H.J. Lu wrote:
> reload generates:
>
> (insn 914 912 0 (set (reg:SI 0 ax)
> (plus:SI (subreg:SI (reg/v/f:DI 182 [ b ]) 0)
> (const_int 8 [0x8]))) 248 {*lea_1_x32}
> (nil))
>
> from
>
> insn = emit_insn_if_valid_for_reload (gen_rtx_SET (VOIDmode, out, in));
Interesting. The pseudo should have been replaced by the
hard register (reg:DI 1) during the preceding call to
op0 = find_replacement (&XEXP (in, 0));
(since reload 0 should have pushed a replacement record.)
Interestingly enough, in the final output that replacement *is*
performed in the REG_EQUIV note:
(insn 1023 1022 1024 34 (set (reg:SI 1 dx)
(plus:SI (reg:SI 1 dx)
(const_int 8 [0x8]))) spooles.c:291 248 {*lea_1_x32}
(expr_list:REG_EQUIV (plus:SI (subreg:SI (reg:DI 1 dx) 0)
(const_int 8 [0x8]))
(nil)))
which is why I hadn't expected this to be a problem here.
Can you try to find out why the find_replacement doesn't work
with your test case?
Bye,
Ulrich
--
Dr. Ulrich Weigand
GNU Toolchain for Linux on System z and Cell BE
[email protected]
