[FFmpeg-devel] [PATCH] lavu/atomic: add support for the new memory model aware gcc built-ins
jamrial at gmail.com
Wed Oct 29 18:11:00 CET 2014
On 28/10/14 11:16 PM, Michael Niedermayer wrote:
> On Mon, Oct 27, 2014 at 11:25:01PM -0300, James Almer wrote:
>> __sync built-ins are considered legacy and will be deprecated.
>> These new memory model aware built-ins have been available since GCC 4.7.0
>> Use them by default when available except for __atomic_compare_exchange_n(),
>> which is slower, and is instead implemented as a fallback for when and if gcc
>> removes the legacy __sync built-ins.
>> Signed-off-by: James Almer <jamrial at gmail.com>
>> configure | 4 +++-
>> libavutil/atomic_gcc.h | 17 +++++++++++++++++
>> 2 files changed, 20 insertions(+), 1 deletion(-)
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