From f00faa4a43706d85ad8d4d2c970d3f52f0f63bfb Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Thu, 9 Jun 2016 18:04:30 +0000 Subject: Fix i386/x86_64 log2l (sNaN) (bug 20235). The i386/x86_64 versions of log2l return sNaN for sNaN input. This patch fixes them to add NaN inputs to themselves so that qNaN is returned in this case. Tested for x86_64 and x86. [BZ #20235] * sysdeps/i386/fpu/e_log2l.S (__ieee754_log2l): Add NaN input to itself. * sysdeps/x86_64/fpu/e_log2l.S (__ieee754_log2l): Likewise. * math/libm-test.inc (log2_test_data): Add sNaN tests. --- ChangeLog | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'ChangeLog') diff --git a/ChangeLog b/ChangeLog index 81192ce5b8..c0a32785e7 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,11 @@ 2016-06-09 Joseph Myers + [BZ #20235] + * sysdeps/i386/fpu/e_log2l.S (__ieee754_log2l): Add NaN input to + itself. + * sysdeps/x86_64/fpu/e_log2l.S (__ieee754_log2l): Likewise. + * math/libm-test.inc (log2_test_data): Add sNaN tests. + [BZ #20234] * sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Add positive infinity or NaN input to itself. -- cgit 1.4.1