go/src/runtime/align_test.go

// Check that 64-bit fields on which we apply atomic operations
// are aligned to 8 bytes. This can be a problem on 32-bit systems.
func TestAtomicAlignment(t *testing.T) { … }

type Visitor …

func (v *Visitor) Visit(n ast.Node) ast.Visitor { … }

// checkAddr checks to make sure n is a properly aligned address for a 64-bit atomic operation.
func (v *Visitor) checkAddr(n ast.Node) { … }

func (v *Visitor) print(n ast.Node) string { … }

// buildableFiles returns the list of files in the given directory
// that are actually used for the build, given GOOS/GOARCH restrictions.
func buildableFiles(t *testing.T, dir string) []string { … }