=?ISO-8859-2?Q?Pawe=B3_Stawicki?= <sta...@gmail.com> wrote:
> I found a issue in the optimization part of gcc-avr.
If I run your code through my compiler, I get the following assembler
output:
..global _Z1fv
.type _Z1fv, @function
_Z1fv:
push r28
push r29
/* prologue: function */
/* frame size = 0 */
/* stack size = 2 */
..L__stack_usage = 2
call _Z5getchv
mov r29,r24
ldi r24,lo8(0)
mov r28,r24
call _Z5getchv
add r28,r24
adc r29,__zero_reg__
movw r24,r28
/* epilogue start */
pop r29
pop r28
ret
.size _Z1fv, .-_Z1fv
This is GCC 4.5.1, but with a patch for bug #46779 (which is only
fixed in GCC 4.7 and GCC 4.6). I'm not sure whether this would be
"your" bug, too, but I think it's possible.
--
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
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