[Patch, MIPS] Modify memcpy.S for mips32r6/mips64r6

[Ondřej Bílka]

On Tue, Dec 23, 2014 at 09:08:46AM -0800, Steve Ellcey wrote:
> On Mon, 2014-12-22 at 17:59 +0000, Joseph Myers wrote:
> > On Fri, 19 Dec 2014, Steve Ellcey  wrote:
> > 
> > > 	* sysdeps/mips/memcpy.S: Fix preprocessor indentation.
> > 
> > Please separate the formatting fixes from the substantive changes.  The 
> > formatting fixes - a patch that shows no changes from "git diff -w" - can 
> > go in as obvious.  The r6 changes should then be resubmitted.
> 
> Here is a new memcpy patch.  It has just the changes needed for
> mips32r6/mips64r6 support.  Note that there are still some preprocessor
> indentation changes where existing ifdefs are now under a newly
> introduced !R6_CODE ifdef.
> 
> Tested with the mips32r6/mips64r6 GCC, binutils and qemu simulator.
> 
> OK to checkin?
> 
still contains likely performance regression. using indirect jumps is
slow, try different approaches.