On 08/30/2012 05:33 PM, Richard Henderson wrote:
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.
Oops, approved but never checked in. Just did so after a new
bootstrap/test cycle with no issues.
Andrew
