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[Bug middle-end/19874] New: ICE in emit_move_insn with __attribute__((mode (QI))) enum

Enhanced testcase for PR c/19342 still ICEs e.g. on x86_64 at -O2,
particularly in emit_move_insn.
expand_value_return is called with val = (reg:QI 64), but
return_reg has different mode, (reg:SI 58 [ <result> ]).

-- 
           Summary: ICE in emit_move_insn with __attribute__((mode (QI)))
                    enum
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jakub at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19874
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