On Tue, 2014-04-08 at 13:39 -0500, Pat Haugen wrote: > On 03/25/2014 11:20 AM, Pat Haugen wrote: > > Power8 can use lq/stq instructions for TI mode atomic_load/store. > > Bootstrap/regtest with no new failures. Ok for trunk and 4.8 (once > > bootstrap/regtest finishes)? > > > > -Pat > > > > > > 2014-03-25 Pat Haugen <pthau...@us.ibm.com> > > > > * config/rs6000/sync.md (AINT mode_iterator): Move definition. > > (loadsync_<mode>): Change mode. > > (atomic_load<mode>, atomic_store<mode>): Add support for TI mode. > > (load_quadpti, store_quadpti): New. > > * config/rs6000/rs6000.md (unspec enum): Add UNSPEC_LSQ. > > > > gcc/testsuite: > > * gcc.target/powerpc/atomic_load_store-p8.c: New. > > Updated patch which was approved off list and I have committed. >
Unfortunately this broke bootstrap on powerpc64le-linux-gnu on 4.8: checking for suffix of executables... /home/wschmidt/gcc/gcc-4_8-base/libatomic\ /load_n.c: In function 'libat_load_16': /home/wschmidt/gcc/gcc-4_8-base/libatomic/load_n.c:58:31: error: invalid failur\ e memory model for '__atomic_compare_exchange' atomic_compare_exchange_n (mptr, &t, 0, true, ^ make[4]: *** [load_16_.lo] Error 1 make[4]: *** Waiting for unfinished jobs.... Thanks, Bill