Szikra Istvan <steven.sp...@gmail.com> wrote: > /** > Category: optimization miss
No, I think that even qualifies as a genuine bug: in your case, a pointer qualified as "volatile" is being fetched twice, first by the CBI instruction, and a second time by the IN instruction. For an IO register, this can cause unwanted side effects (e.g. fetch the next byte from the UART). -- cheers, J"org .-.-. --... ...-- -.. . DL8DTL http://www.sax.de/~joerg/ NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-) _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
