix nexttoward bugs (bugs 2550, 2570). 2012-05-01 15:37:43 +00:00
Joseph Myers
adfbc8ac9e Fix x86 acos near 1 (bug 13942). 2012-04-30 18:56:39 +00:00
Joseph Myers
5ba3cc691c Fix acos (-1) in round-downwards mode on x86 (bug 14034). 2012-04-30 09:38:06 +00:00
Andreas Schwab
fb5e92c979 Remove useless __ilogb*_finite aliases 2012-04-18 00:40:13 +02:00
Adhemerval Zanella
76da726532 Fix ilogb exception and errno (bug 6794) 
[BZ #6794]
Following Joseph comments about bug 6794, here is a proposed fix. It turned out
to be a large fix mainly because I had to move some file along to follow libm
files/names conventions.

Basically I have added wrappers (w_ilogb.c, w_ilogbf.c, w_ilogbl.c) that now calls
the symbol '__ieee754_ilogb'. The wrappers checks for '__ieee754_ilogb' output and
set the errno and raise exceptions as expected.

The '__ieee754_ilogb' is implemented in sysdeps. I have moved the 's_ilogb[f|l]' files
to e_ilogb[f|l] and renamed the '__ilogb[f|l]' to '__ieee754_ilogb[f|l]'.

I also found out a bug in i386 and x86-64 assembly coded ilogb implementation where
it raises a FE_DIVBYZERO when argument is '0.0'. I corrected this issue as well.

Finally I added the errno and FE_INVALID tests for 0.0, NaN and +-InF argument. Tested
on i386, x86-64, ppc32 and ppc64.
 2012-04-17 22:12:53 +02:00
Marek Polacek
751728a1f1 Reverse arguments of fdivp in i386 code. 2012-04-16 11:03:41 +02:00
Joseph Myers
8f9a2faee0 Fix spurious overflow exceptions from x86/x86_64 powl (bug 13872). 2012-04-09 22:32:45 +00:00
Joseph Myers
bcc8d6617b Fix ctan, ctanh overflow (bug 11521). 2012-04-09 22:31:35 +00:00
Roland McGrath
8de131cbff Fix missing clobber in i386 __sincos_code asm. 2012-04-09 12:20:48 -07:00
Joseph Myers
c483f6b4a4 Fix x86 pow inaccuracy for large integer exponents (bug 706). 2012-04-09 09:42:05 +00:00
Joseph Myers
d6270972f7 Fix pow of negative numbers to integer exponents (bugs 369, 2678, 3866). 2012-03-28 14:57:58 +00:00
Joseph Myers
7c69cd143b Fix cexp overflow (bug 13892). 2012-03-22 19:38:09 +00:00
Joseph Myers
1a4ac776eb Remove inaccurate x86 cexp implementations (bug 13883). 2012-03-21 15:28:05 +00:00
Joseph Myers
2460d3aa21 Fix pow of zero and infinity to large powers. 2012-03-21 12:16:00 +00:00
Joseph Myers
1897ad4432 Fix clog overflow/underflow (bug 13629). 2012-03-19 20:14:26 +00:00
Richard Henderson
bd37f2ee31 Optimize private 387 fenv access; share code between i386 and x86_64. 2012-03-19 06:51:39 -07:00
Richard Henderson
d0adc92230 i386/x86_64: Optimize feholdexcept. 2012-03-19 06:51:06 -07:00
Richard Henderson
7d2e8012cf i386: Convert libc_{feholdexcept_setround,updateenv}_53bit to functions. 
Also fix a bug in libc_feupdateenv_53bit: don't force the rounding
precision back to _FPU_EXTENDED, instead restore the precision that
the user had in effect beforehand.
 2012-03-19 06:49:04 -07:00
Joseph Myers
c36e1d2369 Disable Bessel function TLOSS errors in POSIX mode. 2012-03-16 20:08:02 +00:00
Joseph Myers
11b90b9f50 Fix tan, tanl for large inputs. 2012-03-16 20:05:37 +00:00
Joseph Myers
8848d99dce Implement ldbl-96 sinl / cosl / sincosl (bug 13851). 2012-03-16 12:30:05 +00:00
Andreas Jaeger
d5ce0ef38d Update 2012-03-15 18:03:38 +01:00
Andreas Jaeger
ee010c9e95 * sysdeps/i386/fpu/s_tanf.S: Delete so that i386 uses the 
ieee754/flt-32 implementation for tan.
* math/libm-test.inc (tan_test): Add tests for large input.
* sysdeps/i386/fpu/libm-test-ulps: Update.
 2012-03-15 17:34:24 +01:00
Andreas Jaeger
8c0247db32 [BZ #13852] 
* sysdeps/i386/fpu/e_rem_pio2f.c: Delete so that i386 uses the
	ieee754/flt-32 implementation.
	* sysdeps/i386/fpu/k_rem_pio2f.c: Likewise.
	* sysdeps/i386/fpu/s_cosf.S: Likewise.
	* sysdeps/i386/fpu/s_sincosf.S: Likewise.
	* sysdeps/i386/fpu/s_sinf.S: Likewise.

