return goarch == "amd64" || goarch == "arm64"
	case "freebsd", "netbsd", "windows":
		return goarch == "amd64"
	default:
		return false
	}
}

// MSanSupported reports whether goos/goarch supports the memory
// sanitizer option.
func MSanSupported(goos, goarch string) bool {
	switch goos {
	case "linux":
		return goarch == "amd64" || goarch == "arm64" || goarch == "loong64"
	case "freebsd":
		return goarch == "amd64"

	add("go-builder", script.BoolCondition("GO_BUILDER_NAME is non-empty", testenv.Builder() != ""))
	add("link", lazyBool("testenv.HasLink()", testenv.HasLink))
	add("msan", sysCondition("-msan", platform.MSanSupported, true))
	add("mustlinkext", script.Condition("platform always requires external linking", mustLinkExt))
	add("net", script.PrefixCondition("can connect to external network host <suffix>", hasNet))