4 # Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
6 # This file is part of libFirm.
8 # This file may be distributed and/or modified under the terms of the
9 # GNU General Public License version 2 as published by the Free Software
10 # Foundation and appearing in the file LICENSE.GPL included in the
11 # packaging of this file.
13 # Licensees holding valid libFirm Professional Edition licenses may use
14 # this file in accordance with the libFirm Commercial License.
15 # Agreement provided with the Software.
17 # This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
18 # WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 # This script generates the C code which creates the irop's and
23 # their coresponding node constructors for all operations in a given spec
24 # so they can be used as normal firm nodes.
25 # Creation: 2005/10/19
31 my $specfile = $ARGV[0];
32 my $target_dir = $ARGV[1];
38 our $additional_opcodes;
42 our $default_op_attr_type;
43 our $default_attr_type;
44 our $default_cmp_attr;
45 our $default_copy_attr;
47 our $custom_init_attr_func;
57 unless ($return = do $specfile) {
58 die "Fatal error: couldn't parse $specfile: $@" if $@;
59 die "Fatal error: couldn't do $specfile: $!" unless defined $return;
60 die "Fatal error: couldn't run $specfile" unless $return;
64 my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
65 my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
67 if(!defined($default_attr_type)) {
68 $default_attr_type = "${arch}_attr_t";
70 if(!defined(%init_attr)) {
72 "$default_attr_type" => "\tinit_${arch}_attributes(res, flags, in_reqs, exec_units, n_res);",
75 if(!defined($default_cmp_attr)) {
76 $default_cmp_attr = "${arch}_compare_attr";
78 if(!defined(%compare_attr)) {
80 "${default_attr_type}" => "${default_cmp_attr}",
84 # Operands are really just nodes with some special constraints, we check
85 # these and create new entries in the nodes hashmap
86 foreach my $op (keys(%operands)) {
87 my %operand = %{ $operands{"$op"} };
91 if(defined($operand{op_flags})) { die "Fatal error: operands can't have op_flags ($op)"; }
92 if(defined($operand{cmp_attr})) { die "Fatal error: cmp_attr not allowed for operands ($op)"; }
93 if(defined($operand{mode})) { die "Operand must not have a mode defined ($op)"; }
94 if(defined($operand{out_arity})) { die "operand must not have out_arity defined ($op)"; }
95 if(defined($nodes{$op})) { die "$op defined as operand and as node"; };
98 foreach my $flag (keys(%operand)) {
99 $op_node{$flag} = $operand{$flag};
101 $op_node{op_flags} = "O";
102 $op_node{cmp_attr} = 'return 1;';
103 $op_node{mode} = 'mode_ANY';
105 $nodes{$op} = \%op_node;
108 #print Dumper(%nodes);
109 #print Dumper(%operands);
111 # create c code file from specs
115 my @obst_opvar; # stack for the "ir_op *op_<arch>_<op-name> = NULL;" statements
116 my @obst_get_opvar; # stack for the get_op_<arch>_<op-name>() functions
117 my $obst_constructor; # stack for node constructor functions
118 my @obst_new_irop; # stack for the new_ir_op calls
119 my @obst_enum_op; # stack for creating the <arch>_opcode enum
120 my $obst_header; # stack for function prototypes
121 my @obst_is_archirn; # stack for the is_$arch_irn() function
122 my @obst_cmp_attr; # stack for the compare attribute functions
123 my $obst_proj = ""; # stack for the pn_ numbers
128 my $n_opcodes = 0; # number of opcodes
129 my $ARITY_VARIABLE = -1;
130 my $ARITY_DYNAMIC = -2;
131 my %requirements = ();
132 my %limit_bitsets = ();
134 my %regclass2len = ();
136 # build register->class hashes
137 foreach my $class_name (keys(%reg_classes)) {
