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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)
-