This patch added the following variants of vec_sel.
vector bool long long
vec_sel(vector bool long long
vector bool long long,
vector bool long long);
vector bool long long
vec_sel(vector bool long long
vector bool long long,
vector unsigned long long);
vector signed long long
vec_sel(vector signed long long
vector signed long long,
vector bool long long);
vector signed long long
vec_sel(vector signed long long
vector signed long long,
vector unsigned long long);
vector unsigned long long
vec_sel(vector unsigned long long
vector unsigned long long,
vector bool long long);
vector unsigned long long
vec_sel(vector unsigned long long
vector unsigned long long,
vector unsigned long long);