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