Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/arm/neon-testgen.ml @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | b7f97abdc517 |
| children |
| rev | line source |
|---|---|
| 0 | 1 (* Auto-generate ARM Neon intrinsics tests. |
|
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2 Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
| 0 | 3 Contributed by CodeSourcery. |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it under | |
| 8 the terms of the GNU General Public License as published by the Free | |
| 9 Software Foundation; either version 3, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. | |
| 20 | |
| 21 This is an O'Caml program. The O'Caml compiler is available from: | |
| 22 | |
| 23 http://caml.inria.fr/ | |
| 24 | |
| 25 Or from your favourite OS's friendly packaging system. Tested with version | |
| 26 3.09.2, though other versions will probably work too. | |
| 27 | |
| 28 Compile with: | |
| 29 ocamlc -c neon.ml | |
| 30 ocamlc -o neon-testgen neon.cmo neon-testgen.ml | |
| 31 | |
| 32 Run with: | |
| 33 cd /path/to/gcc/testsuite/gcc.target/arm/neon | |
| 34 /path/to/neon-testgen | |
| 35 *) | |
| 36 | |
| 37 open Neon | |
| 38 | |
| 39 type c_type_flags = Pointer | Const | |
| 40 | |
| 41 (* Open a test source file. *) | |
| 42 let open_test_file dir name = | |
| 43 try | |
| 44 open_out (dir ^ "/" ^ name ^ ".c") | |
| 45 with Sys_error str -> | |
| 46 failwith ("Could not create test source file " ^ name ^ ": " ^ str) | |
| 47 | |
| 48 (* Emit prologue code to a test source file. *) | |
| 49 let emit_prologue chan test_name = | |
| 50 Printf.fprintf chan "/* Test the `%s' ARM Neon intrinsic. */\n" test_name; | |
| 51 Printf.fprintf chan "/* This file was autogenerated by neon-testgen. */\n\n"; | |
| 52 Printf.fprintf chan "/* { dg-do assemble } */\n"; | |
| 53 Printf.fprintf chan "/* { dg-require-effective-target arm_neon_ok } */\n"; | |
|
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
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54 Printf.fprintf chan "/* { dg-options \"-save-temps -O0\" } */\n"; |
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parents:
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55 Printf.fprintf chan "/* { dg-add-options arm_neon } */\n"; |
| 0 | 56 Printf.fprintf chan "\n#include \"arm_neon.h\"\n\n"; |
| 57 Printf.fprintf chan "void test_%s (void)\n{\n" test_name | |
| 58 | |
| 59 (* Emit declarations of local variables that are going to be passed | |
| 60 to an intrinsic, together with one to take a returned value if needed. *) | |
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61 let emit_automatics chan c_types features = |
| 0 | 62 let emit () = |
| 63 ignore ( | |
| 64 List.fold_left (fun arg_number -> fun (flags, ty) -> | |
| 65 let pointer_bit = | |
| 66 if List.mem Pointer flags then "*" else "" | |
| 67 in | |
| 68 (* Const arguments to builtins are directly | |
| 69 written in as constants. *) | |
| 70 if not (List.mem Const flags) then | |
| 71 Printf.fprintf chan " %s %sarg%d_%s;\n" | |
| 72 ty pointer_bit arg_number ty; | |
| 73 arg_number + 1) | |
| 74 0 (List.tl c_types)) | |
| 75 in | |
| 76 match c_types with | |
| 77 (_, return_ty) :: tys -> | |
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78 if return_ty <> "void" then begin |
