// test coverage on trybots. See https://go.dev/issue/34297.
func defaultAllCodeGen() bool {
	return os.Getenv("GO_BUILDER_NAME") == "linux-amd64"
}

var (
	// Package-scoped variables that are initialized at the start of Test.
	goTool       string
	goos         string // Target GOOS
	goarch       string // Target GOARCH
	cgoEnabled   bool
	goExperiment string
	goDebug      string

		}
	default:
		return -1
	}

	return packInstPair(target, o1, o2)
}

// Determine if the code was compiled so that the TOC register R2 is initialized and maintained.
func r2Valid(ctxt *ld.Link) bool {
	return isLinkingPIC(ctxt)
}

// Determine if this is linking a position-independent binary.
func isLinkingPIC(ctxt *ld.Link) bool {

// interrupted by a signal (e.g., profiler, segv, etc) then frame.pc is for the
// trapped instruction, so this returns frame.pc. See issue #34123. Finally,
// frame.pc can be at function entry when the frame is initialized without
// actually running code, like in runtime.mstart, in which case this returns
// frame.pc because that's the best we can do.
func (u *unwinder) symPC() uintptr {

The property factory methods such as `newInputFile()` are intended to be called from the constructor of a type that extends `DefaultTask`.
These methods are now final to avoid subclasses overriding these methods and using state that is not initialized.

==== Inputs and outputs are not automatically registered
The Property instances that are returned by these methods are no longer automatically registered as inputs or outputs of the task.

func gcenable() {
	// Kick off sweeping and scavenging.
	c := make(chan int, 2)
	go bgsweep(c)
	go bgscavenge(c)
	<-c
	<-c
	memstats.enablegc = true // now that runtime is initialized, GC is okay
}

// Garbage collector phase.
// Indicates to write barrier and synchronization task to perform.
var gcphase uint32

// The compiler knows about this variable.

	_, err = obj.NewMultipartUpload(context.Background(), bucket, object, opts)
	if err == nil {
		t.Fatalf("%s: Expected to fail since the NewMultipartUpload is initialized on a non-existent bucket.", instanceType)
	}
	if errMsg != err.Error() {
		t.Errorf("%s, Expected to fail with Error \"%s\", but instead found \"%s\".", instanceType, errMsg, err.Error())
	}

		fmt.Fprintf(fgcc, "\n%s\n", s)
		fmt.Fprintf(fgcc, "{\n")
		fmt.Fprintf(fgcc, "\tsize_t _cgo_ctxt = _cgo_wait_runtime_init_done();\n")
		// The results part of the argument structure must be
		// initialized to 0 so the write barriers generated by
		// the assignments to these fields in Go are safe.
		//
		// We use a local static variable to get the zeroed
		// value of the argument type. This avoids including

		g.Go(func() error {
			if disks[index] == nil {
				return errDiskNotFound
			}

			// Pick one FileInfo for a disk at index.
			fi := metadata[index]
			// Assign index when index is initialized
			if fi.Erasure.Index == 0 {
				fi.Erasure.Index = index + 1
			}

			if !fi.IsValid() {
				return errFileCorrupt
			}

  It can also, optionally and additionally, yield the iteration variables, which
  must be unchanged.

  The body region always has to yield the (possibly updated) iteration variables.

  The iteration variables are initialized to the Op input, and the results of the
  tf.WhileRegion op are the final values of the iteration variables.

  This implies that the operand and result types for tf.WhileRegion should be

		if a != load && a.Block.ID == target.Block.ID {
			args = append(args, a)
		}
	}

	// memPreds contains memory states known to be predecessors of load's
	// memory state. It is lazily initialized.
	var memPreds map[*Value]bool
	for i := 0; len(args) > 0; i++ {
		const limit = 100
		if i >= limit {
			// Give up if we have done a lot of iterations.
			return false
		}
		v := args[len(args)-1]