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+(* APPLE LOCAL file v7 support. Merge from Codesourcery *)
+(* Auto-generate ARM Neon intrinsics tests.
+ Copyright (C) 2006 Free Software Foundation, Inc.
+ Contributed by CodeSourcery.
+
+ This file is part of GCC.
+
+ GCC is free software; you can redistribute it and/or modify it under
+ the terms of the GNU General Public License as published by the Free
+ Software Foundation; either version 2, or (at your option) any later
+ version.
+
+ GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GCC; see the file COPYING. If not, write to the Free
+ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+ This is an O'Caml program. The O'Caml compiler is available from:
+
+ http://caml.inria.fr/
+
+ Or from your favourite OS's friendly packaging system. Tested with version
+ 3.09.2, though other versions will probably work too.
+
+ Compile with:
+ ocamlc -c neon.ml
+ ocamlc -o neon-testgen neon.cmo neon-testgen.ml
+*)
+
+open Neon
+
+type c_type_flags = Pointer | Const
+
+(* Open a test source file. *)
+let open_test_file dir name =
+ try
+ open_out (dir ^ "/" ^ name ^ ".c")
+ with Sys_error str ->
+ failwith ("Could not create test source file " ^ name ^ ": " ^ str)
+
+(* Emit prologue code to a test source file. *)
+let emit_prologue chan test_name =
+ Printf.fprintf chan "/* Test the `%s' ARM Neon intrinsic. */\n" test_name;
+ Printf.fprintf chan "/* This file was autogenerated by neon-testgen. */\n\n";
+ Printf.fprintf chan "/* { dg-do assemble } */\n";
+ Printf.fprintf chan "/* { dg-require-effective-target arm_neon_ok } */\n";
+ Printf.fprintf chan
+ "/* { dg-options \"-save-temps -O0 -mfpu=neon -mfloat-abi=softfp\" } */\n";
+ Printf.fprintf chan "\n#include \"arm_neon.h\"\n\n";
+ Printf.fprintf chan "void test_%s (void)\n{\n" test_name
+
+(* Emit declarations of local variables that are going to be passed
+ to an intrinsic, together with one to take a returned value if needed. *)
+let emit_automatics chan c_types =
+ let emit () =
+ ignore (
+ List.fold_left (fun arg_number -> fun (flags, ty) ->
+ let pointer_bit =
+ if List.mem Pointer flags then "*" else ""
+ in
+ (* Const arguments to builtins are directly
+ written in as constants. *)
+ if not (List.mem Const flags) then
+ Printf.fprintf chan " %s %sarg%d_%s;\n"
+ ty pointer_bit arg_number ty;
+ arg_number + 1)
+ 0 (List.tl c_types))
+ in
+ match c_types with
+ (_, return_ty) :: tys ->
+ if return_ty <> "void" then
+ (* The intrinsic returns a value. *)
+ (Printf.fprintf chan " %s out_%s;\n" return_ty return_ty;
+ emit ())
+ else
+ (* The intrinsic does not return a value. *)
+ emit ()
+ | _ -> assert false
+
+(* Emit code to call an intrinsic. *)
+let emit_call chan const_valuator c_types name elt_ty =
+ (if snd (List.hd c_types) <> "void" then
+ Printf.fprintf chan " out_%s = " (snd (List.hd c_types))
+ else
+ Printf.fprintf chan " ");
+ Printf.fprintf chan "%s_%s (" (intrinsic_name name) (string_of_elt elt_ty);
+ let print_arg chan arg_number (flags, ty) =
+ (* If the argument is of const type, then directly write in the
+ constant now. *)
+ if List.mem Const flags then
+ match const_valuator with
+ None ->
+ if List.mem Pointer flags then
+ Printf.fprintf chan "0"
+ else
