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;
211 my $comment = $n->{"comment"};
212 if(!exists($n->{"comment"})) {
213 $comment = "construct ${orig_op} node";
220 $obst_constructor .= $comment;
222 # create constructor head
223 my $complete_args = "";
226 $temp = "ir_node *new_bd_${arch}_${op}${suffix}(dbg_info *dbgi, ir_node *block";
227 if (!exists($n->{"args"})) { # default args
228 if ($arity == $ARITY_VARIABLE) {
229 $complete_args = ", int arity, ir_node *in[]";
230 } elsif ($arity == $ARITY_DYNAMIC) {
233 for (my $i = 0; $i < $arity; $i++) {
234 my $opname = "op${i}";
235 if (exists($n->{"ins"})) {
236 my @ins = @{ $n->{"ins"} };
240 $complete_args .= ", ir_node *${opname}";
243 if ($out_arity == $ARITY_VARIABLE) {
244 $complete_args .= ", int n_res";
247 if (!defined($known_mode)) {
248 $complete_args .= ", ir_mode *mode";
250 } else { # user defined args
251 for my $href (@{ $n->{"args"} }) {
252 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
253 $complete_args .= ", ".$href->{"type"}.$href->{"name"};
257 # we have additional attribute arguements
258 if (exists($n->{"attr"})) {
259 $complete_args .= ", ".$n->{"attr"};
262 $temp .= "$complete_args)";
263 $obst_constructor .= "${temp}\n{\n";
265 $obst_header .= $comment;
266 $obst_header .= "${temp};\n";
268 # emit constructor code
271 ir_op *op = op_${arch}_${op};
273 backend_info_t *info;
276 if($arity == $ARITY_DYNAMIC) {
281 } elsif($arity == $ARITY_VARIABLE) {
296 if($out_arity == $ARITY_DYNAMIC) {
300 } elsif($out_arity == $ARITY_VARIABLE) {
303 int n_res = ${out_arity};
307 if (defined($known_mode)) {
309 ir_mode *mode = ${known_mode};
313 # set up static variables for cpu execution unit assigments
314 if (exists($n->{"units"})) {
315 $temp .= gen_execunit_list_initializer($n->{"units"});
318 static const be_execution_unit_t ***exec_units = NULL;
322 undef my $in_req_var;
323 undef my $out_req_var;
325 my $set_out_reqs = "";
327 # set up static variables for requirements and registers
328 if (exists($n->{"reg_req"})) {
329 my %req = %{ $n->{"reg_req"} };
333 @in = @{ $req{"in"} } if (exists($req{"in"}));
335 @out = @{ $req{"out"} } if exists(($req{"out"}));
337 for(my $idx = 0; $idx < $#in; $idx++) {
339 generate_requirements($req, $n, "${arch}_${op}", $idx, 1);
341 for(my $idx = 0; $idx < $#out; $idx++) {
342 my $req = $out[$idx];
343 generate_requirements($req, $n, "${arch}_${op}", $idx, 0);
347 if($arity >= 0 && scalar(@in) != $arity) {
348 die "Fatal error: Arity and number of in requirements don't match for ${op}\n";
351 $temp .= "\tstatic const arch_register_req_t *in_reqs[] =\n";
353 for ($idx = 0; $idx <= $#in; $idx++) {
355 my $reqstruct = generate_requirements($req, $n, "${arch}_${op}", $idx, 1);
356 $temp .= "\t\t& ${reqstruct},\n";
361 die "Fatal error: need in requirements for ${op}\n";
363 $temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n";
367 if($out_arity >= 0 && scalar(@out) != $out_arity) {
368 die "Fatal error: Out-Arity and number of out requirements don't match for ${op}\n";
371 for ($idx = 0; $idx <= $#out; $idx++) {
372 my $req = $out[$idx];
373 my $reqstruct = generate_requirements($req, $n, "${arch}_${op}", $idx, 0);
