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
  22 # include spec file
  23
  24 my $return;
  25
  26 no strict "subs";
  27 unless ($return = do $specfile) {
  28         warn "couldn't parse $specfile: $@" if $@;
  29         warn "couldn't do $specfile: $!"    unless defined $return;
  30         warn "couldn't run $specfile"       unless $return;
  31 }
  32 use strict "subs";
  33
  34 my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
  35 my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
  36
  37 #print Dumper(%nodes);
  38
  39 # create c code file from specs
  40
  41 my @obst_opvar;       # stack for the "ir_op *op_<arch>_<op-name> = NULL;" statements
  42 my @obst_get_opvar;   # stack for the get_op_<arch>_<op-name>() functions
  43 my @obst_constructor; # stack for node constructor functions
  44 my @obst_new_irop;    # stack for the new_ir_op calls
  45 my @obst_header;      # stack for function prototypes
  46 my @obst_is_archirn;  # stack for the is_$arch_irn() function
  47 my @obst_cmp_attr;    # stack for the compare attribute functions
  48 my $orig_op;
  49 my $arity;
  50 my $cmp_attr_func;
  51 my $temp;
  52 my $n_opcodes = 2;    # we have two additional border opcodes (lowest/highest)
  53
  54 # for registering additional opcodes
  55 $n_opcodes += $additional_opcodes if (defined($additional_opcodes));
  56
  57 push(@obst_header, "void ".$arch."_create_opcodes(void);\n");
  58
  59 foreach my $op (keys(%nodes)) {
  60         my %n = %{ $nodes{"$op"} };
  61
  62         # determine arity from in requirements
  63         $arity = 0;
  64         if (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
  65                 $arity = scalar(@{ $n{"reg_req"}{"in"} });
  66         }
  67
  68         $orig_op = $op;
  69         $op      = $arch."_".$op;
  70         $temp    = "";
  71
  72         push(@obst_opvar, "ir_op *op_$op = NULL;\n");
  73         push(@obst_get_opvar, "ir_op *get_op_$op(void)         { return op_$op; }\n");
  74         push(@obst_get_opvar, "int    is_$op(const ir_node *n) { return get_irn_op(n) == op_$op; }\n\n");
  75
  76         push(@obst_is_archirn, "is_$op(node)");
  77
  78         push(@obst_header, "extern ir_op *op_$op;\n");
  79         push(@obst_header, "ir_op *get_op_$op(void);\n");
  80         push(@obst_header, "int is_$op(const ir_node *n);\n");
  81
  82         $cmp_attr_func = 0;
  83         # create compare attribute function if needed
  84         if (exists($n{"cmp_attr"})) {
  85                 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
  86                 push(@obst_cmp_attr, "  $arch\_attr_t *attr_a = get_$arch\_attr(a);\n");
  87                 push(@obst_cmp_attr, "  $arch\_attr_t *attr_b = get_$arch\_attr(b);\n");
  88                 push(@obst_cmp_attr, $n{"cmp_attr"});
  89                 push(@obst_cmp_attr, "}\n\n");
  90
  91                 $cmp_attr_func = 1;
  92         }
  93
  94         if (exists($n{"rd_constructor"}) && $n{"rd_constructor"} =~ /^NONE$/i) {
  95                 # we explicitly skip the constructor if the specification entry says NONE
  96         }
  97         else {
  98                 $n{"comment"} = "construct $op" if(!exists($n{"comment"}));
  99                 $n{"comment"} =~ s/^"|"$//g;    # remove "
 100                 $n{"comment"} = "/* ".$n{"comment"}." */\n";
 101                 push(@obst_constructor, $n{"comment"});
 102
 103                 # create constructor head
 104                 my $complete_args = "";
 105                 my $arg_names     = "";
 106                 $temp             = "";
 107
 108                 $temp = "ir_node *new_rd_$op(dbg_info *db, ir_graph *irg, ir_node *block";
 109                 if (!exists($n{"args"}) || $n{"args"} =~ /^DEFAULT$/i) { # default args
 110                         if ($arity !~ /^\d+$/) {
 111                                 print "DEFAULT args require numeric arity (0, 1, 2, ...)! Ignoring op $orig_op!\n";
 112                                 next;
 113                         }
 114                         for (my $i = 1; $i <= $arity; $i++) {
 115                                 $complete_args .= ", ir_node *op".$i;
 116                                 $arg_names     .= ", op".$i;
 117                         }
 118                         $complete_args .= ", ir_mode *mode";
 119                         $arg_names     .= ", mode";
 120                 }
 121                 else { # user defined args
 122                         for my $href (@{ $n{"args"} }) {
 123                                 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
 124                                 $complete_args  .= ", ".$href->{"type"}.$href->{"name"};
 125                                 $arg_names      .= ", ".$href->{"name"};
 126                         }
 127                 }
 128                 $complete_args = substr($complete_args, 2);
