Re: [Qemu-devel] [PATCH 2/8] target/ppc: Optimize emulation of vsl and vsr instructions

[Richard Henderson]

On 6/6/19 5:15 AM, Stefan Brankovic wrote:
> +    tcg_gen_subi_i64(tmp, sh, 64);
> +    tcg_gen_neg_i64(tmp, tmp);

Better as

    tcg_gen_subfi_i64(tmp, 64, sh);


r~