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 %nodes;
  20
  21 # include spec file
  22
  23 my $return;
  24
  25 no strict "subs";
  26 unless ($return = do $specfile) {
  27         warn "couldn't parse $specfile: $@" if $@;
  28         warn "couldn't do $specfile: $!"    unless defined $return;
  29         warn "couldn't run $specfile"       unless $return;
  30 }
  31 use strict "subs";
  32
  33 my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
  34 my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
  35
  36 #print Dumper(%nodes);
  37
  38 # create c code file from specs
  39
  40 my @obst_opvar;       # stack for the "ir_op *op_<arch>_<op-name> = NULL;" statements
  41 my @obst_get_opvar;   # stack for the get_op_<arch>_<op-name>() functions
  42 my @obst_constructor; # stack for node constructor functions
  43 my @obst_new_irop;    # stack for the new_ir_op calls
  44 my @obst_header;      # stack for function prototypes
  45 my @obst_is_archirn;  # stack for the is_$arch_irn() function
  46 my @obst_cmp_attr;    # stack for the compare attribute functions
  47 my $orig_op;
  48 my $arity;
  49 my $cmp_attr_func;
  50 my $temp;
  51
  52 push(@obst_header, "void ".$arch."_create_opcodes(void);\n");
  53
  54 foreach my $op (keys(%nodes)) {
  55         my %n = %{ $nodes{"$op"} };
  56
  57         $orig_op = $op;
  58         $op      = $arch."_".$op;
  59         $arity   = $n{"arity"};
  60         $temp    = "";
  61
  62         push(@obst_opvar, "ir_op *op_$op = NULL;\n");
  63         push(@obst_get_opvar, "ir_op *get_op_$op(void)   { return op_$op; }\n");
  64         push(@obst_get_opvar, "int    is_$op(const ir_node *n) { return get_irn_op(n) == op_$op; }\n\n");
  65
  66         push(@obst_is_archirn, "is_$op(node)");
  67
  68         push(@obst_header, "int is_$op(const ir_node *n);\n");
  69
  70         $cmp_attr_func = 0;
  71         # create compare attribute function if needed
  72         if (exists($n{"cmp_attr"})) {
  73                 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
  74                 push(@obst_cmp_attr, "  asmop_attr *attr_a = get_ia32_attr(a);\n");
  75                 push(@obst_cmp_attr, "  asmop_attr *attr_b = get_ia32_attr(b);\n");
  76                 push(@obst_cmp_attr, $n{"cmp_attr"});
  77                 push(@obst_cmp_attr, "}\n\n");
  78
  79                 $cmp_attr_func = 1;
  80         }
  81
  82         if (exists($n{"rd_constructor"}) && $n{"rd_constructor"} =~ /^NONE$/i) {
  83                 # we explicitly skip the constructor if the specification entry says NONE
  84         }
  85         else {
  86                 $n{"comment"} = "construct $op" if(!exists($n{"comment"}));
  87                 $n{"comment"} =~ s/^"|"$//g;    # remove "
  88                 $n{"comment"} = "/* ".$n{"comment"}." */\n";
  89                 push(@obst_constructor, $n{"comment"});
  90
  91                 # create constructor head
  92                 my $complete_args = "";
  93                 my $arg_names     = "";
  94                 $temp             = "";
  95
  96                 $temp = "ir_node *new_rd_$op(dbg_info *db, ir_graph *irg, ir_node *block";
  97                 if (!exists($n{"args"}) || $n{"args"} =~ /^DEFAULT$/i) { # default args
  98                         if ($n{"arity"} !~ /^\d+$/) {
  99                                 print "DEFAULT args require numeric arity (0, 1, 2, ...)! Ignoring op $orig_op!\n";
 100                                 next;
 101                         }
 102                         for (my $i = 1; $i <= $n{"arity"}; $i++) {
 103                                 $complete_args .= ", ir_node *op".$i;
 104                                 $arg_names     .= ", op".$i;
 105                         }
 106                         $complete_args .= ", ir_mode *mode";
 107                         $arg_names     .= ", mode";
 108                 }
 109                 else { # user defined args
 110                         for my $href (@{ $n{"args"} }) {
 111                                 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
 112                                 $complete_args  .= ", ".$href->{"type"}.$href->{"name"};
 113                                 $arg_names      .= ", ".$href->{"name"};
 114                         }
 115                 }
 116                 $complete_args = substr($complete_args, 2);
 117                 $temp .= ", $complete_args)";
 118                 push(@obst_constructor, $temp." {\n");
 119                 push(@obst_header, $temp.";\n");
 120
 121                 # emit constructor code
 122                 if (!exists($n{"rd_constructor"}) || $n{"rd_constructor"} =~ /^DEFAULT$/i) { # default constructor
