cmd/compile: println compiles to nothing #21808
Description
At tip,
package main
import "fmt"
func main() {
fmt.Printf("A\n")
println()
fmt.Printf("B\n")
}
Should print
A
B
Instead prints
A
B
Looks like println is getting compiled to nothing. Or at least, nothing that prints. Looking at the assembly there is a printlock/printunlock pair, but nothing in between.
Doesn't seem to affect any release, so labeling 1.10.