about summary refs log tree commit diff
path: root/math
diff options
context:
space:
mode:
authorJoseph Myers <joseph@codesourcery.com>2016-06-08 23:11:42 +0000
committerJoseph Myers <joseph@codesourcery.com>2016-06-08 23:11:42 +0000
commit8c010e2f7135902b6dc90f0577573dacbb54cde9 (patch)
treecbd59f1350f8c5a0c0900c1fec63f849a8d66077 /math
parent09096b36152dca599ca781b7299d0d662ca74ce7 (diff)
downloadglibc-8c010e2f7135902b6dc90f0577573dacbb54cde9.tar.gz
glibc-8c010e2f7135902b6dc90f0577573dacbb54cde9.tar.xz
glibc-8c010e2f7135902b6dc90f0577573dacbb54cde9.zip
Fix i386/x86_64 log1pl (sNaN) (bug 20229).
The i386/x86_64 versions of log1pl 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 #20229]
	* sysdeps/i386/fpu/s_log1pl.S (__log1pl): Add NaN input to itself.
	* sysdeps/x86_64/fpu/s_log1pl.S (__log1pl): Likewise.
	* math/libm-test.inc (log1p_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 e2a4ed38bc..4371c4ca7b 100644
--- a/math/libm-test.inc
+++ b/math/libm-test.inc
@@ -9049,6 +9049,8 @@ static const struct test_f_f_data log1p_test_data[] =
     TEST_f_f (log1p, plus_infty, plus_infty, ERRNO_UNCHANGED),
     TEST_f_f (log1p, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
     TEST_f_f (log1p, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED),
+    TEST_f_f (log1p, snan_value, qnan_value, INVALID_EXCEPTION),
+    TEST_f_f (log1p, -snan_value, qnan_value, INVALID_EXCEPTION),
 
     AUTO_TESTS_f_f (log1p),
   };