374 $set_out_reqs .= <<EOF;
375 info->out_infos[${idx}].req = &${reqstruct};
380 die "Fatal error: need out requirements for ${op}\n";
384 $temp .= "\tstatic const arch_register_req_t **in_reqs = NULL;\n";
386 my $attr_type = $on->{attr_type};
387 if(exists($n->{"init_attr"})) {
388 $temp .= "\t${attr_type} *attr;\n";
394 $temp .= "\t/* construct in array */\n";
395 for (my $i = 0; $i < $arity; $i++) {
396 my $opname = "op${i}";
397 if (exists($n->{"ins"})) {
398 my @ins = @{ $n->{"ins"} };
402 $temp .= "\tin[${i}] = ${opname};\n";
408 if (exists($n->{"irn_flags"})) {
409 $temp .= "\t/* flags */\n";
410 foreach my $flag (split(/\|/, $n->{"irn_flags"})) {
412 $temp .= "\tflags |= arch_irn_flags_rematerializable;\n";
413 } elsif ($flag eq "N") {
414 $temp .= "\tflags |= arch_irn_flags_dont_spill;\n";
415 } elsif ($flag eq "F") {
416 $temp .= "\tflags |= arch_irn_flags_modify_flags;\n";
417 } elsif ($flag eq "J") {
418 $temp .= "\t flags |= arch_irn_flags_simple_jump;\n";
420 die "Fatal error: unknown flag $flag for ${op}\n";
426 # lookup init function
427 my $attr_init_code = $init_attr{$attr_type};
428 if(!defined($attr_init_code)) {
429 die "Fatal error: Couldn't find attribute initialisation code for type '${attr_type}'";
432 if(defined($custom_init_attr_func)) {
433 $custominit .= &$custom_init_attr_func($n, $on, "${arch}_${op}");
435 if(defined($n->{custominit})) {
436 $custominit .= $n->{custominit};
442 res = new_ir_node(dbgi, current_ir_graph, block, op, mode, arity, in);
444 /* init node attributes */
447 info = be_get_info(res);
448 (void) info; /* avoid potential warning */
453 if (exists($n->{"init_attr"})) {
454 $temp .= "\tattr = get_irn_generic_attr(res);\n";
455 $temp .= "\t".$n->{"init_attr"}."\n";
460 res = optimize_node(res);
461 irn_vrfy_irg(res, current_ir_graph);
466 $obst_constructor .= $temp;
468 # close constructor function
469 $obst_constructor .= "}\n\n";
472 push(@obst_enum_op, "typedef enum _${arch}_opcodes {\n");
473 foreach my $op (keys(%nodes)) {
474 my %n = %{ $nodes{"$op"} };
482 if(exists($n{"arity"})) {
483 $arity = $n{"arity"};
484 } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
485 $arity = scalar(@{ $n{"reg_req"}{"in"} });
486 } elsif (exists($n{"ins"})) {
487 $arity = scalar(@{ $n{"ins"} });
489 if($arity eq "variable") {
490 $arity = $ARITY_VARIABLE;
491 } elsif($arity eq "dynamic") {
492 $arity = $ARITY_DYNAMIC;
495 # determine out arity
497 if(exists($n{"out_arity"})) {
498 $out_arity = $n{"out_arity"};
499 } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"out"})) {
500 $out_arity = scalar(@{ $n{"reg_req"}{"out"} });
501 } elsif (exists($n{"outs"})) {
502 $out_arity = scalar(@{ $n{"outs"} });
504 if($out_arity eq "variable") {
505 $out_arity = $ARITY_VARIABLE;
506 } elsif($out_arity eq "dynamic") {
507 $out_arity = $ARITY_DYNAMIC;
514 # define proj numbers and in numbers
515 if (exists($n{"outs"})) {
518 @outs = @{ $n{"outs"} };
519 if($out_arity >= 0 && scalar(@outs) != $out_arity) {
520 die "Fatal error: Op ${op} has different number of outs and out_arity\n";
523 $num_outs = $#outs + 1;
525 $obst_proj .= "\nenum pn_${op} {\n";
527 for (my $idx = 0; $idx <= $#outs; $idx++) {
528 # check, if we have additional flags annotated to out
529 if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) {
530 push(@out_flags, $1);
531 $outs[$idx] =~ s/:((S|I)(\|(S|I))*)//;
533 $obst_proj .= "\tpn_${op}_".$outs[$idx]." = ${idx},\n";
536 $obst_proj .= "};\n";
537 # outs have names, it must be a mode_T node
538 if (!defined($n{mode})) {
542 if (exists($n{"ins"})) {
545 @ins = @{ $n{"ins"} };
546 if($arity >= 0 && scalar(@ins) != $arity) {
547 die "Fatal error: Op ${op} has different number of ins and arity\n";
550 $obst_proj .= "\nenum n_$op {\n";
551 for (my $idx = 0; $idx <= $#ins; $idx++) {
552 $obst_proj .= "\tn_${op}_".$ins[$idx]." = ${idx},\n";
554 $obst_proj .= "};\n";
558 push(@obst_opvar, "ir_op *op_$op = NULL;\n");
559 push(@obst_get_opvar, "ir_op *get_op_$op(void) { return op_$op; }\n");
560 push(@obst_get_opvar, "int is_$op(const ir_node *n) { return get_$arch\_irn_opcode(n) == iro_$op; }\n\n");
562 push(@obst_is_archirn, "is_$op(node)");
564 $obst_header .= <<EOF;
565 extern ir_op *op_${op};
566 ir_op *get_op_${op}(void);
567 int is_${op}(const ir_node *n);
570 my $attr_type= $n{attr_type};
571 if(!defined($attr_type)) {
572 $attr_type = $default_attr_type;
573 $n{attr_type} = $attr_type;
576 # determine hash function
578 if (exists($n{"hash_func"})) {
579 $hash_func = $n{"hash_func"};
582 # determine compare function
584 if (exists($n{"cmp_attr"})) {
585 my $cmpcode = $n{"cmp_attr"};
587 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
588 if($cmpcode =~ m/attr_a/) {
589 push(@obst_cmp_attr, "\t${attr_type} *attr_a = get_irn_generic_attr(a);\n");
591 push(@obst_cmp_attr, "\t(void) a;\n");
593 if($cmpcode =~ m/attr_b/) {
594 push(@obst_cmp_attr, "\t${attr_type} *attr_b = get_irn_generic_attr(b);\n");
596 push(@obst_cmp_attr, "\t(void) b;\n");
598 push(@obst_cmp_attr, "\t${cmpcode}\n");
599 push(@obst_cmp_attr, "}\n\n");
601 $cmp_attr_func = "cmp_attr_${op}";
603 if(defined($compare_attr{${attr_type}})) {
604 $cmp_attr_func = $compare_attr{${attr_type}};
606 die "Fatal error: No compare function defined for ${attr_type} attributes.";
611 if (exists($n{constructors})) {
612 %constructors = %{ $n{constructors} };
614 # Create 1 default constructor
615 my %constructor = ();
616 foreach my $a ("comment", "ins", "outs", "args", "attr", "units",
617 "reg_req", "init_attr", "irn_flags", "mode", "arity",
618 "out_arity", "custominit") {
619 if (defined($n{$a})) {
620 $constructor{$a} = $n{$a};
623 %constructors = ( "" => \%constructor );
626 foreach my $constr (keys(%constructors)) {
627 my %cstr = %{ $constructors{$constr} };
628 # Copy some values from outer node if they don't exists in the constr
629 foreach my $a ("ins", "outs", "irn_flags", "mode", "args", "attr",
631 if (!defined($cstr{$a}) && defined($n{$a})) {
635 create_constructor($orig_op, $constr, \%cstr, \%n);
638 # set default values for state and flags if not given
639 $n{"state"} = "floats" if (! exists($n{"state"}));
640 $n{"op_flags"} = "N" if (! exists($n{"op_flags"}));
642 push(@obst_new_irop, "\n\tmemset(&ops, 0, sizeof(ops));\n");
643 push(@obst_new_irop, "\tops.be_ops = be_ops;\n");
