On 08/23/2012 08:59 AM, Andrew MacLeod wrote:
> 2012-08-23 Andrew MacLeod <amacl...@redhat.com>
>
> gcc
> PR target/54087
> * optabs.c (expand_atomic_fetch_op_no_fallback): New. Factored code
> from expand_atomic_fetch_op.
> (expand_atomic_fetch_op): iTry atomic_{add|sub} operations in terms of
> the other one if direct opcode fails.
>
> testsuite
> * gcc.dg/pr54087.c: New testcase for atomic_sub -> atomic_add when
> atomic_sub fails.Ok. r~
