Re: [PATCH v4 03/16] meson: Split test for __int128_t type from __int128_t arithmetic

[Peter Maydell]

On Fri, 26 May 2023 at 01:26, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Older versions of clang have missing runtime functions for arithmetic
> with -fsanitize=undefined (see 464e3671f9d5c), so we cannot use
> __int128_t for implementing Int128.  But __int128_t is present,
> data movement works, and can be use for atomic128.

"and it can be used"

>
> Probe for both CONFIG_INT128_TYPE and CONFIG_INT128, adjust
> qemu/int128.h to define Int128Alias if CONFIG_INT128_TYPE,
> and adjust the meson probe for atomics to use has_int128_type.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM