On 10/28/20 5:18 AM, Chen Qun wrote:
> When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
> target/sparc/win_helper.c: In function ‘get_gregset’:
> target/sparc/win_helper.c:304:9: warning: this statement may fall through 
> [-Wimplicit-fallthrough=]
>   304 |         trace_win_helper_gregset_error(pstate);
>       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> target/sparc/win_helper.c:306:5: note: here
>   306 |     case 0:
>       |     ^~~~
> 
> Add the corresponding "fall through" comment to fix it.
> 
> Reported-by: Euler Robot <euler.ro...@huawei.com>
> Signed-off-by: Chen Qun <kuhn.chen...@huawei.com>
> ---
> Cc: Mark Cave-Ayland <mark.cave-ayl...@ilande.co.uk>
> Cc: Artyom Tarasenko <atar4q...@gmail.com>
> ---
>  target/sparc/win_helper.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/target/sparc/win_helper.c b/target/sparc/win_helper.c
> index 8290a21142..32eacc05e6 100644
> --- a/target/sparc/win_helper.c
> +++ b/target/sparc/win_helper.c
> @@ -303,6 +303,7 @@ static inline uint64_t *get_gregset(CPUSPARCState *env, 
> uint32_t pstate)
>      default:
>          trace_win_helper_gregset_error(pstate);
>          /* pass through to normal set of global registers */
> +        /* fall through */

Can you keep the comment, doing s/pass/fall/?

>      case 0:
>          return env->bgregs;
>      case PS_AG:
> 


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