+ Printf.fprintf chan "1"
+ | Some f -> Printf.fprintf chan "%s" (string_of_int (f arg_number))
+ else
+ Printf.fprintf chan "arg%d_%s" arg_number ty
+ in
+ let rec print_args arg_number tys =
+ match tys with
+ [] -> ()
+ | [ty] -> print_arg chan arg_number ty
+ | ty::tys ->
+ print_arg chan arg_number ty;
+ Printf.fprintf chan ", ";
+ print_args (arg_number + 1) tys
+ in
+ print_args 0 (List.tl c_types);
+ Printf.fprintf chan ");\n"
+
+(* Emit epilogue code to a test source file. *)
+let emit_epilogue chan features regexps =
+ let no_op = List.exists (fun feature -> feature = No_op) features in
+ Printf.fprintf chan "}\n\n";
+ (if not no_op then
+ List.iter (fun regexp ->
+ Printf.fprintf chan
+ "/* { dg-final { scan-assembler \"%s\" } } */\n" regexp)
+ regexps
+ else
+ ()
+ );
+ Printf.fprintf chan "/* { dg-final { cleanup-saved-temps } } */\n"
+
+(* Check a list of C types to determine which ones are pointers and which
+ ones are const. *)
+let check_types tys =
+ let tys' =
+ List.map (fun ty ->
+ let len = String.length ty in
+ if len > 2 && String.get ty (len - 2) = ' '
+ && String.get ty (len - 1) = '*'
+ then ([Pointer], String.sub ty 0 (len - 2))
+ else ([], ty)) tys
+ in
+ List.map (fun (flags, ty) ->
+ if String.length ty > 6 && String.sub ty 0 6 = "const "
+ then (Const :: flags, String.sub ty 6 ((String.length ty) - 6))
+ else (flags, ty)) tys'
+
+(* Given an intrinsic shape, produce a regexp that will match
+ the right-hand sides of instructions generated by an intrinsic of
+ that shape. *)
+let rec analyze_shape shape =
+ let rec n_things n thing =
+ match n with
+ 0 -> []
+ | n -> thing :: (n_things (n - 1) thing)
+ in
+ let rec analyze_shape_elt elt =
+ match elt with
+ Dreg -> "\\[dD\\]\\[0-9\\]+"
+ | Qreg -> "\\[qQ\\]\\[0-9\\]+"
+ | Corereg -> "\\[rR\\]\\[0-9\\]+"
+ | Immed -> "#\\[0-9\\]+"
+ | VecArray (1, elt) ->
+ let elt_regexp = analyze_shape_elt elt in
+ "((\\\\\\{" ^ elt_regexp ^ "\\\\\\})|(" ^ elt_regexp ^ "))"
+ | VecArray (n, elt) ->
+ let elt_regexp = analyze_shape_elt elt in
+ let alt1 = elt_regexp ^ "-" ^ elt_regexp in
+ let alt2 = commas (fun x -> x) (n_things n elt_regexp) "" in
+ "\\\\\\{((" ^ alt1 ^ ")|(" ^ alt2 ^ "))\\\\\\}"
+ | (PtrTo elt | CstPtrTo elt) ->
+ "\\\\\\[" ^ (analyze_shape_elt elt) ^ "\\\\\\]"
+ | Element_of_dreg -> (analyze_shape_elt Dreg) ^ "\\\\\\[\\[0-9\\]+\\\\\\]"
+ | Element_of_qreg -> (analyze_shape_elt Qreg) ^ "\\\\\\[\\[0-9\\]+\\\\\\]"
+ | All_elements_of_dreg -> (analyze_shape_elt Dreg) ^ "\\\\\\[\\\\\\]"
+ in
+ match shape with
+ All (n, elt) -> commas analyze_shape_elt (n_things n elt) ""
+ | Long -> (analyze_shape_elt Qreg) ^ ", " ^ (analyze_shape_elt Dreg) ^
+ ", " ^ (analyze_shape_elt Dreg)
+ | Long_noreg elt -> (analyze_shape_elt elt) ^ ", " ^ (analyze_shape_elt elt)
+ | Wide -> (analyze_shape_elt Qreg) ^ ", " ^ (analyze_shape_elt Qreg) ^
+ ", " ^ (analyze_shape_elt Dreg)
+ | Wide_noreg elt -> analyze_shape (Long_noreg elt)
+ | Narrow -> (analyze_shape_elt Dreg) ^ ", " ^ (analyze_shape_elt Qreg) ^
+ ", " ^ (analyze_shape_elt Qreg)
+ | Use_operands elts -> commas analyze_shape_elt (Array.to_list elts) ""
+ | By_scalar Dreg ->
+ analyze_shape (Use_operands [| Dreg; Dreg; Element_of_dreg |])
+ | By_scalar Qreg ->
