> > Is mtune ok here?
> Yes.
Thanks, fixed.  Ok to commit?
I verified that the test fails without fix in i386.c and passes with it.

Changelog:
gcc:
2013-09-09  Michael Zolotukhin  <michael.v.zolotukhin@gmail.com>

	* config/i386/i386.c (ix86_expand_movmem): Fix epilogue generation.

gcc/testsuite:
2013-09-09  Michael Zolotukhin  <michael.v.zolotukhin@gmail.com>

	* gcc.dg/torture/memcpy-1.c: New test.

Michael
> Uros.