http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46779
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-03 13:37:46 UTC --- at least I see r1 use in the asm but no clobber for it, instead it clobbers the seemingly unused r31.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46779
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-03 13:37:46 UTC --- at least I see r1 use in the asm but no clobber for it, instead it clobbers the seemingly unused r31.