http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49927
--- Comment #4 from Uros Bizjak <ubizjak at gmail dot com> 2011-08-01 11:34:29 UTC --- (In reply to comment #3) > So perhaps it shouldn't be DImode but Pmode. Yes, this is a very good suggestion. BTW: I plan to relax the check for SUBREG_PROMOTED_UNSIGNED_P [1] with paradoxical subregs. [1] http://gcc.gnu.org/ml/gcc-patches/2011-07/msg01647.html