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

   1 #!/usr/bin/perl -w
   2
   3 # This script generates the C code which creates the irop's and
   4 # their coresponding node constructors for all operations in a given spec
   5 # so they can be used as normal firm nodes.
   6 # Creation: 2005/10/19
   7 # $Id$
   8
   9 use strict;
  10 use Data::Dumper;
  11
  12 my $specfile   = $ARGV[0];
  13 my $target_dir = $ARGV[1];
  14 my $state      = 1;
  15 my $cur_op     = "";
  16 my $line_nr    = 0;
  17
  18 our $arch;
  19 our $additional_opcodes;
  20 our %nodes;
  21 our %cpu;
  22
  23 # include spec file
  24
  25 my $return;
  26
  27 no strict "subs";
  28 unless ($return = do $specfile) {
  29         warn "couldn't parse $specfile: $@" if $@;
  30         warn "couldn't do $specfile: $!"    unless defined $return;
  31         warn "couldn't run $specfile"       unless $return;
  32 }
  33 use strict "subs";
  34
  35 my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
  36 my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
  37
  38 #print Dumper(%nodes);
  39 #print Dumper(%operands);
  40
  41 # create c code file from specs
  42
  43 my @obst_opvar;       # stack for the "ir_op *op_<arch>_<op-name> = NULL;" statements
  44 my @obst_get_opvar;   # stack for the get_op_<arch>_<op-name>() functions
  45 my @obst_constructor; # stack for node constructor functions
  46 my @obst_new_irop;    # stack for the new_ir_op calls
  47 my @obst_enum_op;     # stack for creating the <arch>_opcode enum
  48 my @obst_header;      # stack for function prototypes
  49 my @obst_is_archirn;  # stack for the is_$arch_irn() function
  50 my @obst_cmp_attr;    # stack for the compare attribute functions
  51 my @obst_proj;        # stack for the pn_ numbers
  52 my $orig_op;
  53 my $arity;
  54 my $cmp_attr_func;
  55 my $temp;
  56 my $n_opcodes = 0;    # number of opcodes
  57
  58 # for registering additional opcodes
  59 $n_opcodes += $additional_opcodes if (defined($additional_opcodes));
  60
  61 push(@obst_header, "void ".$arch."_create_opcodes(void);\n");
  62
  63 push(@obst_enum_op, "typedef enum _$arch\_opcodes {\n");
  64 foreach my $op (keys(%nodes)) {
  65         my %n        = %{ $nodes{"$op"} };
  66         my $tuple    = 0;
  67         my $n_res    = 0;
  68         my $num_outs = 0;
  69         my @out_flags;
  70
  71         # determine arity from in requirements
  72         $arity = exists($n{"arity"}) ? $n{"arity"} : 0;
  73         if (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
  74                 $arity = scalar(@{ $n{"reg_req"}{"in"} });
  75         }
  76
  77         $orig_op = $op;
  78         $op      = $arch."_".$op;
  79         $temp    = "";
  80
  81         # define some proj numbers
  82         if (exists($n{"outs"})) {
  83                 undef my @outs;
  84
  85                 @outs     = @{ $n{"outs"} };
  86                 $num_outs = $#outs + 1;
  87
  88                 push(@obst_proj, "\nenum pn_$op {\n");
  89
  90                 for (my $idx = 0; $idx <= $#outs; $idx++) {
  91                         # check, if we have additional flags annotated to out
  92                         if ($outs[$idx] =~ /:(S|I(\|(S|I))*)/) {
  93                                 push(@out_flags, $1);
  94                                 $outs[$idx] =~ s/:(S|I(\|(S|I))*)//;
  95                         }
  96                         push(@obst_proj, "  pn_$op\_".$outs[$idx]." = $idx,\n");
  97                 }
  98
  99                 push(@obst_proj, "};\n");
 100                 $tuple = 1;
 101         }
 102
 103         push(@obst_opvar, "ir_op *op_$op = NULL;\n");
 104         push(@obst_get_opvar, "ir_op *get_op_$op(void)         { return op_$op; }\n");
 105         push(@obst_get_opvar, "int    is_$op(const ir_node *n) { return get_$arch\_irn_opcode(n) == iro_$op; }\n\n");
 106
 107         push(@obst_is_archirn, "is_$op(node)");
 108
 109         push(@obst_header, "extern ir_op *op_$op;\n");
 110         push(@obst_header, "ir_op *get_op_$op(void);\n");
 111         push(@obst_header, "int is_$op(const ir_node *n);\n");
 112
 113         $cmp_attr_func = 0;
 114         # create compare attribute function if needed
 115         if (exists($n{"cmp_attr"})) {
 116                 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
 117                 push(@obst_cmp_attr, "  $arch\_attr_t *attr_a = get_$arch\_attr(a);\n");
 118                 push(@obst_cmp_attr, "  $arch\_attr_t *attr_b = get_$arch\_attr(b);\n");
 119                 push(@obst_cmp_attr, "  (void) attr_a;\n");
 120                 push(@obst_cmp_attr, "  (void) attr_b;\n");
 121                 push(@obst_cmp_attr, $n{"cmp_attr"});
 122                 push(@obst_cmp_attr, "}\n\n");
 123
 124                 $cmp_attr_func = 1;
 125         }
 126
 127         if (exists($n{"rd_constructor"}) && $n{"rd_constructor"} =~ /^NONE$/i) {
