From df179d88080ad7a733edccc655cf5f6bbec6f8fc Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 8 Jun 2016 22:24:06 +0000 Subject: Fix i386/x86_64 logl (sNaN) (bug 20227). The i386/x86_64 versions of logl 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 (including a build for i586 to cover the non-i686 logl version). [BZ #20227] * sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Add NaN input to itself. * sysdeps/i386/i686/fpu/e_logl.S (__ieee754_logl): Likewise. * sysdeps/x86_64/fpu/e_logl.S (__ieee754_logl): Likewise. * math/libm-test.inc (log_test_data): Add sNaN tests. --- math/libm-test.inc | 2 ++ 1 file changed, 2 insertions(+) (limited to 'math/libm-test.inc') diff --git a/math/libm-test.inc b/math/libm-test.inc index 35a256c..c16009b 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -8998,6 +8998,8 @@ static const struct test_f_f_data log_test_data[] = TEST_f_f (log, plus_infty, plus_infty, ERRNO_UNCHANGED), TEST_f_f (log, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), TEST_f_f (log, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_f (log, snan_value, qnan_value, INVALID_EXCEPTION), + TEST_f_f (log, -snan_value, qnan_value, INVALID_EXCEPTION), AUTO_TESTS_f_f (log), }; -- cgit v1.1