nsz Git - libfirm/blob - ir/be/scripts/generate_new_opcodes.pl

   1 #!/usr/bin/perl -w
   2
   3 #
   4 # Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
   5 #
   6 # This file is part of libFirm.
   7 #
   8 # This file may be distributed and/or modified under the terms of the
   9 # GNU General Public License version 2 as published by the Free Software
  10 # Foundation and appearing in the file LICENSE.GPL included in the
  11 # packaging of this file.
  12 #
  13 # Licensees holding valid libFirm Professional Edition licenses may use
  14 # this file in accordance with the libFirm Commercial License.
  15 # Agreement provided with the Software.
  16 #
  17 # This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
  18 # WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19 # PURPOSE.
  20 #
  21
  22 # This script generates the C code which creates the irop's and
  23 # their coresponding node constructors for all operations in a given spec
  24 # so they can be used as normal firm nodes.
  25 # Creation: 2005/10/19
  26 # $Id$
  27
  28 use strict;
  29 use Data::Dumper;
  30
  31 my $specfile   = $ARGV[0];
  32 my $target_dir = $ARGV[1];
  33 my $state      = 1;
  34 my $cur_op     = "";
  35 my $line_nr    = 0;
  36
  37 our $arch;
  38 our $additional_opcodes;
  39 our %nodes;
  40 our %cpu;
  41 our $default_cmp_attr;
  42 our $default_attr_type;
  43
  44 # include spec file
  45
  46 my $return;
  47
  48 no strict "subs";
  49 unless ($return = do $specfile) {
  50         die "couldn't parse $specfile: $@" if $@;
  51         die "couldn't do $specfile: $!"    unless defined $return;
  52         die "couldn't run $specfile"       unless $return;
  53 }
  54 use strict "subs";
  55
  56 my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
  57 my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
  58
  59 if(!defined($default_attr_type)) {
  60         $default_attr_type = "${arch}_attr_t";
  61 }
  62
  63 #print Dumper(%nodes);
  64 #print Dumper(%operands);
  65
  66 # create c code file from specs
  67
  68 my @obst_opvar;       # stack for the "ir_op *op_<arch>_<op-name> = NULL;" statements
  69 my @obst_get_opvar;   # stack for the get_op_<arch>_<op-name>() functions
  70 my @obst_constructor; # stack for node constructor functions
  71 my @obst_new_irop;    # stack for the new_ir_op calls
  72 my @obst_enum_op;     # stack for creating the <arch>_opcode enum
  73 my @obst_header;      # stack for function prototypes
  74 my @obst_is_archirn;  # stack for the is_$arch_irn() function
  75 my @obst_cmp_attr;    # stack for the compare attribute functions
  76 my @obst_proj;        # stack for the pn_ numbers
  77 my $orig_op;
  78 my $arity;
  79 my $cmp_attr_func;
  80 my $temp;
  81 my $n_opcodes = 0;    # number of opcodes
  82
  83 # for registering additional opcodes
  84 $n_opcodes += $additional_opcodes if (defined($additional_opcodes));
  85
  86 push(@obst_header, "void ".$arch."_create_opcodes(void);\n");
  87
  88 # create default compare function
  89 if(defined($default_cmp_attr)) {
  90         my $cmpcode = $default_cmp_attr;
  91         push(@obst_cmp_attr, "static int default_cmp_attr(ir_node *a, ir_node *b) {\n");
  92         if($cmpcode =~ m/attr_a/) {
  93                 push(@obst_cmp_attr, "\t${default_attr_type} *attr_a = get_irn_generic_attr(a);\n");
  94         }
  95         if($cmpcode =~ m/attr_b/) {
  96                 push(@obst_cmp_attr, "\t${default_attr_type} *attr_b = get_irn_generic_attr(b);\n");
  97         }
  98         push(@obst_cmp_attr, "\t${cmpcode}\n");
  99         push(@obst_cmp_attr, "}\n\n");
 100 }
 101
 102 push(@obst_enum_op, "typedef enum _$arch\_opcodes {\n");
 103 foreach my $op (keys(%nodes)) {
 104         my %n        = %{ $nodes{"$op"} };
 105         my $known_mode;
 106         my $n_res    = 0;
 107         my $num_outs = 0;
 108         my @out_flags;
 109
 110         # determine arity from in requirements
 111         $arity = exists($n{"arity"}) ? $n{"arity"} : 0;
 112         if (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
 113                 $arity = scalar(@{ $n{"reg_req"}{"in"} });
 114         }
 115
 116         $orig_op = $op;
 117         $op      = $arch."_".$op;
 118         $temp    = "";
 119
 120         # define some proj numbers
 121         if (exists($n{"outs"})) {
 122                 undef my @outs;
 123
 124                 @outs     = @{ $n{"outs"} };
 125                 $num_outs = $#outs + 1;
 126
 127                 push(@obst_proj, "\nenum pn_$op {\n");
 128
 129                 for (my $idx = 0; $idx <= $#outs; $idx++) {
 130                         # check, if we have additional flags annotated to out
 131                         if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) {
 132                                 push(@out_flags, $1);
 133                                 $outs[$idx] =~ s/:((S|I)(\|(S|I))*)//;
 134                         }
 135                         push(@obst_proj, "\tpn_$op\_".$outs[$idx]." = $idx,\n");
 136                 }
 137
 138                 push(@obst_proj, "};\n");
 139                 # outs have names, it must be a mode_T node
 140                 $known_mode = "mode_T";
 141         }
 142         if (exists($n{"ins"})) {
 143                 undef my @ins;
 144
 145                 @ins = @{ $n{"ins"} };
 146                 my $num_ins = $#ins + 1;
 147
 148                 push(@obst_proj, "\nenum n_$op {\n");
 149
 150                 for (my $idx = 0; $idx <= $#ins; $idx++) {
 151                         push(@obst_proj, "\tn_${op}_".$ins[$idx]." = $idx,\n");
 152                 }
 153
 154                 push(@obst_proj, "};\n");
 155         }
 156         if (exists($n{"mode"})) {
 157                 $known_mode = $n{"mode"};
 158         }
 159
 160         push(@obst_opvar, "ir_op *op_$op = NULL;\n");
 161         push(@obst_get_opvar, "ir_op *get_op_$op(void)         { return op_$op; }\n");
 162         push(@obst_get_opvar, "int    is_$op(const ir_node *n) { return get_$arch\_irn_opcode(n) == iro_$op; }\n\n");
 163
 164         push(@obst_is_archirn, "is_$op(node)");
 165
 166         push(@obst_header, "extern ir_op *op_$op;\n");
 167         push(@obst_header, "ir_op *get_op_$op(void);\n");
 168         push(@obst_header, "int is_$op(const ir_node *n);\n");
 169
 170         my $attr_type= $n{"attr_type"};
 171         if(!defined($attr_type)) {
 172                 $attr_type = $default_attr_type;
 173         }
 174
 175         my $cmp_attr_func;
 176         if(defined($default_cmp_attr)) {
 177                 $cmp_attr_func = "default_cmp_attr";
 178         }
 179         # create compare attribute function if needed
 180         if (exists($n{"cmp_attr"})) {
 181                 my $cmpcode = $n{"cmp_attr"};
 182
 183                 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
 184                 if($cmpcode =~ m/attr_a/) {
 185                         push(@obst_cmp_attr, "\t${attr_type} *attr_a = get_irn_generic_attr(a);\n");
 186                 }
 187                 if($cmpcode =~ m/attr_b/) {
 188                         push(@obst_cmp_attr, "\t${attr_type} *attr_b = get_irn_generic_attr(b);\n");
 189                 }
 190                 push(@obst_cmp_attr, "\t${cmpcode}\n");
 191                 push(@obst_cmp_attr, "}\n\n");
 192
 193                 $cmp_attr_func = "cmp_attr_${op}";
 194         }
 195
 196         if (exists($n{"rd_constructor"}) && $n{"rd_constructor"} =~ /^NONE$/i) {
 197                 # we explicitly skip the constructor if the specification entry says NONE
 198         }
 199         else {
 200                 $n{"comment"} = "construct $op" if(!exists($n{"comment"}));
 201                 $n{"comment"} =~ s/^"|"$//g;    # remove "
 202                 $n{"comment"} = "/* ".$n{"comment"}." */\n";
 203                 push(@obst_constructor, $n{"comment"});
 204
 205                 # create constructor head
