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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2022-02-15 08:18:15 -0600 |
|---|---|---|
| committer | Sunil K Pandey <skpgkp2@gmail.com> | 2022-05-25 14:30:20 -0700 |
| commit | ac87df8d750b0734e20ffb82d1d0d0efbe4b6212 (patch) | |
| tree | 4795f998bdb7cbdcc44bb62b35601435a5201743 /include | |
| parent | 478cd506eaa5bbc81e3de6593a5064fa5f36fea9 (diff) | |
| download | glibc-ac87df8d750b0734e20ffb82d1d0d0efbe4b6212.zip glibc-ac87df8d750b0734e20ffb82d1d0d0efbe4b6212.tar.gz glibc-ac87df8d750b0734e20ffb82d1d0d0efbe4b6212.tar.bz2 | |
x86: Fallback {str|wcs}cmp RTM in the ncmp overflow case [BZ #29127]
Re-cherry-pick commit c627209832 for strcmp-avx2.S change which was
omitted in intial cherry pick because at the time this bug was not
present on release branch.
Fixes BZ #29127.
In the overflow fallback strncmp-avx2-rtm and wcsncmp-avx2-rtm would
call strcmp-avx2 and wcscmp-avx2 respectively. This would have
not checks around vzeroupper and would trigger spurious
aborts. This commit fixes that.
test-strcmp, test-strncmp, test-wcscmp, and test-wcsncmp all pass on
AVX2 machines with and without RTM.
Co-authored-by: H.J. Lu <hjl.tools@gmail.com>
(cherry picked from commit c6272098323153db373f2986c67786ea8c85f1cf)
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions