Re: [PATCH] PR 50123 - Use exchange for atomic fetch_and and fetch_or when possible.

[Richard Henderson]

On 11/29/2011 07:08 AM, Andrew MacLeod wrote:
>       PR target/50123
>       * optabs.c (maybe_optimize_fetch_op): New.  Look for more optimal
>       instructions for a FECTH_OP or OP_FECTH sequence.
>       (expand_atomic_fetch_op): Call maybe_optimize_fetch_op.
>       * testsuite/gcc.dg/atomic-op-optimize.c: New.  Test for optimizations.

Ok.


r~