Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/arm/neon-testgen.ml @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
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date | Mon, 24 May 2010 12:47:05 +0900 |
parents | 77e2b8dfacca |
children | f6334be47118 |
rev | line source |
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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"; | |
54 Printf.fprintf chan | |
55 "/* { dg-options \"-save-temps -O0 -mfpu=neon -mfloat-abi=softfp\" } */\n"; | |
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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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 |