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|
(* *************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* David Monniaux CNRS, VERIMAG *)
(* Léo Gourdin UGA, VERIMAG *)
(* *)
(* Copyright Kalray. Copyright VERIMAG. All rights reserved. *)
(* This file is distributed under the terms of the INRIA *)
(* Non-Commercial License Agreement. *)
(* *)
(* *************************************************************)
open Asmblock
(*type called_function = (Registers.reg, AST.ident) Datatypes.sum*)
type instruction = PBasic of Asmblock.basic | PControl of Asmblock.control
type opweights = {
pipelined_resource_bounds : int array;
nr_non_pipelined_units : int;
latency_of_op : instruction -> int -> int;
resources_of_op : instruction -> int -> int array;
(*non_pipelined_resources_of_op : Op.operation -> int -> int array;*)
(*latency_of_load : AST.trapping_mode -> AST.memory_chunk -> Op.addressing -> int -> int;*)
(*resources_of_load : AST.trapping_mode -> AST.memory_chunk -> Op.addressing -> int -> int array;*)
(*resources_of_store : AST.memory_chunk -> Op.addressing -> int -> int array;*)
(*resources_of_cond : Op.condition -> int -> int array;*)
(*latency_of_call : AST.signature -> called_function -> int;*)
(*resources_of_call : AST.signature -> called_function -> int array;*)
(*resources_of_builtin : AST.external_function -> int array*)
}
module Cortex_A53 = struct
let resource_bounds = [| 2; 2; 1; 1 |]
(* instr ; ALU ; MAC; LSU *)
let nr_non_pipelined_units = 1
let latency_of_op (i : instruction) (nargs : int) =
match i with
| PBasic (PArith (PArithP (_, _))) -> 1
| PBasic (PArith (PArithPP (i', _, _))) -> (
match i' with
| Psbfiz (_, _, _) | Psbfx (_, _, _) | Pubfiz (_, _, _) | Pubfx (_, _, _)
->
2
| Pfcvtds | Pfcvtsd
| Pfcvtzs (_, _)
| Pfcvtzu (_, _)
| Pfabs _ | Pfneg _
| Pscvtf (_, _)
| Pucvtf (_, _) ->
6
| _ -> 1)
| PBasic (PArith (PArithPPP (i', _, _, _))) -> (
match i' with
| Pasrv _ | Plslv _ | Plsrv _ | Prorv _ | Paddext _ | Psubext _ -> 2
| Psmulh | Pumulh -> 4
| Pfdiv _ | Psdiv _ | Pudiv _ -> 50
| _ -> 6)
| PBasic (PArith (PArithRR0R (_, _, _, _))) -> 2
| PBasic (PArith (PArithRR0 (_, _, _))) -> 1
| PBasic (PArith (PArithARRRR0 (_, _, _, _, _))) -> 4
| PBasic (PArith (PArithComparisonPP (_, _, _))) -> 6
| PBasic (PArith (PArithComparisonR0R (_, _, _))) -> 1
| PBasic (PArith (PArithComparisonP (i', _))) -> (
match i' with Pfcmp0 _ -> 6 | _ -> 1)
| PBasic (PArith (Pcset (_, _))) | PBasic (PArith (Pcsel (_, _, _, _))) -> 6
| PBasic (PArith _) -> 1
| PBasic (PLoad _) -> 3
| PBasic (PStore _) -> 3
| PBasic (Pallocframe (_, _)) -> 3
| PBasic (Pfreeframe (_, _)) -> 1
| PBasic (Ploadsymbol (_, _)) -> 1
| PBasic (Pcvtsw2x (_, _)) -> 2
| PBasic (Pcvtuw2x (_, _)) -> 2
| PBasic (Pcvtx2w _) -> 1
| PBasic (Pnop) -> 0
| PControl _ -> 6
let resources_of_op (i : instruction) (nargs : int) =
match i with
| PBasic (PArith (PArithP (i', _))) -> (
match i' with
| Pfmovimmd _ | Pfmovimms _ -> [| 1; 1; 0; 1 |]
