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422 Commits

Author SHA1 Message Date
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Siddhesh Poyarekar
0f5477af5d Fix values in __mpexp_twomm1 2013-01-02 17:43:35 +05:30
Siddhesh Poyarekar
44e0d4c20c Split mantissa calculation loop and add branch prediction 2013-01-02 11:44:13 +05:30
Siddhesh Poyarekar
4d55b4e596 Add assert for potential access beyond array bounds in m1np 
The mpexp code has an access into m1np:

  for (i=n-1; i>0; i--,n--) { if (m1np[i][p]+m2>0) break; }

which could break for p >= 18 or i >= 7.  Fortunately this code is
never called due to the way the exp function is implemented since
values having exponent less than -55 return 1.0.  Make sure that if it
gets called in future, it is trapped.
 2013-01-02 11:33:11 +05:30
Siddhesh Poyarekar
da08f647d5 Move more constants into static variables 
Code cleanup.
 2013-01-02 10:07:50 +05:30
Joseph Myers
f4cf5f2d8b Add script to update copyright notices and reformat some to facilitate its use. 2013-01-01 16:29:10 +00:00
Siddhesh Poyarekar
18ea052c3e Favour normal numbers 2012-12-31 16:05:13 +05:30
Siddhesh Poyarekar
085ec079e3 Demystify the magic number 134217729.0 
The number 134217729.0 gets used in various places in e_pow.c but
there is no explanation of what that number is.  Add that explanation.
 2012-12-29 06:56:04 +05:30
Siddhesh Poyarekar
d63f73be34 Remove unnecessary variable mptwoim1 
Code cleanup.
 2012-12-28 19:02:01 +05:30
Siddhesh Poyarekar
6d9f97e1f2 Replace more constants with their values 
Code cleanup.
 2012-12-28 18:53:17 +05:30
Siddhesh Poyarekar
99136f8202 Replace constants with preprocessor defines 
libm Code cleanup.
 2012-12-28 09:40:10 +05:30
Siddhesh Poyarekar
31a7fe5ca9 Remove redundant __mpexp_nn 
It's an array that stores integral float values of the offset.
 2012-12-27 20:43:55 +05:30
Siddhesh Poyarekar
b76eb5f076 Move mpone out to a global const 
Code cleanup.
 2012-12-27 20:43:24 +05:30
Joseph Myers
66ca5a5b93 Include stdlib.h in sysdeps/ieee754/ldbl-128ibm/x2y2m1l.c. 2012-12-05 20:03:45 +00:00
Joseph Myers
b37984ad36 Fix ldbl-128ibm "set but not used" warnings. 2012-12-04 21:19:17 +00:00
Joseph Myers
c33aa6e3e3 Fix "conflicting types for built-in function" warnings from nldbl-*.c. 2012-12-04 20:22:08 +00:00
Joseph Myers
b3b099af03 Fix powl inaccuracy for ldbl-128ibm (bug 14914). 2012-12-04 14:39:24 +00:00
Joseph Myers
9984dd0126 Use hex float 64-bit values in ldbl-96 asinl (bug 14803). 2012-11-28 21:46:16 +00:00
Joseph Myers
0a42601f27 Fix ldbl-128ibm atanl spurious underflows (bug 14871). 2012-11-22 19:56:47 +00:00
Joseph Myers
c60d3bf2fa Fix sign of inexact zero results for ldbl-128ibm fmal. 2012-11-22 15:00:35 +00:00
Joseph Myers
ef1e0867c0 Fix ldbl-128ibm powl spurious underflows. 2012-11-22 14:59:45 +00:00
Joseph Myers
1468ded38e Fix ldbl-128ibm hypotl internal underflows (bug 14869). 2012-11-22 14:58:41 +00:00
Joseph Myers
8e27e3cc45 Fix ldbl-128ibm hypotl inaccuracy for arguments with large ratio (bug 14868). 2012-11-22 14:57:22 +00:00
Joseph Myers
