AArch64 port

This commit adds a back-end for the AArch64 architecture, namely ARMv8
in 64-bit mode.

1 files changed, 35 insertions, 0 deletions

diff --git a/aarch64/Machregsaux.ml b/aarch64/Machregsaux.ml
new file mode 100644
index 00000000..d7f10b9b
--- /dev/null
+++ b/aarch64/Machregsaux.ml
@@ -0,0 +1,35 @@
+(* *********************************************************************)
+(*                                                                     *)
+(*              The Compcert verified compiler                         *)
+(*                                                                     *)
+(*         Xavier Leroy, Collège de France and INRIA Paris             *)
+(*                                                                     *)
+(*  Copyright Institut National de Recherche en Informatique et en     *)
+(*  Automatique.  All rights reserved.  This file is distributed       *)
+(*  under the terms of the INRIA Non-Commercial License Agreement.     *)
+(*                                                                     *)
+(* *********************************************************************)
+
+(** Auxiliary functions on machine registers *)
+
+open Camlcoq
+open Machregs
+
+let register_names : (mreg, string) Hashtbl.t = Hashtbl.create 31
+
+let _ =
+  List.iter
+    (fun (s, r) -> Hashtbl.add register_names r (camlstring_of_coqstring s))
+    Machregs.register_names
+
+let is_scratch_register s =
+  s = "X16" || s = "x16" || s = "X30" || s = "x30"
+
+
+let name_of_register r =
+  try Some (Hashtbl.find register_names r) with Not_found -> None
+
+let register_by_name s =
+  Machregs.register_by_name (coqstring_uppercase_ascii_of_camlstring s)
+
+let can_reserve_register r = Conventions1.is_callee_save r