138 my @class = @{ $reg_classes{"$class_name"} };
139 my $old_classname = $class_name;
143 $class_name = $arch."_".$class_name;
147 $reg2class{$_->{name}} = {
148 "class" => $old_classname,
154 $regclass2len{$old_classname} = $idx;
158 # for registering additional opcodes
159 $n_opcodes += $additional_opcodes if (defined($additional_opcodes));
161 $obst_header .= "void ${arch}_create_opcodes(const arch_irn_ops_t *be_ops);\n";
163 sub create_constructor {
172 $suffix = "_${name}";
176 if (exists($n->{mode})) {
177 $known_mode = $n->{mode};
182 if(exists($n->{"arity"})) {
183 $arity = $n->{"arity"};
184 } elsif (exists($n->{"reg_req"}) && exists($n->{"reg_req"}{"in"})) {
185 $arity = scalar(@{ $n->{"reg_req"}{"in"} });
186 } elsif (exists($n->{"ins"})) {
187 $arity = scalar(@{ $n->{"ins"} });
189 if($arity eq "variable") {
190 $arity = $ARITY_VARIABLE;
191 } elsif($arity eq "dynamic") {
192 $arity = $ARITY_DYNAMIC;
195 # determine out arity
197 if(exists($n->{"out_arity"})) {
198 $out_arity = $n->{"out_arity"};
199 } elsif (exists($n->{"reg_req"}) && exists($n->{"reg_req"}{"out"})) {
200 $out_arity = scalar(@{ $n->{"reg_req"}{"out"} });
201 } elsif (exists($n->{"outs"})) {
202 $out_arity = scalar(@{ $n->{"outs"} });
204 if($out_arity eq "variable") {
205 $out_arity = $ARITY_VARIABLE;
206 } elsif($out_arity eq "dynamic") {
207 $out_arity = $ARITY_DYNAMIC;
209 if ($out_arity != 0 && $out_arity != 1 && !defined($known_mode)) {
210 $known_mode = "mode_T";
213 my $comment = $n->{"comment"};
214 if(!exists($n->{"comment"})) {
215 $comment = "construct ${orig_op} node";
222 $obst_constructor .= $comment;
224 # create constructor head
225 my $complete_args = "";
228 $temp = "ir_node *new_bd_${arch}_${op}${suffix}(dbg_info *dbgi, ir_node *block";
229 if (!exists($n->{"args"})) { # default args
230 if ($arity == $ARITY_VARIABLE) {
231 $complete_args = ", int arity, ir_node *in[]";
232 } elsif ($arity == $ARITY_DYNAMIC) {
235 for (my $i = 0; $i < $arity; $i++) {
236 my $opname = "op${i}";
237 if (exists($n->{"ins"})) {
238 my @ins = @{ $n->{"ins"} };
242 $complete_args .= ", ir_node *${opname}";
245 if ($out_arity == $ARITY_VARIABLE) {
246 $complete_args .= ", int n_res";
249 if (!defined($known_mode)) {
250 $complete_args .= ", ir_mode *mode";
252 } else { # user defined args
253 for my $href (@{ $n->{"args"} }) {
254 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
255 $complete_args .= ", ".$href->{"type"}.$href->{"name"};
259 # we have additional attribute arguements
260 if (exists($n->{"attr"})) {
261 $complete_args .= ", ".$n->{"attr"};
264 $temp .= "$complete_args)";
265 $obst_constructor .= "${temp}\n{\n";
267 $obst_header .= $comment;
268 $obst_header .= "${temp};\n";
270 # emit constructor code
273 ir_op *op = op_${arch}_${op};
275 backend_info_t *info;
278 if($arity == $ARITY_DYNAMIC) {
283 } elsif($arity == $ARITY_VARIABLE) {
298 if($out_arity == $ARITY_DYNAMIC) {
302 } elsif($out_arity == $ARITY_VARIABLE) {
305 int n_res = ${out_arity};
309 if (defined($known_mode)) {
311 ir_mode *mode = ${known_mode};
315 # set up static variables for cpu execution unit assigments
316 if (exists($n->{"units"})) {
317 $temp .= gen_execunit_list_initializer($n->{"units"});
320 static const be_execution_unit_t ***exec_units = NULL;
324 undef my $in_req_var;
325 undef my $out_req_var;
327 my $set_out_reqs = "";
329 # set up static variables for requirements and registers
330 if (exists($n->{"reg_req"})) {
331 my %req = %{ $n->{"reg_req"} };
335 @in = @{ $req{"in"} } if (exists($req{"in"}));
337 @out = @{ $req{"out"} } if exists(($req{"out"}));
339 for(my $idx = 0; $idx < $#in; $idx++) {
