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r190723 - in /branches/gcc-4_7-branch/gcc: Chan...
- From: walt at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Mon, 27 Aug 2012 17:39:20 -0000
- Subject: r190723 - in /branches/gcc-4_7-branch/gcc: Chan...
Author: walt
Date: Mon Aug 27 17:39:19 2012
New Revision: 190723
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190723
Log:
Properly set the latency of atomic ops to the approximate latency of a
remote memory operation.
Backport from mainline
2012-08-27 Walter Lee <walt@tilera.com>
* config/tilegx/sync.md (atomic_compare_and_swap_bare<mode>,
atomic_exchange_bare<mode>,
atomic_fetch_<fetchop_name>_bare<mode>): Set type to X1_remote.
* config/tilegx/tilegx-generic.md (X1_remote): New
insn_reservation.
* config/tilegx/tilegx.md (type): Add X1_remove.
(insn_cmpexch<four_if_si>, insn_exch<four_if_si>,
insn_fetchadd<four_if_si>, insn_fetchaddgez<four_if_si>,
insn_fetchand<four_if_si>, insn_fetchor<four_if_si>): Set type to
X1_remote.
Modified:
branches/gcc-4_7-branch/gcc/ChangeLog
branches/gcc-4_7-branch/gcc/config/tilegx/sync.md
branches/gcc-4_7-branch/gcc/config/tilegx/tilegx-generic.md
branches/gcc-4_7-branch/gcc/config/tilegx/tilegx.md