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 $cmp_attr_func;
  50
  51 push(@obst_header, "void ".$arch."_create_opcodes(void);\n");
  52
  53 foreach my $op (keys(%nodes)) {
  54         my %n = %{ $nodes{"$op"} };
  55
  56         $orig_op = $op;
  57         $op      = $arch."_".$op;
  58         $arity   = $n{"arity"};
  59
  60         push(@obst_opvar, "ir_op *op_$op = NULL;\n");
  61         push(@obst_get_opvar, "ir_op *get_op_$op(void)   { return op_$op; }\n");
  62         push(@obst_get_opvar, "int    is_$op(const ir_node *n) { return get_irn_op(n) == op_$op; }\n\n");
  63
  64         push(@obst_is_archirn, "is_$op(node)");
  65
  66         push(@obst_header, "int is_$op(const ir_node *n);\n");
  67
  68         $cmp_attr_func = 0;
  69         # create compare attribute function if needed
  70         if (exists($n{"cmp_attr"})) {
  71                 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
  72                 push(@obst_cmp_attr, "  asmop_attr *attr_a = get_ia32_attr(a);\n");
  73                 push(@obst_cmp_attr, "  asmop_attr *attr_b = get_ia32_attr(b);\n");
  74                 push(@obst_cmp_attr, $n{"cmp_attr"});
  75                 push(@obst_cmp_attr, "}\n\n");
  76
  77                 $cmp_attr_func = 1;
  78         }
  79
  80         if (exists($n{"rd_constructor"}) && $n{"rd_constructor"} =~ /^NONE$/i) {
  81                 # we explicitly skip the constructor if the specification entry says NONE
  82         }
  83         else {
  84                 $n{"comment"} = "construct $op" if(!exists($n{"comment"}));
  85                 $n{"comment"} =~ s/^"|"$//g;    # remove "
  86                 $n{"comment"} = "/* ".$n{"comment"}." */\n";
  87                 push(@obst_constructor, $n{"comment"});
  88
  89                 # create constructor head
  90                 my $complete_args = "";
  91                 my $arg_names     = "";
  92                 my $temp          = "";
  93
  94                 $temp = "ir_node *new_rd_$op(dbg_info *db, ir_graph *irg, ir_node *block";
  95                 if (!exists($n{"args"}) || $n{"args"} =~ /^DEFAULT$/i) { # default args
  96                         if ($n{"arity"} !~ /^[0-3]$/) {
  97                                 print "DEFAULT args require arity 0,1,2 or 3! Ignoring op $orig_op!\n";
  98                                 next;
  99                         }
 100                         for (my $i = 1; $i <= $n{"arity"}; $i++) {
 101                                 $complete_args .= ", ir_node *op".$i;
 102                                 $arg_names     .= ", op".$i;
 103                         }
 104                         $complete_args .= ", ir_mode *mode";
 105                         $arg_names     .= ", mode";
 106                 }
 107                 else { # user defined args
 108                         for my $href (@{ $n{"args"} }) {
 109                                 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
 110                                 $complete_args  .= ", ".$href->{"type"}.$href->{"name"};
 111                                 $arg_names      .= ", ".$href->{"name"};
 112                         }
 113                 }
 114                 $complete_args = substr($complete_args, 2);
 115                 $temp .= ", $complete_args)";
 116                 push(@obst_constructor, $temp." {\n");
 117                 push(@obst_header, $temp.";\n");
 118
 119                 # emit constructor code
 120                 if (!exists($n{"rd_constructor"}) || $n{"rd_constructor"} =~ /^DEFAULT$/i) { # default constructor
 121                         if ($n{"arity"} !~ /^[0-3]$/) {
 122                                 print "DEFAULT rd_constructor requires arity 0,1,2 or 3! Ignoring op $orig_op!\n";
 123                                 next;
 124                         }
 125                         $temp  = "  asmop_attr *attr;\n";
 126                         $temp .= "  ir_node *res;\n";
 127                         $temp .= "  ir_node *in[$arity];\n" if ($arity > 0);
 128                         $temp .= "\n";
 129                         $temp .= "  if (!op_$op) {\n";
 130                         $temp .= "    assert(0);\n";
 131                         $temp .= "    return NULL;\n";
 132                         $temp .= "  }\n\n";
 133                         for (my $i = 1; $i <= $arity; $i++) {
 134                                 $temp .= "  in[".($i - 1)."] = op".$i.";\n";
 135                         }
 136                         $temp .= "  res = new_ir_node(db, irg, block, op_$op, mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n";
 137                         $temp .= "  set_ia32_pncode(res, -1);\n";
 138                         $temp .= "  res = optimize_node(res);\n";
 139                         $temp .= "  irn_vrfy_irg(res, irg);\n\n";
 140
 141                         # set register flags
 142                         $temp .= "  attr = get_ia32_attr(res);\n\n";
 143                         $temp .= "  attr->flags  = 0;                                 /* clear flags */\n";
 144                         if (!exists($n{"spill"}) || $n{"spill"} == 1) {
 145                                 $temp .= "  attr->flags |= arch_irn_flags_spillable;          /* op is spillable */\n";
 146                         }
 147                         if (exists($n{"remat"}) && $n{"remat"} == 1) {
 148                                 $temp .= "  attr->flags |= arch_irn_flags_rematerializable;   /* op can be easily recalulated */\n";
 149                         }
