// run -gcflags=-d=softfloat

// Copyright 2018 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.

package main

import (
	"fmt"
)

// When using soft-float, OMUL might be rewritten to function
// call so we should ensure it was evaluated first. Stack frame
// setup for "test" function call should happen after call to runtime.fmul32

// run -gcflags=-d=checkptr

// Copyright 2019 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.

package main

import (
	"reflect"
	"unsafe"
)

var s []int

func main() {
	s = []int{42}
	h := (*reflect.SliceHeader)(unsafe.Pointer(&s))
	x := *(*int)(unsafe.Pointer(h.Data))
	if x != 42 {
		panic(x)
	}

env GO111MODULE=on

[short] skip

cd $WORK/auto
cp go.mod go.mod.orig
cp $WORK/modules-1.13.txt $WORK/auto/modules.txt

# An explicit -mod=vendor should force use of the vendor directory.
env GOFLAGS=-mod=vendor

# Pass -e to permit an error: tools.go imports a main package
# "example.com/printversion".
# TODO(#59186): investigate why it didn't fail without -e.
go list -f {{.Dir}} -tags tools -e all

// build -gcflags=-l=4

// Copyright 2023 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.

package p

type Interface interface {
	MonitoredResource() (resType string, labels map[string]string)
	Done()
}

func Autodetect() Interface {
	return func() Interface {
		Do(func() {
			var ad, gd Interface

			go func() {
				defer gd.Done()

# the profile at cmd/compile/default.pgo.

dir=$(mktemp -d)
cd $dir
seed=$(date)

for p in $(go list std cmd); do
	h=$(echo $seed $p | md5sum | cut -d ' ' -f 1)
	echo $p $h
	go build -o /dev/null -gcflags=-cpuprofile=$PWD/prof.$h $p
done

go tool pprof -proto prof.* > $(go env GOROOT)/src/cmd/compile/default.pgo

// asmcheck -gcflags=-spectre=ret

//go:build amd64

package codegen

func CallFunc(f func()) {
	// amd64:`CALL\truntime.retpoline`
	f()
}

func CallInterface(x interface{ M() }) {
	// amd64:`CALL\truntime.retpoline`
	x.M()
}

// Check to make sure that jump tables are disabled
// when retpoline is on. See issue 57097.
func noJumpTables(x int) int {
	switch x {
	case 0:
		return 0
	case 1:
		return 1

rm $WORK/log.txt

# TODO(#41400, #43078): when CC is set explicitly, it should be allowed to
# contain spaces separating arguments, and it should be possible to quote
# arguments with spaces (including the path), as in CGO_CFLAGS and other
# variables. For now, this doesn't work.
[!GOOS:windows] env CC=$WORK/'program files'/gcc
[GOOS:windows] env CC=$WORK\'program files'\gcc.bat
! go build -x
! exists $WORK/log.txt

-- go.mod --
module m

// run -gcflags=-d=ssa/check/on

// Copyright 2019 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.

// As of 2019-06, bug affects/ed amd64 and s390x.

package main

var foo = []byte{105, 57, 172, 152}

func main() {
	for i := 0; i < len(foo); i += 4 {
		// Requires inlining and non-constant i

// run -race -gcflags=all=-d=checkptr=0

//go:build ((linux && amd64) || (linux && ppc64le) || (darwin && amd64) || (freebsd && amd64) || (netbsd && amd64) || (windows && amd64)) && cgo

// Copyright 2021 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.

// Although -race turns on -d=checkptr, the explicit -d=checkptr=0
// should override it.

package main

	src := filepath.Join(tmpdir, "x.go")
	err := os.WriteFile(src, []byte(helloSrc), 0644)
	if err != nil {
		t.Fatalf("write file failed: %v", err)
	}

	cmd := testenv.Command(t, testenv.GoToolPath(t), "run", "-gcflags=all="+flag, src)
	out, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("go run failed: %v\n%s", err, out)
	}
	if string(out) != "hello\n" {
		t.Errorf("wrong output: got %q, want %q", out, "hello\n")
	}