[Bug target/94467] [10 Regression] wrong code with -mavx and ssse3 builtins

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94467

--- Comment #4 from Zdenek Sojka <zsojka at seznam dot cz> ---
(In reply to Richard Biener from comment #2)
> Note using __builtin_ia32_* directly is discouraged.  A testcase using
> official intrinsics would be better.

Thanks; I just took the list from
https://gcc.gnu.org/onlinedocs/gcc/x86-Built-in-Functions.html (it has some
mistakes though; I hope to list & report them 'when I have time for that'). I
assume using the intrinsics will be a bit complicated, because creduce will
probably expand/inline them by default to the __builtin_ia32_*() call.