illegal insn created in ira

[roy rosen <roy dot 1rosen at gmail dot com>]

Hi,

In my port I have an error: Before ira I have the following insn:

(insn 3859 4277 4366 57 (set (reg:BI 2038)
        (subreg:BI (reg/v:SI 181 [ realsz ]) 3)) 76 {movbi}
     (expr_list:REG_EQUAL (const_int 1 [0x1])
        (nil)))


During ira this insn is transformed (I guess because reg 181 is spilled) into:

(insn 5109 5108 4366 57 (set (reg:BI 82 p1 [2038])
        (mem/c:BI (plus:SI (reg/f:SI 79 r31)
                (const_int -353 [0xfffffffffffffe9f])) [26 %sfp+-353
S1 A8])) 77 {movbi_load}
     (nil))

The problem is that this is an illegal insn since the I don't have an
insn which loads from memory to P registers so I get error:
unrecognizable insn.
I have only insns which load from memory to R register class and insn
that moves from R to P and I expected that to happen.

I also tried to add to secondary reload things like:
    if (rclass == P_REGS && MEM_P(x))
        return R_REGS;
or
    if ((rclass == P_REGS) && (((GET_CODE(x) == SUBREG) && MEM_P(XEXP (x, 0)))))
    {
        return R_REGS;
    }
but it does not seem to help.
Does anyone have any idea what can I do?

Thanks, Roy.