341 generate_requirements($req, $n, "${arch}_${op}", $idx, 1);
343 for(my $idx = 0; $idx < $#out; $idx++) {
344 my $req = $out[$idx];
345 generate_requirements($req, $n, "${arch}_${op}", $idx, 0);
349 if($arity >= 0 && scalar(@in) != $arity) {
350 die "Fatal error: Arity and number of in requirements don't match for ${op}\n";
353 $temp .= "\tstatic const arch_register_req_t *in_reqs[] =\n";
355 for ($idx = 0; $idx <= $#in; $idx++) {
357 my $reqstruct = generate_requirements($req, $n, "${arch}_${op}", $idx, 1);
358 $temp .= "\t\t& ${reqstruct},\n";
363 die "Fatal error: need in requirements for ${op}\n";
365 $temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n";
369 if($out_arity >= 0 && scalar(@out) != $out_arity) {
370 die "Fatal error: Out-Arity and number of out requirements don't match for ${op}\n";
373 for ($idx = 0; $idx <= $#out; $idx++) {
374 my $req = $out[$idx];
375 my $reqstruct = generate_requirements($req, $n, "${arch}_${op}", $idx, 0);
376 $set_out_reqs .= <<EOF;
377 info->out_infos[${idx}].req = &${reqstruct};
382 die "Fatal error: need out requirements for ${op}\n";
386 $temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n";
388 my $attr_type = $on->{attr_type};
389 if(exists($n->{"init_attr"})) {
390 $temp .= "\t${attr_type} *attr;\n";
396 $temp .= "\t/* construct in array */\n";
397 for (my $i = 0; $i < $arity; $i++) {
398 my $opname = "op${i}";
399 if (exists($n->{"ins"})) {
400 my @ins = @{ $n->{"ins"} };
404 $temp .= "\tin[${i}] = ${opname};\n";
410 if (exists($n->{"irn_flags"})) {
411 $temp .= "\t/* flags */\n";
412 my %known_irn_flags = map { $_ => 1 } (
413 "none", "dont_spill", "rematerializable",
414 "modify_flags", "simple_jump"
416 foreach my $flag (@{$n->{"irn_flags"}}) {
417 if (not defined($known_irn_flags{$flag})) {
418 print STDERR "WARNING: irn_flag '$flag' in opcode $op is unknown\n";
420 $temp .= "\tflags |= arch_irn_flags_$flag;\n";
425 # lookup init function
426 my $attr_init_code = $init_attr{$attr_type};
427 if(!defined($attr_init_code)) {
428 die "Fatal error: Couldn't find attribute initialisation code for type '${attr_type}'";
431 if(defined($custom_init_attr_func)) {
432 $custominit .= &$custom_init_attr_func($n, $on, "${arch}_${op}");
434 if(defined($n->{custominit})) {
435 $custominit .= $n->{custominit};
441 res = new_ir_node(dbgi, current_ir_graph, block, op, mode, arity, in);
443 /* init node attributes */
446 info = be_get_info(res);
447 (void) info; /* avoid potential warning */
452 if (exists($n->{"init_attr"})) {
453 $temp .= "\tattr = get_irn_generic_attr(res);\n";
454 $temp .= "\t".$n->{"init_attr"}."\n";
459 res = optimize_node(res);
460 irn_vrfy_irg(res, current_ir_graph);
465 $obst_constructor .= $temp;
467 # close constructor function
468 $obst_constructor .= "}\n\n";
471 push(@obst_enum_op, "typedef enum _${arch}_opcodes {\n");
472 foreach my $op (keys(%nodes)) {
473 my %n = %{ $nodes{"$op"} };
481 if(exists($n{"arity"})) {
482 $arity = $n{"arity"};
483 } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
484 $arity = scalar(@{ $n{"reg_req"}{"in"} });
485 } elsif (exists($n{"ins"})) {
486 $arity = scalar(@{ $n{"ins"} });
488 if($arity eq "variable") {
489 $arity = $ARITY_VARIABLE;
490 } elsif($arity eq "dynamic") {
491 $arity = $ARITY_DYNAMIC;
494 # determine out arity
496 if(exists($n{"out_arity"})) {
497 $out_arity = $n{"out_arity"};
498 } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"out"})) {
499 $out_arity = scalar(@{ $n{"reg_req"}{"out"} });
500 } elsif (exists($n{"outs"})) {
501 $out_arity = scalar(@{ $n{"outs"} });
503 if($out_arity eq "variable") {
504 $out_arity = $ARITY_VARIABLE;
