generate_new_opcodes.pl 30 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
# 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];

our $arch;
our %nodes;
35
our $default_attr_type;
36
our $default_cmp_attr;
37
our $default_copy_attr;
38
our %init_attr;
39
our $custom_init_attr_func;
40
our %compare_attr;
41
our %copy_attr;
42
our %reg_classes;
43
our %custom_irn_flags;
44
45
46
47
48
49
50

# include spec file

my $return;

no strict "subs";
unless ($return = do $specfile) {
51
52
53
	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;
54
55
56
}
use strict "subs";

57
my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
Christian Würdig's avatar
Christian Würdig committed
58
my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
59

60
61
62
if(!defined($default_attr_type)) {
	$default_attr_type = "${arch}_attr_t";
}
Matthias Braun's avatar
Matthias Braun committed
63
if(! %init_attr) {
64
	%init_attr = (
65
		"$default_attr_type" => "\tinit_${arch}_attributes(res, irn_flags_, in_reqs, n_res);",
66
67
	);
}
68
69
70
if(!defined($default_cmp_attr)) {
	$default_cmp_attr = "${arch}_compare_attr";
}
Matthias Braun's avatar
Matthias Braun committed
71
if(! %compare_attr) {
72
73
74
75
	%compare_attr = (
		"${default_attr_type}" => "${default_cmp_attr}",
	);
}
76

77
78
# create c code file from specs

79
80
81
82
83
84
85
86
87
88
89
my $obst_limit_func  = ""; #
my $obst_reg_reqs    = ""; #
my $obst_opvar       = ""; # buffer for the "ir_op *op_<arch>_<op-name> = NULL;" statements
my $obst_get_opvar   = ""; # buffer for the get_op_<arch>_<op-name>() functions
my $obst_constructor = ""; # buffer for node constructor functions
my $obst_new_irop    = ""; # buffer for the new_ir_op calls
my $obst_free_irop   = ""; # buffer for free_ir_op calls
my $obst_enum_op     = ""; # buffer for creating the <arch>_opcode enum
my $obst_header      = ""; # buffer for function prototypes
my $obst_cmp_attr    = ""; # buffer for the compare attribute functions
my $obst_proj        = ""; # buffer for the pn_ numbers
90
91
my $orig_op;
my $arity;
Christian Würdig's avatar
Christian Würdig committed
92
my $cmp_attr_func;
93
my $temp;
94
my $n_opcodes = 0;    # number of opcodes
95
96
my $ARITY_VARIABLE = -1;
my $ARITY_DYNAMIC  = -2;
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
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;
}

123

124
$obst_header .= "void ${arch}_create_opcodes(const arch_irn_ops_t *be_ops);\n";
Matthias Braun's avatar
Matthias Braun committed
125
$obst_header .= "void ${arch}_free_opcodes(void);\n";
126

127
128
129
130
131
132
133
134
135
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
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 = $ARITY_DYNAMIC;
	}
173
174
175
	if ($out_arity != 0 && $out_arity != 1 && !defined($known_mode)) {
		$known_mode = "mode_T";
	}
176
177
178
179
180
181
182
183
184
185
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

	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
	$temp = <<EOF;
236
237
238
	ir_graph         *irg        = get_irn_irg(block);
	ir_op            *op         = op_${arch}_${op};
	arch_irn_flags_t  irn_flags_ = arch_irn_flags_none;
239
	ir_node          *res;
240
	backend_info_t   *info;
241
242
243
244
245
246
247
248
249
250
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
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);
				$set_out_reqs .= <<EOF;
333
	info->out_infos[${idx}].req = &${reqstruct};
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
EOF
			}
		} else {
			if($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";
368
369
370
371
372
373
		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",
374
			"not_scheduled"    => "arch_irn_flags_not_scheduled",
375
		);
Matthias Braun's avatar
Matthias Braun committed
376
		if (%custom_irn_flags) {
377
378
			%known_irn_flags = (%known_irn_flags, %custom_irn_flags);
		}
379
380
381
		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";
382
			} else {
383
				$temp .= "\tirn_flags_ |= " . $known_irn_flags{$flag} . ";\n";
384
385
386
387
388
389
			}
		}
		$temp .= "\n";
	}

	# lookup init function
390
	my $attr_init_code = "(void)in;(void)irn_flags_;(void)in_reqs;(void)n_res;";
391
392
393
394
395
	if ($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}'";
		}
396
397
398
399
400
401
402
403
404
405
406
407
	}
	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);
408
	res = new_ir_node(dbgi, irg, block, op, mode, arity, in);
409
410
411
412
413

	/* init node attributes */
	${attr_init_code}
	${custominit}
	info = be_get_info(res);
414
	(void) info; /* avoid potential warning */
415
${set_out_reqs}
416
417
418
419

EOF

	if (exists($n->{"init_attr"})) {
420
		$temp .= "\tattr = (${attr_type}*)get_irn_generic_attr(res);\n";
421
		$temp .= "\t(void) attr; /* avoid potential warning */\n";
422
423
424
425
426
427
		$temp .= "\t".$n->{"init_attr"}."\n";
	}

	$temp .= <<EOF;
	/* optimize node */
	res = optimize_node(res);
428
	irn_verify_irg(res, irg);
429
430
431
432
433
434
435
436
437
438

	return res;
EOF

	$obst_constructor .= $temp;

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

439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
my @node_attrs = (
	"args",
	"arity",
	"attr",
	"comment",
	"custominit",
	"init_attr",
	"ins",
	"irn_flags",
	"mode",
	"out_arity",
	"outs",
	"reg_req",
);

454
$obst_enum_op .= "typedef enum ${arch}_opcodes {\n";
455
foreach my $op (keys(%nodes)) {
456
	my %n        = %{ $nodes{"$op"} };
457
	my $known_mode;
458
	my $num_outs = 0;
459
	my $out_arity;
460
	my @out_flags;
Christian Würdig's avatar
Christian Würdig committed
461

462
463
464
465
466
	# determine arity
	$arity = 0;
	if(exists($n{"arity"})) {
		$arity = $n{"arity"};
	} elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
467
		$arity = scalar(@{ $n{"reg_req"}{"in"} });
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
	} elsif (exists($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;
490
491
	}

Christian Würdig's avatar
Christian Würdig committed
492
493
	$orig_op = $op;
	$op      = $arch."_".$op;
494
	$temp    = "";
Christian Würdig's avatar
Christian Würdig committed
495

496
	# define proj numbers and in numbers
497
498
	if (exists($n{"outs"})) {
		undef my @outs;
499

500
		@outs = @{ $n{"outs"} };
501
		if($out_arity >= 0 && scalar(@outs) != $out_arity) {
502
			die "Fatal error: Op ${op} has different number of outs and out_arity\n";
503
504
		}

Christian Würdig's avatar
Christian Würdig committed
505
		$num_outs = $#outs + 1;
506

507
508
509
510
511
512
513
514
515
516
		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";
517
518
			}

519
520
			$obst_proj .= "};\n";
		}
521
		# outs have names, it must be a mode_T node
522
523
524
		if (!defined($n{mode})) {
			$n{mode} = "mode_T";
		}
525
	}
526
527
528
529
	if (exists($n{"ins"})) {
		undef my @ins;

		@ins = @{ $n{"ins"} };
530
		if($arity >= 0 && scalar(@ins) != $arity) {
531
			die "Fatal error: Op ${op} has different number of ins and arity\n";
532
		}
533

534
535
536
537
538
539
		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";
540
		}
541
542
	}

543
	# Create opcode
544
	$obst_opvar     .= "ir_op *op_$op = NULL;\n";
545
546
547
	$obst_get_opvar .= "bool is_$op(const ir_node *n) {\n";
	$obst_get_opvar .= "\treturn get_irn_op(n) == op_$op;\n";
	$obst_get_opvar .= "}\n\n";
Christian Würdig's avatar
Christian Würdig committed
548

549
550
	$obst_header .= <<EOF;
extern ir_op *op_${op};
551
bool is_${op}(const ir_node *n);
552
EOF
Christian Würdig's avatar
Christian Würdig committed
553

554
	my $attr_type= $n{attr_type};
555
556
	if(!defined($attr_type)) {
		$attr_type = $default_attr_type;
557
		$n{attr_type} = $attr_type;
558
559
	}

560
561
562
563
564
565
	# determine hash function
	my $hash_func;
	if (exists($n{"hash_func"})) {
		$hash_func = $n{"hash_func"};
	}

566
	# determine compare function
Matthias Braun's avatar
Matthias Braun committed
567
568
569
570
	my $cmp_attr_func;
	if (exists($n{"cmp_attr"})) {
		my $cmpcode = $n{"cmp_attr"};

571
		$obst_cmp_attr .= "static int cmp_attr_$op(const ir_node *a, const ir_node *b) {\n";
Matthias Braun's avatar
Matthias Braun committed
572
		if($cmpcode =~ m/attr_a/) {
573
			$obst_cmp_attr .= "\tconst ${attr_type} *attr_a = get_irn_generic_attr_const(a);\n";
574
		} else {
575
			$obst_cmp_attr .= "\t(void) a;\n";
Matthias Braun's avatar
Matthias Braun committed
576
577
		}
		if($cmpcode =~ m/attr_b/) {
578
			$obst_cmp_attr .= "\tconst ${attr_type} *attr_b = get_irn_generic_attr_const(b);\n";
579
		} else {
580
			$obst_cmp_attr .= "\t(void) b;\n";
581
		}
582
583
		$obst_cmp_attr .= "\t${cmpcode}\n";
		$obst_cmp_attr .= "}\n\n";
Christian Würdig's avatar
Christian Würdig committed
584

Matthias Braun's avatar
Matthias Braun committed
585
		$cmp_attr_func = "cmp_attr_${op}";
586
587
	} elsif ($attr_type eq "") {
		$cmp_attr_func = "NULL";
588
589
590
591
	} else {
		if(defined($compare_attr{${attr_type}})) {
			$cmp_attr_func = $compare_attr{${attr_type}};
		} else {
592
			die "Fatal error: No compare function defined for ${attr_type} attributes.";
593
		}
Christian Würdig's avatar
Christian Würdig committed
594
595
	}

596
597
598
	my %constructors;
	if (exists($n{constructors})) {
		%constructors = %{ $n{constructors} };
599
	} else {
600
601
		# Create 1 default constructor
		my %constructor = ();
602
		foreach my $a (@node_attrs) {
603
604
			if (defined($n{$a})) {
				$constructor{$a} = $n{$a};
Christian Würdig's avatar
Christian Würdig committed
605
606
			}
		}
607
608
		%constructors = ( "" => \%constructor );
	}
609

610
611
612
	foreach my $constr (keys(%constructors)) {
		my %cstr = %{ $constructors{$constr} };
		# Copy some values from outer node if they don't exists in the constr
613
		foreach my $a (@node_attrs) {
614
615
			if (!defined($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).", -1, ${attr_size});\n";
652
653
654
	$obst_new_irop .= $temp;
	$obst_new_irop .= "\top->ops.be_ops        = be_ops;\n";
	$obst_new_irop .= "\top->ops.dump_node     = ${dump_func};\n";
655
	if (defined($cmp_attr_func)) {
656
		$obst_new_irop .= "\top->ops.node_cmp_attr = ${cmp_attr_func};\n";
657
658
659
	}
	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
			$copy_attr_func = $default_copy_attr;
		}
	}
	if (defined($copy_attr_func)) {
666
		$obst_new_irop .= "\top->ops.copy_attr     = ${copy_attr_func};\n";
667
668
	}
	if (defined($hash_func)) {
669
		$obst_new_irop .= "\top->ops.hash          = ${hash_func};\n";
670
671
	}

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

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

684
	$obst_enum_op .= "\tiro_$op,\n";
Christian Würdig's avatar
Christian Würdig committed
685

686
	$obst_header .= "\n";
687
}
688
689
$obst_enum_op .= "\tiro_$arch\_last\n";
$obst_enum_op .= "} $arch\_opcodes;\n\n";
690
691
692

# emit the code

693
open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n");
694

695
print OUT<<EOF;
696
697
698
#include "gen_$arch\_regalloc_if.h"
#include "irverify_t.h"
#include "fourcc.h"
699
#include "irgopt.h"
700
701
702
703

$obst_cmp_attr
$obst_opvar
$obst_get_opvar
704

705
706
static int $arch\_opcode_start = -1;
static int $arch\_opcode_end   = -1;
707

708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
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));
}

730
print OUT <<END;
731

Michael Beck's avatar
Michael Beck committed
732
/** A tag for the $arch opcodes. Note that the address is used as a tag value, NOT the FOURCC code. */
733
#define $arch\_op_tag FOURCC('$a', '$b', '$c', '$d')
Michael Beck's avatar
Michael Beck committed
734

735
736
/** Return the opcode number of the first $arch opcode. */
int get_$arch\_opcode_first(void) {
737
	return $arch\_opcode_start;
738
739
}

740
741
/** Return the opcode number of the last $arch opcode + 1. */
int get_$arch\_opcode_last(void) {
742
	return $arch\_opcode_end;
743
744
}

Michael Beck's avatar
Michael Beck committed
745
746
/** Return 1 if the given opcode is a $arch machine op, 0 otherwise */
int is_$arch\_op(const ir_op *op) {
747
	return get_op_tag(op) == $arch\_op_tag;
Michael Beck's avatar
Michael Beck committed
748
749
}

750
/** Return 1 if the given node is a $arch machine node, 0 otherwise */
751
int is_$arch\_irn(const ir_node *node) {
Michael Beck's avatar
Michael Beck committed
752
	return is_$arch\_op(get_irn_op(node));
753
754
}

