>> For SIMD, this is a complicated mess for the compiler to unravel this is trivially vectorizable for simd, would fit nicely in a vliw packet too. The only is

>> For SIMD, this is a complicated mess for the compiler to unravel this is trivially vectorizable for simd, would fit nicely in a vliw packet too. The only issue is if there was a runtime memory stall with any access, then the entire pipeline would stall. with predication, modern simd even parallelize if conditions like below. int[] x, y, z; int[] p, d, q; for (int i = 0; i < size; ++i) { p[i] = x[i] / z[i]; d[i] = z[i] * x[i]; if(i>n) { q[i] = y[i] + z[i] ; } else { q[i] = y[i]; } }