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go/test/fixedbugs/bug369.go
Matthew Dempsky 3dac99ad4c cmd/compile: simplify fingerprint logic
Historically, we sometimes recorded imports based on either package
path ("net/http") or object file path ("net/http.a"). But modern Go
build systems always use package path, and the extra ".a" suffix
doesn't mean anything anyway.

Change-Id: I6060ef8bafa324168710d152a353f4d8db062133
Reviewed-on: https://go-review.googlesource.com/c/go/+/395254
Trust: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
2022-03-25 21:58:03 +00:00

57 lines
1.2 KiB
Go

// +build !nacl,!js,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)
}
check(os.Mkdir(tmp("test"), 0777))
run("go", "tool", "compile", "-p=test/slow", "-N", "-o", tmp("test/slow.o"), "pkg.go")
run("go", "tool", "compile", "-p=test/fast", "-o", tmp("test/fast.o"), "pkg.go")
run("go", "tool", "compile", "-p=main", "-D", "test", "-I", tmpDir, "-o", tmp("main.o"), "main.go")
run("go", "tool", "link", "-L", tmpDir, "-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)
}
}