+ analyze_shape (Use_operands [| Qreg; Qreg; Element_of_dreg |])
+ | By_scalar _ -> assert false
+ | Wide_lane ->
+ analyze_shape (Use_operands [| Qreg; Dreg; Element_of_dreg |])
+ | Wide_scalar ->
+ analyze_shape (Use_operands [| Qreg; Dreg; Element_of_dreg |])
+ | Pair_result elt ->
+ let elt_regexp = analyze_shape_elt elt in
+ elt_regexp ^ ", " ^ elt_regexp
+ | Unary_scalar _ -> "FIXME Unary_scalar"
+ | Binary_imm elt -> analyze_shape (Use_operands [| elt; elt; Immed |])
+ | Narrow_imm -> analyze_shape (Use_operands [| Dreg; Qreg; Immed |])
+ | Long_imm -> analyze_shape (Use_operands [| Qreg; Dreg; Immed |])
+
+(* Generate tests for one intrinsic. *)
+let test_intrinsic dir opcode features shape name munge elt_ty =
+ (* Open the test source file. *)
+ let test_name = name ^ (string_of_elt elt_ty) in
+ let chan = open_test_file dir test_name in
+ (* Work out what argument and return types the intrinsic has. *)
+ let c_arity, new_elt_ty = munge shape elt_ty in
+ let c_types = check_types (strings_of_arity c_arity) in
+ (* Extract any constant valuator (a function specifying what constant
+ values are to be written into the intrinsic call) from the features
+ list. *)
+ let const_valuator =
+ try
+ match (List.find (fun feature -> match feature with
+ Const_valuator _ -> true
+ | _ -> false) features) with
+ Const_valuator f -> Some f
+ | _ -> assert false
+ with Not_found -> None
+ in
+ (* Work out what instruction name(s) to expect. *)
+ let insns = get_insn_names features name in
+ let no_suffix = (new_elt_ty = NoElts) in
+ let insns =
+ if no_suffix then insns
+ else List.map (fun insn ->
+ let suffix = string_of_elt_dots new_elt_ty in
+ insn ^ "\\." ^ suffix) insns
+ in
+ (* Construct a regexp to match against the expected instruction name(s). *)
+ let insn_regexp =
+ match insns with
+ [] -> assert false
+ | [insn] -> insn
+ | _ ->
+ let rec calc_regexp insns cur_regexp =
+ match insns with
+ [] -> cur_regexp
+ | [insn] -> cur_regexp ^ "(" ^ insn ^ "))"
+ | insn::insns -> calc_regexp insns (cur_regexp ^ "(" ^ insn ^ ")|")
+ in calc_regexp insns "("
+ in
+ (* Construct regexps to match against the instructions that this
+ intrinsic expands to. Watch out for any writeback character and
+ comments after the instruction. *)
+ let regexps = List.map (fun regexp -> insn_regexp ^ "\\[ \t\\]+" ^ regexp ^
+ "!?\\(\\[ \t\\]+@\\[a-zA-Z0-9 \\]+\\)?\\n")
+ (analyze_all_shapes features shape analyze_shape)
+ in
+ (* Emit file and function prologues. *)
+ emit_prologue chan test_name;
+ (* Emit local variable declarations. *)
+ emit_automatics chan c_types;
+ Printf.fprintf chan "\n";
+ (* Emit the call to the intrinsic. *)
+ emit_call chan const_valuator c_types name elt_ty;
+ (* Emit the function epilogue and the DejaGNU scan-assembler directives. *)
+ emit_epilogue chan features regexps;
+ (* Close the test file. *)
+ close_out chan
+
+(* Generate tests for one element of the "ops" table. *)
+let test_intrinsic_group dir (opcode, features, shape, name, munge, types) =
+ List.iter (test_intrinsic dir opcode features shape name munge) types
+
+(* Program entry point. *)
+let _ =
+ let directory = if Array.length Sys.argv <> 1 then Sys.argv.(1) else "." in
+ List.iter (test_intrinsic_group directory) (reinterp @ ops)
+