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authorDavid S. Miller <davem@davemloft.net>2012-11-19 15:26:52 -0800
committerDavid S. Miller <davem@davemloft.net>2012-11-19 15:31:24 -0800
commit6d33cc9d9bde501e0906c42ee396d42cb4ca603c (patch)
treefa106d1ac0b43e69180ba0e497321d56210d4a92 /sysdeps/x86_64
parent877f2d8e8def5a278e4b9f4e4dc378f7f8a653b8 (diff)
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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.
Diffstat (limited to 'sysdeps/x86_64')
-rw-r--r--sysdeps/x86_64/fpu/libm-test-ulps3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps
index 4767be94db..f33dfed3df 100644
--- a/sysdeps/x86_64/fpu/libm-test-ulps
+++ b/sysdeps/x86_64/fpu/libm-test-ulps
@@ -162,6 +162,9 @@ ldouble: 1
 Test "atan2 (-0.75, -1.0) == -2.49809154479650885165983415456218025":
 float: 1
 ifloat: 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