[Bug target/73650] powerpc: -mcpu=e500mc hits ICE: insn does not satisfy its constraints

[amodra at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=73650

--- Comment #6 from Alan Modra <amodra at gmail dot com> ---
It's a bit interesting that the problem insn (from ira dump):

(insn 70 66 76 3 (parallel [
            (set (reg:CC 198)
                (compare:CC (reg/v:SI 188 [ n ])
                    (const_int 0 [0])))
            (set (reg:SI 197 [ n ])
                (reg/v:SI 188 [ n ]))
        ]) 465 {*movsi_internal2}
     (expr_list:REG_DEAD (reg/v:SI 188 [ n ])
        (expr_list:REG_UNUSED (reg:CC 198)
            (nil))))

could be replaced with (set (reg:SI 197) (reg/v:SI 188)).