100-go-mistakes/12-optimizations/93-instruction-level-parallelism/main.go

package main

const n = 1_000_000

func add(s [2]int64) [2]int64 {
	for i := 0; i < n; i++ {
		s[0]++
		if s[0]%2 == 0 {
			s[1]++
		}
	}
	return s
}

func add2(s [2]int64) [2]int64 {
	for i := 0; i < n; i++ {
		v := s[0]
		s[0] = v + 1
		if v%2 != 0 {
			s[1]++
		}
	}
	return s
}