[go-nuts] Is the escape analysis reports accurate?

[tapi...@gmail.com]

In the following code, "make([]T, n)" is reported as escaped.
But does it really always escape at run time?
Does the report just mean "make([]T, n) possibly escapes to heap"?

package main

type T int

const K = 1<<13
const N = 1<<12
var n = N
var i = n-1

func main() {
    var r = make([]T, N) // make([]T, N) does not escape
    println(r[i])
    
    var r2 = make([]T, n) // make([]T, n) escapes to heap
    println(r2[i])
    
    var r3 = make([]T, K) // make([]T, K) escapes to heap
    println(r3[i])
}

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