always define HAVE_memory_barrier
commit6b5c01beb828bc0762ac6d8d7d3921dd499f4a78
authortbsaunde <tbsaunde@138bc75d-0d04-0410-961f-82ee72b054a4>
Sun, 24 May 2015 00:32:43 +0000 (24 00:32 +0000)
committertbsaunde <tbsaunde@138bc75d-0d04-0410-961f-82ee72b054a4>
Sun, 24 May 2015 00:32:43 +0000 (24 00:32 +0000)
tree8ccf3e5fd16e049367c8571fb4ac0aadef84ce3b
parenteaa700f27781fd336eee9812f2d7d70e54d0399d
always define HAVE_memory_barrier

gcc/ChangeLog:

2015-05-23  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* defaults.h (gen_memory_barrier): New function.
(HAVE_memory_barrier): Add default value.
* optabs.c: Adjust.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223621 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog
gcc/defaults.h
gcc/optabs.c