http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46779
Georg Lay <avr at gjlay dot de> changed:
What |Removed |Added
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CC| |avr at gjlay dot de
--- Comment #5 from Georg Lay <avr at gjlay dot de> 2011-02-05 16:01:14 UTC ---
Probably we see PR45291 here introduced by the byte-shift w <<= 8. Some
versions of avr backend emit bad subreg rtx which is still present in 4.5.2 and
4.6.0
http://gcc.gnu.org/PR45291
FYI, not clobbering R1 resp. R0 will not trigger a bug because there regs are
fixed.