 129                 $temp .= ", $complete_args)";
 130                 push(@obst_constructor, $temp." {\n");
 131                 push(@obst_header, $temp.";\n");
 132
 133                 # emit constructor code
 134                 if (!exists($n{"rd_constructor"}) || $n{"rd_constructor"} =~ /^DEFAULT$/i) { # default constructor
 135                         if ($arity !~ /^\d+$/) {
 136                                 print "DEFAULT rd_constructor requires numeric arity! Ignoring op $orig_op!\n";
 137                                 next;
 138                         }
 139
 140                         $temp  = "  ir_node *res;\n";
 141                         $temp .= "  ir_node *in[$arity];\n" if ($arity > 0);
 142                         $temp .= "  int flags = 0;\n";
 143
 144                         undef my $in_req_var;
 145                         undef my $out_req_var;
 146
 147                         # set up static variables for requirements and registers
 148                         if (exists($n{"reg_req"})) {
 149                                 my %req = %{ $n{"reg_req"} };
 150                                 my $idx;
 151
 152                                 undef my @in;
 153                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 154                                 undef my @out;
 155                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 156
 157                                 if (@in) {
 158                                         $in_req_var = "_in_req_$op";
 159                                         $temp .= "  static const $arch\_register_req_t *".$in_req_var."[] =\n  {\n";
 160                                         for ($idx = 0; $idx <= $#in; $idx++) {
 161                                                 $temp .= "    ".$op."_reg_req_in_".$idx.",\n";
 162                                         }
 163                                         $temp .= "  };\n";
 164                                 }
 165
 166                                 if (@out) {
 167                                         $out_req_var = "_out_req_$op";
 168
 169                                         $temp .= "  static const $arch\_register_req_t *".$out_req_var."[] =\n  {\n";
 170                                         for ($idx = 0; $idx <= $#out; $idx++) {
 171                                                 $temp .= "    ".$op."_reg_req_out_".$idx.",\n";
 172                                         }
 173                                         $temp .= "  };\n";
 174                                 }
 175                         }
 176
 177                         $temp .= "\n";
 178                         $temp .= "  if (!op_$op) {\n";
 179                         $temp .= "    assert(0);\n";
 180                         $temp .= "    return NULL;\n";
 181                         $temp .= "  }\n\n";
 182                         for (my $i = 1; $i <= $arity; $i++) {
 183                                 $temp .= "  in[".($i - 1)."] = op".$i.";\n";
 184                         }
 185                         $temp .= "  res = new_ir_node(db, irg, block, op_$op, mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n";
 186                         $temp .= "  res = optimize_node(res);\n";
 187                         $temp .= "  irn_vrfy_irg(res, irg);\n\n";
 188
 189                         # set flags
 190                         if (exists($n{"irn_flags"})) {
 191                                 foreach my $flag (split(/\|/, $n{"irn_flags"})) {
 192                                         if ($flag eq "R") {
 193                                                 $temp .= "  flags |= arch_irn_flags_rematerializable;   /* op can be easily recalulated */\n";
 194                                         }
 195                                         elsif ($flag eq "N") {
 196                                                 $temp .= "  flags |= arch_irn_flags_dont_spill;         /* op is NOT spillable */\n";
 197                                         }
 198                                         elsif ($flag eq "I") {
 199                                                 $temp .= "  flags |= arch_irn_flags_ignore;             /* ignore op for register allocation */\n";
 200                                         }
 201                                 }
 202                         }
 203
 204                         my $in_param;
 205                         my $out_param;
 206                         # allocate memory and set pointer to register requirements
 207                         if (exists($n{"reg_req"})) {
 208                                 my %req = %{ $n{"reg_req"} };
 209
 210                                 undef my @in;
 211                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 212                                 undef my @out;
 213                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 214
