1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// +build !nacl,!js,!windows,gc
// run
// 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)
}
run("go", "tool", "compile", "-N", "-o", tmp("slow.o"), "pkg.go")
run("go", "tool", "compile", "-o", tmp("fast.o"), "pkg.go")
run("go", "tool", "compile", "-D", tmpDir, "-o", tmp("main.o"), "main.go")
run("go", "tool", "link", "-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)
}
}
|
