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r181815 - in /trunk/gcc: ChangeLog optabs.c tes...
- From: amacleod at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Tue, 29 Nov 2011 19:42:45 -0000
- Subject: r181815 - in /trunk/gcc: ChangeLog optabs.c tes...
Author: amacleod
Date: Tue Nov 29 19:42:44 2011
New Revision: 181815
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181815
Log:
2011-11-29 Andrew MacLeod <amacleod@redhat.com>
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.
Added:
trunk/gcc/testsuite/gcc.dg/atomic-op-optimize.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/optabs.c
trunk/gcc/testsuite/ChangeLog