[PATCH-v3] Generate more efficient memory barriers for LEON3

[Eric Botcazou]

[Sorry for the delay]

> 2014-07-11  Daniel Cederman  <cederman@gaisler.com>
> 
> gcc/config/sparc/
>     * sync.md: Generate more efficient memory barriers for LEON3

Thanks, applied to all active branches with the following ChangeLog:


	* config/sparc/sync.md (*membar_storeload_leon3): New insn.
	(*membar_storeload): Disable for LEON3.


-- 
Eric Botcazou