505 } elsif($out_arity eq "dynamic") {
506 $out_arity = $ARITY_DYNAMIC;
513 # define proj numbers and in numbers
514 if (exists($n{"outs"})) {
517 @outs = @{ $n{"outs"} };
518 if($out_arity >= 0 && scalar(@outs) != $out_arity) {
519 die "Fatal error: Op ${op} has different number of outs and out_arity\n";
522 $num_outs = $#outs + 1;
524 $obst_proj .= "\nenum pn_${op} {\n";
526 for (my $idx = 0; $idx <= $#outs; $idx++) {
527 # check, if we have additional flags annotated to out
528 if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) {
529 push(@out_flags, $1);
530 $outs[$idx] =~ s/:((S|I)(\|(S|I))*)//;
532 $obst_proj .= "\tpn_${op}_".$outs[$idx]." = ${idx},\n";
535 $obst_proj .= "};\n";
536 # outs have names, it must be a mode_T node
537 if (!defined($n{mode})) {
541 if (exists($n{"ins"})) {
544 @ins = @{ $n{"ins"} };
545 if($arity >= 0 && scalar(@ins) != $arity) {
546 die "Fatal error: Op ${op} has different number of ins and arity\n";
549 $obst_proj .= "\nenum n_$op {\n";
550 for (my $idx = 0; $idx <= $#ins; $idx++) {
551 $obst_proj .= "\tn_${op}_".$ins[$idx]." = ${idx},\n";
553 $obst_proj .= "};\n";
557 push(@obst_opvar, "ir_op *op_$op = NULL;\n");
558 push(@obst_get_opvar, "ir_op *get_op_$op(void) { return op_$op; }\n");
559 push(@obst_get_opvar, "int is_$op(const ir_node *n) { return get_$arch\_irn_opcode(n) == iro_$op; }\n\n");
561 push(@obst_is_archirn, "is_$op(node)");
563 $obst_header .= <<EOF;
564 extern ir_op *op_${op};
565 ir_op *get_op_${op}(void);
566 int is_${op}(const ir_node *n);
569 my $attr_type= $n{attr_type};
570 if(!defined($attr_type)) {
571 $attr_type = $default_attr_type;
572 $n{attr_type} = $attr_type;
575 # determine hash function
577 if (exists($n{"hash_func"})) {
578 $hash_func = $n{"hash_func"};
581 # determine compare function
583 if (exists($n{"cmp_attr"})) {
584 my $cmpcode = $n{"cmp_attr"};
586 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
587 if($cmpcode =~ m/attr_a/) {
588 push(@obst_cmp_attr, "\t${attr_type} *attr_a = get_irn_generic_attr(a);\n");
590 push(@obst_cmp_attr, "\t(void) a;\n");
592 if($cmpcode =~ m/attr_b/) {
593 push(@obst_cmp_attr, "\t${attr_type} *attr_b = get_irn_generic_attr(b);\n");
595 push(@obst_cmp_attr, "\t(void) b;\n");
597 push(@obst_cmp_attr, "\t${cmpcode}\n");
598 push(@obst_cmp_attr, "}\n\n");
600 $cmp_attr_func = "cmp_attr_${op}";
602 if(defined($compare_attr{${attr_type}})) {
603 $cmp_attr_func = $compare_attr{${attr_type}};
605 die "Fatal error: No compare function defined for ${attr_type} attributes.";
610 if (exists($n{constructors})) {
611 %constructors = %{ $n{constructors} };
613 # Create 1 default constructor
614 my %constructor = ();
615 foreach my $a ("comment", "ins", "outs", "args", "attr", "units",
616 "reg_req", "init_attr", "irn_flags", "mode", "arity",
617 "out_arity", "custominit") {
618 if (defined($n{$a})) {
619 $constructor{$a} = $n{$a};
622 %constructors = ( "" => \%constructor );
625 foreach my $constr (keys(%constructors)) {
626 my %cstr = %{ $constructors{$constr} };
627 # Copy some values from outer node if they don't exists in the constr
628 foreach my $a ("ins", "outs", "irn_flags", "mode", "args", "attr",
630 if (!defined($cstr{$a}) && defined($n{$a})) {
634 create_constructor($orig_op, $constr, \%cstr, \%n);
637 # set default values for state and flags if not given
638 $n{"state"} = "floats" if (! exists($n{"state"}));
639 $n{"op_flags"} = ["none"] if (! exists($n{"op_flags"}));
641 push(@obst_new_irop, "\n\tmemset(&ops, 0, sizeof(ops));\n");
642 push(@obst_new_irop, "\tops.be_ops = be_ops;\n");
643 push(@obst_new_irop, "\tops.dump_node = $arch\_dump_node;\n");
