{Sym{goVersion: ver118, Name: "type..eq.[9]debug/elf.intName"}, ""},
		{Sym{goVersion: ver118, Name: "type..hash.debug/elf.ProgHeader"}, ""},
		{Sym{goVersion: ver118, Name: "type..eq.runtime._panic"}, ""},
		{Sym{goVersion: ver118, Name: "type..hash.struct { runtime.gList; runtime.n int32 }"}, ""},

 */

package gosym

import (
	"bytes"
	"encoding/binary"
	"sort"
	"sync"
)

// version of the pclntab
type version int

const (
	verUnknown version = iota
	ver11
	ver12
	ver116
	ver118
	ver120
)

// A LineTable is a data structure mapping program counters to line numbers.
//
// In Go 1.1 and earlier, each function (represented by a [Func]) had its own LineTable,

	// they do not belong to any package.
	//
	// See cmd/compile/internal/base/link.go:ReservedImports variable.
	if s.goVersion >= ver120 && (strings.HasPrefix(name, "go:") || strings.HasPrefix(name, "type:")) {
		return ""
	}

	// For go1.18 and below, the prefix are "type." and "go." instead.
	if s.goVersion <= ver118 && (strings.HasPrefix(name, "go.") || strings.HasPrefix(name, "type.")) {
		return ""
	}

		for i := 0; i < b.N; i++ {
			var f *Func
			var pc uint64
			pc, f, err = tab.LineToPC("/tmp/hello.go", 3)
			if err != nil {
				b.Fatal(err)
			}
			if pcln.version != ver12 {
				b.Fatalf("want version=%d, got %d", ver12, pcln.version)
			}
			if pc != 0x105c280 {
				b.Fatalf("want pc=0x105c280, got 0x%x", pc)
			}
			if f.Name != "main.main" {
				b.Fatalf("want name=main.main, got %q", f.Name)
			}

	// 0x0f even if all other VEX fields are 0.
	avxEscape = 1 << 6

	// P field - 2 bits
	vex66 = 1 << 0
	vexF3 = 2 << 0
	vexF2 = 3 << 0
	// L field - 1 bit
	vexLZ  = 0 << 2
	vexLIG = 0 << 2
	vex128 = 0 << 2
	vex256 = 1 << 2
	// W field - 1 bit
	vexWIG = 0 << 7
	vexW0  = 0 << 7
	vexW1  = 1 << 7
	// M field - 5 bits, but mostly reserved; we can store up to 3
	vex0F   = 1 << 3
	vex0F38 = 2 << 3