[PATCH v2] Fix Wundef warning for MEMCPY_OK_FOR_FWD_MEMMOVE

[Chris Metcalf]

On 6/27/2014 1:13 PM, Siddhesh Poyarekar wrote:
> I've moved the macro definition to memcopy.h with tile overriding the
> definition in its memcopy.h.  This also allows us to get rid of the
> tile-specific memmove.c.  The tile bit is untested, so I'll need Chris
> to verify that it doesn't cause any problems.  The code is unchanged
> on x86_64.
>
> Siddhesh
>
> 	* sysdeps/generic/memcopy.h: Define MEMCPY_OK_FOR_FWD_MEMMOVE.
> 	* sysdeps/tile/memcopy.h: Redefine MEMCPY_OK_FOR_FWD_MEMMOVE.
> 	* sysdeps/tile/tilegx/memmove.c: Remove file.

The problem with this is that tilepro's memmove.c can't use the optimization,
just tilegx, thus the placement in sysdeps/tile/tilegx/memmove.c.  So with an
#ifdef __tilegx__, and copying in the comment from the old memmove.c,
this would seem to be OK.

-- 
Chris Metcalf, Tilera Corp.
http://www.tilera.com