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200 Commits

Author SHA1 Message Date
Joseph Myers 1bead169c3 Fix powl inaccuracy for x86_64 and x86 (bug 13881). 2012-11-28 13:40:54 +00:00
Joseph Myers 7184dcdf26 Disable some fma tests for ldbl-128ibm. 2012-11-22 19:57:58 +00:00
Joseph Myers 0a42601f27 Fix ldbl-128ibm atanl spurious underflows (bug 14871). 2012-11-22 19:56:47 +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 c9c0279bcb Mark some clog / clog10 underflows as expected for IBM long double. 2012-11-22 14:56:14 +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
Marcus Shawcroft 2fd8978571 Fix buffer overflow in libm-test.inc check_complex() 2012-11-15 18:02:03 +00:00
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
Joseph Myers f9b9d9c945 Don't call feclearexcept in gamma function tests. 2012-10-17 23:42:32 +00:00
Joseph Myers 0e8e0c1c93 Make libm-test.inc test comparison macros. 2012-10-09 23:34:12 +00:00
Joseph Myers ef1bb3618c Improve libm test coverage of classification macros / functions. 2012-10-08 22:22:23 +00:00
Joseph Myers 28234b077e Improve libm-test.inc comment. 2012-10-05 17:06:23 +00:00
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
Joseph Myers d032e0d29b Fix inaccuracy of clog, clog10 near |z| = 1 (bug 13629). 2012-09-25 19:43:49 +00:00
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
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
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
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
Joseph Myers e2283f38fe Add cosh tests for bug 14273. 2012-07-03 17:06:55 +00:00
Joseph Myers 10285c2113 Fix pow (0.0, -Inf) (bug 14241). 2012-06-15 11:27:51 +00:00
Joseph Myers 75fa192131 Allow more spurious underflow exceptions from csqrt and Bessel functions. 2012-06-14 14:35:24 +00:00
Joseph Myers c5bfe3d5ba Fix fmod for subnormals (bug 14048). 2012-06-01 19:05:46 +00:00
Marek Polacek d81dcb3569 Fix fma test for underflow. 2012-05-26 13:49:49 +02:00
Joseph Myers b65504975c Fix acosf underflow (bug 14153). 2012-05-25 11:07:07 +00:00
Joseph Myers 7a25eb06bf Add tests for underflow exception bugs 10846, 14036. 2012-05-24 15:36:54 +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
Chris Metcalf 0af797def3 math: support platforms with limited FP rounding or exception support 
For some tests, just claim that fetestexcept() always returns true,
so the rest of the test can be compiled.

For libm-test, provide known bogus values for unsupported rounding
modes, so fesetround() will return failure.

Elsewhere, just add some #ifdefs to avoid code that uses particular
FP exceptions if the exceptions aren't supported.
 2012-05-17 08:50:41 -04:00
Adhemerval Zanella 89c9aa491a Fix for logb/logbf/logbl (bugs 13954/13955/13956) 
POSIX 2008 states that if the input for 'logb[f|l]' is a subnormal number
it should be treated as if it were normalized.  This means the
implementation should calculate the log2 of the mantissa and add it to the
subnormal exponent (-126 for float and -1022 for double and IBM long
double).  This patch takes care of that.
 2012-05-10 15:11:55 -05:00
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 6c23e11c4d Fix libm-test.inc ulps calculation for subnormals (bug 14064). 2012-05-06 18:20:21 +00:00
Joseph Myers 5779f134a0 Disable one hypot test for inline double testing. 2012-05-05 19:38:31 +00:00