644 push(@obst_new_irop, "\tops.dump_node = $arch\_dump_node;\n");
646 if (defined($cmp_attr_func)) {
647 push(@obst_new_irop, "\tops.node_cmp_attr = ${cmp_attr_func};\n");
649 my $copy_attr_func = $copy_attr{$attr_type};
650 if (!defined($copy_attr_func)) {
651 $copy_attr_func = $default_copy_attr;
653 if (defined($copy_attr_func)) {
654 push(@obst_new_irop, "\tops.copy_attr = ${copy_attr_func};\n");
656 if (defined($hash_func)) {
657 push(@obst_new_irop, "\tops.hash = ${hash_func};\n");
661 $temp = "\top_$op = new_ir_op(cur_opcode + iro_$op, \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
662 $temp .= "|M, ".translate_arity($arity).", 0, sizeof(${attr_type}), &ops);\n";
663 push(@obst_new_irop, $temp);
664 push(@obst_new_irop, "\tset_op_tag(op_$op, $arch\_op_tag);\n");
665 if(defined($default_op_attr_type)) {
666 push(@obst_new_irop, "\tattr = &attrs[iro_$op];\n");
667 if(defined($n{op_attr_init})) {
668 push(@obst_new_irop, "\t".$n{op_attr_init}."\n");
670 push(@obst_new_irop, "\tset_op_attr(op_$op, attr);\n");
673 push(@obst_enum_op, "\tiro_$op,\n");
675 $obst_header .= "\n";
677 push(@obst_enum_op, "\tiro_$arch\_last_generated,\n");
678 push(@obst_enum_op, "\tiro_$arch\_last = iro_$arch\_last_generated");
679 push(@obst_enum_op, " + $additional_opcodes") if (defined($additional_opcodes));
680 push(@obst_enum_op, "\n} $arch\_opcodes;\n\n");
684 open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n");
686 print OUT "#include \"gen_$arch\_regalloc_if.h\"\n\n";
687 print OUT @obst_cmp_attr;
689 print OUT @obst_opvar;
691 print OUT @obst_get_opvar;
696 static int $arch\_opcode_start = -1;
697 static int $arch\_opcode_end = -1;
701 # build the FOURCC arguments from $arch
703 my ($a, $b, $c, $d) = ('\0', '\0', '\0', '\0');
705 if (length($arch) >= 1) {
706 $a = uc(substr($arch, 0, 1));
709 if (length($arch) >= 2) {
710 $b = uc(substr($arch, 1, 1));
713 if (length($arch) >= 3) {
714 $c = uc(substr($arch, 2, 1));
717 if (length($arch) >= 4) {
718 $d = uc(substr($arch, 3, 1));
721 print OUT<<ENDOFISIRN;
723 /** A tag for the $arch opcodes. Note that the address is used as a tag value, NOT the FOURCC code. */
724 #define $arch\_op_tag FOURCC('$a', '$b', '$c', '$d')
726 /** Return the opcode number of the first $arch opcode. */
727 int get_$arch\_opcode_first(void) {
728 return $arch\_opcode_start;
731 /** Return the opcode number of the last $arch opcode + 1. */
732 int get_$arch\_opcode_last(void) {
733 return $arch\_opcode_end;
736 /** Return 1 if the given opcode is a $arch machine op, 0 otherwise */
737 int is_$arch\_op(const ir_op *op) {
738 return get_op_tag(op) == $arch\_op_tag;
741 /** Return 1 if the given node is a $arch machine node, 0 otherwise */
742 int is_$arch\_irn(const ir_node *node) {
743 return is_$arch\_op(get_irn_op(node));
746 int get_$arch\_irn_opcode(const ir_node *node) {
747 if (is_$arch\_irn(node))
748 return get_irn_opcode(node) - $arch\_opcode_start;
758 #define BIT(x) (1 << (x % 32))
762 print OUT @obst_limit_func;
765 print OUT @obst_reg_reqs;
768 print OUT<<ENDOFMAIN;
772 * Creates the $arch specific Firm machine operations
773 * needed for the assembler irgs.