 206                 my $complete_args = "";
 207                 my $arg_names     = "";
 208                 $temp             = "";
 209
 210                 $temp = "ir_node *new_rd_$op(dbg_info *db, ir_graph *irg, ir_node *block";
 211                 if (!exists($n{"args"}) || $n{"args"} =~ /^DEFAULT$/i) { # default args
 212                         if ($arity !~ /^\d+$/) {
 213                                 print "DEFAULT args require numeric arity (0, 1, 2, ...)! Ignoring op $orig_op!\n";
 214                                 next;
 215                         }
 216                         for (my $i = 1; $i <= $arity; $i++) {
 217                                 $complete_args .= ", ir_node *op".$i;
 218                                 $arg_names     .= ", op".$i;
 219                         }
 220                         if (!defined($known_mode)) {
 221                                 $complete_args .= ", ir_mode *mode";
 222                                 $arg_names     .= ", mode";
 223                         }
 224                 }
 225                 else { # user defined args
 226                         for my $href (@{ $n{"args"} }) {
 227                                 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
 228                                 $complete_args  .= ", ".$href->{"type"}.$href->{"name"};
 229                                 $arg_names      .= ", ".$href->{"name"};
 230                         }
 231                 }
 232
 233                 # we have additional attribute arguements
 234                 if (exists($n{"attr"})) {
 235                         $complete_args .= ", ".$n{"attr"};
 236                 }
 237
 238                 # $complete_args = substr($complete_args, 2);
 239                 $temp .= "$complete_args)";
 240                 push(@obst_constructor, $temp." {\n");
 241                 push(@obst_header, $n{"comment"});
 242                 push(@obst_header, $temp.";\n");
 243
 244                 # emit constructor code
 245                 if (!exists($n{"rd_constructor"}) || $n{"rd_constructor"} =~ /^DEFAULT$/i) { # default constructor
 246                         if ($arity !~ /^\d+$/) {
 247                                 print "DEFAULT rd_constructor requires numeric arity! Ignoring op $orig_op!\n";
 248                                 next;
 249                         }
 250
 251                         $temp  = "\tir_node *res;\n";
 252                         $temp .= "\tir_node *in[$arity];\n" if ($arity > 0);
 253                         $temp .= "\tint flags = 0;\n";
 254                         $temp .= "\t${attr_type} *attr;\n" if (exists($n{"init_attr"}));
 255
 256                         my $exec_units = "NULL";
 257                         # set up static variables for cpu execution unit assigments
 258                         if (exists($n{"units"})) {
 259                                 $temp .= gen_execunit_list_initializer($n{"units"});
 260                                 $exec_units = "_exec_units";
 261                         }
 262
 263                         undef my $in_req_var;
 264                         undef my $out_req_var;
 265
 266                         # set up static variables for requirements and registers
 267                         if (exists($n{"reg_req"})) {
 268                                 my %req = %{ $n{"reg_req"} };
 269                                 my $idx;
 270
 271                                 undef my @in;
 272                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 273                                 undef my @out;
 274                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 275
 276                                 if (@in) {
 277                                         $in_req_var = "_in_req_$op";
 278                                         $temp .= "\tstatic const arch_register_req_t *".$in_req_var."[] =\n";
 279                                         $temp .= "\t{\n";
