// This is OK as long as the packages that are farther down the
	// dependency tree turn on *more* analysis, as here.
	// (The unsafeptr check does not write any facts for use by
	// later vet runs, nor does unreachable.)
	if a.Package.Goroot && !VetExplicit && VetTool == "" {
		// Turn off -unsafeptr checks.
		// There's too much unsafe.Pointer code
		// that vet doesn't like in low-level packages

		{"pointer", ValueOf(ptr), unsafe.Pointer(ptr)},
		{"channel", ValueOf(ch), *(*unsafe.Pointer)(unsafe.Pointer(&ch))},
		{"map", ValueOf(m), *(*unsafe.Pointer)(unsafe.Pointer(&m))},
		{"unsafe.Pointer", ValueOf(unsafePtr), unsafePtr},
		{"function", ValueOf(fn), **(**unsafe.Pointer)(unsafe.Pointer(&fn))},
		{"slice", ValueOf(slice), unsafe.Pointer(unsafe.SliceData(slice))},
		{"string", ValueOf(s), unsafe.Pointer(unsafe.StringData(s))},
	}