Re: [PATCH v6 1/8] tcg/sparc: Use tcg_out_movi_imm13 in tcg_out_addsub2_i64

[Peter Maydell]

On Tue, 8 Feb 2022 at 07:17, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> When BH is constant, it is constrained to 10 bits for use in MOVCC.

Where does this happen? I assumed it was going to be done
by the constraint encodings, but tcg_out_addsub2_i64()
is called for the add2_i64 and sub2_i64 ops, which get

        return C_O2_I4(r, r, rZ, rZ, rJ, rJ);
and constraint J is
CONST('J', TCG_CT_CONST_S13).
(and indeed there is no "constrain to 10 bits" letter).

thanks
-- PMM