cmd/compile: type..eq function not generated #23546
Description
What version of Go are you using (go version)?
tip (e72e69a)
Does this issue reproduce with the latest release?
Yes, reproducible with Go 1.9, but not with Go 1.8.
What did you do?
https://play.golang.org/p/YoPVe0Td6KL
package main
func main() {
a := f()
println(a == f())
}
func f() [2]interface{} {
var out [2]interface{}
return out
}
This code does not build with Go tip:
$ go run x2.go
# command-line-arguments
type..eq.[2]interface {}: call to external function
main.main: relocation target type..eq.[2]interface {} not defined
main.main: undefined: "type..eq.[2]interface {}"
It builds with Go 1.8 and gccgo.
$ go1.8 run x2.go
true
$ go run -compiler=gccgo x2.go
true