Re: [PATCH] tcg/tcg: Avoid TS_DEAD for basic block ending

[Richard Henderson]

On 3/20/23 21:53, LIU Zhiwei wrote:
> TS_DEAD means we will release the register allocated for this temporary. But
> at basic block ending, we can still use the allocted register.
>
> Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>

Test case?


r~

> ---
>   tcg/tcg.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tcg/tcg.c b/tcg/tcg.c
> index bb52bc060b..0c93e6e6f8 100644
> --- a/tcg/tcg.c
> +++ b/tcg/tcg.c
> @@ -2822,7 +2822,7 @@ static void la_bb_end(TCGContext *s, int ng, int nt)
>           case TEMP_FIXED:
>           case TEMP_GLOBAL:
>           case TEMP_TB:
> -            state = TS_DEAD | TS_MEM;
> +            state = TS_MEM;
>               break;
>           case TEMP_EBB:
>           case TEMP_CONST: