generate_new_opcodes.pl 31.5 KB
Newer Older
1
2
#!/usr/bin/perl -w

Christian Würdig's avatar
Christian Würdig committed
3
#
Michael Beck's avatar
Michael Beck committed
4
# Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
Christian Würdig's avatar
Christian Würdig committed
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
#
# This file is part of libFirm.
#
# This file may be distributed and/or modified under the terms of the
# GNU General Public License version 2 as published by the Free Software
# Foundation and appearing in the file LICENSE.GPL included in the
# packaging of this file.
#
# Licensees holding valid libFirm Professional Edition licenses may use
# this file in accordance with the libFirm Commercial License.
# Agreement provided with the Software.
#
# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE.
#

22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
# This script generates the C code which creates the irop's and
# their coresponding node constructors for all operations in a given spec
# so they can be used as normal firm nodes.
# Creation: 2005/10/19

use strict;
use Data::Dumper;

my $specfile   = $ARGV[0];
my $target_dir = $ARGV[1];
my $state      = 1;
my $cur_op     = "";
my $line_nr    = 0;

our $arch;
37
our $additional_opcodes;
38
our %nodes;
39
our %cpu;
40
our $default_op_attr_type;
41
our $default_attr_type;
42
our $default_cmp_attr;
43
our $default_copy_attr;
44
our %init_attr;
45
our $custom_init_attr_func;
46
our %compare_attr;
47
our %copy_attr;
48
our %reg_classes;
49
our %custom_irn_flags;
50
51
52
53
54
55
56

# include spec file

my $return;

no strict "subs";
unless ($return = do $specfile) {
57
58
59
	die "Fatal error: couldn't parse $specfile: $@" if $@;
	die "Fatal error: couldn't do $specfile: $!"    unless defined $return;
	die "Fatal error: couldn't run $specfile"       unless $return;
60
61
62
}
use strict "subs";

63
my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
Christian Würdig's avatar
Christian Würdig committed
64
my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
65

66
67
68
if(!defined($default_attr_type)) {
	$default_attr_type = "${arch}_attr_t";
}
Matthias Braun's avatar
Matthias Braun committed
69
if(! %init_attr) {
70
	%init_attr = (
71
		"$default_attr_type" => "\tinit_${arch}_attributes(res, irn_flags_, in_reqs, n_res);",
72
73
	);
}
74
75
76
if(!defined($default_cmp_attr)) {
	$default_cmp_attr = "${arch}_compare_attr";
}
Matthias Braun's avatar
Matthias Braun committed
77
if(! %compare_attr) {
78
79
80
81
	%compare_attr = (
		"${default_attr_type}" => "${default_cmp_attr}",
	);
}
82

83
84
# create c code file from specs

85
86
my @obst_limit_func;
my @obst_reg_reqs;
87
88
my @obst_opvar;       # stack for the "ir_op *op_<arch>_<op-name> = NULL;" statements
my @obst_get_opvar;   # stack for the get_op_<arch>_<op-name>() functions
89
my $obst_constructor; # stack for node constructor functions
90
my @obst_new_irop;    # stack for the new_ir_op calls
Matthias Braun's avatar
Matthias Braun committed
91
my @obst_free_irop;   # stack for free_ir_op calls
92
my @obst_enum_op;     # stack for creating the <arch>_opcode enum
93
my $obst_header;      # stack for function prototypes
94
my @obst_is_archirn;  # stack for the is_$arch_irn() function
Christian Würdig's avatar
Christian Würdig committed
95
my @obst_cmp_attr;    # stack for the compare attribute functions
96
my $obst_proj = "";   # stack for the pn_ numbers
97
98
my $orig_op;
my $arity;
Christian Würdig's avatar
Christian Würdig committed
99
my $cmp_attr_func;
100
my $temp;
101
my $n_opcodes = 0;    # number of opcodes
102
103
my $ARITY_VARIABLE = -1;
my $ARITY_DYNAMIC  = -2;
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
my %requirements = ();
my %limit_bitsets = ();
my %reg2class = ();
my %regclass2len = ();

# build register->class hashes
foreach my $class_name (keys(%reg_classes)) {
	my @class         = @{ $reg_classes{"$class_name"} };
	my $old_classname = $class_name;

	pop(@class);

	$class_name = $arch."_".$class_name;

	my $idx = 0;
	foreach (@class) {
		$reg2class{$_->{name}} = {
			"class" => $old_classname,
			"index" => $idx
		};
		$idx++;
	}

	$regclass2len{$old_classname} = $idx;
}

130

131
132
133
# for registering additional opcodes
$n_opcodes += $additional_opcodes if (defined($additional_opcodes));