775 void $arch\_create_opcodes(const arch_irn_ops_t *be_ops) {
776 #define N irop_flag_none
777 #define L irop_flag_labeled
778 #define C irop_flag_commutative
779 #define X irop_flag_cfopcode
780 #define I irop_flag_ip_cfopcode
781 #define F irop_flag_fragile
782 #define Y irop_flag_forking
783 #define H irop_flag_highlevel
784 #define c irop_flag_constlike
785 #define K irop_flag_keep
786 #define M irop_flag_machine
787 #define O irop_flag_machine_op
788 #define NB irop_flag_dump_noblock
789 #define NI irop_flag_dump_noinput
790 #define n irop_flag_cse_neutral
791 #define R (irop_flag_user << 0)
795 static int run_once = 0;
798 if (defined($default_op_attr_type)) {
799 print OUT "\t$default_op_attr_type *attr, *attrs;\n";
802 print OUT<<ENDOFMAIN;
808 cur_opcode = get_next_ir_opcodes(iro_$arch\_last);
810 $arch\_opcode_start = cur_opcode;
813 if (defined($default_op_attr_type)) {
814 print OUT "\tattrs = xmalloc(sizeof(attr[0]) * iro_$arch\_last);\n";
815 print OUT "\tmemset(attrs, 0, sizeof(attr[0]) * iro_$arch\_last);\n";
818 print OUT @obst_new_irop;
820 print OUT "\t$arch\_register_additional_opcodes(cur_opcode);\n" if (defined($additional_opcodes));
821 print OUT "\t$arch\_opcode_end = cur_opcode + iro_$arch\_last";
822 print OUT " + $additional_opcodes" if (defined($additional_opcodes));
828 open(OUT, ">$target_h") || die("Fatal error: Could not open $target_h, reason: $!\n");
830 my $creation_time = localtime(time());
836 * \@brief Function prototypes for the new opcode functions.
837 * \@note DO NOT EDIT THIS FILE, your changes will be lost.
838 * Edit $specfile instead.
839 * created by: $0 $specfile $target_dir
840 * \@date $creation_time
842 #ifndef FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
843 #define FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
847 print OUT @obst_enum_op;
849 int is_${arch}_irn(const ir_node *node);
850 int is_${arch}_op(const ir_op *op);
852 int get_${arch}_opcode_first(void);
853 int get_${arch}_opcode_last(void);
854 int get_${arch}_irn_opcode(const ir_node *node);
864 # Translates numeric arity into string constant.
866 sub translate_arity {
869 if ($arity =~ /^\d+$/) {
871 return "oparity_zero";
873 elsif ($arity == 1) {
874 return "oparity_unary";
876 elsif ($arity == 2) {
877 return "oparity_binary";
879 elsif ($arity == 3) {
880 return "oparity_trinary";
883 return "oparity_any";
885 } elsif ($arity == $ARITY_VARIABLE) {
886 return "oparity_variable";
887 } elsif ($arity == $ARITY_DYNAMIC) {
888 return "oparity_dynamic";
890 die "Fatal error: Unknown arity $arity";
895 # Return the list of pointers for the given execution units.
