+static bool modifiedTimeGT(StringRef LHS, StringRef RHS) {
+ sys::fs::file_status Status;
+ if (sys::fs::status(LHS, Status))
+ return false;
+ auto LHSTime = Status.getLastModificationTime();
+ if (sys::fs::status(RHS, Status))
+ return false;
+ auto RHSTime = Status.getLastModificationTime();
+ return LHSTime > RHSTime;
+}
+