134
$obst_header .= "void ${arch}_create_opcodes(const arch_irn_ops_t *be_ops);\n";
Matthias Braun's avatar
Matthias Braun committed
135
$obst_header .= "void ${arch}_free_opcodes(void);\n";
136

137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
sub create_constructor {
	my $op   = shift;
	my $name = shift;
	my $n    = shift;
	my $on   = shift;
	my $known_mode;

	my $suffix = "";
	if ($name ne "") {
		$suffix = "_${name}";
	}

	# determine mode
	if (exists($n->{mode})) {
		$known_mode = $n->{mode};
	}

	# determine arity
	my $arity = 0;
	if(exists($n->{"arity"})) {
		$arity = $n->{"arity"};
	} elsif (exists($n->{"reg_req"}) && exists($n->{"reg_req"}{"in"})) {
		$arity = scalar(@{ $n->{"reg_req"}{"in"} });
	} elsif (exists($n->{"ins"})) {
		$arity = scalar(@{ $n->{"ins"} });
	}
	if($arity eq "variable") {
		$arity = $ARITY_VARIABLE;
	} elsif($arity eq "dynamic") {
		$arity = $ARITY_DYNAMIC;
	}

	# determine out arity
	my $out_arity = 0;
	if(exists($n->{"out_arity"})) {
		$out_arity = $n->{"out_arity"};
	} elsif (exists($n->{"reg_req"}) && exists($n->{"reg_req"}{"out"})) {
		$out_arity = scalar(@{ $n->{"reg_req"}{"out"} });
	} elsif (exists($n->{"outs"})) {
		$out_arity = scalar(@{ $n->{"outs"} });
	}
	if($out_arity eq "variable") {
		$out_arity = $ARITY_VARIABLE;
	} elsif($out_arity eq "dynamic") {
		$out_arity = $ARITY_DYNAMIC;
	}
183
184
185
	if ($out_arity != 0 && $out_arity != 1 && !defined($known_mode)) {
		$known_mode = "mode_T";
	}
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245

	my $comment = $n->{"comment"};
	if(!exists($n->{"comment"})) {
		$comment = "construct ${orig_op} node";
	}
	$comment =
		"/**\n".
		" * ${comment}\n".
		" */\n";

	$obst_constructor .= $comment;

	# create constructor head
	my $complete_args = "";
	$temp             = "";

	$temp = "ir_node *new_bd_${arch}_${op}${suffix}(dbg_info *dbgi, ir_node *block";
	if (!exists($n->{"args"})) { # default args
		if ($arity == $ARITY_VARIABLE) {
			$complete_args = ", int arity, ir_node *in[]";
		} elsif ($arity == $ARITY_DYNAMIC) {
			$complete_args = "";
		} else {
			for (my $i = 0; $i < $arity; $i++) {
				my $opname = "op${i}";
				if (exists($n->{"ins"})) {
					my @ins = @{ $n->{"ins"} };
					$opname = $ins[$i];
				}

				$complete_args .= ", ir_node *${opname}";
			}
		}
		if ($out_arity == $ARITY_VARIABLE) {
			$complete_args .= ", int n_res";
		}

		if (!defined($known_mode)) {
			$complete_args .= ", ir_mode *mode";
		}
	} else { # user defined args
		for my $href (@{ $n->{"args"} }) {
			$href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
			$complete_args  .= ", ".$href->{"type"}.$href->{"name"};
		}
	}

	# we have additional attribute arguements
	if (exists($n->{"attr"})) {
		$complete_args .= ", ".$n->{"attr"};
	}

	$temp .= "$complete_args)";
	$obst_constructor .= "${temp}\n{\n";

	$obst_header .= $comment;
	$obst_header .= "${temp};\n";

	# emit constructor code
	$temp = <<EOF;
246
247
248
	ir_graph         *irg        = get_irn_irg(block);
	ir_op            *op         = op_${arch}_${op};
	arch_irn_flags_t  irn_flags_ = arch_irn_flags_none;
249
	ir_node          *res;
250
	backend_info_t   *info;
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
EOF

	if($arity == $ARITY_DYNAMIC) {
		$temp .= <<EOF;
	int             arity   = -1;
	ir_node       **in      = NULL;
EOF
	} elsif($arity == $ARITY_VARIABLE) {
	} else {
		$temp .= <<EOF;
	int             arity   = $arity;
EOF
		if($arity > 0) {
			$temp .= <<EOF;
	ir_node        *in[$arity];
EOF
		} else {
			$temp .= <<EOF;
	ir_node       **in      = NULL;
EOF
		}
	}
	if($out_arity == $ARITY_DYNAMIC) {
		$temp .= <<EOF;
	int             n_res   = -1;
EOF
	} elsif($out_arity == $ARITY_VARIABLE) {
	} else {
		$temp .= <<EOF;
	int             n_res   = ${out_arity};
EOF
	}

	if (defined($known_mode)) {
		$temp .= <<EOF;
	ir_mode        *mode    = ${known_mode};
EOF
	}

	undef my $in_req_var;
	undef my $out_req_var;

	my $set_out_reqs = "";

	# set up static variables for requirements and registers
	if (exists($n->{"reg_req"})) {
		my %req = %{ $n->{"reg_req"} };
		my $idx;

		undef my @in;
		@in = @{ $req{"in"} } if (exists($req{"in"}));
		undef my @out;
		@out = @{ $req{"out"} } if exists(($req{"out"}));

		for(my $idx = 0; $idx < $#in; $idx++) {
			my $req = $in[$idx];
			generate_requirements($req, $n, "${arch}_${op}", $idx, 1);
		}
		for(my $idx = 0; $idx < $#out; $idx++) {
			my $req = $out[$idx];
			generate_requirements($req, $n, "${arch}_${op}", $idx, 0);
		}

		if (@in) {
			if($arity >= 0 && scalar(@in) != $arity) {
				die "Fatal error: Arity and number of in requirements don't match for ${op}\n";
			}

			$temp .= "\tstatic const arch_register_req_t *in_reqs[] =\n";
			$temp .= "\t{\n";
			for ($idx = 0; $idx <= $#in; $idx++) {
				my $req = $in[$idx];
				my $reqstruct = generate_requirements($req, $n, "${arch}_${op}", $idx, 1);
				$temp .= "\t\t& ${reqstruct},\n";
			}
			$temp .= "\t};\n";
		} else {
			if($arity > 0) {
				die "Fatal error: need in requirements for ${op}\n";
			}
			$temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n";
		}

		if (@out) {
			if($out_arity >= 0 && scalar(@out) != $out_arity) {
				die "Fatal error: Out-Arity and number of out requirements don't match for ${op}\n";
			}

			for ($idx = 0; $idx <= $#out; $idx++) {
				my $req = $out[$idx];
				my $reqstruct = generate_requirements($req, $n, "${arch}_${op}", $idx, 0);
				$set_out_reqs .= <<EOF;
343
	info->out_infos[${idx}].req = &${reqstruct};
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
EOF
			}
		} else {
			if($out_arity > 0) {
				die "Fatal error: need out requirements for ${op}\n";
			}
		}
	} else {
		$temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n";
	}
	my $attr_type = $on->{attr_type};
	if(exists($n->{"init_attr"})) {
		$temp .= "\t${attr_type} *attr;\n";
	}

	$temp .= "\n";

	if($arity > 0) {
		$temp .= "\t/* construct in array */\n";
		for (my $i = 0; $i < $arity; $i++) {
			my $opname = "op${i}";
			if (exists($n->{"ins"})) {
				my @ins = @{ $n->{"ins"} };
				$opname = $ins[$i];
			}

			$temp .= "\tin[${i}] = ${opname};\n";
		}
		$temp .= "\n";
	}

	# set flags
	if (exists($n->{"irn_flags"})) {
		$temp .= "\t/* flags */\n";
378
379
380
381
382
383
		my %known_irn_flags = (
			"none"             => "arch_irn_flags_none",
			"dont_spill"       => "arch_irn_flags_dont_spill",
			"rematerializable" => "arch_irn_flags_rematerializable",
			"modify_flags"     => "arch_irn_flags_modify_flags",
			"simple_jump"      => "arch_irn_flags_simple_jump",
384
			"not_scheduled"    => "arch_irn_flags_not_scheduled",
385
		);
Matthias Braun's avatar
Matthias Braun committed
386
		if (%custom_irn_flags) {
387
388
			%known_irn_flags = (%known_irn_flags, %custom_irn_flags);
		}
389
390
391
		foreach my $flag (@{$n->{"irn_flags"}}) {
			if (not defined($known_irn_flags{$flag})) {
				print STDERR "WARNING: irn_flag '$flag' in opcode $op is unknown\n";
392
			} else {
393
				$temp .= "\tirn_flags_ |= " . $known_irn_flags{$flag} . ";\n";
394
395
396
397
398
399
			}
		}
		$temp .= "\n";
	}

	# lookup init function
400
	my $attr_init_code = "(void)in;(void)irn_flags_;(void)in_reqs;(void)n_res;";
401
402
403
404
405
	if ($attr_type ne "") {
		$attr_init_code = $init_attr{$attr_type};
		if(!defined($attr_init_code)) {
			die "Fatal error: Couldn't find attribute initialisation code for type '${attr_type}'";
		}
406
407
408
409
410
411
412
413
414
415
416
417
	}
	my $custominit = "";
	if(defined($custom_init_attr_func)) {
		$custominit .= &$custom_init_attr_func($n, $on, "${arch}_${op}");
	}
	if(defined($n->{custominit})) {
		$custominit .= $n->{custominit};
	}

	$temp .= <<EOF;
	/* create node */
	assert(op != NULL);
418
	res = new_ir_node(dbgi, irg, block, op, mode, arity, in);
419
420
421
422
423

	/* init node attributes */
	${attr_init_code}
	${custominit}
	info = be_get_info(res);
424
	(void) info; /* avoid potential warning */
425
${set_out_reqs}
426
427
428
429

EOF

	if (exists($n->{"init_attr"})) {
430
		$temp .= "\tattr = (${attr_type}*)get_irn_generic_attr(res);\n";
431
		$temp .= "\t(void) attr; /* avoid potential warning */\n";
432
433
434
435
436
437
		$temp .= "\t".$n->{"init_attr"}."\n";
	}

	$temp .= <<EOF;
	/* optimize node */
	res = optimize_node(res);
438
	irn_verify_irg(res, irg);
439
440
441
442
443
444
445
446
447
448

	return res;
EOF

	$obst_constructor .= $temp;

	# close constructor function
	$obst_constructor .= "}\n\n";
}

449
push(@obst_enum_op, "typedef enum ${arch}_opcodes {\n");
450
foreach my $op (keys(%nodes)) {
451
	my %n        = %{ $nodes{"$op"} };
452
	my $known_mode;
453
	my $num_outs = 0;
454
	my $out_arity;
455
	my @out_flags;
Christian Würdig's avatar
Christian Würdig committed
456

457
458
459
460
461
	# determine arity
	$arity = 0;
	if(exists($n{"arity"})) {
		$arity = $n{"arity"};
	} elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
462
		$arity = scalar(@{ $n{"reg_req"}{"in"} });
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
	} elsif (exists($n{"ins"})) {
		$arity = scalar(@{ $n{"ins"} });
	}
	if($arity eq "variable") {
		$arity = $ARITY_VARIABLE;
	} elsif($arity eq "dynamic") {
		$arity = $ARITY_DYNAMIC;
	}

	# determine out arity
	$out_arity = 0;
	if(exists($n{"out_arity"})) {
		$out_arity = $n{"out_arity"};
	} elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"out"})) {
		$out_arity = scalar(@{ $n{"reg_req"}{"out"} });
	} elsif (exists($n{"outs"})) {
		$out_arity = scalar(@{ $n{"outs"} });
	}
	if($out_arity eq "variable") {
		$out_arity = $ARITY_VARIABLE;
	} elsif($out_arity eq "dynamic") {
		$out_arity = $ARITY_DYNAMIC;
485
486
	}

Christian Würdig's avatar
Christian Würdig committed
487
488
	$orig_op = $op;
	$op      = $arch."_".$op;
489
	$temp    = "";
Christian Würdig's avatar
Christian Würdig committed
490

491
	# define proj numbers and in numbers
492
493
	if (exists($n{"outs"})) {
		undef my @outs;
494

495
		@outs = @{ $n{"outs"} };
496
		if($out_arity >= 0 && scalar(@outs) != $out_arity) {
497
			die "Fatal error: Op ${op} has different number of outs and out_arity\n";
498
499
		}

Christian Würdig's avatar
Christian Würdig committed
500
		$num_outs = $#outs + 1;
501

502
503
504
505
506
507
508
509
510
511
		if ($num_outs > 0) {
			$obst_proj .= "\nenum pn_${op} {\n";

			for (my $idx = 0; $idx <= $#outs; $idx++) {
				# check, if we have additional flags annotated to out
				if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) {
					push(@out_flags, $1);
					$outs[$idx] =~ s/:((S|I)(\|(S|I))*)//;
				}
				$obst_proj .= "\tpn_${op}_".$outs[$idx]." = ${idx},\n";
512
513
			}

514
515
			$obst_proj .= "};\n";
		}
516
		# outs have names, it must be a mode_T node
517
518
519
		if (!defined($n{mode})) {
			$n{mode} = "mode_T";
		}
520
	}
521
522
523
524
	if (exists($n{"ins"})) {
		undef my @ins;

		@ins = @{ $n{"ins"} };
525
		if($arity >= 0 && scalar(@ins) != $arity) {
526
			die "Fatal error: Op ${op} has different number of ins and arity\n";
527
		}
528

529
530
531
532
533
534
		if ($#ins >= 0) {
			$obst_proj .= "\nenum n_$op {\n";
			for (my $idx = 0; $idx <= $#ins; $idx++) {
				$obst_proj .= "\tn_${op}_".$ins[$idx]." = ${idx},\n";
			}
			$obst_proj .= "};\n";
535
		}
536
537
	}

538
	# Create opcode
Christian Würdig's avatar
Christian Würdig committed
539
	push(@obst_opvar, "ir_op *op_$op = NULL;\n");
540
	push(@obst_get_opvar, "ir_op *get_op_$op(void)         { return op_$op; }\n");
541
	push(@obst_get_opvar, "int    is_$op(const ir_node *n) { return get_$arch\_irn_opcode(n) == iro_$op; }\n\n");
Christian Würdig's avatar
Christian Würdig committed
542
543
544

	push(@obst_is_archirn, "is_$op(node)");

545
546
547
548
549
	$obst_header .= <<EOF;
extern ir_op *op_${op};
ir_op *get_op_${op}(void);
int is_${op}(const ir_node *n);
EOF
Christian Würdig's avatar
Christian Würdig committed
550

551
	my $attr_type= $n{attr_type};
552
553
	if(!defined($attr_type)) {
		$attr_type = $default_attr_type;
554
		$n{attr_type} = $attr_type;
555
556
	}

557
558
559
560
561
562
	# determine hash function
	my $hash_func;
	if (exists($n{"hash_func"})) {
		$hash_func = $n{"hash_func"};
	}

563
	# determine compare function
Matthias Braun's avatar
Matthias Braun committed
564
565
566
567
	my $cmp_attr_func;
	if (exists($n{"cmp_attr"})) {
		my $cmpcode = $n{"cmp_attr"};

568
		push(@obst_cmp_attr, "static int cmp_attr_$op(const ir_node *a, const ir_node *b) {\n");
Matthias Braun's avatar
Matthias Braun committed
569
		if($cmpcode =~ m/attr_a/) {
570
			push(@obst_cmp_attr, "\tconst ${attr_type} *attr_a = get_irn_generic_attr_const(a);\n");
571
572
		} else {
			push(@obst_cmp_attr, "\t(void) a;\n");
Matthias Braun's avatar
Matthias Braun committed
573
574
		}
		if($cmpcode =~ m/attr_b/) {
575
			push(@obst_cmp_attr, "\tconst ${attr_type} *attr_b = get_irn_generic_attr_const(b);\n");
576
577
		} else {
			push(@obst_cmp_attr, "\t(void) b;\n");
578
		}
Matthias Braun's avatar
Matthias Braun committed
579
		push(@obst_cmp_attr, "\t${cmpcode}\n");
Christian Würdig's avatar
Christian Würdig committed
580
581
		push(@obst_cmp_attr, "}\n\n");

Matthias Braun's avatar
Matthias Braun committed
582
		$cmp_attr_func = "cmp_attr_${op}";
583
584
	} elsif ($attr_type eq "") {
		$cmp_attr_func = "NULL";
585
586
587
588
	} else {
		if(defined($compare_attr{${attr_type}})) {
			$cmp_attr_func = $compare_attr{${attr_type}};
		} else {
589
			die "Fatal error: No compare function defined for ${attr_type} attributes.";
590
		}
Christian Würdig's avatar
Christian Würdig committed
591
592
	}

593
594
595
	my %constructors;
	if (exists($n{constructors})) {
		%constructors = %{ $n{constructors} };
596
	} else {
597
598
599
600
601
602
603
		# Create 1 default constructor
		my %constructor = ();
		foreach my $a ("comment", "ins", "outs", "args", "attr", "units",
				"reg_req", "init_attr", "irn_flags", "mode", "arity",
				"out_arity", "custominit") {
			if (defined($n{$a})) {
				$constructor{$a} = $n{$a};
Christian Würdig's avatar
Christian Würdig committed
604
605
			}
		}
606
607
		%constructors = ( "" => \%constructor );
	}
608

609
610
611
612
613
614
615
	foreach my $constr (keys(%constructors)) {
		my %cstr = %{ $constructors{$constr} };
		# Copy some values from outer node if they don't exists in the constr
		foreach my $a ("ins", "outs", "irn_flags", "mode", "args", "attr",
		               "custominit") {
			if (!defined($cstr{$a}) && defined($n{$a})) {
				$cstr{$a} = $n{$a};
616
			}
Christian Würdig's avatar
Christian Würdig committed
617
		}
618
619
		create_constructor($orig_op, $constr, \%cstr, \%n);
	}
Christian Würdig's avatar
Christian Würdig committed
620
621

	# set default values for state and flags if not given
622
623
624
625
	$n{"state"}     = "floats" if (! exists($n{"state"}));
	$n{"op_flags"}  = ["none"] if (! exists($n{"op_flags"}));
	$n{"dump_func"} = "${arch}_dump_node" if (!exists($n{"dump_func"}));
	my $dump_func = $n{"dump_func"};
Christian Würdig's avatar
Christian Würdig committed
626

627
	my %known_flags = map { $_ => 1 } (
628
		"none", "commutative", "cfopcode", "unknown_jump", "fragile",
629
630
		"forking", "highlevel", "constlike", "keep", "start_block",
		"uses_memory", "dump_noblock", "cse_neutral"
631
	);
Matthias Braun's avatar
Matthias Braun committed
632
	my $is_fragile = 0;
633
634
635
636
	foreach my $flag (@{$n{"op_flags"}}) {
		if (not defined($known_flags{$flag})) {
			print STDERR "WARNING: Flag '$flag' in opcode $op is unknown\n";
		}
Matthias Braun's avatar
Matthias Braun committed
637
638
639
		if ($flag eq "fragile") {
			$is_fragile = 1;
		}
640
641
642
643
	}
	my @mapped = map { "irop_flag_$_" } @{$n{"op_flags"}};
	my $op_flags = join('|', @mapped);

644
645
646
647
648
	my $attr_size = "0";
	if ($attr_type ne "") {
		$attr_size = "sizeof(${attr_type})"
	}

649
	$n_opcodes++;
Matthias Braun's avatar
Matthias Braun committed
650
	$temp  = "\top = new_ir_op(cur_opcode + iro_$op, \"$op\", op_pin_state_".$n{"state"}.", $op_flags";
651
	$temp .= ", ".translate_arity($arity).", 0, ${attr_size});\n";
Christian Würdig's avatar
Christian Würdig committed
652
	push(@obst_new_irop, $temp);
653
654
655
656
657
658
659
	push(@obst_new_irop, "\top->ops.be_ops        = be_ops;\n");
	push(@obst_new_irop, "\top->ops.dump_node     = ${dump_func};\n");
	if (defined($cmp_attr_func)) {
		push(@obst_new_irop, "\top->ops.node_cmp_attr = ${cmp_attr_func};\n");
	}
	my $copy_attr_func = $copy_attr{$attr_type};
	if (!defined($copy_attr_func)) {
660
661
		# don't set a copy_attr function if the node has no additional attributes.
		if ($attr_type ne "") {
662
663
664
665
666
667
668
669
670
671
			$copy_attr_func = $default_copy_attr;
		}
	}
	if (defined($copy_attr_func)) {
		push(@obst_new_irop, "\top->ops.copy_attr     = ${copy_attr_func};\n");
	}
	if (defined($hash_func)) {
		push(@obst_new_irop, "\top->ops.hash          = ${hash_func};\n");
	}

Matthias Braun's avatar
Matthias Braun committed
672
	if ($is_fragile) {
Matthias Braun's avatar
Matthias Braun committed
673
674
675
676
677
678
		push(@obst_new_irop, "\tir_op_set_memory_index(op, n_${op}_mem);\n");
		push(@obst_new_irop, "\tir_op_set_fragile_indices(op, pn_${op}_X_regular, pn_${op}_X_except);\n");
	}
	push(@obst_new_irop, "\tset_op_tag(op, $arch\_op_tag);\n");
	if(defined($n{op_attr_init})) {
		push(@obst_new_irop, "\t".$n{op_attr_init}."\n");
679
	}
Matthias Braun's avatar
Matthias Braun committed
680
	push(@obst_new_irop, "\top_${op} = op;\n");
681

Matthias Braun's avatar
Matthias Braun committed
682
683
	push(@obst_free_irop, "\tfree_ir_op(op_$op); op_$op = NULL;\n");

684
	push(@obst_enum_op, "\tiro_$op,\n");
Christian Würdig's avatar
Christian Würdig committed
685

686
	$obst_header .= "\n";
687
}
688
689
push(@obst_enum_op, "\tiro_$arch\_last_generated,\n");
push(@obst_enum_op, "\tiro_$arch\_last = iro_$arch\_last_generated");
690
691
push(@obst_enum_op, " + $additional_opcodes") if (defined($additional_opcodes));
push(@obst_enum_op, "\n} $arch\_opcodes;\n\n");
692
693
694

# emit the code

695
open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n");
696

697
698
print OUT "#include \"gen_$arch\_regalloc_if.h\"\n";
print OUT "#include \"irverify_t.h\"\n";
699
print OUT "#include \"fourcc.h\"\n";
700
print OUT "\n";
Christian Würdig's avatar
Christian Würdig committed
701
702
print OUT @obst_cmp_attr;
print OUT "\n";
703
704
705
706
print OUT @obst_opvar;
print OUT "\n";
print OUT @obst_get_opvar;
print OUT "\n";
707

708
print OUT<<EOF;
709

710
711
static int $arch\_opcode_start = -1;
static int $arch\_opcode_end   = -1;
712

713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
EOF

# build the FOURCC arguments from $arch

my ($a, $b, $c, $d) = ('\0', '\0', '\0', '\0');

if (length($arch) >= 1) {
	$a = uc(substr($arch, 0, 1));
}

if (length($arch) >= 2) {
	$b = uc(substr($arch, 1, 1));
}

if (length($arch) >= 3) {
	$c = uc(substr($arch, 2, 1));
}

if (length($arch) >= 4) {
	$d = uc(substr($arch, 3, 1));
}

print OUT<<ENDOFISIRN;

Michael Beck's avatar
Michael Beck committed
737
/** A tag for the $arch opcodes. Note that the address is used as a tag value, NOT the FOURCC code. */
738
#define $arch\_op_tag FOURCC('$a', '$b', '$c', '$d')
Michael Beck's avatar
Michael Beck committed
739

740
741
/** Return the opcode number of the first $arch opcode. */
int get_$arch\_opcode_first(void) {
742
	return $arch\_opcode_start;
743
744
}

745
746
/** Return the opcode number of the last $arch opcode + 1. */
int get_$arch\_opcode_last(void) {
747
	return $arch\_opcode_end;
748
749
}

Michael Beck's avatar
Michael Beck committed
750
751
/** Return 1 if the given opcode is a $arch machine op, 0 otherwise */
int is_$arch\_op(const ir_op *op) {
752
	return get_op_tag(op) == $arch\_op_tag;
Michael Beck's avatar
Michael Beck committed
753
754
}

755
/** Return 1 if the given node is a $arch machine node, 0 otherwise */
756
int is_$arch\_irn(const ir_node *node) {
Michael Beck's avatar
Michael Beck committed
757
	return is_$arch\_op(get_irn_op(node));
758
759
}

760
int get_$arch\_irn_opcode(const ir_node *node) {
761
762
763
	if (is_$arch\_irn(node))
		return get_irn_opcode(node) - $arch\_opcode_start;
	return -1;
764
765
}

766
767
ENDOFISIRN

768
769
770
771
print OUT <<END;
#ifdef BIT
#undef BIT
#endif
772
#define BIT(x)  (1 << (x))
773
774
775
776
777
778
779
780
781

END

print OUT @obst_limit_func;
print OUT "\n";

print OUT @obst_reg_reqs;
print OUT "\n";

782
print OUT<<ENDOFMAIN;
783
784
$obst_constructor

785
/**
786
 * Creates the $arch specific Firm machine operations
787
788
 * needed for the assembler irgs.
 */
Matthias Braun's avatar
Matthias Braun committed
789
790
void $arch\_create_opcodes(const arch_irn_ops_t *be_ops)
{
791
792
	ir_op *op;
	int    cur_opcode = get_next_ir_opcodes(iro_$arch\_last);
793

794
	$arch\_opcode_start = cur_opcode;
795
796
797
ENDOFMAIN

print OUT @obst_new_irop;
798
print OUT "\n";
799
800
print OUT "\t$arch\_register_additional_opcodes(cur_opcode);\n" if (defined($additional_opcodes));
print OUT "\t$arch\_opcode_end = cur_opcode + iro_$arch\_last";
801
802
print OUT " + $additional_opcodes" if (defined($additional_opcodes));
print OUT ";\n";
Matthias Braun's avatar
Matthias Braun committed
803
804
805
806
807
808
809
810
811
812
813
814
print OUT <<ENDOFMAIN;
}

void $arch\_free_opcodes(void)
{
ENDOFMAIN

print OUT @obst_free_irop;

print OUT <<ENDOFMAIN;
}
ENDOFMAIN
815
816
817

close(OUT);

818
open(OUT, ">$target_h") || die("Fatal error: Could not open $target_h, reason: $!\n");
819

820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
my $creation_time = localtime(time());
my $tmp = uc($arch);

print OUT<<EOF;
/**
 * \@file
 * \@brief Function prototypes for the new opcode functions.
 * \@note  DO NOT EDIT THIS FILE, your changes will be lost.
 *        Edit $specfile instead.
 *        created by: $0 $specfile $target_dir
 * \@date  $creation_time
 */
#ifndef FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
#define FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H

EOF

837
print OUT @obst_enum_op;
838
print OUT <<EOF;
839
int is_${arch}_irn(const ir_node *node);
840
int is_${arch}_op(const ir_op *op);
841
842
843
844
845
846
847

int get_${arch}_opcode_first(void);
int get_${arch}_opcode_last(void);
int get_${arch}_irn_opcode(const ir_node *node);
${obst_header}
${obst_proj}

