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Diffstat (limited to 'mppa_k1c/Machregsaux.ml')
-rw-r--r-- | mppa_k1c/Machregsaux.ml | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/mppa_k1c/Machregsaux.ml b/mppa_k1c/Machregsaux.ml new file mode 100644 index 00000000..9c4175ed --- /dev/null +++ b/mppa_k1c/Machregsaux.ml @@ -0,0 +1,38 @@ +(* *********************************************************************) +(* *) +(* The Compcert verified compiler *) +(* *) +(* Xavier Leroy, INRIA Paris-Rocquencourt *) +(* *) +(* 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 r = false + +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 + +let class_of_type = function + | AST.Tint | AST.Tlong + | AST.Tfloat | AST.Tsingle -> 0 + | AST.Tany32 | AST.Tany64 -> assert false |