 215                                 if (@in) {
 216                                         $in_param = $in_req_var;
 217                                 }
 218                                 else {
 219                                         $in_param = "NULL";
 220                                 }
 221
 222                                 if (@out) {
 223                                         $out_param = $out_req_var.", ".($#out + 1);
 224                                 }
 225                                 else {
 226                                         $out_param = "NULL, 0";
 227                                 }
 228                         }
 229                         $temp .= "\n  /* init node attributes */\n";
 230                         $temp .= "  init_$arch\_attributes(res, flags, $in_param, $out_param);\n";
 231
 232                         $temp .= "\n  return res;\n";
 233
 234                         push(@obst_constructor, $temp);
 235                 }
 236                 else { # user defined constructor
 237                         push(@obst_constructor, $n{"rd_constructor"});
 238                 }
 239
 240                 # close constructor function
 241                 push(@obst_constructor, "}\n\n");
 242
 243         } # constructor creation
 244
 245         # set default values for state and flags if not given
 246         $n{"state"}    = "floats" if (! exists($n{"state"}));
 247         $n{"op_flags"} = "N"      if (! exists($n{"op_flags"}));
 248
 249         push(@obst_new_irop, "\n  memset(&ops, 0, sizeof(ops));\n");
 250         push(@obst_new_irop, "  ops.dump_node     = dump_node_$arch;\n");
 251
 252         if ($cmp_attr_func) {
 253                 push(@obst_new_irop, "  ops.node_cmp_attr = cmp_attr_$op;\n");
 254         }
 255
 256         $n_opcodes++;
 257         $temp  = "  op_$op = new_ir_op(cur_opcode++, \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
 258         $temp .= ", ".translate_arity($arity).", 0, sizeof($arch\_attr_t), &ops);\n";
 259         push(@obst_new_irop, $temp);
 260 }
 261
 262 # emit the code
 263
 264 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
 265
 266 print OUT "#include \"gen_$arch\_regalloc_if_t.h\"\n\n";
 267 print OUT @obst_cmp_attr;
 268 print OUT "\n";
 269 print OUT @obst_opvar;
 270 print OUT "\n";
 271 print OUT @obst_get_opvar;
 272 print OUT "\n";
 273
 274 print OUT<<ENDOFISIRN;
 275
 276 static opcode $arch\_opcode_start = -1;
 277 static opcode $arch\_opcode_end   = -1;
 278
 279 int is_$arch\_irn(const ir_node *node) {
 280   opcode opc = get_irn_opcode(node);
 281
 282   assert($arch\_opcode_start > 0 && "missing opcode init");
 283   assert($arch\_opcode_end > 0 && "missing opcode init");
 284
 285   if (opc > $arch\_opcode_start && opc < $arch\_opcode_end)
 286     return 1;
 287
 288   return 0;
 289 }
 290
 291 ENDOFISIRN
 292
 293 print OUT @obst_constructor;
 294
 295 print OUT<<ENDOFMAIN;
 296 /**
 297  * Creates the $arch specific firm operations
 298  * needed for the assembler irgs.
 299  */
 300 void $arch\_create_opcodes(void) {
 301 #define N   irop_flag_none
 302 #define L   irop_flag_labeled
 303 #define C   irop_flag_commutative
 304 #define X   irop_flag_cfopcode
 305 #define I   irop_flag_ip_cfopcode
 306 #define F   irop_flag_fragile
 307 #define Y   irop_flag_forking
 308 #define H   irop_flag_highlevel
 309 #define c   irop_flag_constlike
 310 #define K   irop_flag_keep
 311
 312   ir_op_ops ops;
 313   int cur_opcode = get_next_ir_opcodes($n_opcodes);
 314
 315   $arch\_opcode_start = cur_opcode++;
 316
 317 ENDOFMAIN
 318
 319 print OUT @obst_new_irop;
 320 print OUT "\n  $arch\_register_additional_opcodes(cur_opcode);\n";
 321 print OUT "  $arch\_opcode_end = cur_opcode";
 322 print OUT " + $additional_opcodes" if (defined($additional_opcodes));
 323 print OUT ";\n";
 324 print OUT "}\n";
 325
 326 close(OUT);
 327
 328 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
 329
 330 print OUT "int is_$arch\_irn(const ir_node *node);\n";
 331 print OUT @obst_header;
 332
 333 close(OUT);
 334
 335 ###
 336 # Translates numeric arity into string constant.
 337 ###
 338 sub translate_arity {
 339         my $arity = shift;
 340
 341         if ($arity =~ /^\d+$/) {
 342                 if    ($arity == 0) {
 343                         return "oparity_zero";
 344                 }
 345                 elsif ($arity == 1) {
 346                         return "oparity_unary";
 347                 }
 348                 elsif ($arity == 2) {
 349                         return "oparity_binary";
 350                 }
 351                 elsif ($arity == 3) {
 352                         return "oparity_trinary";
 353                 }
 354                 else {
 355                         return "$arity";
 356                 }
 357         }
 358         else {
 359                 return "oparity_".$arity;
 360         }
 361 }