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https://github.com/golang/go
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9af8794353
Updates #28387 Fixes #35619 Change-Id: I162f3427b7901c117e3f3e403df7edec7c529bd1 Reviewed-on: https://go-review.googlesource.com/c/go/+/207352 Run-TryBot: Bryan C. Mills <bcmills@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
Go
// +build !nacl,!js,!windows
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// run
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Test that compiling with optimization turned on produces faster code.
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package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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)
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func main() {
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err := os.Chdir(filepath.Join(".", "fixedbugs", "bug369.dir"))
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check(err)
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tmpDir, err := ioutil.TempDir("", "bug369")
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check(err)
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defer os.RemoveAll(tmpDir)
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tmp := func(name string) string {
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return filepath.Join(tmpDir, name)
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}
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run("go", "tool", "compile", "-N", "-o", tmp("slow.o"), "pkg.go")
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run("go", "tool", "compile", "-o", tmp("fast.o"), "pkg.go")
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run("go", "tool", "compile", "-D", tmpDir, "-o", tmp("main.o"), "main.go")
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run("go", "tool", "link", "-o", tmp("a.exe"), tmp("main.o"))
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run(tmp("a.exe"))
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}
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func run(name string, args ...string) {
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cmd := exec.Command(name, args...)
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out, err := cmd.CombinedOutput()
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if err != nil {
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fmt.Println(string(out))
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fmt.Println(err)
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os.Exit(1)
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}
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}
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func check(err error) {
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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}
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