[PATCH 15/39] Handle pragma GCC optimize for clang

[Sam James]

"H.J. Lu" <hjl.tools@gmail.com> writes:

> From: Adhemerval Zanella <adhemerval.zanella@linaro.org>

Reviewed-by: Sam James <sam@gentoo.org>

>
> ---
>  libio/tst-bz24051.c | 6 +++++-
>  libio/tst-bz24153.c | 6 +++++-
>  2 files changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/libio/tst-bz24051.c b/libio/tst-bz24051.c
> index a9903f20a3..2d32aae74a 100644
> --- a/libio/tst-bz24051.c
> +++ b/libio/tst-bz24051.c
> @@ -19,7 +19,11 @@
>  
>  /* Prevent putchar -> _IO_putc inline expansion.  */
>  #define __NO_INLINE__
> -#pragma GCC optimize("O0")
> +#ifdef __clang__
> +# pragma clang optimize off
> +#else
> +# pragma GCC optimize("O0")
> +#endif

OK. Per
https://clang.llvm.org/docs/LanguageExtensions.html#extensions-for-selectively-disabling-optimization,
optnone is only for the attribute, so optimize off is correct.

>  
>  #include <stdio.h>
>  #include <string.h>
> diff --git a/libio/tst-bz24153.c b/libio/tst-bz24153.c
> index 023f07ca20..c379876fcc 100644
> --- a/libio/tst-bz24153.c
> +++ b/libio/tst-bz24153.c
> @@ -18,7 +18,11 @@
>  
>  /* Prevent getchar -> getc inline expansion.  */
>  #define __NO_INLINE__
> -#pragma GCC optimize ("O0")
> +#ifdef __clang__
> +# pragma clang optimize off
> +#else
> +# pragma GCC optimize("O0")
> +#endif
>  
>  #include <stdarg.h>
>  #include <stdio.h>