#include <altivec.h>void homDivide(float *out){	float w = out[3];	vector float tempW = vec_re((vector float) {w, w, w, w});	vector float zeroV = (vector float) {0.0f, 0.0f, 0.0f, 0.0f};	vector float *outV = (vector float*) out;	outV[0] = vec_madd(outV[0], tempW, zeroV); }