1 files changed, 63 insertions, 0 deletions
diff --git a/driver/Timing.ml b/driver/Timing.ml
new file mode 100644
index 00000000..b45dad40
--- /dev/null
+++ b/driver/Timing.ml
@@ -0,0 +1,63 @@
+(* *********************************************************************)
+(*                                                                     *)
+(*              The Compcert verified compiler                         *)
+(*                                                                     *)
+(*          Bernhard Schommer, AbsInt Angewandte Informatik GmbH       *)
+(*                                                                     *)
+(*  AbsInt Angewandte Informatik GmbH. All rights reserved. This file  *)
+(*  is distributed under the terms of the INRIA Non-Commercial         *)
+(*  License Agreement.                                                 *)
+(*                                                                     *)
+(* *********************************************************************)
+
+open Clflags
+
+(** Timing facility *)
+
+let timers : (string * float) list ref = ref []
+
+let add_to_timer name time =
+  let rec add = function
+  | [] -> [name, time]
+  | (name1, time1 as nt1) :: rem ->
+      if name1 = name then (name1, time1 +. time) :: rem else nt1 :: add rem
+  in timers := add !timers
+
+let time name fn arg =
+  if not !option_timings then
+    fn arg
+  else begin
+    let start = Sys.time() in
+    try
+      let res = fn arg in
+      add_to_timer name (Sys.time() -. start);
+      res
+    with x ->
+      add_to_timer name (Sys.time() -. start);
+      raise x
+  end
+
+let time2 name fn arg1 arg2 = time name (fun () -> fn arg1 arg2) ()
+let time3 name fn arg1 arg2 arg3 = time name (fun () -> fn arg1 arg2 arg3) ()
+
+let time_coq name fn arg =
+  if not !option_timings then
+    fn arg
+  else begin
+    let start = Sys.time() in
+    try
+      let res = fn arg in
+      add_to_timer (Camlcoq.camlstring_of_coqstring name) (Sys.time() -. start);
+      res
+    with x ->
+      add_to_timer (Camlcoq.camlstring_of_coqstring name) (Sys.time() -. start);
+      raise x
+  end
+
+let print_timers () =
+  if !option_timings then
+    List.iter
+      (fun (name, time) -> Printf.printf "%7.2fs  %s\n" time name)
+      !timers
+
+let _ = at_exit print_timers