848
849
#endif
EOF
850
851

close(OUT);
852
853
854
855
856

###
# Translates numeric arity into string constant.
###
sub translate_arity {
Christian Würdig's avatar
Christian Würdig committed
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
	my $arity = shift;

	if ($arity =~ /^\d+$/) {
		if    ($arity == 0) {
			return "oparity_zero";
		}
		elsif ($arity == 1) {
			return "oparity_unary";
		}
		elsif ($arity == 2) {
			return "oparity_binary";
		}
		elsif ($arity == 3) {
			return "oparity_trinary";
		}
		else {
873
			return "oparity_any";
Christian Würdig's avatar
Christian Würdig committed
874
		}
875
876
877
878
879
	} elsif ($arity == $ARITY_VARIABLE) {
		return "oparity_variable";
	} elsif ($arity == $ARITY_DYNAMIC) {
		return "oparity_dynamic";
	} else {
880
		die "Fatal error: Unknown arity $arity";
Christian Würdig's avatar
Christian Würdig committed
881
	}
882
}
883

884
sub mangle_requirements {
885
886
	my $reqs  = shift;
	my $class = shift;
887
	my $flags = shift;
888
889
890
891
892
893
894
895

	my @alternatives = split(/ /, $reqs);
	for(my $idx = 0; $idx < scalar(@alternatives); $idx++) {
		$alternatives[$idx] =~ s/!/not_/g;
	}

	@alternatives = sort @alternatives;

896
	my $name = $class."_".join('_', @alternatives);
897
898
899
900
	if (defined($flags)) {
		$flags =~ s/\|/_/g;
		$name .= "_$flags";
	}
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926

	return $name;
}

###
# Determines whether $name is a specified register class or not.
# @return 1 if name is register class, 0 otherwise
###
sub is_reg_class {
    my $name = shift;
    return 1 if exists($reg_classes{"$name"});
    return 0;
}

###
# Returns the register class for a given register.
# @return class or undef
###
sub get_reg_class {
    my $reg = shift;
    $reg = substr($reg, 1) if ($reg =~ /!.*/);
    return $reg2class{"$reg"}{"class"} if (exists($reg2class{"$reg"}));
    return undef;
}

###
927
# Returns the index of a given register within its register class.
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
# @return index or undef
###
sub get_reg_index {
    my $reg = shift;
    return $reg2class{"$reg"}{"index"} if (exists($reg2class{"$reg"}));
    return undef;
}

###
# Remember the register class for each index in the given requirements.
# We need this information for requirements like "in_sX" or "out_dX"
# @return array of classes corresponding to the requirement for each index
###
sub build_inout_idx_class {
	my $n     = shift;
	my $op    = shift;
	my $is_in = shift;
	my @idx_class;

	my $inout = ($is_in ? "in" : "out");

	if (exists($n->{"reg_req"}{"$inout"})) {
		my @reqs = @{ $n->{"reg_req"}{"$inout"} };

		for (my $idx = 0; $idx <= $#reqs; $idx++) {
			my $class = undef;
954
			my ($req,) = split(/:/, $reqs[$idx]);
955

956
			if ($req eq "none") {
957
				$class = "none";
958
959
			} elsif (is_reg_class($req)) {
				$class = $req;
960
			} else {
961
				my @regs = split(/ /, $req);
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
GET_CLASS:		foreach my $reg (@regs) {
					if ($reg =~ /!?(in|out)\_r\d+/ || $reg =~ /!in/) {
						$class = "UNKNOWN_CLASS";
					} else {
						$class = get_reg_class($reg);
						if (!defined $class) {
							die("Fatal error: Could not get ".uc($inout)." register class for '$op' pos $idx (reg $reg) ... exiting.\n");
						} else {
							last GET_CLASS;
						} # !defined class
					} # if (reg =~ ...
				} # foreach
			} # if

			push(@idx_class, $class);
		} # for
	} # if

	return @idx_class;
}

###
# Generates the function for a given $op and a given IN-index
# which returns a subset of possible register from a register class
# @return classname from which the subset is derived or undef and
#         pos which corresponds to in/out reference position or undef
###
sub build_subset_class_func {
	my $neg           = undef;
	my $class         = undef;
	my $has_limit     = 0;
	my $limit_name;
994
995
	my $same_pos      = 0;
	my $different_pos = 0;
996
997
998
999
1000
	my $temp;
	my @obst_init;
	my @obst_limits;
	my @obst_ignore;
	my @limit_array;
For faster browsing, not all history is shown. View entire blame