switch u := under(bound).(type) {
	case *Basic:
		if !isValid(u) {
			// error is reported elsewhere
			return &emptyInterface
		}
	case *Interface:
		if isTypeParam(bound) {
			// error is reported in Checker.collectTypeParams
			return &emptyInterface
		}
		ityp = u
	}

	// If we don't have an interface, wrap constraint into an implicit interface.
	if ityp == nil {

		m := devirtualizedLine.FindStringSubmatch(line)
		if m == nil {
			continue
		}

		d := devirtualization{
			pos:    m[1],
			callee: m[2],
		}
		got[d] = struct{}{}
	}
	if err := cmd.Wait(); err != nil {
		t.Fatalf("error running go test: %v", err)
	}
	if err := scanner.Err(); err != nil {
		t.Fatalf("error reading go test output: %v", err)
	}

	if len(got) != len(want) {

			If("bool1", "then", "else")),
		Bloc("then",
			Goto("exit")),
		Bloc("else",
			Goto("exit")),
		Bloc("exit",
			Exit("mem")))

	CheckFunc(fun.f)
	fuseLate(fun.f)

	for _, b := range fun.f.Blocks {
		if b == fun.blocks["then"] && b.Kind != BlockInvalid {
			t.Errorf("then was not eliminated, but should have")
		}
		if b == fun.blocks["else"] && b.Kind != BlockInvalid {

func genericSorted[T sort.Interface](data T) bool {
	n := data.Len()
	for i := n - 1; i > 0; i-- {
		if data.Less(i, i-1) {
			return false
		}
	}
	return true
}
func TestGenericSorted(t *testing.T) {
	var data = sort.IntSlice{-10, -5, 0, 1, 2, 3, 5, 7, 11, 100, 100, 100, 1000, 10000}
	f := func() {
		genericSorted(data)
	}
	if n := testing.AllocsPerRun(10, f); n > 0 {
		t.Errorf("got %f allocs, want 0", n)
	}
}

	var alt string // alternative spelling of selector; if any
	if obj != nil {
		alt = obj.Name()
		if obj.Pkg() == check.pkg {
			assert(alt != sel) // otherwise there is no lookup error
			e = misspelled
		} else if isExported(sel) {
			if isExported(alt) {
				e = misspelled
			} else if tail(sel) == tail(alt) {
				e = unexported
			}
		} else if isExported(alt) {
			if tail(sel) == tail(alt) {
				e = misspelled
			}

			Valu("t30", OpIsSliceInBounds, c.config.Types.Int64, 0, nil, "v2", "v1"),
			Goto("b2")),
		Bloc("b2",
			Exit("mem")))
	sccp(fun.f)
	CheckFunc(fun.f)
	for name, value := range fun.values {
		if strings.HasPrefix(name, "t") {
			if !isConst(value) {
				t.Errorf("Must be constant: %v", value.LongString())
			}
		}
	}
}

func TestSCCPIf(t *testing.T) {
	c := testConfig(t)
	fun := c.Fun("b1",
		Bloc("b1",

    b bool
    s string
    n int
}
`
	ts := findStructType(t, src)
	sizes := types2.StdSizes{WordSize: 4, MaxAlign: 4}
	if got := sizes.Sizeof(ts); got != 20 {
		t.Errorf("Sizeof(%v) with WordSize 4 = %d want 20", ts, got)
	}
	sizes = types2.StdSizes{WordSize: 8, MaxAlign: 8}
	if got := sizes.Sizeof(ts); got != 40 {
		t.Errorf("Sizeof(%v) with WordSize 8 = %d want 40", ts, got)
	}
}

// go.dev/issue/16464

	fmt.Fprintf(os.Stderr, "Flags:\n")
	flag.PrintDefaults()
	os.Exit(2)
}

func Parse() {
	objabi.Flagparse(Usage)
	if flag.NArg() == 0 {
		flag.Usage()
	}

	// Flag refinement.
	if *OutputFile == "" {
		if flag.NArg() != 1 {
			flag.Usage()
		}
		input := filepath.Base(flag.Arg(0))
		input = strings.TrimSuffix(input, ".s")
		*OutputFile = fmt.Sprintf("%s.o", input)
	}

					if !exit.contains(s.b.ID) {
						continue NextPred
					}
				}
				// All Succs are in exit; add p.
				exit.add(p.ID)
				changed = true
			}
		}
		if !changed {
			break
		}
	}

	// Initialize indegree of each block
	for _, b := range f.Blocks {
		if exit.contains(b.ID) {
			// exit blocks are always scheduled last
			continue
		}
		indegree[b.ID] = len(b.Preds)
		if len(b.Preds) == 0 {

				if err != nil {
					t.Fatalf("failed to compile: %v\n%s", err, out)
				}
				obj, err := os.ReadFile(tmp.Name())
				if err != nil {
					t.Fatalf("failed to read object file: %v", err)
				}
				if i == 0 {
					want = obj
				} else {
					if !bytes.Equal(want, obj) {