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| author | Joseph Myers <joseph@codesourcery.com> | 2016-05-26 22:58:36 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2016-05-26 22:58:36 +0000 |
| commit | 98c9c9d9ca6c1eb8e30fe449b1e1121b8c498715 (patch) | |
| tree | 3d8ac5444e4c4bbe885f4ca0bd9327aa02d0a3b6 /ChangeLog | |
| parent | d73e7bdb3a9284eb437b6cd84923658e25f922f2 (diff) | |
| download | glibc-98c9c9d9ca6c1eb8e30fe449b1e1121b8c498715.tar.gz glibc-98c9c9d9ca6c1eb8e30fe449b1e1121b8c498715.tar.xz glibc-98c9c9d9ca6c1eb8e30fe449b1e1121b8c498715.zip | |
Fix ldbl-128ibm sqrtl (sNaN) (bug 20153).
The ldbl-128ibm implementation of sqrtl wrongly returns an sNaN for signaling NaN arguments. This patch fixes it to quiet its argument, using the same x * x + x return for infinities and NaNs as the dbl-64 implementation uses to ensure that +Inf maps to +Inf while -Inf and NaN map to NaN. Tested for powerpc. [BZ #20153] * sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c (__ieee754_sqrtl): Return x * x + x for infinities and NaNs.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index b597ce9643..2516304de3 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,9 @@ 2016-05-26 Joseph Myers <joseph@codesourcery.com> + [BZ #20153] + * sysdeps/ieee754/ldbl-128ibm/e_sqrtl.c (__ieee754_sqrtl): Return + x * x + x for infinities and NaNs. + [BZ #20151] * sysdeps/ieee754/ldbl-128/e_j0l.c (__ieee754_j0l): Add NaN argument to itself before returning result. |