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//go:noinline
func checkDefer(b *testing.B, index, item int) {
	defer checkItem(b, index, item)
}

//go:noinline
func checkDeferNo(b *testing.B, index, item int) {
	checkItem(b, index, item)
}


func BenchmarkDefer(b *testing.B) {
	m := generateIntSlice(b)
	for n := 0; n < b.N; n++ {
		for i := 0; i < len(m); i++ {
			var item = m[i]
			checkDefer(b, i, item)
		}
	}
}

func BenchmarkDeferNo(b *testing.B) {
	m := generateIntSlice(b)
	for n := 0; n < b.N; n++ {
		for i := 0; i < len(m); i++ {
			var item = m[i]
			checkDeferNo(b, i, item)
		}
	}
}

func BenchmarkSliceReadForward(b *testing.B) {
	m := generateIntSlice(b)
	for n := 0; n < b.N; n++ {
		for i := 0; i < len(m); i++ {
			e := m[i]
			checkItem(b, i, e)
		}
	}
}

func BenchmarkSliceReadBackwards(b *testing.B) {
	m := generateIntSlice(b)
	for n := 0; n < b.N; n++ {
		for i := len(m) - 1; i >= 0; i-- {
			e := m[i]
			checkItem(b, i, e)
		}
	}
}