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authorJoseph Myers <joseph@codesourcery.com>2016-06-08 22:59:18 +0000
committerJoseph Myers <joseph@codesourcery.com>2016-06-08 22:59:18 +0000
commit09096b36152dca599ca781b7299d0d662ca74ce7 (patch)
treebf45bbe7918449903521e6fd5df5819919f4a606 /math
parentdf179d88080ad7a733edccc655cf5f6bbec6f8fc (diff)
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Fix i386/x86_64 log10l (sNaN) (bug 20228).
The i386/x86_64 versions of log10l return sNaN for sNaN input.  This
patch fixes them to add a NaN input to itself so that qNaN is returned
in this case.

Tested for x86_64 and x86.

	[BZ #20228]
	* sysdeps/i386/fpu/e_log10l.S (__ieee754_log10l): Add NaN input to
	itself.
	* sysdeps/x86_64/fpu/e_log10l.S (__ieee754_log10l): Likewise.
	* math/libm-test.inc (log10_test_data): Add sNaN tests.
Diffstat (limited to 'math')
-rw-r--r--math/libm-test.inc2
1 files changed, 2 insertions, 0 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc
index c16009b9ae..e2a4ed38bc 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -9026,6 +9026,8 @@ static const struct test_f_f_data log10_test_data[] =
     TEST_f_f (log10, plus_infty, plus_infty, ERRNO_UNCHANGED),
     TEST_f_f (log10, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (log10, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (log10, snan_value, qnan_value, INVALID_EXCEPTION),
+    TEST_f_f (log10, -snan_value, qnan_value, INVALID_EXCEPTION),
 
     AUTO_TESTS_f_f (log10),
   };