645 if (defined($cmp_attr_func)) {
646 push(@obst_new_irop, "\tops.node_cmp_attr = ${cmp_attr_func};\n");
648 my $copy_attr_func = $copy_attr{$attr_type};
649 if (!defined($copy_attr_func)) {
650 $copy_attr_func = $default_copy_attr;
652 if (defined($copy_attr_func)) {
653 push(@obst_new_irop, "\tops.copy_attr = ${copy_attr_func};\n");
655 if (defined($hash_func)) {
656 push(@obst_new_irop, "\tops.hash = ${hash_func};\n");
659 my %known_flags = map { $_ => 1 } (
660 "none", "labeled", "commutative", "cfopcode", "op_cfopcode",
661 "fragile", "forking", "highlevel", "constlike", "always_opt",
662 "keep", "start_block", "uses_memory", "dump_noblock",
663 "dump_noinput", "machine", "machine_op", "cse_neutral"
665 foreach my $flag (@{$n{"op_flags"}}) {
666 if (not defined($known_flags{$flag})) {
667 print STDERR "WARNING: Flag '$flag' in opcode $op is unknown\n";
670 my @mapped = map { "irop_flag_$_" } @{$n{"op_flags"}};
671 my $op_flags = join('|', @mapped);
674 $temp = "\top_$op = new_ir_op(cur_opcode + iro_$op, \"$op\", op_pin_state_".$n{"state"}.", $op_flags";
675 $temp .= "|irop_flag_machine, ".translate_arity($arity).", 0, sizeof(${attr_type}), &ops);\n";
676 push(@obst_new_irop, $temp);
677 push(@obst_new_irop, "\tset_op_tag(op_$op, $arch\_op_tag);\n");
678 if(defined($default_op_attr_type)) {
679 push(@obst_new_irop, "\tattr = &attrs[iro_$op];\n");
680 if(defined($n{op_attr_init})) {
681 push(@obst_new_irop, "\t".$n{op_attr_init}."\n");
683 push(@obst_new_irop, "\tset_op_attr(op_$op, attr);\n");
686 push(@obst_enum_op, "\tiro_$op,\n");
688 $obst_header .= "\n";
690 push(@obst_enum_op, "\tiro_$arch\_last_generated,\n");
691 push(@obst_enum_op, "\tiro_$arch\_last = iro_$arch\_last_generated");
692 push(@obst_enum_op, " + $additional_opcodes") if (defined($additional_opcodes));
693 push(@obst_enum_op, "\n} $arch\_opcodes;\n\n");
697 open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n");
699 print OUT "#include \"gen_$arch\_regalloc_if.h\"\n\n";
700 print OUT @obst_cmp_attr;
702 print OUT @obst_opvar;
704 print OUT @obst_get_opvar;
709 static int $arch\_opcode_start = -1;
710 static int $arch\_opcode_end = -1;
714 # build the FOURCC arguments from $arch
716 my ($a, $b, $c, $d) = ('\0', '\0', '\0', '\0');
718 if (length($arch) >= 1) {
719 $a = uc(substr($arch, 0, 1));
722 if (length($arch) >= 2) {
723 $b = uc(substr($arch, 1, 1));
726 if (length($arch) >= 3) {
727 $c = uc(substr($arch, 2, 1));
730 if (length($arch) >= 4) {
731 $d = uc(substr($arch, 3, 1));
734 print OUT<<ENDOFISIRN;
736 /** A tag for the $arch opcodes. Note that the address is used as a tag value, NOT the FOURCC code. */
737 #define $arch\_op_tag FOURCC('$a', '$b', '$c', '$d')
739 /** Return the opcode number of the first $arch opcode. */
740 int get_$arch\_opcode_first(void) {
741 return $arch\_opcode_start;
744 /** Return the opcode number of the last $arch opcode + 1. */
745 int get_$arch\_opcode_last(void) {
746 return $arch\_opcode_end;
749 /** Return 1 if the given opcode is a $arch machine op, 0 otherwise */
750 int is_$arch\_op(const ir_op *op) {
751 return get_op_tag(op) == $arch\_op_tag;
754 /** Return 1 if the given node is a $arch machine node, 0 otherwise */
755 int is_$arch\_irn(const ir_node *node) {
756 return is_$arch\_op(get_irn_op(node));
759 int get_$arch\_irn_opcode(const ir_node *node) {
760 if (is_$arch\_irn(node))
761 return get_irn_opcode(node) - $arch\_opcode_start;
771 #define BIT(x) (1 << (x % 32))
775 print OUT @obst_limit_func;
778 print OUT @obst_reg_reqs;
781 print OUT<<ENDOFMAIN;
785 * Creates the $arch specific Firm machine operations
786 * needed for the assembler irgs.
