[Bug middle-end/90530] [10 Regression] Invalid SUBREG insn generated by reload

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90530

--- Comment #4 from John David Anglin <danglin at gcc dot gnu.org> ---
In ira pass, we had:

(insn 549 539 550 4 (set (reg:DI 286)
        (mult:DI (zero_extend:DI (subreg:SI (reg/f:DI 522) 4))
            (const_int 4294967295 [0xffffffff]))) 179 {*pa.md:5338}
     (expr_list:REG_EQUIV (mult:DI (zero_extend:DI (subreg:SI (symbol_ref:DI
("default_target_expmed") [flags 0x202]  <var_decl 800003fffb9b8120
default_target_expmed>) 4))
            (const_int 4294967295 [0xffffffff]))
        (nil)))