 280                                         for ($idx = 0; $idx <= $#in; $idx++) {
 281                                                 $temp .= "\t\t&".$op."_reg_req_in_".$idx.",\n";
 282                                         }
 283                                         $temp .= "\t};\n";
 284                                 }
 285
 286                                 if (@out) {
 287                                         $out_req_var = "_out_req_$op";
 288
 289                                         $temp .= "\tstatic const arch_register_req_t *".$out_req_var."[] =\n";
 290                                         $temp .= "\t{\n";
 291                                         for ($idx = 0; $idx <= $#out; $idx++) {
 292                                                 $temp .= "\t\t&".$op."_reg_req_out_".$idx.",\n";
 293                                         }
 294                                         $temp .= "\t};\n";
 295                                 }
 296                         }
 297
 298                         $temp .= "\n";
 299                         $temp .= "\tassert(op_$op != NULL);\n\n";
 300
 301                         for (my $i = 1; $i <= $arity; $i++) {
 302                                 $temp .= "\tin[".($i - 1)."] = op".$i.";\n";
 303                         }
 304
 305                         # set flags
 306                         if (exists($n{"irn_flags"})) {
 307                                 foreach my $flag (split(/\|/, $n{"irn_flags"})) {
 308                                         if ($flag eq "R") {
 309                                                 $temp .= "\tflags |= arch_irn_flags_rematerializable;   /* op can be easily recalculated */\n";
 310                                         }
 311                                         elsif ($flag eq "N") {
 312                                                 $temp .= "\tflags |= arch_irn_flags_dont_spill;         /* op is NOT spillable */\n";
 313                                         }
 314                                         elsif ($flag eq "I") {
 315                                                 $temp .= "\tflags |= arch_irn_flags_ignore;             /* ignore op for register allocation */\n";
 316                                         }
 317                                         elsif ($flag eq "S") {
 318                                                 $temp .= "\tflags |= arch_irn_flags_modify_sp;          /* op modifies stack pointer */\n";
 319                                         }
 320                                 }
 321                         }
 322
 323                         my $in_param;
 324                         my $out_param;
 325                         # allocate memory and set pointer to register requirements
 326                         if (exists($n{"reg_req"})) {
 327                                 my %req = %{ $n{"reg_req"} };
 328
 329                                 undef my @in;
 330                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 331                                 undef my @out;
 332                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 333
 334                                 if (@in) {
 335                                         $in_param = $in_req_var;
 336                                 }
 337                                 else {
 338                                         $in_param = "NULL";
 339                                 }
 340
 341                                 if (@out) {
 342                                         $n_res     = $#out + 1;
 343                                         $out_param = "$out_req_var, $exec_units, $n_res";
 344                                 }
 345                                 else {
 346                                         $out_param = "NULL, $exec_units, 0";
 347                                 }
 348                         }
 349                         else {
