This file generates a test that breaks the ARM64 compiler with "branch too far" errors

generator.go

package main

import (
	"fmt"
	"io"
	"os"
)

func dumpTable(w io.Writer, tableSize int) {
	fmt.Fprintln(w, "type funcPointer func() string")
	fmt.Fprintln(w, "var (")
	fmt.Fprintln(w, "funcTable = map[int]funcPointer{\n")
	for i := 0; i < tableSize; i++ {
		fmt.Fprintf(w, "%d: func_%d,\n", i, i)
	}
	fmt.Fprintln(w, "}\n")
	fmt.Fprintln(w, ")\n")
}

func dumpFunctions(w io.Writer, tableSize int) {
	for i := 0; i < tableSize; i++ {
		fmt.Fprintln(w, "")
		fmt.Fprintf(w, "func func_%d() string {\n", i)
		fmt.Fprintf(w, "return \"func %d\"\n", i)
		fmt.Fprintf(w, "}\n")
		fmt.Fprintln(w, "")
	}
}


func dumpHeader (w io.Writer) {
	fmt.Fprintln(w, "package main")
	fmt.Fprintln(w, "import \"fmt\"")
}

func dumpMain (w io.Writer, tableSize int) {
	fmt.Fprintln(w, "func main() {")
	fmt.Fprintf(w, "for i := 0; i < %d; i++ {\n", tableSize)
	fmt.Fprintf(w, "fmt.Println(funcTable[i]())\n")
	fmt.Fprintln(w, "}")
	fmt.Fprintln(w, "}")
}

func main() {
	dumpHeader(os.Stdout)
	dumpTable(os.Stdout, 20000)
	dumpFunctions(os.Stdout, 20000)
	dumpMain(os.Stdout, 20000)
}