http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46779
--- Comment #2 from Michael Schulze <mschulze at ivs dot cs.ovgu.de> 2010-12-03 13:58:40 UTC --- (In reply to comment #1) > at least I see r1 use in the asm but no clobber for it, instead it clobbers > the seemingly unused r31. Yes correct, r1 is not clobbered, however, I tested it with clobbering this one too. But this does not change the code generation, leading to the same erroneous code. In case of r31, I think you are wrong because it is used in "movw r30, %A3\n\t". Are you agree this is a bug or not?