 350                                 $in_param  = "NULL";
 351                                 $out_param = "NULL, $exec_units, 0";
 352                         }
 353                         $temp .= "\n\t/* create node */\n";
 354
 355                         my $latency = 1;
 356                         if (exists($n{"latency"})) {
 357                                 $latency = $n{"latency"};
 358                         }
 359
 360                         my $mode = "mode";
 361                         if (defined($known_mode)) {
 362                                 $mode = $known_mode;
 363                         }
 364                         $temp .= "\tres = new_ir_node(db, irg, block, op_$op, $mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n";
 365
 366                         $temp .= "\n\t/* init node attributes */\n";
 367                         $temp .= "\tinit_$arch\_attributes(res, flags, $in_param, $out_param, $latency);\n";
 368
 369                         # set flags for outs
 370                         if ($#out_flags >= 0) {
 371                                 $temp .= "\n\t/* set flags for outs */\n";
 372                                 for (my $idx = 0; $idx <= $#out_flags; $idx++) {
 373                                         my $flags  = "";
 374                                         my $prefix = "";
 375
 376                                         foreach my $flag (split(/\|/, $out_flags[$idx])) {
 377                                                 if ($flag eq "I") {
 378                                                         $flags .= $prefix."arch_irn_flags_ignore";
 379                                                         $prefix = " | ";
 380                                                 }
 381                                                 elsif ($flag eq "S") {
 382                                                         $flags .= $prefix."arch_irn_flags_modify_sp";
 383                                                         $prefix = " | ";
 384                                                 }
 385                                         }
 386
 387                                         $temp .= "\tset_$arch\_out_flags(res, $flags, $idx);\n";
 388                                 }
 389                         }
 390
 391
 392                         if (exists($n{"init_attr"})) {
 393                                 $temp .= "\tattr = get_$arch\_attr(res);\n";
 394                                 $temp .= $n{"init_attr"}."\n";
 395                         }
 396
 397                         $temp .= "\n\t/* optimize node */\n";
 398                         $temp .= "\tres = optimize_node(res);\n";
 399                         $temp .= "\tirn_vrfy_irg(res, irg);\n\n";
 400
 401                         $temp .= "\n\treturn res;\n";
 402
 403                         push(@obst_constructor, $temp);
 404                 }
 405                 else { # user defined constructor
 406                         push(@obst_constructor, $n{"rd_constructor"});
 407                 }
 408
 409                 # close constructor function
 410                 push(@obst_constructor, "}\n\n");
 411         } # constructor creation
 412
 413         # set default values for state and flags if not given
 414         $n{"state"}    = "floats" if (! exists($n{"state"}));
 415         $n{"op_flags"} = "N"      if (! exists($n{"op_flags"}));
 416
 417
 418         push(@obst_new_irop, "\n\tmemset(&ops, 0, sizeof(ops));\n");
 419         push(@obst_new_irop, "\tops.dump_node     = $arch\_dump_node;\n");
 420
 421         if (defined($cmp_attr_func)) {
 422                 push(@obst_new_irop, "\tops.node_cmp_attr = ${cmp_attr_func};\n");
 423         }
 424
 425         $n_opcodes++;
 426         $temp  = "\top_$op = new_ir_op(cur_opcode + iro_$op, \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
 427         $temp .= "|M, ".translate_arity($arity).", 0, sizeof(${attr_type}) + $n_res * sizeof(arch_register_t *), &ops);\n";
