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Diffstat (limited to 'aarch64/Machregsaux.ml')
-rw-r--r-- | aarch64/Machregsaux.ml | 35 |
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 |