* gcc.dg/pr44214-1.c (v2df): Define size using sizeof (double).
        * gcc.dg/pr44214-3.c (v2df): Likewise.
        * gcc.dg/pr46647.c: xfail for avr*-*-*.
	* gcc.dg/pr53265.c: Disable test for avr*-*-*.
        * gcc.dg/strlenopt-10.c [avr*-*-*]: Reduce number of expected
        memcpy by one.
        * gcc.dg/strlenopt-11.c [avr*-*-*]: Likewise.
        Expect l to be optimized away.
        * gcc.dg/strlenopt-13.c [avr*-*-*]: Likewise.