 428         push(@obst_new_irop, $temp);
 429         push(@obst_new_irop, "\tset_op_tag(op_$op, &$arch\_op_tag);\n");
 430         push(@obst_enum_op, "\tiro_$op,\n");
 431
 432         push(@obst_header, "\n");
 433 }
 434 push(@obst_enum_op, "\tiro_$arch\_last_generated,\n");
 435 push(@obst_enum_op, "\tiro_$arch\_last = iro_$arch\_last_generated");
 436 push(@obst_enum_op, " + $additional_opcodes") if (defined($additional_opcodes));
 437 push(@obst_enum_op, "\n} $arch\_opcodes;\n\n");
 438
 439 # emit the code
 440
 441 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
 442
 443 print OUT "#include \"gen_$arch\_regalloc_if_t.h\"\n\n";
 444 print OUT @obst_cmp_attr;
 445 print OUT "\n";
 446 print OUT @obst_opvar;
 447 print OUT "\n";
 448 print OUT @obst_get_opvar;
 449 print OUT "\n";
 450
 451 print OUT<<EOF;
 452
 453 static int $arch\_opcode_start = -1;
 454 static int $arch\_opcode_end   = -1;
 455
 456 EOF
 457
 458 # build the FOURCC arguments from $arch
 459
 460 my ($a, $b, $c, $d) = ('\0', '\0', '\0', '\0');
 461
 462 if (length($arch) >= 1) {
 463         $a = uc(substr($arch, 0, 1));
 464 }
 465
 466 if (length($arch) >= 2) {
 467         $b = uc(substr($arch, 1, 1));
 468 }
 469
 470 if (length($arch) >= 3) {
 471         $c = uc(substr($arch, 2, 1));
 472 }
 473
 474 if (length($arch) >= 4) {
 475         $d = uc(substr($arch, 3, 1));
 476 }
 477
 478 print OUT "static unsigned $arch\_op_tag = FOURCC('$a', '$b', '$c', '$d');\n";
 479
 480 print OUT<<ENDOFISIRN;
 481
 482 /** Return the opcode number of the first $arch opcode. */
 483 int get_$arch\_opcode_first(void) {
 484         return $arch\_opcode_start;
 485 }
 486
 487 /** Return the opcode number of the last $arch opcode + 1. */
 488 int get_$arch\_opcode_last(void) {
 489         return $arch\_opcode_end;
 490 }
 491
 492 /** Return 1 if the given node is a $arch machine node, 0 otherwise */
 493 int is_$arch\_irn(const ir_node *node) {
 494         return get_op_tag(get_irn_op(node)) == &$arch\_op_tag;
 495 }
 496
 497 int get_$arch\_irn_opcode(const ir_node *node) {
 498         if (is_$arch\_irn(node))
 499                 return get_irn_opcode(node) - $arch\_opcode_start;
 500         return -1;
 501 }
 502
 503 ENDOFISIRN
 504
 505 print OUT @obst_constructor;
 506
 507 print OUT<<ENDOFMAIN;
 508 /**
 509  * Creates the $arch specific Firm machine operations
 510  * needed for the assembler irgs.
 511  */
 512 void $arch\_create_opcodes(void) {
 513 #define N   irop_flag_none
 514 #define L   irop_flag_labeled
 515 #define C   irop_flag_commutative
 516 #define X   irop_flag_cfopcode
 517 #define I   irop_flag_ip_cfopcode
 518 #define F   irop_flag_fragile
 519 #define Y   irop_flag_forking
 520 #define H   irop_flag_highlevel
 521 #define c   irop_flag_constlike
 522 #define K   irop_flag_keep
 523 #define M   irop_flag_machine
 524 #define O   irop_flag_machine_op
 525 #define R   (irop_flag_user << 0)
 526
 527         ir_op_ops  ops;
 528         int        cur_opcode;
 529         static int run_once = 0;
 530
 531         if (run_once)
 532                 return;
 533         run_once = 1;
 534
 535         cur_opcode = get_next_ir_opcodes(iro_$arch\_last);
 536
 537         $arch\_opcode_start = cur_opcode;
 538 ENDOFMAIN
 539
 540 print OUT @obst_new_irop;
 541 print OUT "\n";
 542 print OUT "\t$arch\_register_additional_opcodes(cur_opcode);\n" if (defined($additional_opcodes));
 543 print OUT "\t$arch\_opcode_end = cur_opcode + iro_$arch\_last";
 544 print OUT " + $additional_opcodes" if (defined($additional_opcodes));
 545 print OUT ";\n";
 546 print OUT "}\n";
 547
 548 close(OUT);
 549
 550 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
 551
 552 my $creation_time = localtime(time());
 553 my $tmp = uc($arch);
 554
 555 print OUT<<EOF;
 556 /**
 557  * \@file
 558  * \@brief Function prototypes for the new opcode functions.
 559  * \@note  DO NOT EDIT THIS FILE, your changes will be lost.
 560  *        Edit $specfile instead.
