[Bug target/60880] New: Wrong assert in promote_duplicated_reg

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60880

            Bug ID: 60880
           Summary: Wrong assert in promote_duplicated_reg
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com

promote_duplicated_reg has

gcc_assert (mode == SImode || mode == DImode || val == const0_rtx);

But it may be called by promote_duplicated_reg_to_size with HImode:

  else if (size_needed > 1 || (desired_align > align && desired_align > 1))
    promoted_val = promote_duplicated_reg (HImode, val);