// so there's no need to attempt to prevent them.
				if s.canSSA(n.X) {
					if base.Debug.Append > 0 { // replicating old diagnostic message
						base.WarnfAt(n.Pos(), "append: len-only update (in local slice)")
					}
					break
				}
				if base.Debug.Append > 0 {
					base.WarnfAt(n.Pos(), "append: len-only update")
				}
				s.append(rhs, true)
				return
			}

	topTmpdir, err := os.MkdirTemp("", "cmd-covdata-test-")
	if err != nil {
		log.Fatal(err)
	}
	testTempDir = topTmpdir
	if !*preserveTmp {
		defer os.RemoveAll(topTmpdir)
	} else {
		fmt.Fprintf(os.Stderr, "debug: preserving tmpdir %s\n", topTmpdir)
	}
	os.Setenv("CMDCOVDATA_TEST_RUN_MAIN", "true")
	os.Exit(m.Run())
}

var tdmu sync.Mutex
var tdcount int

func tempDir(t *testing.T) string {
	tdmu.Lock()

		}
		return ""
	}
	if phase == "build" {
		switch flag {
		case "debug":
			BuildDebug = val
		case "test":
			BuildTest = val
		case "stats":
			BuildStats = val
		case "dump":
			BuildDump[valString] = true
		default:

	var leaders map[*ir.Name]int64
	if base.Debug.MergeLocals != 0 {
		mls = liveness.MergeLocals(fn, f)
		if base.Debug.MergeLocalsTrace > 0 && mls != nil {
			savedNP, savedP := mls.EstSavings()
			fmt.Fprintf(os.Stderr, "%s: %d bytes of stack space saved via stack slot merging (%d nonpointer %d pointer)\n", ir.FuncName(fn), savedNP+savedP, savedNP, savedP)
			if base.Debug.MergeLocalsTrace > 1 {

	if architecture == nil {
		log.Fatalf("unrecognized architecture %s", GOARCH)
	}
	ctxt := obj.Linknew(architecture.LinkArch)
	ctxt.Debugasm = flags.PrintOut
	ctxt.Debugvlog = flags.DebugV
	ctxt.Flag_dynlink = *flags.Dynlink
	ctxt.Flag_linkshared = *flags.Linkshared
	ctxt.Flag_shared = *flags.Shared || *flags.Dynlink
	ctxt.Flag_maymorestack = flags.DebugFlags.MayMoreStack

			t.uses = t.uses[1:]
			t.visitValue(use)
			continue
		}
		break
	}

	// apply optimizations based on discovered constants
	constCnt, rewireCnt := t.replaceConst()
	if f.pass.debug > 0 {
		if constCnt > 0 || rewireCnt > 0 {
			fmt.Printf("Phase SCCP for %v : %v constants, %v dce\n", f.Name, constCnt, rewireCnt)
		}
	}
}

func equals(a, b lattice) bool {
	if a == b {

		defer func() {
			check.indent--
		}()
	}

	switch t := typ.(type) {
	case nil:
		// We should never see a nil type but be conservative and panic
		// only in debug mode.
		if debug {
			panic("validType0(nil)")
		}

	case *Array:
		return check.validType0(pos, t.elem, nest, path)

	case *Struct:
		for _, f := range t.fields {
			if !check.validType0(pos, f.typ, nest, path) {

			p.Incomplete = true
		}
	}

	var debugModFromModinfo func(*modinfo.ModulePublic) *debug.Module
	debugModFromModinfo = func(mi *modinfo.ModulePublic) *debug.Module {
		version := mi.Version
		if version == "" {
			version = "(devel)"
		}
		dm := &debug.Module{
			Path:    mi.Path,
			Version: version,
		}
		if mi.Replace != nil {

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

// Annotate Ref in Prog with C types by parsing gcc debug output.
// Conversion of debug output to Go types.

package main

import (
	"bytes"
	"debug/dwarf"
	"debug/elf"
	"debug/macho"
	"debug/pe"
	"encoding/binary"
	"errors"
	"flag"
	"fmt"
	"go/ast"
	"go/parser"
	"go/token"
	"internal/xcoff"
	"math"
	"os"

}

// insert records a new label declaration for the current block.
// The label must not have been declared before in any block.
func (b *block) insert(s *syntax.LabeledStmt) {
	name := s.Label.Value
	if debug {
		assert(b.gotoTarget(name) == nil)
	}
	labels := b.labels
	if labels == nil {
		labels = make(map[string]*syntax.LabeledStmt)
		b.labels = labels
	}
	labels[name] = s
}