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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 (*r [rd] is [r1] extended to double-precision float *)
(*c Conversions between int and float: *)
| Ofloatconst _ | Osingleconst _
| 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 (*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 (*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 (*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 ->
2 (*r [rd = float32_of_unsigned_int(r1)] *)
| OEfeqd | OEfltd | OEfeqs | OEflts | OEfles | OEfled | Obits_of_single
| Obits_of_float | Osingle_of_bits | Ofloat_of_bits ->
2
| OEloadli _ -> 2
| 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 _ -> 2
| Ccompfs _ | Cnotcompfs _ -> 2)
| OEmayundef _ -> 0
| _ -> 1
let resources_of_op (op : operation) (nargs : int) =
match op with OEmayundef _ -> [| 0 |] | _ -> 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)
|
