* gcc.c-torture/execute/ieee/20000320-1.x: Skip for AVR target.
* gcc.c-torture/execute/ieee/rbug.x: Ditto.
* gcc.c-torture/execute/ieee/pr30704.x: Add new file. Skip for AVR target.
* gcc.c-torture/execute/ieee/unsafe-fp-assoc-1.x: Ditto.

From-SVN: r136921