7c7feb4772 Fix expm1l spurious underflows for ldbl-128ibm. 2012-11-22 14:55:17 +00:00
Joseph Myers
cf9a5d1861 Fix set-but-not-used warnings in ldbl-128 nearbyintl, rintl. 2012-11-20 14:26:07 +00:00
David S. Miller
6d33cc9d9b Fix spurious underflows in ldbl-128 atan implementation. 
With help from Joseph Myers.
	* sysdeps/ieee754/ldbl-128/s_atanl.c (__atanl): Handle tiny and
	very large arguments properly.
	* math/libm-test.inc (atan_test): New tests.
	(atan2_test): New tests.
	* sysdeps/sparc/fpu/libm-test-ulps: Update.
	* sysdeps/x86_64/fpu/libm-test-ulps: Update.
 2012-11-19 15:31:24 -08:00
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
David S. Miller
8e18b86d4a Fix BZ #14811 for ldbl-128 too. 
[BZ #14811]
	* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Saturate
	nonzero exponents with absolute value below 0x1p-128 to +/-
	0x1p-128.
 2012-11-16 21:39:54 -08:00
David S. Miller
447885ebf1 Don't generate underflow for very small values in log1pl. 
* sysdeps/ieee754/ldbl-128/s_log1pl.c (__log1pl): If xm1 is
	smaller than LDBL_EPSILON/2.0L, just return xm1.
 2012-11-16 09:31:38 -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
82477c28f4 Fix fma underflows with small x * y (bug 14793). 2012-11-06 14:12:54 +00:00
Joseph Myers
a0c2940d67 Fix fma overflow results outside round-to-nearest mode (bug 14797). 2012-11-04 19:26:02 +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
473611b22d Fix fma (a, b, c) for small a * b (bugs 14784, 14785). 2012-11-01 16:47:26 +00:00
Joseph Myers
16a0e2ec87 Fix ldbl-128ibm atan2l for x near 1. 2012-10-31 20:44:59 +00:00
Joseph Myers
ef82f4da79 Fix fma underflow exceptions in after-rounding edge cases. 2012-10-31 13:01:17 +00:00
Joseph Myers
8627a2329c Fix fma missing underflows and bad results for some subnormal results (bugs 14152, 14783). 2012-10-30 13:54:50 +00:00
Roland McGrath
b8493de0ec Add missing magic to GLIBC_PROVIDES. 2012-10-09 15:41:30 -07:00
Joseph Myers
bec749fda1 Fix sign of inexact zero return from fma (bug 14645). 2012-10-01 08:30:06 +00:00
Joseph Myers
8ec5b01346 Fix sign of exact zero return from fma (bug 14638). 2012-09-29 18:31:54 +00:00
Steve Ellcey
40cb3caf83 Remove sysdeps/ieee754/ldbl-128/bits/huge_vall.h and let builds 
use bits/huge_vall.h instead.  There is no longer any need for
the special huge_vall.h file.
 2012-09-27 14:06:11 -07:00
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
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
Marek Polacek
31035e80a4 Quash warning in s_sincosl. 2012-08-17 23:44:53 +02:00
Roland McGrath
bea9b19322 Fix lots of bitrot for stub configurations. 2012-07-30 16:34:33 -07:00
Marek Polacek
354691b7b5 Set up errno properly for yn. 2012-07-25 12:59:36 +02:00
Marek Polacek
541428fecf Fix ynl return value with LDBL_MIN. 2012-07-12 16:34:47 +02:00
Adhemerval Zanella
28cfe84316 Fix ctan, ctanh of subnormals in round-upwards mode (bug 14328). 
IBM long double fixes and POWER ulps update.
 2012-07-11 09:19:27 -03:00
Joseph Myers
9ad63c23ea Fix tanf underflow close to pi/4 (bug 14154). 2012-07-06 21:19:38 +00:00