 123                         if ($n{"arity"} !~ /^\d+$/) {
 124                                 print "DEFAULT rd_constructor requires arity 0,1,2 or 3! Ignoring op $orig_op!\n";
 125                                 next;
 126                         }
 127                         $temp  = "  asmop_attr *attr;\n";
 128                         $temp .= "  ir_node *res;\n";
 129                         $temp .= "  ir_node *in[$arity];\n" if ($arity > 0);
 130
 131                         undef my $in_req_var;
 132                         undef my $out_req_var;
 133                         undef my $slots_var;
 134
 135                         # set up static variables for requirements and registers
 136                         if (exists($n{"reg_req"})) {
 137                                 my %req = %{ $n{"reg_req"} };
 138                                 my $idx;
 139
 140                                 undef my @in;
 141                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 142                                 undef my @out;
 143                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 144
 145                                 if (@in) {
 146                                         $in_req_var = "_in_req_$op";
 147                                         $temp .= "  static const $arch\_register_req_t *".$in_req_var."[] =\n  {\n";
 148                                         for ($idx = 0; $idx <= $#in; $idx++) {
 149                                                 $temp .= "    ".$op."_reg_req_in_".$idx.",\n";
 150                                         }
 151                                         $temp .= "  };\n";
 152                                 }
 153
 154                                 if (@out) {
 155                                         $out_req_var = "_out_req_$op";
 156                                         $slots_var   = "_slots_$op";
 157
 158                                         $temp .= "  static const $arch\_register_req_t *".$out_req_var."[] =\n  {\n";
 159                                         for ($idx = 0; $idx <= $#out; $idx++) {
 160                                                 $temp .= "    ".$op."_reg_req_out_".$idx.",\n";
 161                                         }
 162                                         $temp .= "  };\n";
 163                                         $temp .= "  static arch_register_t *".$slots_var."[".($#out + 1)."];\n";
 164                                 }
 165                         }
 166
 167                         $temp .= "\n";
 168                         $temp .= "  if (!op_$op) {\n";
 169                         $temp .= "    assert(0);\n";
 170                         $temp .= "    return NULL;\n";
 171                         $temp .= "  }\n\n";
 172                         for (my $i = 1; $i <= $arity; $i++) {
 173                                 $temp .= "  in[".($i - 1)."] = op".$i.";\n";
 174                         }
 175                         $temp .= "  res = new_ir_node(db, irg, block, op_$op, mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n";
 176                         $temp .= "  set_ia32_pncode(res, -1);\n";
 177                         $temp .= "  res = optimize_node(res);\n";
 178                         $temp .= "  irn_vrfy_irg(res, irg);\n\n";
 179
 180                         # set register flags
 181                         $temp .= "  attr = get_ia32_attr(res);\n\n";
 182                         $temp .= "  attr->flags  = 0;                                 /* clear flags */\n";
 183                         if (exists($n{"spill"}) && $n{"spill"} == 0) {
 184                                 $temp .= "  attr->flags |= arch_irn_flags_dont_spill;          /* op is NOT spillable */\n";
 185                         }
 186                         if (exists($n{"remat"}) && $n{"remat"} == 1) {
 187                                 $temp .= "  attr->flags |= arch_irn_flags_rematerializable;   /* op can be easily recalulated */\n";
 188                         }
 189
 190                         # allocate memory and set pointer to register requirements
 191                         if (exists($n{"reg_req"})) {
 192                                 my %req = %{ $n{"reg_req"} };
 193
 194                                 undef my @in;
 195                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 196                                 undef my @out;
 197                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 198
 199                                 $temp .= "\n  /* set IN register requirements */\n";
 200                                 if (@in) {
 201                                         $temp .= "  attr->in_req  = ".$in_req_var.";\n";
 202                                 }