755
int get_$arch\_irn_opcode(const ir_node *node) {
756
757
758
	if (is_$arch\_irn(node))
		return get_irn_opcode(node) - $arch\_opcode_start;
	return -1;
759
760
}

761
762
763
#ifdef BIT
#undef BIT
#endif
764
#define BIT(x)  (1 << (x))
765

766
767
$obst_limit_func
$obst_reg_reqs
768
769
$obst_constructor

770
/**
771
 * Creates the $arch specific Firm machine operations
772
773
 * needed for the assembler irgs.
 */
Matthias Braun's avatar
Matthias Braun committed
774
775
void $arch\_create_opcodes(const arch_irn_ops_t *be_ops)
{
776
777
	ir_op *op;
	int    cur_opcode = get_next_ir_opcodes(iro_$arch\_last);
778

779
	$arch\_opcode_start = cur_opcode;
780
781
$obst_new_irop
	$arch\_opcode_end = cur_opcode + iro_$arch\_last;
Matthias Braun's avatar
Matthias Braun committed
782
783
784
785
}

void $arch\_free_opcodes(void)
{
786
$obst_free_irop
Matthias Braun's avatar
Matthias Braun committed
787
}
788
END
789
790
791

close(OUT);

792
open(OUT, ">$target_h") || die("Fatal error: Could not open $target_h, reason: $!\n");
793

794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
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

809
$obst_enum_op
810
int is_${arch}_irn(const ir_node *node);
811
int is_${arch}_op(const ir_op *op);
812
813
814
815
816
817
818

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}

819
820
#endif
EOF
821
822

close(OUT);
823
824
825
826
827

###
# Translates numeric arity into string constant.
###
sub translate_arity {
Christian Würdig's avatar
Christian Würdig committed
828
829
830
	my $arity = shift;

	if ($arity =~ /^\d+$/) {
831
		return "oparity_any";
832
833
834
835
836
	} elsif ($arity == $ARITY_VARIABLE) {
		return "oparity_variable";
	} elsif ($arity == $ARITY_DYNAMIC) {
		return "oparity_dynamic";
	} else {
837
		die "Fatal error: Unknown arity $arity";
Christian Würdig's avatar
Christian Würdig committed
838
	}
839
}
840

841
sub mangle_requirements {
842
843
	my $reqs  = shift;
	my $class = shift;
844
	my $flags = shift;
845
846
847
848
849
850
851
852

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

	@alternatives = sort @alternatives;

853
	my $name = $class."_".join('_', @alternatives);
854
855
856
857
	if (defined($flags)) {
		$flags =~ s/\|/_/g;
		$name .= "_$flags";
	}
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883

	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;
}

###
884
# Returns the index of a given register within its register class.
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
# @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 $class = undef;
911
			my ($req,) = split(/:/, $reqs[$idx]);
912

913
			if ($req eq "none") {
914
				$class = "none";
915
916
			} elsif (is_reg_class($req)) {
				$class = $req;
917
			} else {
918
				my @regs = split(/ /, $req);
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
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;
951
952
	my $same_pos      = 0;
	my $different_pos = 0;
953
954
955
956
957
958
959
960
961
962
963
964
965
	my $temp;
	my @obst_init;
	my @obst_limits;
	my @obst_ignore;
	my @limit_array;
	my $limit_reqs;   #used for name mangling

	# build function header
	my $node  = shift;
	my $op    = shift;
	my $idx   = shift;
	my $is_in = shift;
	my @regs  = split(/ /, shift);
966
	my $flags = shift;
967
968
969
970
971

	my @idx_class = build_inout_idx_class($node, $op, !$is_in);

	# set/unset registers
CHECK_REQS: foreach (@regs) {
972
		if (!$is_in && /(!)?in_r(\d+)/) {
973
974
975
976
977
978
979
980
			my $bit_pos = 1 << ($2 - 1);
			if ($different_pos & $bit_pos) {
				if ($1) {
					print STDERR "duplicate !in constraint\n";
				} else {
					print STDERR "conflicting !in and in constraints\n";
				}
				return (undef, undef, undef, undef);
981
982
			}

983
984
985
			if ($same_pos & $bit_pos) {
				if ($1) {
					print STDERR "conflicting !in and in constraints\n";
986
				} else {
987
					print STDERR "duplicate in constraint\n";
988
				}
989
990
991
992
993
994
995
				return (undef, undef, undef, undef);
			}

			if ($1) {
				$different_pos |= $bit_pos;
			} else {
				$same_pos      |= $bit_pos;
996
997
998
999
1000
			}

			$class = $idx_class[$2 - 1];
			next CHECK_REQS;
		}
For faster browsing, not all history is shown. View entire blame