897 sub gen_execunit_list_initializer {
899 my $uc_arch = uc($arch);
904 foreach my $unit (@{ $units }) {
905 if ($unit eq "DUMMY") {
906 push(@{ $init{"DUMMY"} }, "\t\t&be_machine_execution_units_DUMMY[0]");
908 elsif (exists($cpu{"$unit"})) {
909 # operation can be executed on all units of this type
911 my $tp_name = "$arch\_execution_units_$unit";
913 foreach (@{ $cpu{"$unit"} }) {
914 next if ($idx++ == 0); # skip first element (it's not a unit)
915 my $unit_name = "$uc_arch\_EXECUNIT_TP_$unit\_$_";
916 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
920 # operation can be executed only a certain unit
921 # -> find corresponding unit type
923 TP_SEARCH: foreach my $cur_type (keys(%cpu)) {
924 foreach my $cur_unit (@{ $cpu{"$cur_type"} }) {
925 if ($unit eq $cur_unit) {
926 my $tp_name = "$arch\_execution_units_$cur_type";
927 my $unit_name = "$uc_arch\_EXECUNIT_TP_$cur_type\_$unit";
928 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
936 print STDERR "Invalid execution unit $unit specified!\n";
941 # prepare the 2-dim array init
942 foreach my $key (keys(%init)) {
943 $ret .= "\tstatic const be_execution_unit_t *allowed_units_".$key."[] =\n";
945 foreach (@{ $init{"$key"} }) {
948 $ret .= "\t\tNULL\n";
950 $ret2 .= "\t\tallowed_units_$key,\n";
952 $ret2 .= "\t\tNULL\n";
954 $ret .= "\tstatic const be_execution_unit_t **exec_units[] =\n";
962 sub mangle_requirements {
967 my @alternatives = split(/ /, $reqs);
968 for(my $idx = 0; $idx < scalar(@alternatives); $idx++) {
969 $alternatives[$idx] =~ s/!/not_/g;
972 @alternatives = sort @alternatives;
974 my $name = $class."_".join('_', @alternatives);
975 if (defined($flags)) {
984 # Determines whether $name is a specified register class or not.
985 # @return 1 if name is register class, 0 otherwise
989 return 1 if exists($reg_classes{"$name"});
994 # Returns the register class for a given register.
995 # @return class or undef
999 $reg = substr($reg, 1) if ($reg =~ /!.*/);
1000 return $reg2class{"$reg"}{"class"} if (exists($reg2class{"$reg"}));
1005 # Returns the index of a given register within it's register class.
1006 # @return index or undef
1010 return $reg2class{"$reg"}{"index"} if (exists($reg2class{"$reg"}));
1015 # Remember the register class for each index in the given requirements.
1016 # We need this information for requirements like "in_sX" or "out_dX"
1017 # @return array of classes corresponding to the requirement for each index
1019 sub build_inout_idx_class {
1025 my $inout = ($is_in ? "in" : "out");
1027 if (exists($n->{"reg_req"}{"$inout"})) {
1028 my @reqs = @{ $n->{"reg_req"}{"$inout"} };
1030 for (my $idx = 0; $idx <= $#reqs; $idx++) {
1032 my ($req,) = split(/:/, $reqs[$idx]);
1034 if ($req eq "none") {
1036 } elsif (is_reg_class($req)) {
1039 my @regs = split(/ /, $req);
1040 GET_CLASS: foreach my $reg (@regs) {
1041 if ($reg =~ /!?(in|out)\_r\d+/ || $reg =~ /!in/) {
1042 $class = "UNKNOWN_CLASS";
1044 $class = get_reg_class($reg);
1045 if (!defined $class) {
1046 die("Fatal error: Could not get ".uc($inout)." register class for '$op' pos $idx (reg $reg) ... exiting.\n");
1054 push(@idx_class, $class);
1062 # Generates the function for a given $op and a given IN-index
1063 # which returns a subset of possible register from a register class
1064 # @return classname from which the subset is derived or undef and
1065 # pos which corresponds to in/out reference position or undef
1067 sub build_subset_class_func {
1073 my $different_pos = 0;
1079 my $limit_reqs; #used for name mangling
1081 # build function header
1086 my @regs = split(/ /, shift);
1089 my @idx_class = build_inout_idx_class($node, $op, !$is_in);
1091 # set/unset registers
1092 CHECK_REQS: foreach (@regs) {
1093 if (!$is_in && /(!)?in_r(\d+)/) {
1094 my $bit_pos = 1 << ($2 - 1);
1095 if ($different_pos & $bit_pos) {
1097 print STDERR "duplicate !in constraint\n";
1099 print STDERR "conflicting !in and in constraints\n";
1101 return (undef, undef, undef, undef);
1104 if ($same_pos & $bit_pos) {
1106 print STDERR "conflicting !in and in constraints\n";
1108 print STDERR "duplicate in constraint\n";
1110 return (undef, undef, undef, undef);
1114 $different_pos |= $bit_pos;
1116 $same_pos |= $bit_pos;
1119 $class = $idx_class[$2 - 1];
1124 if (substr($_, 0, 1) eq "!") {
1125 if (defined($neg) && $neg == 0) {
1126 # we have seen a positiv constraint as first one but this one is negative
1127 # this doesn't make sense
1128 print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n";
1129 return (undef, undef, undef, undef);
1132 if (!defined($neg)) {
1136 $_ = substr($_, 1); # skip '!'