788 void $arch\_create_opcodes(const arch_irn_ops_t *be_ops) {
789 #define N irop_flag_none
790 #define L irop_flag_labeled
791 #define C irop_flag_commutative
792 #define X irop_flag_cfopcode
793 #define F irop_flag_fragile
794 #define Y irop_flag_forking
795 #define H irop_flag_highlevel
796 #define c irop_flag_constlike
797 #define K irop_flag_keep
798 #define M irop_flag_machine
799 #define O irop_flag_machine_op
800 #define NB irop_flag_dump_noblock
801 #define NI irop_flag_dump_noinput
802 #define n irop_flag_cse_neutral
803 #define R (irop_flag_user << 0)
807 static int run_once = 0;
810 if (defined($default_op_attr_type)) {
811 print OUT "\t$default_op_attr_type *attr, *attrs;\n";
814 print OUT<<ENDOFMAIN;
820 cur_opcode = get_next_ir_opcodes(iro_$arch\_last);
822 $arch\_opcode_start = cur_opcode;
825 if (defined($default_op_attr_type)) {
826 print OUT "\tattrs = xmalloc(sizeof(attr[0]) * iro_$arch\_last);\n";
827 print OUT "\tmemset(attrs, 0, sizeof(attr[0]) * iro_$arch\_last);\n";
830 print OUT @obst_new_irop;
832 print OUT "\t$arch\_register_additional_opcodes(cur_opcode);\n" if (defined($additional_opcodes));
833 print OUT "\t$arch\_opcode_end = cur_opcode + iro_$arch\_last";
834 print OUT " + $additional_opcodes" if (defined($additional_opcodes));
840 open(OUT, ">$target_h") || die("Fatal error: Could not open $target_h, reason: $!\n");
842 my $creation_time = localtime(time());
848 * \@brief Function prototypes for the new opcode functions.
849 * \@note DO NOT EDIT THIS FILE, your changes will be lost.
850 * Edit $specfile instead.
851 * created by: $0 $specfile $target_dir
852 * \@date $creation_time
854 #ifndef FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
855 #define FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
859 print OUT @obst_enum_op;
861 int is_${arch}_irn(const ir_node *node);
862 int is_${arch}_op(const ir_op *op);
864 int get_${arch}_opcode_first(void);
865 int get_${arch}_opcode_last(void);
866 int get_${arch}_irn_opcode(const ir_node *node);
876 # Translates numeric arity into string constant.
878 sub translate_arity {
881 if ($arity =~ /^\d+$/) {
883 return "oparity_zero";
885 elsif ($arity == 1) {
886 return "oparity_unary";
888 elsif ($arity == 2) {
889 return "oparity_binary";
891 elsif ($arity == 3) {
892 return "oparity_trinary";
895 return "oparity_any";
897 } elsif ($arity == $ARITY_VARIABLE) {
898 return "oparity_variable";
899 } elsif ($arity == $ARITY_DYNAMIC) {
900 return "oparity_dynamic";
902 die "Fatal error: Unknown arity $arity";
907 # Return the list of pointers for the given execution units.
909 sub gen_execunit_list_initializer {
911 my $uc_arch = uc($arch);
916 foreach my $unit (@{ $units }) {
917 if ($unit eq "DUMMY") {
918 push(@{ $init{"DUMMY"} }, "\t\t&be_machine_execution_units_DUMMY[0]");
920 elsif (exists($cpu{"$unit"})) {
921 # operation can be executed on all units of this type
923 my $tp_name = "$arch\_execution_units_$unit";
925 foreach (@{ $cpu{"$unit"} }) {
926 next if ($idx++ == 0); # skip first element (it's not a unit)
927 my $unit_name = "$uc_arch\_EXECUNIT_TP_$unit\_$_";
928 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
932 # operation can be executed only a certain unit
933 # -> find corresponding unit type
935 TP_SEARCH: foreach my $cur_type (keys(%cpu)) {
936 foreach my $cur_unit (@{ $cpu{"$cur_type"} }) {
937 if ($unit eq $cur_unit) {
938 my $tp_name = "$arch\_execution_units_$cur_type";
939 my $unit_name = "$uc_arch\_EXECUNIT_TP_$cur_type\_$unit";
940 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
948 print STDERR "Invalid execution unit $unit specified!\n";
953 # prepare the 2-dim array init
954 foreach my $key (keys(%init)) {
955 $ret .= "\tstatic const be_execution_unit_t *allowed_units_".$key."[] =\n";
957 foreach (@{ $init{"$key"} }) {
960 $ret .= "\t\tNULL\n";
962 $ret2 .= "\t\tallowed_units_$key,\n";
964 $ret2 .= "\t\tNULL\n";
966 $ret .= "\tstatic const be_execution_unit_t **exec_units[] =\n";
974 sub mangle_requirements {
979 my @alternatives = split(/ /, $reqs);
980 for(my $idx = 0; $idx < scalar(@alternatives); $idx++) {
981 $alternatives[$idx] =~ s/!/not_/g;
984 @alternatives = sort @alternatives;
986 my $name = $class."_".join('_', @alternatives);
987 if (defined($flags)) {
996 # Determines whether $name is a specified register class or not.
