On Sun, May 08, 2022 at 10:31:04AM +0300, Dimitar Dimitrov wrote:
> This patch fixes a spurious warning for pru-unknown-elf target:
> gcc/testsuite/gcc.dg/mallign.c:12:27: warning: ignoring return value of
> 'malloc' declared with attribute 'warn_unused_result' [-Wunused-result]
>
> For 8-bit targets the resulting mask ignores all bits in the value
> returned by malloc. Fix by first checking the target word size.
>
> Sanity checked that there are no new failures on x86_64-pc-linux-gnu.
>
> Ok for trunk?
Ping. Does this count as an obvious fix?
>
> gcc/testsuite/ChangeLog:
>
> * gcc.dg/mallign.c: Skip check if sizeof(word)==1.
>
> Signed-off-by: Dimitar Dimitrov <dimi...@dinux.eu>
> ---
> gcc/testsuite/gcc.dg/mallign.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/testsuite/gcc.dg/mallign.c b/gcc/testsuite/gcc.dg/mallign.c
> index 349cdaa343f..9a18a00c3b0 100644
> --- a/gcc/testsuite/gcc.dg/mallign.c
> +++ b/gcc/testsuite/gcc.dg/mallign.c
> @@ -9,7 +9,7 @@ typedef int word __attribute__((mode(word)));
>
> int main()
> {
> - if ((__UINTPTR_TYPE__)malloc (1) & (sizeof(word)-1))
> + if ((sizeof(word)>1) && ((__UINTPTR_TYPE__)malloc (1) &
> (sizeof(word)-1)))
> abort ();
> return 0;
> }
>
> --
> 2.35.1
>
