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[Bug target/76774] atomics on PPC: inconsistent widths for an _Atomic(_Bool) and for atomic_compare_exchange_strong on it
- From: "pinskia at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 15 Aug 2016 12:43:54 +0000
- Subject: [Bug target/76774] atomics on PPC: inconsistent widths for an _Atomic(_Bool) and for atomic_compare_exchange_strong on it
- Authentication-results: sourceware.org; auth=none
- Auto-submitted: auto-generated
- References: <bug-76774-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=76774
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c |target
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Older power does not have ll/sc that act on 1 or 2 bytes. So it has to emulate
them by using the 4 byte one with and and ors.