997 # @return 1 if name is register class, 0 otherwise
1001 return 1 if exists($reg_classes{"$name"});
1006 # Returns the register class for a given register.
1007 # @return class or undef
1011 $reg = substr($reg, 1) if ($reg =~ /!.*/);
1012 return $reg2class{"$reg"}{"class"} if (exists($reg2class{"$reg"}));
1017 # Returns the index of a given register within it's register class.
1018 # @return index or undef
1022 return $reg2class{"$reg"}{"index"} if (exists($reg2class{"$reg"}));
1027 # Remember the register class for each index in the given requirements.
1028 # We need this information for requirements like "in_sX" or "out_dX"
1029 # @return array of classes corresponding to the requirement for each index
1031 sub build_inout_idx_class {
1037 my $inout = ($is_in ? "in" : "out");
1039 if (exists($n->{"reg_req"}{"$inout"})) {
1040 my @reqs = @{ $n->{"reg_req"}{"$inout"} };
1042 for (my $idx = 0; $idx <= $#reqs; $idx++) {
1044 my ($req,) = split(/:/, $reqs[$idx]);
1046 if ($req eq "none") {
1048 } elsif (is_reg_class($req)) {
1051 my @regs = split(/ /, $req);
1052 GET_CLASS: foreach my $reg (@regs) {
1053 if ($reg =~ /!?(in|out)\_r\d+/ || $reg =~ /!in/) {
1054 $class = "UNKNOWN_CLASS";
1056 $class = get_reg_class($reg);
1057 if (!defined $class) {
1058 die("Fatal error: Could not get ".uc($inout)." register class for '$op' pos $idx (reg $reg) ... exiting.\n");
1066 push(@idx_class, $class);
1074 # Generates the function for a given $op and a given IN-index
1075 # which returns a subset of possible register from a register class
1076 # @return classname from which the subset is derived or undef and
1077 # pos which corresponds to in/out reference position or undef
1079 sub build_subset_class_func {
1085 my $different_pos = 0;
1091 my $limit_reqs; #used for name mangling
1093 # build function header
1098 my @regs = split(/ /, shift);
1101 my @idx_class = build_inout_idx_class($node, $op, !$is_in);
1103 # set/unset registers
1104 CHECK_REQS: foreach (@regs) {
1105 if (!$is_in && /(!)?in_r(\d+)/) {
1106 my $bit_pos = 1 << ($2 - 1);
1107 if ($different_pos & $bit_pos) {
1109 print STDERR "duplicate !in constraint\n";
1111 print STDERR "conflicting !in and in constraints\n";
1113 return (undef, undef, undef, undef);
1116 if ($same_pos & $bit_pos) {
1118 print STDERR "conflicting !in and in constraints\n";
1120 print STDERR "duplicate in constraint\n";
1122 return (undef, undef, undef, undef);
1126 $different_pos |= $bit_pos;
1128 $same_pos |= $bit_pos;
1131 $class = $idx_class[$2 - 1];
1136 if (substr($_, 0, 1) eq "!") {
1137 if (defined($neg) && $neg == 0) {
1138 # we have seen a positiv constraint as first one but this one is negative
1139 # this doesn't make sense
1140 print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n";
1141 return (undef, undef, undef, undef);
1144 if (!defined($neg)) {
1148 $_ = substr($_, 1); # skip '!'
