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Fix spurious underflows in ldbl-128 atan implementation.

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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.
This commit is contained in:
David S. Miller
2012-11-19 15:26:52 -08:00
parent 877f2d8e8d
commit 6d33cc9d9b
5 changed files with 38 additions and 0 deletions
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sysdeps/sparc/fpu/libm-test-ulps
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@ -102,6 +102,9 @@ float: 1
ifloat: 1
ildouble: 1
ldouble: 1
Test "atan2 (-max_value, -min_value) == -pi/2":
float: 1
ifloat: 1
Test "atan2 (0.75, -1.0) == 2.49809154479650885165983415456218025":
float: 1
ifloat: 1