https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59432
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|ian at airs dot com |ubizjak at gmail dot com
--- Comment #12 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 33719
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33719&action=edit
Patch to enable unconditional use of %ebx in
atomic_compare_and_swap<dwi>_doubleword pattern
Patch in testing.
Now that %ebx is not fixed anymore, we can always use it and avoid all PIC
related complications in atomic_compare_and_swap<dwi>_doubleword pattern.
Attached patch fixes sync/atomic on CentOS 5 and doesn't regress in Fedora 20.
The patch in effect reverts Ian's patch at [1].
[1] https://gcc.gnu.org/ml/gcc-patches/2013-11/msg00309.html