 128                 # we explicitly skip the constructor if the specification entry says NONE
 129         }
 130         else {
 131                 $n{"comment"} = "construct $op" if(!exists($n{"comment"}));
 132                 $n{"comment"} =~ s/^"|"$//g;    # remove "
 133                 $n{"comment"} = "/* ".$n{"comment"}." */\n";
 134                 push(@obst_constructor, $n{"comment"});
 135
 136                 # create constructor head
 137                 my $complete_args = "";
 138                 my $arg_names     = "";
 139                 $temp             = "";
 140
 141                 $temp = "ir_node *new_rd_$op(dbg_info *db, ir_graph *irg, ir_node *block";
 142                 if (!exists($n{"args"}) || $n{"args"} =~ /^DEFAULT$/i) { # default args
 143                         if ($arity !~ /^\d+$/) {
 144                                 print "DEFAULT args require numeric arity (0, 1, 2, ...)! Ignoring op $orig_op!\n";
 145                                 next;
 146                         }
 147                         for (my $i = 1; $i <= $arity; $i++) {
 148                                 $complete_args .= ", ir_node *op".$i;
 149                                 $arg_names     .= ", op".$i;
 150                         }
 151                         if ($tuple == 0) {
 152                                 $complete_args .= ", ir_mode *mode";
 153                                 $arg_names     .= ", mode";
 154                         }
 155                 }
 156                 else { # user defined args
 157                         for my $href (@{ $n{"args"} }) {
 158                                 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
 159                                 $complete_args  .= ", ".$href->{"type"}.$href->{"name"};
 160                                 $arg_names      .= ", ".$href->{"name"};
 161                         }
 162                 }
 163
 164                 # we have additional attribute arguements
 165                 if (exists($n{"attr"})) {
 166                         $complete_args .= ", ".$n{"attr"};
 167                 }
 168
 169                 # $complete_args = substr($complete_args, 2);
 170                 $temp .= "$complete_args)";
 171                 push(@obst_constructor, $temp." {\n");
 172                 push(@obst_header, $n{"comment"});
 173                 push(@obst_header, $temp.";\n");
 174
 175                 # emit constructor code
 176                 if (!exists($n{"rd_constructor"}) || $n{"rd_constructor"} =~ /^DEFAULT$/i) { # default constructor
 177                         if ($arity !~ /^\d+$/) {
 178                                 print "DEFAULT rd_constructor requires numeric arity! Ignoring op $orig_op!\n";
 179                                 next;
 180                         }
 181
 182                         $temp  = "  ir_node *res;\n";
 183                         $temp .= "  ir_node *in[$arity];\n" if ($arity > 0);
 184                         $temp .= "  int flags = 0;\n";
 185                         $temp .= "  $arch\_attr_t *attr;\n" if (exists($n{"init_attr"}));
 186
 187                         my $exec_units = "NULL";
 188                         # set up static variables for cpu execution unit assigments
 189                         if (exists($n{"units"})) {
 190                                 $temp .= "  static const be_execution_unit_t *_exec_units[] =\n  {\n";
 191                                 $temp .= get_execunit_list($n{"units"});
 192                                 $temp .= "  };\n";
 193                                 $exec_units = "_exec_units";
 194                         }
 195
 196                         undef my $in_req_var;
 197                         undef my $out_req_var;
 198
 199                         # set up static variables for requirements and registers
 200                         if (exists($n{"reg_req"})) {
 201                                 my %req = %{ $n{"reg_req"} };
 202                                 my $idx;
 203
 204                                 undef my @in;
 205                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 206                                 undef my @out;
 207                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 208
 209                                 if (@in) {
 210                                         $in_req_var = "_in_req_$op";
 211                                         $temp .= "  static const $arch\_register_req_t *".$in_req_var."[] =\n  {\n";
 212                                         for ($idx = 0; $idx <= $#in; $idx++) {
 213                                                 $temp .= "    ".$op."_reg_req_in_".$idx.",\n";
 214                                         }
 215                                         $temp .= "  };\n";
 216                                 }
 217
 218                                 if (@out) {
 219                                         $out_req_var = "_out_req_$op";
 220