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79 (* The intrinsic returns a value. We need to do explict register |
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80 allocation for vget_low tests or they fail because of copy |
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81 elimination. *) |
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82 ((if List.mem Fixed_return_reg features then |
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83 Printf.fprintf chan " register %s out_%s asm (\"d18\");\n" |
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84 return_ty return_ty |
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85 else |
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86 Printf.fprintf chan " %s out_%s;\n" return_ty return_ty); |
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87 emit ()) |
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parents:
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88 end else |
| 0 | 89 (* The intrinsic does not return a value. *) |
| 90 emit () | |
| 91 | _ -> assert false | |
| 92 | |
| 93 (* Emit code to call an intrinsic. *) | |
| 94 let emit_call chan const_valuator c_types name elt_ty = | |
| 95 (if snd (List.hd c_types) <> "void" then | |
| 96 Printf.fprintf chan " out_%s = " (snd (List.hd c_types)) | |
| 97 else | |
| 98 Printf.fprintf chan " "); | |
| 99 Printf.fprintf chan "%s_%s (" (intrinsic_name name) (string_of_elt elt_ty); | |
| 100 let print_arg chan arg_number (flags, ty) = | |
| 101 (* If the argument is of const type, then directly write in the | |
| 102 constant now. *) | |
| 103 if List.mem Const flags then | |
| 104 match const_valuator with | |
| 105 None -> | |
| 106 if List.mem Pointer flags then | |
| 107 Printf.fprintf chan "0" | |
| 108 else | |
| 109 Printf.fprintf chan "1" | |
| 110 | Some f -> Printf.fprintf chan "%s" (string_of_int (f arg_number)) | |
| 111 else | |
| 112 Printf.fprintf chan "arg%d_%s" arg_number ty | |
| 113 in | |
| 114 let rec print_args arg_number tys = | |
| 115 match tys with | |
| 116 [] -> () | |
| 117 | [ty] -> print_arg chan arg_number ty | |
| 118 | ty::tys -> | |
| 119 print_arg chan arg_number ty; | |
| 120 Printf.fprintf chan ", "; | |
| 121 print_args (arg_number + 1) tys | |
| 122 in | |
| 123 print_args 0 (List.tl c_types); | |
| 124 Printf.fprintf chan ");\n" | |
| 125 | |
| 126 (* Emit epilogue code to a test source file. *) | |
| 127 let emit_epilogue chan features regexps = | |
| 128 let no_op = List.exists (fun feature -> feature = No_op) features in | |
| 129 Printf.fprintf chan "}\n\n"; | |
| 130 (if not no_op then | |
| 131 List.iter (fun regexp -> | |
| 132 Printf.fprintf chan | |
| 133 "/* { dg-final { scan-assembler \"%s\" } } */\n" regexp) | |
| 134 regexps | |
| 135 else | |
| 136 () | |
| 137 ); | |
| 138 Printf.fprintf chan "/* { dg-final { cleanup-saved-temps } } */\n" | |
| 139 | |
| 140 (* Check a list of C types to determine which ones are pointers and which | |
| 141 ones are const. *) | |
| 142 let check_types tys = | |
| 143 let tys' = | |
| 144 List.map (fun ty -> | |
| 145 let len = String.length ty in | |
| 146 if len > 2 && String.get ty (len - 2) = ' ' | |
| 147 && String.get ty (len - 1) = '*' | |
| 148 then ([Pointer], String.sub ty 0 (len - 2)) | |
| 149 else ([], ty)) tys | |
| 150 in | |
| 151 List.map (fun (flags, ty) -> | |