1151 if (defined($neg) && $neg == 1) {
1152 # we have seen a negative constraint as first one but this one is positive
1153 # this doesn't make sense
1154 print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n";
1155 return (undef, undef, undef, undef);
1162 # check if register belongs to one of the given classes
1163 $temp = get_reg_class($_);
1164 if (!defined($temp)) {
1165 print STDERR "Unknown register '$_'!\n";
1166 return (undef, undef, undef, undef);
1170 if (!defined($class)) {
1172 } elsif ($class ne $temp) {
1173 # all registers must belong to the same class
1174 print STDERR "Registerclass mismatch. '$_' is not member of class '$class'.\n";
1175 return (undef, undef, undef, undef);
1178 # calculate position inside the initializer bitfield (only 32 bits per
1180 my $regidx = get_reg_index($_);
1181 my $arrayp = $regidx / 32;
1182 push(@{$limit_array[$arrayp]}, $_);
1183 $limit_reqs .= "$_ ";
1186 # don't allow ignore regs in negative constraints
1188 my @cur_class = @{ $reg_classes{"$class"} };
1189 for (my $idx = 0; $idx <= $#cur_class; $idx++) {
1190 if (defined($cur_class[$idx]{"type"}) && ($cur_class[$idx]{"type"} & 4)) {
1191 my $reg = $cur_class[$idx]{"name"};
1192 my $regix = get_reg_index($reg);
1193 my $arrayp = $regix / 32;
1194 push(@{$limit_array[$arrayp]}, $reg);
1195 $limit_reqs .= "$reg ";
1200 if ($has_limit == 1) {
1201 $limit_name = "${arch}_limit_".mangle_requirements($limit_reqs, $class);
1203 if(defined($limit_bitsets{$limit_name})) {
1204 $limit_name = $limit_bitsets{$limit_name};
1205 return ($class, $limit_name, $same_pos, $different_pos);
1208 $limit_bitsets{$limit_name} = $limit_name;
1210 push(@obst_limit_func, "static const unsigned " . $limit_name . "[] = { ");
1212 my $limitbitsetlen = $regclass2len{$class};
1213 my $limitarraylen = ($limitbitsetlen+31) / 32;
1214 for(my $i = 0; $i < $limitarraylen; $i++) {
1216 my $limitarraypart = $limit_array[$i];
1220 push(@obst_limit_func, ", ");
1224 $temp = "0xFFFFFFFF";
1226 foreach my $reg (@{$limitarraypart}) {
1229 } elsif(defined($temp)) {
1232 $temp .= "BIT(REG_".uc(${reg}).")";
1234 if(defined($temp)) {
1235 push(@obst_limit_func, "${temp}");
1237 push(@obst_limit_func, "0");
1240 push(@obst_limit_func, " };\n");
1243 return ($class, $limit_name, $same_pos, $different_pos);
1247 # Generate register requirements structure
1249 sub generate_requirements {
1250 my ($reqs, $flags) = split(/:/, shift);
1259 if (defined($flags)) {
1260 foreach my $f (split(/|/, $flags)) {
1262 push(@req_type_mask, "arch_register_req_type_ignore");
1263 } elsif ($f eq "S") {
1264 push(@req_type_mask, "arch_register_req_type_produces_sp");
1269 if ($reqs eq "none") {
1273 arch_register_req_type_none,
1274 NULL, /* regclass */
1275 NULL, /* limit bitset */
1277 0 /* different pos */
1281 } elsif (is_reg_class($reqs)) {
1282 push(@req_type_mask, "arch_register_req_type_normal");
1283 my $reqtype = join(" | ", @req_type_mask);
1288 & ${arch}_reg_classes[CLASS_${arch}_${class}],
1289 NULL, /* limit bitset */
1291 0 /* different pos */
1297 my ($regclass, $limit_bitset, $same_pos, $different_pos)
1298 = build_subset_class_func($node, $op, $idx, $is_in, $reqs, $flags);
1300 if (!defined($regclass)) {
1301 die("Fatal error: Could not build subset for requirements '$reqs' of '$op' pos $idx ... exiting.\n");
1304 if (defined($limit_bitset) && $limit_bitset ne "NULL") {
1305 push(@req_type_mask, "arch_register_req_type_limited");
1307 if ($same_pos != 0) {
1308 push(@req_type_mask, "arch_register_req_type_should_be_same");
1310 if ($different_pos != 0) {
1311 push(@req_type_mask, "arch_register_req_type_must_be_different");
1313 my $reqtype = join(" | ", @req_type_mask);
1315 if(!defined($limit_bitset)) {
1316 $limit_bitset = "NULL";
1323 & ${arch}_reg_classes[CLASS_${arch}_${class}],
1325 ${same_pos}, /* same pos */
1326 ${different_pos} /* different pos */
1332 my $name = "${arch}_requirements_".mangle_requirements($reqs, $class, $flags);
1333 if(defined($requirements{$name})) {
1336 $requirements{$name} = $name;
1337 push(@obst_reg_reqs, <<EOF);
1338 static const arch_register_req_t ${name} = ${result}