https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98365
--- Comment #5 from Hongtao.liu <crazylht at gmail dot com> ---
>
> And successully vectorized.
>
Also vectorized loop with cnt defined as signed short.
.i.e
int foo (short a[64], short c[64])
{
int i;
short cnt=0;
for (int i = 0;i != 64; i++)
if (a[i] == c[i])
cnt++;
return cnt;
}
Since signed integer overflow is undefined in C++ and C, gcc would always
convert signed char/short to unsigned char/short to avoid UB, and ifcvt should
be able to "properly" hanlde those nop conversion.
