Is it possible to inline function, containing loop in Golang?

For instance, I have the following test in golang:

// inline-tests.go
package inlinetests

func plus(a, b int) int {
    return a + b
}

func plus_plus(a, b, c int) int {
    return plus(plus(a, b), plus(b, c))
}

func plus_iter(l ...int) (res int) {
    for _, v := range l {
        res += v
    }
    return
}

If I try to build it, I receive the following:

go build -gcflags=-m inline-tests.go
# command-line-arguments
./inline-tests.go:4: can inline plus
./inline-tests.go:8: can inline plus_plus
./inline-tests.go:9: inlining call to plus
./inline-tests.go:9: inlining call to plus
./inline-tests.go:9: inlining call to plus
./inline-tests.go:12: plus_iter l does not escape

Is there any way to let compiler inline plus_iter? If yes, is there any way to inline map iteration?

> Go Wiki
>
> CompilerOptimizations
>
> Function Inlining
>
> Only short and simple functions are inlined. To be inlined a function
> must contain less than ~40 expressions and does not contain complex
> things like function calls, loops, labels, closures, panic's,
> recover's, select's, switch'es, etc.

Currently, functions with loops are not inlined.

As of go version 1.16:
https://golang.org/doc/go1.16#compiler

> The compiler can now inline functions with non-labeled for loops, method values, and type switches. The inliner can also detect more indirect calls where inlining is possible.