 221                                         $temp .= "  static const $arch\_register_req_t *".$out_req_var."[] =\n  {\n";
 222                                         for ($idx = 0; $idx <= $#out; $idx++) {
 223                                                 $temp .= "    ".$op."_reg_req_out_".$idx.",\n";
 224                                         }
 225                                         $temp .= "  };\n";
 226                                 }
 227                         }
 228
 229                         $temp .= "\n";
 230                         $temp .= "  if (!op_$op) {\n";
 231                         $temp .= "    assert(0);\n";
 232                         $temp .= "    return NULL;\n";
 233                         $temp .= "  }\n\n";
 234                         for (my $i = 1; $i <= $arity; $i++) {
 235                                 $temp .= "  in[".($i - 1)."] = op".$i.";\n";
 236                         }
 237
 238                         # set flags
 239                         if (exists($n{"irn_flags"})) {
 240                                 foreach my $flag (split(/\|/, $n{"irn_flags"})) {
 241                                         if ($flag eq "R") {
 242                                                 $temp .= "  flags |= arch_irn_flags_rematerializable;   /* op can be easily recalculated */\n";
 243                                         }
 244                                         elsif ($flag eq "N") {
 245                                                 $temp .= "  flags |= arch_irn_flags_dont_spill;         /* op is NOT spillable */\n";
 246                                         }
 247                                         elsif ($flag eq "I") {
 248                                                 $temp .= "  flags |= arch_irn_flags_ignore;             /* ignore op for register allocation */\n";
 249                                         }
 250                                         elsif ($flag eq "S") {
 251                                                 $temp .= "  flags |= arch_irn_flags_modify_sp;          /* op modifies stack pointer */\n";
 252                                         }
 253                                 }
 254                         }
 255
 256                         my $in_param;
 257                         my $out_param;
 258                         # allocate memory and set pointer to register requirements
 259                         if (exists($n{"reg_req"})) {
 260                                 my %req = %{ $n{"reg_req"} };
 261
 262                                 undef my @in;
 263                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 264                                 undef my @out;
 265                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 266
 267                                 if (@in) {
 268                                         $in_param = $in_req_var;
 269                                 }
 270                                 else {
 271                                         $in_param = "NULL";
 272                                 }
 273
 274                                 if (@out) {
 275                                         $n_res     = $#out + 1;
 276                                         $out_param = "$out_req_var, $exec_units, $n_res";
 277                                 }
 278                                 else {
 279                                         $out_param = "NULL, $exec_units, 0";
 280                                 }
 281                         }
 282                         else {
 283                                 $in_param  = "NULL";
 284                                 $out_param = "NULL, $exec_units, 0";
 285                         }
 286                         $temp .= "\n  /* create node */\n";
 287
 288                         my $latency = 1;
 289                         if (exists($n{"latency"})) {
 290                                 $latency = $n{"latency"};
 291                         }
 292
 293                         my $mode = "mode";
 294                         if ($tuple == 1) {
 295                                 $mode = "mode_T";
 296                         }
 297                         $temp .= "  res = new_ir_node(db, irg, block, op_$op, $mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n";
 298
 299                         $temp .= "\n  /* init node attributes */\n";
 300                         $temp .= "  init_$arch\_attributes(res, flags, $in_param, $out_param, $latency);\n";
 301
 302                         # set flags for outs
 303                         if ($#out_flags >= 0) {
 304                                 $temp .= "\n  /* set flags for outs */\n";
 305                                 for (my $idx = 0; $idx <= $#out_flags; $idx++) {
 306                                         my $flags  = "";
 307                                         my $prefix = "";
 308
