// then a new devirt.pprof file should be generated:
//
//	$ cd $GOROOT/src/cmd/compile/internal/test/testdata/pgo/devirtualize/
//	$ go mod init example.com/pgo/devirtualize
//	$ go test -bench=. -cpuprofile ./devirt.pprof

package devirt

import (
	"testing"

	"example.com/pgo/devirtualize/mult.pkg"
)

func BenchmarkDevirtIface(b *testing.B) {
	var (
		a1 Add
		a2 Sub
		m1 mult.Mult

// during PGO in the compiler. This transformation depends only on the profile
// itself and is thus wasteful to perform in every invocation of the compiler.
//
// Usage:
//
//	go tool preprofile [-v] [-o output] -i input
//
//

package main

import (
	"bufio"
	"cmd/internal/objabi"
	"cmd/internal/pgo"
	"cmd/internal/telemetry"
	"flag"
	"fmt"
	"log"
	"os"

# 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

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package pgo contains the compiler-agnostic portions of PGO profile handling.
// Notably, parsing pprof profiles and serializing/deserializing from a custom
// intermediate representation.
package pgo

import (
	"errors"
	"fmt"
	"internal/profile"
	"io"
	"sort"
)

// WARNING: Please avoid updating this file. If this file needs to be updated,
// then a new devirt.pprof file should be generated:
//
//	$ cd $GOROOT/src/cmd/compile/internal/test/testdata/pgo/devirtualize/
//	$ go mod init example.com/pgo/devirtualize
//	$ go test -bench=. -cpuprofile ./devirt.pprof

package devirt

// Devirtualization of callees from transitive dependencies should work even if

// WARNING: Please avoid updating this file. If this file needs to be updated,
// then a new inline_hot.pprof file should be generated:
//
//  $ cd $GOROOT/src/cmd/compile/internal/test/testdata/pgo/inline/
//  $ go test -bench=. -cpuprofile ./inline_hot.pprof
package main

import "testing"

func BenchmarkA(b *testing.B) {
	benchmarkB(b)
}
func benchmarkB(b *testing.B) {

	for i := 0; true; {

// Copyright 2024 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 pgo

import (
	"bufio"
	"fmt"
	"io"
)

// Serialization of a Profile allows go tool preprofile to construct the edge
// map only once (rather than once per compile process). The compiler processes
// then parse the pre-processed data directly from the serialized format.
//

// WARNING: Please avoid updating this file. If this file needs to be updated,
// then a new inline_hot.pprof file should be generated:
//
//  $ cd $GOROOT/src/cmd/compile/internal/test/testdata/pgo/inline/
//  $ go test -bench=. -cpuprofile ./inline_hot.pprof
package main

import (
	"time"
)

type BS struct {
	length uint
	s      []uint64
}

const wSize = uint(64)
const lWSize = uint(6)

// Copyright 2024 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 pgo

import (
	"bufio"
	"fmt"
	"io"
	"strings"
	"strconv"
)

// IsSerialized returns true if r is a serialized Profile.
//
// IsSerialized only peeks at r, so seeking back after calling is not
// necessary.
func IsSerialized(r *bufio.Reader) (bool, error) {

// Copyright 2024 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 pgo

import (
	"bytes"
	"encoding/binary"
	"fmt"
	"reflect"
	"strings"
	"testing"
)

// equal returns an error if got and want are not equal.
func equal(got, want *Profile) error {
	if got.TotalWeight != want.TotalWeight {