>> When you say other variants are still to be implemented
>> does that also include variants for zbb with min/max
>> or zicond?
>
> No, I mean some other forms like branch need the improvement from the
> middle end(aka widen_mul).
Ah, I see, thanks. Those can save one instruction and we want th
..@gmail.com
Subject: Re: [PATCH v2] RISC-V: Implement .SAT_SUB for unsigned scalar int
Hi Pan,
> + /* Step-2: lt = x < y */
> + riscv_emit_binary (LTU, pmode_lt, pmode_x, pmode_y);
> +
> + /* Step-3: lt = -lt */
> + riscv_emit_unary (NEG, pmode_lt, p
Hi Pan,
> + /* Step-2: lt = x < y */
> + riscv_emit_binary (LTU, pmode_lt, pmode_x, pmode_y);
> +
> + /* Step-3: lt = -lt */
> + riscv_emit_unary (NEG, pmode_lt, pmode_lt);
> +
> + /* Step-4: lt = ~lt */
> + riscv_emit_unary (NOT, pmode_lt, pmode_lt);
Can we replace step 3 and 4 with sub
