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| author |   Joseph Myers <joseph@codesourcery.com> | 2016-06-08 23:11:42 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-06-08 23:11:42 +0000 |
| commit | 8c010e2f7135902b6dc90f0577573dacbb54cde9 (patch) | |
| tree | cbd59f1350f8c5a0c0900c1fec63f849a8d66077 /sysdeps/x86_64 | |
| parent | Fix i386/x86_64 log10l (sNaN) (bug 20228). (diff) | |
| download | glibc-8c010e2f7135902b6dc90f0577573dacbb54cde9.tar.gz glibc-8c010e2f7135902b6dc90f0577573dacbb54cde9.tar.bz2 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 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/fpu/s_log1pl.S | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/x86_64/fpu/s_log1pl.S b/sysdeps/x86_64/fpu/s_log1pl.S index e83f64d3c0..947e5e4552 100644 --- a/sysdeps/x86_64/fpu/s_log1pl.S +++ b/sysdeps/x86_64/fpu/s_log1pl.S @@ -68,6 +68,7 @@ ENTRY(__log1pl) jnz 4b // in case x is ±Inf fstp %st(1) fstp %st(1) + fadd %st(0) ret END (__log1pl) |