$ gccgo --version
gccgo (Debian 13.2.0-4) 13.2.0

package main

func f(s string) int {
	return len([]byte(s))
}

func main() {
	for _, e := range make([]int, f("abc")) {
		println(e)
	}
}

$ gccgo crash.go 
go1: error: esc already decorated call f("abc")

在gc上编译并运行正常。