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| author | Joseph Myers <joseph@codesourcery.com> | 2016-06-09 18:04:30 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-06-09 18:04:30 +0000 |
| commit | f00faa4a43706d85ad8d4d2c970d3f52f0f63bfb (patch) | |
| tree | 3ab8e31041ab2f0cd87b4b1501c1570a10a2d7dd /math/libm-test.inc | |
| parent | b7519f61fe2c57981c69c0c65996968b9a4d9b62 (diff) | |
| download | glibc-f00faa4a43706d85ad8d4d2c970d3f52f0f63bfb.tar.gz glibc-f00faa4a43706d85ad8d4d2c970d3f52f0f63bfb.tar.xz glibc-f00faa4a43706d85ad8d4d2c970d3f52f0f63bfb.zip | |
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.
Diffstat (limited to 'math/libm-test.inc')
| -rw-r--r-- | math/libm-test.inc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/math/libm-test.inc b/math/libm-test.inc index 4371c4ca7b..2df6f29a34 100644 --- a/math/libm-test.inc +++ b/math/libm-test.inc @@ -9076,6 +9076,8 @@ static const struct test_f_f_data log2_test_data[] = TEST_f_f (log2, plus_infty, plus_infty, ERRNO_UNCHANGED), TEST_f_f (log2, qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), TEST_f_f (log2, -qnan_value, qnan_value, NO_INEXACT_EXCEPTION|ERRNO_UNCHANGED), + TEST_f_f (log2, snan_value, qnan_value, INVALID_EXCEPTION), + TEST_f_f (log2, -snan_value, qnan_value, INVALID_EXCEPTION), AUTO_TESTS_f_f (log2), }; |