Chris@10: (* Chris@10: * Copyright (c) 1997-1999 Massachusetts Institute of Technology Chris@10: * Copyright (c) 2003, 2007-11 Matteo Frigo Chris@10: * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology Chris@10: * Chris@10: * This program is free software; you can redistribute it and/or modify Chris@10: * it under the terms of the GNU General Public License as published by Chris@10: * the Free Software Foundation; either version 2 of the License, or Chris@10: * (at your option) any later version. Chris@10: * Chris@10: * This program is distributed in the hope that it will be useful, Chris@10: * but WITHOUT ANY WARRANTY; without even the implied warranty of Chris@10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the Chris@10: * GNU General Public License for more details. Chris@10: * Chris@10: * You should have received a copy of the GNU General Public License Chris@10: * along with this program; if not, write to the Free Software Chris@10: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Chris@10: * Chris@10: *) Chris@10: Chris@10: open Util Chris@10: open Genutil Chris@10: open C Chris@10: Chris@10: Chris@10: let usage = "Usage: " ^ Sys.argv.(0) ^ " -n " Chris@10: Chris@10: let uistride = ref Stride_variable Chris@10: let uostride = ref Stride_variable Chris@10: let uivstride = ref Stride_variable Chris@10: let uovstride = ref Stride_variable Chris@10: Chris@10: let speclist = [ Chris@10: "-with-istride", Chris@10: Arg.String(fun x -> uistride := arg_to_stride x), Chris@10: " specialize for given input stride"; Chris@10: Chris@10: "-with-ostride", Chris@10: Arg.String(fun x -> uostride := arg_to_stride x), Chris@10: " specialize for given output stride"; Chris@10: Chris@10: "-with-ivstride", Chris@10: Arg.String(fun x -> uivstride := arg_to_stride x), Chris@10: " specialize for given input vector stride"; Chris@10: Chris@10: "-with-ovstride", Chris@10: Arg.String(fun x -> uovstride := arg_to_stride x), Chris@10: " specialize for given output vector stride" Chris@10: ] Chris@10: Chris@10: let nonstandard_optimizer list_of_buddy_stores dag = Chris@10: let sched = standard_scheduler dag in Chris@10: let annot = Annotate.annotate list_of_buddy_stores sched in Chris@10: let _ = dump_asched annot in Chris@10: annot Chris@10: Chris@10: let generate n = Chris@10: let riarray = "ri" Chris@10: and iiarray = "ii" Chris@10: and roarray = "ro" Chris@10: and ioarray = "io" Chris@10: and istride = "is" Chris@10: and ostride = "os" Chris@10: and i = "i" Chris@10: and v = "v" Chris@10: in Chris@10: Chris@10: let sign = !Genutil.sign Chris@10: and name = !Magic.codelet_name Chris@10: and byvl x = choose_simd x (ctimes (CVar "(2 * VL)", x)) in Chris@10: let ename = expand_name name in Chris@10: Chris@10: let vistride = either_stride (!uistride) (C.SVar istride) Chris@10: and vostride = either_stride (!uostride) (C.SVar ostride) Chris@10: in Chris@10: Chris@10: let sovs = stride_to_string "ovs" !uovstride in Chris@10: let sivs = stride_to_string "ivs" !uivstride in Chris@10: Chris@10: let locations = unique_array_c n in Chris@10: let input = Chris@10: locative_array_c n Chris@10: (C.array_subscript riarray vistride) Chris@10: (C.array_subscript iiarray vistride) Chris@10: locations sivs in Chris@10: let output = Fft.dft sign n (load_array_c n input) in Chris@10: let oloc = Chris@10: locative_array_c n Chris@10: (C.array_subscript roarray vostride) Chris@10: (C.array_subscript ioarray vostride) Chris@10: locations sovs in Chris@10: let list_of_buddy_stores = Chris@10: let k = !Simdmagic.store_multiple in Chris@10: if (k > 1) then Chris@10: if (n mod k == 0) then Chris@10: List.append Chris@10: (List.map Chris@10: (fun i -> List.map (fun j -> (fst (oloc (k * i + j)))) (iota k)) Chris@10: (iota (n / k))) Chris@10: (List.map Chris@10: (fun i -> List.map (fun j -> (snd (oloc (k * i + j)))) (iota k)) Chris@10: (iota (n / k))) Chris@10: else failwith "invalid n for -store-multiple" Chris@10: else [] Chris@10: in Chris@10: Chris@10: let odag = store_array_c n oloc output in Chris@10: let annot = nonstandard_optimizer list_of_buddy_stores odag in Chris@10: Chris@10: let body = Block ( Chris@10: [Decl ("INT", i)], Chris@10: [For (Expr_assign (CVar i, CVar v), Chris@10: Binop (" > ", CVar i, Integer 0), Chris@10: list_to_comma Chris@10: [Expr_assign (CVar i, CPlus [CVar i; CUminus (byvl (Integer 1))]); Chris@10: Expr_assign (CVar riarray, CPlus [CVar riarray; Chris@10: byvl (CVar sivs)]); Chris@10: Expr_assign (CVar iiarray, CPlus [CVar iiarray; Chris@10: byvl (CVar sivs)]); Chris@10: Expr_assign (CVar roarray, CPlus [CVar roarray; Chris@10: byvl (CVar sovs)]); Chris@10: Expr_assign (CVar ioarray, CPlus [CVar ioarray; Chris@10: byvl (CVar sovs)]); Chris@10: make_volatile_stride (4*n) (CVar istride); Chris@10: make_volatile_stride (4*n) (CVar ostride) Chris@10: ], Chris@10: Asch annot) Chris@10: ]) Chris@10: in Chris@10: Chris@10: let tree = Chris@10: Fcn ((if !Magic.standalone then "void" else "static void"), ename, Chris@10: ([Decl (C.constrealtypep, riarray); Chris@10: Decl (C.constrealtypep, iiarray); Chris@10: Decl (C.realtypep, roarray); Chris@10: Decl (C.realtypep, ioarray); Chris@10: Decl (C.stridetype, istride); Chris@10: Decl (C.stridetype, ostride); Chris@10: Decl ("INT", v); Chris@10: Decl ("INT", "ivs"); Chris@10: Decl ("INT", "ovs")]), Chris@10: finalize_fcn body) Chris@10: Chris@10: in let desc = Chris@10: Printf.sprintf Chris@10: "static const kdft_desc desc = { %d, %s, %s, &GENUS, %s, %s, %s, %s };\n" Chris@10: n (stringify name) (flops_of tree) Chris@10: (stride_to_solverparm !uistride) (stride_to_solverparm !uostride) Chris@10: (choose_simd "0" (stride_to_solverparm !uivstride)) Chris@10: (choose_simd "0" (stride_to_solverparm !uovstride)) Chris@10: Chris@10: and init = Chris@10: (declare_register_fcn name) ^ Chris@10: "{" ^ Chris@10: " X(kdft_register)(p, " ^ ename ^ ", &desc);\n" ^ Chris@10: "}\n" Chris@10: Chris@10: in ((unparse tree) ^ "\n" ^ Chris@10: (if !Magic.standalone then "" else desc ^ init)) Chris@10: Chris@10: let main () = Chris@10: begin Chris@10: parse speclist usage; Chris@10: print_string (generate (check_size ())); Chris@10: end Chris@10: Chris@10: let _ = main()