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Diffstat (limited to 'asmcomp/arm/CSE.ml')
| -rw-r--r-- | asmcomp/arm/CSE.ml | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/asmcomp/arm/CSE.ml b/asmcomp/arm/CSE.ml new file mode 100644 index 0000000000..00282f1f55 --- /dev/null +++ b/asmcomp/arm/CSE.ml @@ -0,0 +1,38 @@ +(***********************************************************************) +(* *) +(* OCaml *) +(* *) +(* Xavier Leroy, projet Gallium, INRIA Rocquencourt *) +(* *) +(* Copyright 2014 Institut National de Recherche en Informatique et *) +(* en Automatique. All rights reserved. This file is distributed *) +(* under the terms of the Q Public License version 1.0. *) +(* *) +(***********************************************************************) + +(* CSE for ARM *) + +open Arch +open Mach +open CSEgen + +class cse = object (self) + +inherit cse_generic as super + +method! class_of_operation op = + match op with + | Ispecific(Ishiftcheckbound _) -> Op_checkbound + | Ispecific _ -> Op_pure + | _ -> super#class_of_operation op + +method! is_cheap_operation op = + match op with + | Iconst_int n | Iconst_blockheader n -> n <= 255n && n >= 0n + | _ -> false + +end + +let fundecl f = + (new cse)#fundecl f + |