[FFmpeg-devel] [PATCH v2] libavutil/tests/md5: Avoid warnings

[James Almer]

On 1/20/2022 10:41 PM, softworkz wrote:
> From: softworkz <softworkz at hotmail.com>
> 
> Those are always showing up on Patchwork
> when FATE tests are failing, covering
> some possibly more useful information.
> 
> Signed-off-by: softworkz <softworkz at hotmail.com>
> ---
>      libavutil/tests/md5: Avoid warnings
>      
>      Those are always showing up on Patchwork when FATE tests are failing,
>      covering some possibly more useful information.
> 
> Published-As: https://github.com/ffstaging/FFmpeg/releases/tag/pr-ffstaging-20%2Fsoftworkz%2Fsubmit_md5-v2
> Fetch-It-Via: git fetch https://github.com/ffstaging/FFmpeg pr-ffstaging-20/softworkz/submit_md5-v2
> Pull-Request: https://github.com/ffstaging/FFmpeg/pull/20
> 
> Range-diff vs v1:
> 
>   1:  3910d81fa1 ! 1:  4723054463 libavutil/tests/md5: Avoid warnings
>       @@ libavutil/tests/md5.c: int main(void)
>         {
>             uint8_t md5val[16];
>             int i;
>       -+
>       -+#if defined(__clang__) && defined(__clang_major__) && __clang_major__ < 4
>       -     volatile uint8_t in[1000]; // volatile to workaround http://llvm.org/bugs/show_bug.cgi?id=20849
>       +-    volatile uint8_t in[1000]; // volatile to workaround http://llvm.org/bugs/show_bug.cgi?id=20849
>        -    // FIXME remove volatile once it has been fixed and all fate clients are updated
>       -+#else
>       -+    uint8_t in[1000];
>       ++
>       ++#if 1 || defined(__clang__) && defined(__clang_major__) && __clang_major__ < 4
>       ++    volatile // volatile to workaround http://llvm.org/bugs/show_bug.cgi?id=20849
>        +#endif
>       ++    uint8_t in[1000];
>         
>             for (i = 0; i < 1000; i++)
>                 in[i] = i * i;
> 
> 
>   libavutil/tests/md5.c | 7 +++++--
>   1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/libavutil/tests/md5.c b/libavutil/tests/md5.c
> index 42e4538e0a..cca63d6507 100644
> --- a/libavutil/tests/md5.c
> +++ b/libavutil/tests/md5.c
> @@ -33,8 +33,11 @@ int main(void)
>   {
>       uint8_t md5val[16];
>       int i;
> -    volatile uint8_t in[1000]; // volatile to workaround http://llvm.org/bugs/show_bug.cgi?id=20849
> -    // FIXME remove volatile once it has been fixed and all fate clients are updated
> +
> +#if 1 || defined(__clang__) && defined(__clang_major__) && __clang_major__ < 4

1?

> +    volatile // volatile to workaround http://llvm.org/bugs/show_bug.cgi?id=20849
> +#endif
> +    uint8_t in[1000];
>   
>       for (i = 0; i < 1000; i++)
>           in[i] = i * i;
> 
> base-commit: 7512293cf912c65fa657eab680afd5e18fd47603