 203                                 else {
 204                                         $temp .= "  attr->in_req  = NULL;\n";
 205                                 }
 206
 207                                 $temp .= "\n  /* set OUT register requirements and get space for registers */\n";
 208                                 if (@out) {
 209                                         $temp .= "  attr->out_req = ".$out_req_var.";\n";
 210                                         $temp .= "  attr->slots   = ".$slots_var.";\n";
 211                                         $temp .= "  attr->n_res   = ".($#out + 1).";\n";
 212                                 }
 213                                 else {
 214                                         $temp .= "  attr->out_req = NULL;\n";
 215                                         $temp .= "  attr->slots   = NULL;\n";
 216                                         $temp .= "  attr->n_res   = 0;\n";
 217                                 }
 218                         }
 219
 220                         $temp .= "\n  return res;\n";
 221
 222                         push(@obst_constructor, $temp);
 223                 }
 224                 else { # user defined constructor
 225                         push(@obst_constructor, $n{"rd_constructor"});
 226                 }
 227
 228                 # close constructor function
 229                 push(@obst_constructor, "}\n\n");
 230
 231         } # constructor creation
 232
 233         # set default values for state and flags if not given
 234         $n{"state"}    = "pinned" if (! exists($n{"state"}));
 235         $n{"op_flags"} = "N"      if (! exists($n{"op_flags"}));
 236
 237         push(@obst_new_irop, "\n  memset(&ops, 0, sizeof(ops));\n");
 238         push(@obst_new_irop, "  ops.dump_node     = dump_node_$arch;\n");
 239
 240         if ($cmp_attr_func) {
 241                 push(@obst_new_irop, "  ops.node_cmp_attr = cmp_attr_$op;\n");
 242         }
 243
 244         $temp  = "  op_$op = new_ir_op(get_next_ir_opcode(), \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
 245         $temp .= ", ".translate_arity($arity).", 0, sizeof(asmop_attr), &ops);\n";
 246         push(@obst_new_irop, $temp);
 247 }
 248
 249 # emit the code
 250
 251 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
 252
 253 print OUT "#include \"gen_$arch\_regalloc_if_t.h\"\n\n";
 254 print OUT @obst_cmp_attr;
 255 print OUT "\n";
 256 print OUT @obst_opvar;
 257 print OUT "\n";
 258 print OUT @obst_get_opvar;
 259 print OUT "\n";
 260
 261 print OUT<<ENDOFISIRN;
 262
 263 static opcode ia32_opcode_start = -1;
 264 static opcode ia32_opcode_end   = -1;
 265
 266 int is_$arch\_irn(const ir_node *node) {
 267   opcode opc = get_irn_opcode(node);
 268
 269   assert(ia32_opcode_start > 0 && "missing opcode init");
 270   assert(ia32_opcode_end > 0 && "missing opcode init");
 271
 272   if (opc > ia32_opcode_start && opc < ia32_opcode_end)
 273     return 1;
 274
 275   return 0;
 276 }
 277
 278 ENDOFISIRN
 279
 280 print OUT @obst_constructor;
 281
 282 print OUT<<ENDOFMAIN;
 283 /**
 284  * Creates the $arch specific firm operations
 285  * needed for the assembler irgs.
 286  */
 287 void $arch\_create_opcodes(void) {
 288 #define N   irop_flag_none
 289 #define L   irop_flag_labeled
 290 #define C   irop_flag_commutative
 291 #define X   irop_flag_cfopcode
 292 #define I   irop_flag_ip_cfopcode
 293 #define F   irop_flag_fragile
 294 #define Y   irop_flag_forking
 295 #define H   irop_flag_highlevel
 296 #define c   irop_flag_constlike
 297
 298   ir_op_ops ops;
 299
 300   ia32_opcode_start = get_next_ir_opcode();
 301
 302 ENDOFMAIN
 303
 304 print OUT @obst_new_irop;
 305 print OUT "\n  ia32_opcode_end = get_next_ir_opcode();\n";
 306 print OUT "}\n";
 307
 308 close(OUT);
 309
 310 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
 311
 312 print OUT @obst_header;
 313
 314 close(OUT);
 315
 316 ###
 317 # Translates numeric arity into string constant.
 318 ###
 319 sub translate_arity {
 320         my $arity = shift;
 321
 322         if ($arity =~ /^\d+$/) {
 323                 if    ($arity == 0) {
 324                         return "oparity_zero";
 325                 }
 326                 elsif ($arity == 1) {
 327                         return "oparity_unary";
 328                 }
 329                 elsif ($arity == 2) {
 330                         return "oparity_binary";
 331                 }
 332                 elsif ($arity == 3) {
 333                         return "oparity_trinary";
 334                 }
 335                 else {
 336                         return "$arity";
 337                 }
 338         }
 339         else {
 340                 return "oparity_".$arity;
 341         }
 342 }