Re: [PATCH 06/18] target/i386: accept full MemOp in gen_ext_tl

[Richard Henderson <richard.henderson@linaro.org>]

On 10/14/23 03:01, Paolo Bonzini wrote:
> Use MO_SIGN to indicate signed vs. unsigned extension, and filter out
> bits other than MO_SIGN and MO_SIZE.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>   target/i386/tcg/translate.c | 30 +++++++++++++++---------------
>   1 file changed, 15 insertions(+), 15 deletions(-)
> 
> diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
> index 4f6f9fa7e52..d7d6c85877d 100644
> --- a/target/i386/tcg/translate.c
> +++ b/target/i386/tcg/translate.c
> @@ -699,18 +699,18 @@ static inline void gen_op_movl_T0_Dshift(DisasContext *s, MemOp ot)
>       tcg_gen_shli_tl(s->T0, s->T0, ot);
>   };
>   
> -static TCGv gen_ext_tl(TCGv dst, TCGv src, MemOp size, bool sign)
> +static TCGv gen_ext_tl(TCGv dst, TCGv src, MemOp ot)
>   {
> -    switch (size) {
> +    switch (ot & MO_SIZE) {
>       case MO_8:
> -        if (sign) {
> +        if (ot & MO_SIGN) {
>               tcg_gen_ext8s_tl(dst, src);
>           } else {
>               tcg_gen_ext8u_tl(dst, src);
>           }
>           return dst;
>       case MO_16:
> -        if (sign) {
> +        if (ot & MO_SIGN) {
>               tcg_gen_ext16s_tl(dst, src);
>           } else {
>               tcg_gen_ext16u_tl(dst, src);

A reminder yet again that I should make this generic -- we've several copies in the code 
base...

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~