| _ -> [| 1; 1; 0; 0 |])
| PBasic (PArith (PArithPP (i', _, _))) -> (
match i' with
| Pfcvtds | Pfcvtsd
| Pfcvtzs (_, _)
| Pfcvtzu (_, _)
| Pfabs _ | Pfneg _
| Pscvtf (_, _)
| Pucvtf (_, _) ->
[| 1 ; 1; 1; 0 |]
| _ -> [| 1; 1; 0; 0 |])
| PBasic (PArith (PArithPPP (i', _, _, _))) -> (
match i' with
| Pasrv _ | Plslv _ | Plsrv _ | Prorv _ | Paddext _ | Psubext _ -> [| 1; 1; 0; 0 |]
| Pfdiv _ | Psdiv _ | Pudiv _ -> [| 1; 0; 0; 0 |]
| _ -> [| 1; 1; 1; 0 |])
| PBasic (PArith (PArithRR0R (_, _, _, _))) -> [| 1; 1; 0; 0 |]
| PBasic (PArith (PArithRR0 (_, _, _))) -> [| 1; 1; 0; 0 |]
| PBasic (PArith (PArithARRRR0 (_, _, _, _, _))) -> [| 1; 1; 1; 0 |]
| PBasic (PArith (PArithComparisonPP (_, _, _))) -> [| 1; 1; 1; 0 |]
| PBasic (PArith (PArithComparisonR0R (_, _, _))) -> [| 1; 1; 0; 0 |]
| PBasic (PArith (PArithComparisonP (i', _))) -> (
match i' with Pfcmp0 _ -> [| 1; 1; 1; 0 |] | _ -> [| 1; 1; 0; 0 |])
| PBasic (PArith (Pcset (_, _))) | PBasic (PArith (Pcsel (_, _, _, _))) -> [| 1; 1; 1; 0 |]
| PBasic (PArith _) -> [| 1; 1; 0; 0 |]
| PBasic (PLoad _) -> [| 1; 0; 0; 1 |]
| PBasic (PStore _) -> [| 1; 0; 0; 1 |]
| PBasic (Pallocframe (_, _)) -> [| 1; 0; 0; 1 |]
| PBasic (Pfreeframe (_, _)) -> [| 1; 1; 0; 0 |]
| PBasic (Ploadsymbol (_, _)) -> [| 1; 1; 0; 0 |]
| PBasic (Pcvtsw2x (_, _)) -> [| 1; 1; 0; 0 |]
| PBasic (Pcvtuw2x (_, _)) -> [| 1; 1; 0; 0 |]
| PBasic (Pcvtx2w _) -> [| 1; 1; 0; 0 |]
| PBasic (Pnop) -> [| 0; 0; 0; 0 |]
| PControl _ -> resource_bounds
(*let non_pipelined_resources_of_op (op : operation) (nargs : int) =
match op with
| Odiv | Odivu -> [| 29 |]
| Odivfs -> [| 20 |]
| Odivl | Odivlu | Odivf -> [| 50 |]
| _ -> [| -1 |];;
let resources_of_cond (cmp : condition) (nargs : int) =
(match cmp with
| Ccompf _ (* r FP comparison *)
| Cnotcompf _ (* r negation of an FP comparison *)
| Ccompfzero _ (* r comparison with 0.0 *)
| Cnotcompfzero _ (* r negation of comparison with 0.0 *)
| Ccompfs _ (* r FP comparison *)
| Cnotcompfs _ (* r negation of an FP comparison *)
| Ccompfszero _ (* r equal to 0.0 *)
| Cnotcompfszero _ (* r not equal to 0.0 *) ->
[| 1; 1; 1; 0 |]
| _ -> [| 1; 1; 0; 0 |] )*)
end
let get_opweights () : opweights =
(*match !Clflags.option_mtune with*)
(*| "cortex-a53" | "cortex-a35" | "" ->*)
{
pipelined_resource_bounds = Cortex_A53.resource_bounds;
nr_non_pipelined_units = Cortex_A53.nr_non_pipelined_units;
latency_of_op = Cortex_A53.latency_of_op;
resources_of_op =
Cortex_A53.resources_of_op
(*non_pipelined_resources_of_op = Cortex_A53.non_pipelined_resources_of_op;*)
(*latency_of_load = Cortex_A53.latency_of_load;*)
(*resources_of_load = Cortex_A53.resources_of_load;*)
(*resources_of_store = Cortex_A53.resources_of_store;*)
(*resources_of_cond = Cortex_A53.resources_of_cond;*)
(*latency_of_call = Cortex_A53.latency_of_call;*)
(*resources_of_call = Cortex_A53.resources_of_call;*)
(*resources_of_builtin = Cortex_A53.resources_of_builtin*);
}
(*| xxx -> failwith (Printf.sprintf "unknown -mtune: %s" xxx);;*)
|
