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// run
//go:build !nacl && !js && !wasip1 && gc
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Test that compiling with optimization turned on produces faster code.
package main
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
)
func main() {
err := os.Chdir(filepath.Join(".", "fixedbugs", "bug369.dir"))
check(err)
tmpDir, err := ioutil.TempDir("", "bug369")
check(err)
defer os.RemoveAll(tmpDir)
tmp := func(name string) string {
return filepath.Join(tmpDir, name)
}
check(os.Mkdir(tmp("test"), 0777))
stdlibimportcfg, err := os.ReadFile(os.Getenv("STDLIB_IMPORTCFG"))
check(err)
importcfg := string(stdlibimportcfg) + "\npackagefile test/slow=" + tmp("test/slow.o") + "\npackagefile test/fast=" + tmp("test/fast.o")
os.WriteFile(tmp("importcfg"), []byte(importcfg), 0644)
run("go", "tool", "compile", "-importcfg="+tmp("importcfg"), "-p=test/slow", "-N", "-o", tmp("test/slow.o"), "pkg.go")
run("go", "tool", "compile", "-importcfg="+tmp("importcfg"), "-p=test/fast", "-o", tmp("test/fast.o"), "pkg.go")
run("go", "tool", "compile", "-importcfg="+tmp("importcfg"), "-p=main", "-D", "test", "-o", tmp("main.o"), "main.go")
run("go", "tool", "link", "-importcfg="+tmp("importcfg"), "-o", tmp("a.exe"), tmp("main.o"))
run(tmp("a.exe"))
}
func run(name string, args ...string) {
cmd := exec.Command(name, args...)
out, err := cmd.CombinedOutput()
if err != nil {
fmt.Println(string(out))
fmt.Println(err)
os.Exit(1)
}
}
func check(err error) {
if err != nil {
fmt.Println(err)
os.Exit(1)
}
}
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