// license that can be found in the LICENSE file.

package ssa

// combine copyelim and phielim into a single pass.
// copyelim removes all uses of OpCopy values from f.
// A subsequent deadcode pass is needed to actually remove the copies.
func copyelim(f *Func) {
	phielim(f)

	// loop of copyelimValue(v) process has been done in phielim() pass.
	// Update block control values.
	for _, b := range f.Blocks {

		}
		addr.Prealloc = x
		n.Prealloc = nil
	}

	return walkExpr(cfn, init)
}

// methodValueWrapper returns the ONAME node representing the
// wrapper function (*-fm) needed for the given method value. If the
// wrapper function hasn't already been created yet, it's created and
// added to typecheck.Target.Decls.
func methodValueWrapper(dot *ir.SelectorExpr) *ir.Name {

// The behavior of AssignableTo is unspecified if V or T is Typ[Invalid] or an
// uninstantiated generic type.
func AssignableTo(V, T Type) bool {
	x := operand{mode: value, typ: V}
	ok, _ := x.assignableTo(nil, T, nil) // check not needed for non-constant x
	return ok
}

// ConvertibleTo reports whether a value of type V is convertible to a value of
// type T.
//
// The behavior of ConvertibleTo is unspecified if V or T is Typ[Invalid] or an

// Test cases for symbol name mangling.

package main

import (
	"fmt"
	"strings"
)

// Issue 58800:
// Instantiated function name may contain weird characters
// that confuse the external linker, so it needs to be
// mangled.
type S struct {
	X int `parser:"|@@)"`
}

//go:noinline
func F[T any]() {}

func P() {
	F[S]()
}

// Issue 62098: the name mangling code doesn't handle some string

	autotmpnames   []string
)

// autotmpname returns the name for an autotmp variable numbered n.
func autotmpname(n int) string {
	autotmpnamesmu.Lock()
	defer autotmpnamesmu.Unlock()

	// Grow autotmpnames, if needed.
	if n >= len(autotmpnames) {
		autotmpnames = append(autotmpnames, make([]string, n+1-len(autotmpnames))...)
		autotmpnames = autotmpnames[:cap(autotmpnames)]
	}

	s := autotmpnames[n]
	if s == "" {

		"USER=gopher",
		homeEnvName() + "=" + homeDir,
		"GIT_CONFIG_NOSYSTEM=1",
		"HGRCPATH=" + filepath.Join(homeDir, ".hgrc"),
		"HGENCODING=utf-8",
	}
	// Preserve additional environment variables that may be needed by VCS tools.
	for _, k := range []string{
		pathEnvName(),
		tempEnvName(),
		"SYSTEMROOT",        // must be preserved on Windows to find DLLs; golang.org/issue/25210

//  2. not called
//  3. not converted to an interface
//  4. is a value method but the reference is to the pointer method
//
// These cases avoid the call to makefuncsym from typecheckfunc, but we
// still need to call makefuncsym somehow or the symbol will not be defined.
package issue25065

type T int

func (t T) M() {}

func F() func(*T) {
	return (*T).M

		_ = conf.Sizes.Sizeof(tv.Type)
		_ = conf.Sizes.Alignof(tv.Type)
	}
}

// go.dev/issue/53884.
func TestAtomicAlign(t *testing.T) {
	testenv.MustHaveGoBuild(t) // The Go command is needed for the importer to determine the locations of stdlib .a files.

	const src = `
package main

import "sync/atomic"

var s struct {
	x int32
	y atomic.Int64
	z int64
}
`

	work.AddBuildFlags(CmdVet, work.DefaultBuildFlags)
	CmdVet.Flag.StringVar(&vetTool, "vettool", "", "")
}

func parseVettoolFlag(args []string) {
	// Extract -vettool by ad hoc flag processing:
	// its value is needed even before we can declare
	// the flags available during main flag processing.
	for i, arg := range args {
		if arg == "-vettool" || arg == "--vettool" {
			if i+1 >= len(args) {
				log.Fatalf("%s requires a filename", arg)

				if vals[key] == nil {
					vals[key] = v
					if b != f.Entry {
						// Move v to the entry block so it will dominate every block
						// where we might use it. This prevents the need for any dominator
						// calculations in this pass.
						v.Block = f.Entry
						f.Entry.Values = append(f.Entry.Values, v)
						last := len(b.Values) - 1
						b.Values[i] = b.Values[last]
						b.Values[last] = nil