intrinsics and sign-conversion

[Mathieu Malaterre via Gcc-help <gcc-help@xxxxxxxxxxx>]

Hi all,

I am trying to understand why I cannot get gcc to trigger a
sign-conversion warning on the following:

% cat tu.c
#include <immintrin.h>

extern unsigned int bar();

__m128i foo(__m128i a)
{
    return _mm_srai_epi64(a, bar());
}

On Debian/sid:

% gcc-12 -c  -mavx512vl -Wsign-conversion -Werror tu.c && echo "success"
success

Thanks,
-- 
Mathieu