| 152 if String.length ty > 6 && String.sub ty 0 6 = "const " | |
| 153 then (Const :: flags, String.sub ty 6 ((String.length ty) - 6)) | |
| 154 else (flags, ty)) tys' | |
| 155 | |
| 156 (* Given an intrinsic shape, produce a regexp that will match | |
| 157 the right-hand sides of instructions generated by an intrinsic of | |
| 158 that shape. *) | |
| 159 let rec analyze_shape shape = | |
| 160 let rec n_things n thing = | |
| 161 match n with | |
| 162 0 -> [] | |
| 163 | n -> thing :: (n_things (n - 1) thing) | |
| 164 in | |
| 165 let rec analyze_shape_elt elt = | |
| 166 match elt with | |
| 167 Dreg -> "\\[dD\\]\\[0-9\\]+" | |
| 168 | Qreg -> "\\[qQ\\]\\[0-9\\]+" | |
| 169 | Corereg -> "\\[rR\\]\\[0-9\\]+" | |
| 170 | Immed -> "#\\[0-9\\]+" | |
| 171 | VecArray (1, elt) -> | |
| 172 let elt_regexp = analyze_shape_elt elt in | |
| 173 "((\\\\\\{" ^ elt_regexp ^ "\\\\\\})|(" ^ elt_regexp ^ "))" | |
| 174 | VecArray (n, elt) -> | |
| 175 let elt_regexp = analyze_shape_elt elt in | |
| 176 let alt1 = elt_regexp ^ "-" ^ elt_regexp in | |
| 177 let alt2 = commas (fun x -> x) (n_things n elt_regexp) "" in | |
| 178 "\\\\\\{((" ^ alt1 ^ ")|(" ^ alt2 ^ "))\\\\\\}" | |
| 179 | (PtrTo elt | CstPtrTo elt) -> | |
| 180 "\\\\\\[" ^ (analyze_shape_elt elt) ^ "\\\\\\]" | |
| 181 | Element_of_dreg -> (analyze_shape_elt Dreg) ^ "\\\\\\[\\[0-9\\]+\\\\\\]" | |
| 182 | Element_of_qreg -> (analyze_shape_elt Qreg) ^ "\\\\\\[\\[0-9\\]+\\\\\\]" | |
| 183 | All_elements_of_dreg -> (analyze_shape_elt Dreg) ^ "\\\\\\[\\\\\\]" | |
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184 | Alternatives (elts) -> "(" ^ (String.concat "|" (List.map analyze_shape_elt elts)) ^ ")" |
| 0 | 185 in |
| 186 match shape with | |
| 187 All (n, elt) -> commas analyze_shape_elt (n_things n elt) "" | |
| 188 | Long -> (analyze_shape_elt Qreg) ^ ", " ^ (analyze_shape_elt Dreg) ^ | |
| 189 ", " ^ (analyze_shape_elt Dreg) | |
| 190 | Long_noreg elt -> (analyze_shape_elt elt) ^ ", " ^ (analyze_shape_elt elt) | |
| 191 | Wide -> (analyze_shape_elt Qreg) ^ ", " ^ (analyze_shape_elt Qreg) ^ | |
| 192 ", " ^ (analyze_shape_elt Dreg) | |
| 193 | Wide_noreg elt -> analyze_shape (Long_noreg elt) | |
| 194 | Narrow -> (analyze_shape_elt Dreg) ^ ", " ^ (analyze_shape_elt Qreg) ^ | |
| 195 ", " ^ (analyze_shape_elt Qreg) | |
| 196 | Use_operands elts -> commas analyze_shape_elt (Array.to_list elts) "" | |
| 197 | By_scalar Dreg -> | |
| 198 analyze_shape (Use_operands [| Dreg; Dreg; Element_of_dreg |]) | |
| 199 | By_scalar Qreg -> | |
| 200 analyze_shape (Use_operands [| Qreg; Qreg; Element_of_dreg |]) | |
| 201 | By_scalar _ -> assert false | |
| 202 | Wide_lane -> | |
| 203 analyze_shape (Use_operands [| Qreg; Dreg; Element_of_dreg |]) | |
| 204 | Wide_scalar -> | |
| 205 analyze_shape (Use_operands [| Qreg; Dreg; Element_of_dreg |]) | |
| 206 | Pair_result elt -> | |
| 207 let elt_regexp = analyze_shape_elt elt in | |
| 208 elt_regexp ^ ", " ^ elt_regexp | |
| 209 | Unary_scalar _ -> "FIXME Unary_scalar" | |
| 210 | Binary_imm elt -> analyze_shape (Use_operands [| elt; elt; Immed |]) | |
| 211 | Narrow_imm -> analyze_shape (Use_operands [| Dreg; Qreg; Immed |]) | |
| 212 | Long_imm -> analyze_shape (Use_operands [| Qreg; Dreg; Immed |]) | |
| 213 | |
| 214 (* Generate tests for one intrinsic. *) | |
