Re: [PATCH] meson: Adjust check for __int128_t

[Peter Maydell]

On Tue, 23 May 2023 at 23:39, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Remove the signed * signed check, leaving the signed * unsigned check.
> This link test runs foul of -fsanitize=undefined, where clang-11 has
> an undefined reference to __muloti4 to check for signed overflow.

If you can't do a signed * signed multiply then that sounds
to me like "int128_t doesn't work on this compiler". We
specifically added this check to catch "some clang with
-fsanitize=undefined don't actually correctly compile
int128_t * int128_t" in commit 464e3671f9.

-- PMM