 150
 151                         # allocate memory and set pointer to register requirements
 152                         if (exists($n{"reg_req"})) {
 153                                 my %req = %{ $n{"reg_req"} };
 154                                 my $idx;
 155
 156                                 undef my @in;
 157                                 @in = @{ $req{"in"} } if (exists($req{"in"}));
 158                                 undef my @out;
 159                                 @out = @{ $req{"out"} } if exists(($req{"out"}));
 160
 161                                 if (@in) {
 162                                         $temp .= "\n  /* allocate memory for IN register requirements and assigned registers */\n";
 163                                         $temp .= "  attr->in_req    = calloc(".($#in + 1).", sizeof(arch_register_req_t *));  /* space for in requirements */\n";
 164                                         for ($idx = 0; $idx <= $#in; $idx++) {
 165                                                 $temp .= "  attr->in_req[$idx] = ".$op."_reg_req_in_".$idx.";\n";
 166                                         }
 167                                 }
 168
 169                                 if (@out) {
 170                                         $temp .= "\n  /* allocate memory for OUT register requirements and assigned registers */\n";
 171                                         $temp .= "  attr->out_req    = calloc(".($#out + 1).", sizeof(arch_register_req_t *)); /* space for out requirements */\n";
 172                                         $temp .= "  attr->slots      = calloc(".($#out + 1).", sizeof(arch_register_t *));     /* space for assigned registers */\n";
 173                                         for ($idx = 0; $idx <= $#out; $idx++) {
 174                                                 $temp .= "  attr->out_req[$idx] = ".$op."_reg_req_out_".$idx.";\n";
 175                                         }
 176                                         $temp .= "  attr->n_res      = ".($#out + 1).";\n";
 177                                 }
 178                                 else {
 179                                         $temp .= "  attr->n_res      = 0;\n";
 180                                 }
 181                         }
 182
 183                         $temp .= "\n  return res;\n";
 184
 185                         push(@obst_constructor, $temp);
 186                 }
 187                 else { # user defined constructor
 188                         push(@obst_constructor, $n{"rd_constructor"});
 189                 }
 190
 191                 # close constructor function
 192                 push(@obst_constructor, "}\n\n");
 193
 194         } # constructor creation
 195
 196         # set default values for state and flags if not given
 197         $n{"state"}    = "pinned" if (! exists($n{"state"}));
 198         $n{"op_flags"} = "N"      if (! exists($n{"op_flags"}));
 199
 200         push(@obst_new_irop, "\n  memset(&ops, 0, sizeof(ops));\n");
 201         push(@obst_new_irop, "  ops.dump_node     = dump_node_$arch;\n");
 202
 203         if ($cmp_attr_func) {
 204                 push(@obst_new_irop, "  ops.node_cmp_attr = cmp_attr_$op;\n");
 205         }
 206
 207         $temp  = "  op_$op = new_ir_op(get_next_ir_opcode(), \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
 208         $temp .= ", ".translate_arity($arity).", 0, sizeof(asmop_attr), &ops);\n";
 209         push(@obst_new_irop, $temp);
 210 }
 211
 212 # emit the code
 213
 214 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
 215
 216 print OUT @obst_cmp_attr;
 217 print OUT "\n";
 218 print OUT @obst_opvar;
 219 print OUT "\n";
 220 print OUT @obst_get_opvar;
 221 print OUT "\n";
 222 print OUT "int is_".$arch."_irn(const ir_node *node) {\n  if (".join(" ||\n      ", @obst_is_archirn).")\n    return 1;\n  else\n    return 0;\n}\n\n";
 223 print OUT @obst_constructor;
 224
 225 print OUT<<ENDOFMAIN;
 226 /**
 227  * Creates the $arch specific firm operations
 228  * needed for the assembler irgs.
 229  */
 230 void $arch\_create_opcodes(void) {
 231 #define N   irop_flag_none
 232 #define L   irop_flag_labeled
 233 #define C   irop_flag_commutative
 234 #define X   irop_flag_cfopcode
 235 #define I   irop_flag_ip_cfopcode
 236 #define F   irop_flag_fragile
 237 #define Y   irop_flag_forking
 238 #define H   irop_flag_highlevel
 239 #define c   irop_flag_constlike
 240
 241         ir_op_ops ops;
 242
 243 ENDOFMAIN
 244
 245 print OUT @obst_new_irop;
 246 print OUT "}\n";
 247
 248 close(OUT);
 249
 250 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
 251
 252 print OUT @obst_header;
 253
 254 close(OUT);
 255
 256 ###
 257 # Translates numeric arity into string constant.
 258 ###
 259 sub translate_arity {
 260         my $arity = shift;
 261
 262         if ($arity =~ /^\d+$/) {
 263                 if    ($arity == 0) {
 264                         return "oparity_zero";
 265                 }
 266                 elsif ($arity == 1) {
 267                         return "oparity_unary";
 268                 }
 269                 elsif ($arity == 2) {
 270                         return "oparity_binary";
 271                 }
 272                 elsif ($arity == 3) {
 273                         return "oparity_trinary";
 274                 }
 275                 else {
 276                         return "$arity";
 277                 }
 278         }
 279         else {
 280                 return "oparity_".$arity;
 281         }
 282 }