[Bug target/33050] [avr] unnessary register save

[eweddington at cso dot atmel dot com]

------- Comment #4 from eweddington at cso dot atmel dot com  2007-08-24 20:41 -------
(In reply to comment #3)

4.3.0 20070817 snapshot produces this for the second test case:

test:
        push r17
/* prologue: function */
/* frame size = 0 */
        mov r17,r24
        call foo
        add r24,r17
/* epilogue start */
        pop r17
        ret


So the second test case is optimized correctly when we get to 4.3.0.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33050