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                         $temp .= "\n";
 131                         $temp .= "  if (!op_$op) {\n";
 132                         $temp .= "    assert(0);\n";
 133                         $temp .= "    return NULL;\n";
 134                         $temp .= "  }\n\n";
 135                         for (my $i = 1; $i <= $arity; $i++) {
 136                                 $temp .= "  in[".($i - 1)."] = op".$i.";\n";
 137                         }
 138                         $temp .= "  res = new_ir_node(db, irg, block, op_$op, mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n";
 139                         $temp .= "  set_ia32_pncode(res, -1);\n";
 140                         $temp .= "  res = optimize_node(res);\n";
 141                         $temp .= "  irn_vrfy_irg(res, irg);\n\n";
 142
 143                         # set register flags
 144                         $temp .= "  attr = get_ia32_attr(res);\n\n";
 145                         $temp .= "  attr->flags  = 0;                                 /* clear flags */\n";
 146                         if (exists($n{"spill"}) && $n{"spill"} == 0) {
 147                                 $temp .= "  attr->flags |= arch_irn_flags_dont_spill;          /* op is NOT spillable */\n";
 148                         }
 149                         if (exists($n{"remat"}) && $n{"remat"} == 1) {
 150                                 $temp .= "  attr->flags |= arch_irn_flags_rematerializable;   /* op can be easily recalulated */\n";
 151                         }
 152
 153                         # allocate memory and set pointer to register requirements
 154                         if (exists($n{"reg_req"})) {
 155                                 my %req = %{ $n{"reg_req"} };
 156                                 my $idx;
 157
 158                                 undef my @in;
 159                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 160                                 undef my @out;
 161                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 162
 163                                 if (@in) {
 164                                         $temp .= "\n  /* allocate memory for IN register requirements and assigned registers */\n";
 165                                         $temp .= "  attr->in_req    = calloc(".($#in + 1).", sizeof(arch_register_req_t *));  /* space for in requirements */\n";
 166                                         for ($idx = 0; $idx <= $#in; $idx++) {
 167                                                 $temp .= "  attr->in_req[$idx] = ".$op."_reg_req_in_".$idx.";\n";
 168                                         }
 169                                 }
 170
 171                                 if (@out) {
 172                                         $temp .= "\n  /* allocate memory for OUT register requirements and assigned registers */\n";
 173                                         $temp .= "  attr->out_req    = calloc(".($#out + 1).", sizeof(arch_register_req_t *)); /* space for out requirements */\n";
 174                                         $temp .= "  attr->slots      = calloc(".($#out + 1).", sizeof(arch_register_t *));     /* space for assigned registers */\n";
 175                                         for ($idx = 0; $idx <= $#out; $idx++) {
 176                                                 $temp .= "  attr->out_req[$idx] = ".$op."_reg_req_out_".$idx.";\n";
 177                                         }
 178                                         $temp .= "  attr->n_res      = ".($#out + 1).";\n";
 179                                 }
 180                                 else {
 181                                         $temp .= "  attr->n_res      = 0;\n";
 182                                 }
 183                         }
 184
 185                         $temp .= "\n  return res;\n";
 186
 187                         push(@obst_constructor, $temp);
 188                 }
 189                 else { # user defined constructor
 190                         push(@obst_constructor, $n{"rd_constructor"});
 191                 }
 192
 193                 # close constructor function
 194                 push(@obst_constructor, "}\n\n");
 195
 196         } # constructor creation
 197
 198         # set default values for state and flags if not given
 199         $n{"state"}    = "pinned" if (! exists($n{"state"}));
 200         $n{"op_flags"} = "N"      if (! exists($n{"op_flags"}));
 201
 202         push(@obst_new_irop, "\n  memset(&ops, 0, sizeof(ops));\n");
 203         push(@obst_new_irop, "  ops.dump_node     = dump_node_$arch;\n");
 204
 205         if ($cmp_attr_func) {
 206                 push(@obst_new_irop, "  ops.node_cmp_attr = cmp_attr_$op;\n");
 207         }
 208
 209         $temp  = "  op_$op = new_ir_op(get_next_ir_opcode(), \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
 210         $temp .= ", ".translate_arity($arity).", 0, sizeof(asmop_attr), &ops);\n";
 211         push(@obst_new_irop, $temp);
 212 }
 213
 214 # emit the code
 215
 216 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
 217
 218 print OUT @obst_cmp_attr;
 219 print OUT "\n";
 220 print OUT @obst_opvar;
 221 print OUT "\n";
 222 print OUT @obst_get_opvar;
 223 print OUT "\n";
 224 print OUT "int is_".$arch."_irn(const ir_node *node) {\n  if (".join(" ||\n      ", @obst_is_archirn).")\n    return 1;\n  else\n    return 0;\n}\n\n";
 225 print OUT @obst_constructor;
 226
 227 print OUT<<ENDOFMAIN;
 228 /**
 229  * Creates the $arch specific firm operations
 230  * needed for the assembler irgs.
 231  */
 232 void $arch\_create_opcodes(void) {
 233 #define N   irop_flag_none
 234 #define L   irop_flag_labeled
 235 #define C   irop_flag_commutative
 236 #define X   irop_flag_cfopcode
 237 #define I   irop_flag_ip_cfopcode
 238 #define F   irop_flag_fragile
 239 #define Y   irop_flag_forking
 240 #define H   irop_flag_highlevel
 241 #define c   irop_flag_constlike
 242
 243         ir_op_ops ops;
 244
 245 ENDOFMAIN
 246
 247 print OUT @obst_new_irop;
 248 print OUT "}\n";
 249
 250 close(OUT);
 251
 252 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
 253
 254 print OUT @obst_header;
 255
 256 close(OUT);
 257
 258 ###
 259 # Translates numeric arity into string constant.
 260 ###
 261 sub translate_arity {
 262         my $arity = shift;
 263
 264         if ($arity =~ /^\d+$/) {
 265                 if    ($arity == 0) {
 266                         return "oparity_zero";
 267                 }
 268                 elsif ($arity == 1) {
 269                         return "oparity_unary";
 270                 }
 271                 elsif ($arity == 2) {
 272                         return "oparity_binary";
 273                 }
 274                 elsif ($arity == 3) {
 275                         return "oparity_trinary";
 276                 }
 277                 else {
 278                         return "$arity";
 279                 }
 280         }
 281         else {
 282                 return "oparity_".$arity;
 283         }
 284 }