Re: [PATCH 23/46] tcg/optimize: Use fold_masks_zs in fold_nor

[Pierrick Bouvier]

On 12/10/24 07:23, Richard Henderson wrote:
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>   tcg/optimize.c | 8 +++++---
>   1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/tcg/optimize.c b/tcg/optimize.c
> index cc3dc91d3f..aa5242a380 100644
> --- a/tcg/optimize.c
> +++ b/tcg/optimize.c
> @@ -2039,14 +2039,16 @@ static bool fold_neg(OptContext *ctx, TCGOp *op)
>   
>   static bool fold_nor(OptContext *ctx, TCGOp *op)
>   {
> +    uint64_t s_mask;
> +
>       if (fold_const2_commutative(ctx, op) ||
>           fold_xi_to_not(ctx, op, 0)) {
>           return true;
>       }
>   
> -    ctx->s_mask = arg_info(op->args[1])->s_mask
> -                & arg_info(op->args[2])->s_mask;
> -    return false;
> +    s_mask = arg_info(op->args[1])->s_mask
> +           & arg_info(op->args[2])->s_mask;
> +    return fold_masks_zs(ctx, op, -1, s_mask);
>   }
>   
>   static bool fold_not(OptContext *ctx, TCGOp *op)

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>