// Copyright 2014 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 a

type s struct {
	s string
}

func F1(s s) {
}

func F2() s {
	return s{""}

// Copyright 2014 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.

//go:build linux && !arm && !arm64 && !loong64 && !mips && !mipsle && !mips64 && !mips64le && !s390x && !ppc64 && !ppc64le

package runtime

func archauxv(tag, val uintptr) {

// compile

// Copyright 2014 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.

// PR61255: gccgo failed to compile IncDec statements on variadic functions.

package main

func main() {
	append([]byte{}, 0)[0]++

// compile

// Copyright 2014 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"

func main() {
	var ii interface{} = 5
	zz, err := ii.(interface{})
	fmt.Println(zz, err)

// compile

// Copyright 2014 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.

// /tmp/x.go:5: illegal constant expression: bool == interface {}

package p

var m = map[interface{}]struct{}{
	nil:  {},
	true: {},

// Copyright 2014 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.

// This file contains tests for the suspicious shift checker.

package shift

func ShiftTest() {
	var i8 int8
	_ = i8 << 7
	_ = (i8 + 1) << 8 // ERROR ".i8 . 1. .8 bits. too small for shift of 8"

// compile

// Copyright 2014 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.

// PR61273: gccgo failed to compile a SendStmt in the PostStmt of a ForClause
// that involved predefined constants.

package main

func main() {
	c := make(chan bool, 1)
	for ; false; c <- false {
	}

// run

// Copyright 2014 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

var a = 1

func main() {
	defer func() {
		recover()
		if a != 2 {
			println("BUG a =", a)
		}
	}()
	a = 2
	b := a - a
	c := 4
	a = c / b
	a = 3

// errorcheck

// Copyright 2014 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.

// Check for cycles in a pointer method expression.

package ptrmethexpr

type T int

func (*T) pm() int {
	_ = x
	return 0
}

// compile

// Copyright 2014 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.

// Issue 7742: cannot use &autotmp_0001 (type *map[string]string) as type *string in function argument

package main

var (
	m map[string]string
	v string
)

func main() {
	m[v], _ = v, v