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|
open Op;;
open PrepassSchedulingOracleDeps;;
module Rocket =
struct
(* Attempt at modeling the Rocket core *)
let resource_bounds = [| 1 |];;
let nr_non_pipelined_units = 1;; (* divider *)
let latency_of_op (op : operation) (nargs : int) =
match op with
| Omul | Omulhs | Omulhu
| Omull | Omullhs | Omullhu -> 4
| Onegf -> 1 (*r [rd = - r1] *)
| Oabsf (*r [rd = abs(r1)] *)
| Oaddf (*r [rd = r1 + r2] *)
| Osubf (*r [rd = r1 - r2] *)
| Omulf -> 6 (*r [rd = r1 * r2] *)
| Onegfs -> 1 (*r [rd = - r1] *)
| Oabsfs (*r [rd = abs(r1)] *)
| Oaddfs (*r [rd = r1 + r2] *)
| Osubfs (*r [rd = r1 - r2] *)
| Omulfs -> 4 (*r [rd = r1 * r2] *)
| Osingleoffloat (*r [rd] is [r1] truncated to single-precision float *)
| Ofloatofsingle -> 4 (*r [rd] is [r1] extended to double-precision float *)
(*c Conversions between int and float: *)
| Ointoffloat (*r [rd = signed_int_of_float64(r1)] *)
| Ointuoffloat (*r [rd = unsigned_int_of_float64(r1)] *)
| Ofloatofint (*r [rd = float64_of_signed_int(r1)] *)
| Ofloatofintu -> 6 (*r [rd = float64_of_unsigned_int(r1)] *)
| Ointofsingle (*r [rd = signed_int_of_float32(r1)] *)
| Ointuofsingle (*r [rd = unsigned_int_of_float32(r1)] *)
| Osingleofint (*r [rd = float32_of_signed_int(r1)] *)
| Osingleofintu -> 4 (*r [rd = float32_of_unsigned_int(r1)] *)
| Olongoffloat (*r [rd = signed_long_of_float64(r1)] *)
| Olonguoffloat (*r [rd = unsigned_long_of_float64(r1)] *)
| Ofloatoflong (*r [rd = float64_of_signed_long(r1)] *)
| Ofloatoflongu -> 6 (*r [rd = float64_of_unsigned_long(r1)] *)
| Olongofsingle (*r [rd = signed_long_of_float32(r1)] *)
| Olonguofsingle (*r [rd = unsigned_long_of_float32(r1)] *)
| Osingleoflong (*r [rd = float32_of_signed_long(r1)] *)
| Osingleoflongu -> 4 (*r [rd = float32_of_unsigned_int(r1)] *)
| Odiv | Odivu | Odivl | Odivlu -> 16
| Odivfs -> 35
| Odivf -> 50
| Ocmp cond ->
(match cond with
| Ccomp _
| Ccompu _
| Ccompimm _
| Ccompuimm _
| Ccompl _
| Ccomplu _
| Ccomplimm _
| Ccompluimm _
| CEbeqw _
| CEbnew _
| CEbequw _
| CEbneuw _
| CEbltw _
| CEbltuw _
| CEbgew _
| CEbgeuw _
| CEbeql _
| CEbnel _
| CEbequl _
| CEbneul _
| CEbltl _
| CEbltul _
| CEbgel _
| CEbgeul _ -> 1
| Ccompf _
| Cnotcompf _ -> 6
| Ccompfs _
| Cnotcompfs _ -> 4)
| _ -> 1;;
let resources_of_op (op : operation) (nargs : int) = 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 (cond : condition) (nargs : int) = resource_bounds;;
let latency_of_load trap chunk (addr : addressing) (nargs : int) = 3;;
let latency_of_call _ _ = 6;;
let resources_of_load trap chunk addressing nargs = resource_bounds;;
let resources_of_store chunk addressing nargs = resource_bounds;;
let resources_of_call _ _ = resource_bounds;;
let resources_of_builtin _ = resource_bounds;;
end;;
module SweRV_EH1 =
struct
(* Attempt at modeling SweRV EH1
[| issues ; LSU ; multiplier |] *)
let resource_bounds = [| 2 ; 1; 1 |];;
let nr_non_pipelined_units = 1;; (* divider *)
let latency_of_op (op : operation) (nargs : int) =
match op with
| Omul | Omulhs | Omulhu
| Omull | Omullhs | Omullhu -> 3
| Odiv | Odivu | Odivl | Odivlu -> 16
| _ -> 1;;
let resources_of_op (op : operation) (nargs : int) =
match op with
| Omul | Omulhs | Omulhu
| Omull | Omullhs | Omullhu -> [| 1 ; 0 ; 1 |]
| Odiv | Odivu | Odivl | Odivlu -> [| 0 ; 0; 0 |]
| _ -> [| 1; 0; 0 |];;
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 (cond : condition) (nargs : int) = [| 1; 0; 0 |];;
let latency_of_load trap chunk (addr : addressing) (nargs : int) = 3;;
let latency_of_call _ _ = 6;;
let resources_of_load trap chunk addressing nargs = [| 1; 1; 0 |];;
let resources_of_store chunk addressing nargs = [| 1; 1; 0 |];;
let resources_of_call _ _ = resource_bounds;;
let resources_of_builtin _ = resource_bounds;;
end;;
let get_opweights () : opweights =
match !Clflags.option_mtune with
| "rocket" | "" ->
{
pipelined_resource_bounds = Rocket.resource_bounds;
nr_non_pipelined_units = Rocket.nr_non_pipelined_units;
latency_of_op = Rocket.latency_of_op;
resources_of_op = Rocket.resources_of_op;
non_pipelined_resources_of_op = Rocket.non_pipelined_resources_of_op;
latency_of_load = Rocket.latency_of_load;
resources_of_load = Rocket.resources_of_load;
resources_of_store = Rocket.resources_of_store;
resources_of_cond = Rocket.resources_of_cond;
latency_of_call = Rocket.latency_of_call;
resources_of_call = Rocket.resources_of_call;
resources_of_builtin = Rocket.resources_of_builtin
}
| "SweRV_EH1" | "EH1" ->
{
pipelined_resource_bounds = SweRV_EH1.resource_bounds;
nr_non_pipelined_units = SweRV_EH1.nr_non_pipelined_units;
latency_of_op = SweRV_EH1.latency_of_op;
resources_of_op = SweRV_EH1.resources_of_op;
non_pipelined_resources_of_op = SweRV_EH1.non_pipelined_resources_of_op;
latency_of_load = SweRV_EH1.latency_of_load;
resources_of_load = SweRV_EH1.resources_of_load;
resources_of_store = SweRV_EH1.resources_of_store;
resources_of_cond = SweRV_EH1.resources_of_cond;
latency_of_call = SweRV_EH1.latency_of_call;
resources_of_call = SweRV_EH1.resources_of_call;
resources_of_builtin = SweRV_EH1.resources_of_builtin
}
| xxx -> failwith (Printf.sprintf "unknown -mtune: %s" xxx);;
|
