Determine whether the CPU has AltiVec features.
Defined in <SDL3/SDL_cpuinfo.h>
bool SDL_HasAltiVec(void);
(bool) Returns true if the CPU has AltiVec features or false if not.
This always returns false on CPUs that aren't using PowerPC instruction sets.
It is safe to call this function from any thread.
This function is available since SDL 3.1.3.