 561  *        created by: $0 $specfile $target_dir
 562  * \@date  $creation_time
 563  */
 564 #ifndef FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
 565 #define FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
 566
 567 EOF
 568
 569 print OUT @obst_enum_op;
 570 print OUT "int is_$arch\_irn(const ir_node *node);\n\n";
 571 print OUT "int get_$arch\_opcode_first(void);\n";
 572 print OUT "int get_$arch\_opcode_last(void);\n";
 573 print OUT "int get_$arch\_irn_opcode(const ir_node *node);\n";
 574 print OUT @obst_header;
 575 print OUT @obst_proj;
 576
 577 print OUT <<EOF;
 578 #endif
 579 EOF
 580
 581 close(OUT);
 582
 583 ###
 584 # Translates numeric arity into string constant.
 585 ###
 586 sub translate_arity {
 587         my $arity = shift;
 588
 589         if ($arity =~ /^\d+$/) {
 590                 if    ($arity == 0) {
 591                         return "oparity_zero";
 592                 }
 593                 elsif ($arity == 1) {
 594                         return "oparity_unary";
 595                 }
 596                 elsif ($arity == 2) {
 597                         return "oparity_binary";
 598                 }
 599                 elsif ($arity == 3) {
 600                         return "oparity_trinary";
 601                 }
 602                 else {
 603                         return "oparity_any";
 604                 }
 605         }
 606         else {
 607                 return "oparity_".$arity;
 608         }
 609 }
 610
 611 ###
 612 # Return the list of pointers for the given execution units.
 613 ###
 614 sub gen_execunit_list_initializer {
 615         my $units   = shift;
 616         my $uc_arch = uc($arch);
 617         my $ret     = "";
 618         my $ret2    = "";
 619         my %init;
 620
 621         foreach my $unit (@{ $units }) {
 622                 if ($unit eq "DUMMY") {
 623                         push(@{ $init{"DUMMY"} }, "\t\t&be_machine_execution_units_DUMMY[0]");
 624                 }
 625                 elsif (exists($cpu{"$unit"})) {
 626                         # operation can be executed on all units of this type
 627                         # -> add them all
 628                         my $tp_name = "$arch\_execution_units_$unit";
 629                         my $idx     = 0;
 630                         foreach (@{ $cpu{"$unit"} }) {
 631                                 next if ($idx++ == 0);  # skip first element (it's not a unit)
 632                                 my $unit_name = "$uc_arch\_EXECUNIT_TP_$unit\_$_";
 633                                 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
 634                         }
 635                 }
 636                 else {
 637                         # operation can be executed only a certain unit
 638                         # -> find corresponding unit type
 639                         my $found = 0;
 640 TP_SEARCH:      foreach my $cur_type (keys(%cpu)) {
 641                                 foreach my $cur_unit (@{ $cpu{"$cur_type"} }) {
 642                                         if ($unit eq $cur_unit) {
 643                                                 my $tp_name   = "$arch\_execution_units_$cur_type";
 644                                                 my $unit_name = "$uc_arch\_EXECUNIT_TP_$cur_type\_$unit";
 645                                                 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
 646                                                 $found = 1;
 647                                                 last TP_SEARCH;
 648                                         }
 649                                 }
 650                         }
 651
 652                         if (! $found) {
 653                                 print STDERR "Invalid execution unit $unit specified!\n";
 654                         }
 655                 }
 656         }
 657
 658         # prepare the 2-dim array init
 659         foreach my $key (keys(%init)) {
 660                 $ret .= "\tstatic const be_execution_unit_t *_allowed_units_".$key."[] =\n";
 661                 $ret .= "\t{\n";
 662                 foreach (@{ $init{"$key"} }) {
 663                         $ret .= "$_,\n";
 664                 }
 665                 $ret .= "\t\tNULL\n";
 666                 $ret .= "\t};\n";
 667                 $ret2 .= "\t\t_allowed_units_$key,\n";
 668         }
 669         $ret2 .= "\t\tNULL\n";
 670
 671         $ret .= "\tstatic const be_execution_unit_t **_exec_units[] =\n";
 672         $ret .= "\t{\n";
 673         $ret .= $ret2;
 674         $ret .= "\t};\n";
 675
 676         return $ret;
 677 }