 309                                         foreach my $flag (split(/\|/, $out_flags[$idx])) {
 310                                                 if ($flag eq "I") {
 311                                                         $flags .= $prefix."arch_irn_flags_ignore";
 312                                                         $prefix = " | ";
 313                                                 }
 314                                                 elsif ($flag eq "S") {
 315                                                         $flags .= $prefix."arch_irn_flags_modify_sp";
 316                                                         $prefix = " | ";
 317                                                 }
 318                                         }
 319
 320                                         $temp .= "  set_$arch\_out_flags(res, $flags, $idx);\n";
 321                                 }
 322                         }
 323
 324
 325                         if (exists($n{"init_attr"})) {
 326                                 $temp .= "  attr = get_$arch\_attr(res);\n";
 327                                 $temp .= $n{"init_attr"}."\n";
 328                         }
 329
 330                         $temp .= "\n  /* optimize node */\n";
 331                         $temp .= "  res = optimize_node(res);\n";
 332                         $temp .= "  irn_vrfy_irg(res, irg);\n\n";
 333
 334                         $temp .= "\n  return res;\n";
 335
 336                         push(@obst_constructor, $temp);
 337                 }
 338                 else { # user defined constructor
 339                         push(@obst_constructor, $n{"rd_constructor"});
 340                 }
 341
 342                 # close constructor function
 343                 push(@obst_constructor, "}\n\n");
 344         } # constructor creation
 345
 346         # set default values for state and flags if not given
 347         $n{"state"}    = "floats" if (! exists($n{"state"}));
 348         $n{"op_flags"} = "N"      if (! exists($n{"op_flags"}));
 349
 350
 351         push(@obst_new_irop, "\n  memset(&ops, 0, sizeof(ops));\n");
 352         push(@obst_new_irop, "  ops.dump_node     = $arch\_dump_node;\n");
 353
 354         if ($cmp_attr_func) {
 355                 push(@obst_new_irop, "  ops.node_cmp_attr = cmp_attr_$op;\n");
 356         }
 357
 358         $n_opcodes++;
 359         $temp  = "  op_$op = new_ir_op(cur_opcode + iro_$op, \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
 360         $temp .= "|M, ".translate_arity($arity).", 0, sizeof($arch\_attr_t) + $n_res * sizeof(arch_register_t *), &ops);\n";
 361         push(@obst_new_irop, $temp);
 362         push(@obst_new_irop, "  set_op_tag(op_$op, &$arch\_op_tag);\n");
 363         push(@obst_enum_op, "  iro_$op,\n");
 364
 365         push(@obst_header, "\n");
 366 }
 367 push(@obst_enum_op, "  iro_$arch\_last_generated,\n");
 368 push(@obst_enum_op, "  iro_$arch\_last = iro_$arch\_last_generated");
 369 push(@obst_enum_op, " + $additional_opcodes") if (defined($additional_opcodes));
 370 push(@obst_enum_op, "\n} $arch\_opcodes;\n\n");
 371
 372 # emit the code
 373
 374 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
 375
 376 print OUT "#include \"gen_$arch\_regalloc_if_t.h\"\n\n";
 377 print OUT @obst_cmp_attr;
 378 print OUT "\n";
 379 print OUT @obst_opvar;
 380 print OUT "\n";
 381 print OUT @obst_get_opvar;
 382 print OUT "\n";
 383
 384 print OUT<<EOF;
 385
 386 static int $arch\_opcode_start = -1;
 387 static int $arch\_opcode_end   = -1;
 388
 389 EOF
 390
 391 # build the FOURCC arguments from $arch
 392
 393 my ($a, $b, $c, $d) = ('\0', '\0', '\0', '\0');
 394
 395 if (length($arch) >= 1) {
 396         $a = uc(substr($arch, 0, 1));
 397 }
 398
 399 if (length($arch) >= 2) {
 400         $b = uc(substr($arch, 1, 1));
 401 }
 402
 403 if (length($arch) >= 3) {
 404         $c = uc(substr($arch, 2, 1));
 405 }
 406
 407 if (length($arch) >= 4) {
 408         $d = uc(substr($arch, 3, 1));
 409 }
 410
 411 print OUT "static unsigned $arch\_op_tag = FOURCC('$a', '$b', '$c', '$d');\n";
 412
 413 print OUT<<ENDOFISIRN;
 414
 415 /** Return the opcode number of the first $arch opcode. */
 416 int get_$arch\_opcode_first(void) {
 417   return $arch\_opcode_start;
 418 }
 419
 420 /** Return the opcode number of the last $arch opcode + 1. */
 421 int get_$arch\_opcode_last(void) {
 422   return $arch\_opcode_end;
 423 }
 424
 425 /** Return 1 if the given node is a $arch machine node, 0 otherwise */
 426 int is_$arch\_irn(const ir_node *node) {
 427   return get_op_tag(get_irn_op(node)) == &$arch\_op_tag;
 428 }
 429
 430 int get_$arch\_irn_opcode(const ir_node *node) {
 431   if (is_$arch\_irn(node))
 432         return get_irn_opcode(node) - $arch\_opcode_start;
 433   return -1;
 434 }
 435
 436 ENDOFISIRN
 437
 438 print OUT @obst_constructor;
 439
 440 print OUT<<ENDOFMAIN;
 441 /**
 442  * Creates the $arch specific Firm machine operations
 443  * needed for the assembler irgs.
