[PATCH] stdbit: Fix builtin name used in __glibc_has_builtin check for rotate_right

[Adhemerval Zanella Netto]

On 06/05/26 08:03, Uros Bizjak wrote:
> The __glibc_has_builtin check in include/stdbit.h incorrectly refers to
> ___builtin_stdc_rotate_right (with three leading underscores) instead of the
> correct __builtin_stdc_rotate_right (two leading underscores). As a result,
> the builtin is not detected even when supported by the compiler.
> 
> Fix the spelling to use __builtin_stdc_rotate_right consistently in both the
> feature test and the corresponding comment.
> 
> Fixes: 4adae8550a7a ("stdlib: Add internal stdc_rotate_right implementation")
> Cc: Adhemerval Zanella <adhemerval.zanella@linaro.org>
> Signed-off-by: Uros Bizjak <ubizjak@gmail.com>

LGTM, thanks.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

> ---
>  include/stdbit.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/stdbit.h b/include/stdbit.h
> index 5be19b882e..863b0f8383 100644
> --- a/include/stdbit.h
> +++ b/include/stdbit.h
> @@ -5,8 +5,8 @@
>  #ifndef _ISOMAC
>  # include <stdint.h>
>  
> -#  if __glibc_has_builtin (___builtin_stdc_rotate_right)
> -#   define stdc_rotate_right(__x, __n) (___builtin_stdc_rotate_right (__x, __n))
> +#  if __glibc_has_builtin (__builtin_stdc_rotate_right)
> +#   define stdc_rotate_right(__x, __n) (__builtin_stdc_rotate_right (__x, __n))
>  #   define stdc_rotate_right_uc(__x, __n) (stdc_rotate_right (__x, __n))
>  #   define stdc_rotate_right_us(__x, __n) (stdc_rotate_right (__x, __n))
>  #   define stdc_rotate_right_ui(__x, __n) (stdc_rotate_right (__x, __n))
> @@ -62,7 +62,7 @@ __ror64_inline (uint64_t __x, unsigned int __n)
>  #    define stdc_rotate_right_ul(__x, __n) (__ror32_inline (__x, __n))
>  #   endif
>  #   define stdc_rotate_right_ull(__x, __n) (__ror64_inline (__x, __n))
> -#  endif /* __glibc_has_builtin (___builtin_stdc_rotate_right) */
> +#  endif /* __glibc_has_builtin (__builtin_stdc_rotate_right) */
>  
>  # endif /* _ISOMAC */
>