	* math/libm-test.inc (cos_test): Enable some large input tests for
	float as well
	(sin_test): Likewise.
	(sincos_test): Likewise.
	* sysdeps/i386/fpu/libm-test-ulps: Update.
 2012-03-15 17:23:43 +01:00
Andreas Jaeger
ad6e0564b8 Cleanup formatting. 2012-03-15 14:14:39 +01:00
Andreas Jaeger
22417c803d Update ULPs. 2012-03-14 17:23:31 +01:00
Andreas Jaeger
c4814b6b3a Implement and use libc_feholdexcept_setround_53bit and libc_feupdateenv_53bit 
so that double arithmetic in s_sin is done in 53 bit (without extend i386 double precision)
 2012-03-14 17:20:10 +01:00
Andreas Jaeger
1e2405c8fa Remove files so that i386 uses the iee754/dbl-64 sin and cos implementation. 2012-03-14 17:09:07 +01:00
Joseph Myers
e456826d7a Fix csqrt overflow/underflow (bug 13841). 2012-03-14 11:53:32 +00:00
Richard Henderson
b8c036204f Use include_next to chain math_private.h headers. 2012-03-09 16:11:26 -08:00
Richard Henderson
1ed0291c31 Use <> for math.h and math_private.h everywhere. 
Entire tree edited via find | grep | sed.
 2012-03-09 16:09:10 -08:00
Joseph Myers
d1d3431a3a Fix signs of zeros from casinh, cacosh etc. (bug 10716). 2012-03-07 15:15:19 +00:00
Andreas Jaeger
30ee4ced20 * sysdeps/i386/fpu/libm-test-ulps: Update. 2012-03-05 13:37:29 +01:00
Joseph Myers
b7cd39e8f8 Fix pow in non-default rounding modes (bug 3976). 2012-03-05 12:22:46 +00:00
Joseph Myers
ca811b2256 Test cosh, sinh in non-default rounding modes (bug 3976). 2012-03-05 12:20:24 +00:00
Joseph Myers
804360ed83 Fix sin, cos, tan in non-default rounding modes (bug 3976). 2012-03-02 20:51:39 +00:00
Joseph Myers
28afd92dbd Fix exp in non-default rounding modes (bug 3976). 2012-03-02 15:12:53 +00:00
Joseph Myers
7b1902cb3e Improve erfc accuracy. 2012-03-01 21:15:38 +00:00
Joseph Myers
0fcad3e243 Add test for bug 5794 (incorrect expm1 overflow). 2012-02-29 20:49:20 +00:00
Joseph Myers
5b8a4d4a09 Reduce large expected errors from libm tests on x86 and x86_64. 2012-02-29 20:40:50 +00:00
Joseph Myers
5ad91f6e6f Resort ULPs files with gen-libm-test.pl -n in C locale. 2012-02-20 18:06:05 +00:00
Thomas Schwinge
7c35ffedf1 Fix x86 PLT slot usage for feraiseexcept. 
Then we're elf/check-localplt.out-clean again.
 2012-02-10 21:05:54 +01:00