[Bug target/56219] avr-gcc-4.7.2 missing __uint24 loop optimisation

[demiurg_spb at freemail dot ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56219



--- Comment #2 from demiurg_spb at freemail dot ru 2013-02-06 13:06:01 UTC ---

oops r0 - is call-clobbered:(