| 215 let test_intrinsic dir opcode features shape name munge elt_ty = | |
| 216 (* Open the test source file. *) | |
| 217 let test_name = name ^ (string_of_elt elt_ty) in | |
| 218 let chan = open_test_file dir test_name in | |
| 219 (* Work out what argument and return types the intrinsic has. *) | |
| 220 let c_arity, new_elt_ty = munge shape elt_ty in | |
| 221 let c_types = check_types (strings_of_arity c_arity) in | |
| 222 (* Extract any constant valuator (a function specifying what constant | |
| 223 values are to be written into the intrinsic call) from the features | |
| 224 list. *) | |
| 225 let const_valuator = | |
| 226 try | |
| 227 match (List.find (fun feature -> match feature with | |
| 228 Const_valuator _ -> true | |
| 229 | _ -> false) features) with | |
| 230 Const_valuator f -> Some f | |
| 231 | _ -> assert false | |
| 232 with Not_found -> None | |
| 233 in | |
| 234 (* Work out what instruction name(s) to expect. *) | |
| 235 let insns = get_insn_names features name in | |
| 236 let no_suffix = (new_elt_ty = NoElts) in | |
| 237 let insns = | |
| 238 if no_suffix then insns | |
| 239 else List.map (fun insn -> | |
| 240 let suffix = string_of_elt_dots new_elt_ty in | |
| 241 insn ^ "\\." ^ suffix) insns | |
| 242 in | |
| 243 (* Construct a regexp to match against the expected instruction name(s). *) | |
| 244 let insn_regexp = | |
| 245 match insns with | |
| 246 [] -> assert false | |
| 247 | [insn] -> insn | |
| 248 | _ -> | |
| 249 let rec calc_regexp insns cur_regexp = | |
| 250 match insns with | |
| 251 [] -> cur_regexp | |
| 252 | [insn] -> cur_regexp ^ "(" ^ insn ^ "))" | |
| 253 | insn::insns -> calc_regexp insns (cur_regexp ^ "(" ^ insn ^ ")|") | |
| 254 in calc_regexp insns "(" | |
| 255 in | |
| 256 (* Construct regexps to match against the instructions that this | |
| 257 intrinsic expands to. Watch out for any writeback character and | |
| 258 comments after the instruction. *) | |
| 259 let regexps = List.map (fun regexp -> insn_regexp ^ "\\[ \t\\]+" ^ regexp ^ | |
| 260 "!?\\(\\[ \t\\]+@\\[a-zA-Z0-9 \\]+\\)?\\n") | |
| 261 (analyze_all_shapes features shape analyze_shape) | |
| 262 in | |
| 263 (* Emit file and function prologues. *) | |
| 264 emit_prologue chan test_name; | |
| 265 (* Emit local variable declarations. *) | |
|
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parents:
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diff
changeset
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266 emit_automatics chan c_types features; |
| 0 | 267 Printf.fprintf chan "\n"; |
| 268 (* Emit the call to the intrinsic. *) | |
| 269 emit_call chan const_valuator c_types name elt_ty; | |
| 270 (* Emit the function epilogue and the DejaGNU scan-assembler directives. *) | |
| 271 emit_epilogue chan features regexps; | |
| 272 (* Close the test file. *) | |
| 273 close_out chan | |
| 274 | |
| 275 (* Generate tests for one element of the "ops" table. *) | |
| 276 let test_intrinsic_group dir (opcode, features, shape, name, munge, types) = | |
| 277 List.iter (test_intrinsic dir opcode features shape name munge) types | |
| 278 | |
| 279 (* Program entry point. *) | |
| 280 let _ = | |
| 281 let directory = if Array.length Sys.argv <> 1 then Sys.argv.(1) else "." in | |
| 282 List.iter (test_intrinsic_group directory) (reinterp @ ops) | |
| 283 |