// and value.String() for the flag's value.
func CountFlagValue(prefix string, flagSet flag.FlagSet, flagName string) {
	// TODO(matloob): Maybe pass in a list of flagNames if we end up counting
	// values for more than one?
	// TODO(matloob): Add this to x/telemetry?
	flagSet.Visit(func(f *flag.Flag) {
		if f.Name == flagName {
			counter.New(prefix + f.Name + ":" + f.Value.String()).Inc()
		}
	})
}

# Benchmark labels, file outside gopath
# TODO(matloob): This test was called TestBenchmarkLabelsOutsideGOPATH
# why "OutsideGOPATH"? Does the go command need to be run outside GOPATH?
# Do the files need to exist outside GOPATH?
cp $GOPATH/src/standalone_benchmark_test.go $WORK/tmp/standalone_benchmark_test.go
go test -run '^$' -bench . $WORK/tmp/standalone_benchmark_test.go
stdout '^goos: '$GOOS
stdout '^goarch: '$GOARCH
! stdout '^pkg:'
! stderr '^pkg:'

[GOOS:solaris] skip "skipping on Solaris; see golang.org/issue/13247"
[GOOS:illumos] skip "skipping on Solaris; see golang.org/issue/13247"

go build -o $WORK/exe1$GOEXE cgotest
go build -x -o $WORK/exe2$GOEXE cgotest

# TODO(matloob): skip if stderr does not contain '-fdebug-prefix-map=\$WORK'

cmp $WORK/exe1$GOEXE $WORK/exe2$GOEXE

-- go.mod --
module cgotest

go 1.16
-- m.go --
package cgotest

import "C"

//go:noescape
func Storeuintptr(ptr *uintptr, new uintptr)

//go:noescape
func Loaduintptr(ptr *uintptr) uintptr

//go:noescape
func Loaduint(ptr *uint) uint

// TODO(matloob): Should these functions have the go:noescape annotation?

//go:noescape
func Loadint32(ptr *int32) int32

//go:noescape
func Loadint64(ptr *int64) int64

//go:noescape

! stdout .


-- m/go.mod --
// TODO(matloob): how do overlays work with go.mod (especially if mod=readonly)
module m

go 1.16

-- m/dir2/h.go --
package dir2

func PrintMessage() {
	printMessage()
}
-- m/dir/foo.txt --
The build action code currently expects the package directory
to exist, so it can run the compiler in that directory.
TODO(matloob): Remove this requirement.

// A label overwrites a prior label with the same key.
func WithLabels(ctx context.Context, labels LabelSet) context.Context {
	parentLabels := labelValue(ctx)
	childLabels := make(labelMap, len(parentLabels))
	// TODO(matloob): replace the map implementation with something
	// more efficient so creating a child context WithLabels doesn't need
	// to clone the map.
	for k, v := range parentLabels {
		childLabels[k] = v
	}

		Phase:    phaseFlowStart,
		TID:      from.tid,
	})
	tc.t.writeEvent(&format.Event{
		Name:      from.name + " -> " + to.name,
		Category:  "flow", // TODO(matloob): Add Category to Flow?
		ID:        id,
		Time:      float64(to.start.UnixNano()) / float64(time.Microsecond),
		Phase:     phaseFlowEnd,
		TID:       to.tid,
		BindPoint: bindEnclosingSlice,
	})
}

			// return an error to make the module hash invalid.
			// Symlink directories in modules are tricky, so we won't index
			// modules that contain them.
			// TODO(matloob): perhaps don't return this error if the symlink leads to
			// a directory with a go.mod file.
			return ErrNotIndexed
		}
	}
	return nil
}