http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57503
--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> --- (In reply to Georg-Johann Lay from comment #1) > Created attachment 30242 [details] > .expand dump > > Notice that in rot(), long D.1484_5 is unused and instead the 32-bit value > D.1482_3 is used. 16-bit, of course. In the s-file you can see that __usmulhisi3 is used. This is a widening 16-bit unsigned * 16-bit signed multiplication and not correct here.