 444  */
 445 void $arch\_create_opcodes(void) {
 446 #define N   irop_flag_none
 447 #define L   irop_flag_labeled
 448 #define C   irop_flag_commutative
 449 #define X   irop_flag_cfopcode
 450 #define I   irop_flag_ip_cfopcode
 451 #define F   irop_flag_fragile
 452 #define Y   irop_flag_forking
 453 #define H   irop_flag_highlevel
 454 #define c   irop_flag_constlike
 455 #define K   irop_flag_keep
 456 #define M   irop_flag_machine
 457 #define O   irop_flag_machine_op
 458 #define R   (irop_flag_user << 0)
 459
 460   ir_op_ops ops;
 461   int cur_opcode = get_next_ir_opcodes(iro_$arch\_last);
 462
 463   $arch\_opcode_start = cur_opcode;
 464 ENDOFMAIN
 465
 466 print OUT @obst_new_irop;
 467 print OUT "\n";
 468 print OUT "  $arch\_register_additional_opcodes(cur_opcode);\n" if (defined($additional_opcodes));
 469 print OUT "  $arch\_opcode_end = cur_opcode + iro_$arch\_last";
 470 print OUT " + $additional_opcodes" if (defined($additional_opcodes));
 471 print OUT ";\n";
 472 print OUT "}\n";
 473
 474 close(OUT);
 475
 476 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
 477
 478 print OUT "#ifndef __GEN_$arch\_NEW_NODES_H__\n";
 479 print OUT "#define __GEN_$arch\_NEW_NODES_H__\n\n";
 480 print OUT @obst_enum_op;
 481 print OUT "int is_$arch\_irn(const ir_node *node);\n\n";
 482 print OUT "int get_$arch\_opcode_first(void);\n";
 483 print OUT "int get_$arch\_opcode_last(void);\n";
 484 print OUT "int get_$arch\_irn_opcode(const ir_node *node);\n";
 485 print OUT @obst_header;
 486 print OUT @obst_proj;
 487 print OUT "\n#endif /* __GEN_$arch\_NEW_NODES_H__ */\n";
 488
 489 close(OUT);
 490
 491 ###
 492 # Translates numeric arity into string constant.
 493 ###
 494 sub translate_arity {
 495         my $arity = shift;
 496
 497         if ($arity =~ /^\d+$/) {
 498                 if    ($arity == 0) {
 499                         return "oparity_zero";
 500                 }
 501                 elsif ($arity == 1) {
 502                         return "oparity_unary";
 503                 }
 504                 elsif ($arity == 2) {
 505                         return "oparity_binary";
 506                 }
 507                 elsif ($arity == 3) {
 508                         return "oparity_trinary";
 509                 }
 510                 else {
 511                         return "$arity";
 512                 }
 513         }
 514         else {
 515                 return "oparity_".$arity;
 516         }
 517 }
 518
 519 ###
 520 # Return the list of pointers for the given execution units.
 521 ###
 522 sub get_execunit_list {
 523         my $units   = shift;
 524         my $uc_arch = uc($arch);
 525         my $ret     = "";
 526
 527         foreach my $unit (@{ $units }) {
 528                 if (exists($cpu{"$unit"})) {
 529                         # operation can be executed on all units of this type
 530                         # -> add them all
 531                         my $tp_name = "$arch\_execution_units_$unit";
 532                         foreach (@{ $cpu{"$unit"} }) {
 533                                 my $unit_name = "$uc_arch\_EXECUNIT_TP_$unit\_$_";
 534                                 $ret .= "    &".$tp_name."[".$unit_name."],\n";
 535                         }
 536                 }
 537                 else {
 538                         # operation can be executed only a certain unit
 539                         # -> find corresponding unit type
 540                         my $found = 0;
 541 TP_SEARCH:      foreach my $cur_type (keys(%cpu)) {
 542                                 foreach my $cur_unit (@{ $cpu{"$cur_type"} }) {
 543                                         if ($unit eq $cur_unit) {
 544                                                 my $tp_name   = "$arch\_execution_units_$cur_type";
 545                                                 my $unit_name = "$uc_arch\_EXECUNIT_TP_$cur_type\_$unit";
 546                                                 $ret    .= "    &".$tp_name."[".$unit_name."],\n";
 547                                                 $found   = 1;
 548                                                 last TP_SEARCH;
 549                                         }
 550                                 }
 551                         }
 552
 553                         if (! $found) {
 554                                 print STDERR "Invalid execution unit $unit specified!\n";
 555                         }
 556                 }
 557         }
 558
 559         $ret .= "    NULL\n";
 560
 561         return $ret;
 562 }