//
	// Deprecated: New code should avoid depending on Sym.Def. Add
	// mdempsky@ as a reviewer for any CLs involving Sym.Def.
	Def Object

	flags bitset8
}

const (
	symOnExportList = 1 << iota // added to exportlist (no need to add again)
	symUniq
	symSiggen // type symbol has been generated
	symAsm    // on asmlist, for writing to -asmhdr
	symFunc   // function symbol
)

		for j := 0; j < n; j++ {
			if j > 0 {
				g.p(", ")
			}
			g.p("h%d_%d", i, j)
		}
		if i == 0 {
			g.p(" = ")
			for j := 0; j < n; j++ {
				if j > 0 {
					g.p(", ")
				}
				g.p("1.0/(iota + %d)", j+1)
			}
		}
		g.p("\n")
	}
	g.p(")\n\n")
}

func (g *gen) inverse(n int) {
	g.p(`// Inverse Hilbert matrix
const (
`)
	for i := 0; i < n; i++ {
		for j := 0; j < n; j++ {

		off := a.BitFields.ParseSigned(i) << a.Shift
		neg := int64(-1) << (int(a.Shift) + a.BitFields.NumBits())
		return Offset(neg | off)
	}
}

type ArgType int8

const (
	TypeUnknown      ArgType = iota
	TypePCRel                // PC-relative address
	TypeLabel                // absolute address
	TypeReg                  // integer register
	TypeCondRegBit           // conditional register bit (0-31)

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

package language

import "errors"

type scriptRegionFlags uint8

const (
	isList = 1 << iota
	scriptInFrom
	regionInFrom
)

func (t *Tag) setUndefinedLang(id Language) {
	if t.LangID == 0 {
		t.LangID = id
	}
}

func (t *Tag) setUndefinedScript(id Script) {
	if t.ScriptID == 0 {

package benchmark

import (
	"fmt"
	"io"
	"os"
	"runtime"
	"runtime/pprof"
	"time"
	"unicode"
)

type Flags int

const (
	GC         = 1 << iota
	NoGC Flags = 0
)

type Metrics struct {
	gc        Flags
	marks     []*mark
	curMark   *mark
	filebase  string
	pprofFile *os.File
}

type mark struct {
	name              string

// 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 types

const (
	identIgnoreTags = 1 << iota
	identStrict
)

// Identical reports whether t1 and t2 are identical types, following the spec rules.
// Receiver parameter types are ignored. Named (defined) types are only equal if they

	succs2 [2]*Block // underlying array for Succs
}

// A BlockKind identifies the purpose of a block.
// It also determines the possible types of its Stmt field.
type BlockKind uint8

const (
	KindInvalid BlockKind = iota // Stmt=nil

	KindUnreachable     // unreachable block after {Branch,Return}Stmt / no-return call ExprStmt
	KindBody            // function body BlockStmt
	KindForBody         // body of ForStmt

// SecurityMode specifies whether a function should make network
// calls using insecure transports (eg, plain text HTTP).
// The zero value is "secure".
type SecurityMode int

const (
	SecureOnly      SecurityMode = iota // Reject plain HTTP; validate HTTPS.
	DefaultSecurity                     // Allow plain HTTP if explicit; validate HTTPS.
	Insecure                            // Allow plain HTTP if not explicitly HTTPS; skip HTTPS validation.
)

	"cmd/go/internal/modfetch/codehost"
	"cmd/go/internal/modinfo"
	"cmd/go/internal/search"
	"cmd/internal/pkgpattern"

	"golang.org/x/mod/module"
)

type ListMode int

const (
	ListU ListMode = 1 << iota
	ListRetracted
	ListDeprecated
	ListVersions
	ListRetractedVersions
)

// ListModules returns a description of the modules matching args, if known,

// inserted for "pointerness" are not evaluated until the function is
// called, so a T.f or (*T).f expression never panics.
type SelectionKind int

const (
	FieldVal   SelectionKind = iota // x.f is a struct field selector
	MethodVal                       // x.f is a method selector
	MethodExpr                      // x.f is a method expression
)

// A Selection describes a selector expression x.f.