1139 if (defined($neg) && $neg == 1) {
1140 # we have seen a negative constraint as first one but this one is positive
1141 # this doesn't make sense
1142 print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n";
1143 return (undef, undef, undef, undef);
1150 # check if register belongs to one of the given classes
1151 $temp = get_reg_class($_);
1152 if (!defined($temp)) {
1153 print STDERR "Unknown register '$_'!\n";
1154 return (undef, undef, undef, undef);
1158 if (!defined($class)) {
1160 } elsif ($class ne $temp) {
1161 # all registers must belong to the same class
1162 print STDERR "Registerclass mismatch. '$_' is not member of class '$class'.\n";
1163 return (undef, undef, undef, undef);
1166 # calculate position inside the initializer bitfield (only 32 bits per
1168 my $regidx = get_reg_index($_);
1169 my $arrayp = $regidx / 32;
1170 push(@{$limit_array[$arrayp]}, $_);
1171 $limit_reqs .= "$_ ";
1174 # don't allow ignore regs in negative constraints
1176 my @cur_class = @{ $reg_classes{"$class"} };
1177 for (my $idx = 0; $idx <= $#cur_class; $idx++) {
1178 if (defined($cur_class[$idx]{"type"}) && ($cur_class[$idx]{"type"} & 4)) {
1179 my $reg = $cur_class[$idx]{"name"};
1180 my $regix = get_reg_index($reg);
1181 my $arrayp = $regix / 32;
1182 push(@{$limit_array[$arrayp]}, $reg);
1183 $limit_reqs .= "$reg ";
1188 if ($has_limit == 1) {
1189 $limit_name = "${arch}_limit_".mangle_requirements($limit_reqs, $class);
1191 if(defined($limit_bitsets{$limit_name})) {
1192 $limit_name = $limit_bitsets{$limit_name};
1193 return ($class, $limit_name, $same_pos, $different_pos);
1196 $limit_bitsets{$limit_name} = $limit_name;
1198 push(@obst_limit_func, "static const unsigned " . $limit_name . "[] = { ");
1200 my $limitbitsetlen = $regclass2len{$class};
1201 my $limitarraylen = ($limitbitsetlen+31) / 32;
1202 for(my $i = 0; $i < $limitarraylen; $i++) {
1204 my $limitarraypart = $limit_array[$i];
1208 push(@obst_limit_func, ", ");
1212 $temp = "0xFFFFFFFF";
1214 foreach my $reg (@{$limitarraypart}) {
1217 } elsif(defined($temp)) {
1220 $temp .= "BIT(REG_".uc(${reg}).")";
1222 if(defined($temp)) {
1223 push(@obst_limit_func, "${temp}");
1225 push(@obst_limit_func, "0");
1228 push(@obst_limit_func, " };\n");
1231 return ($class, $limit_name, $same_pos, $different_pos);
1235 # Generate register requirements structure
1237 sub generate_requirements {
1238 my ($reqs, $flags) = split(/:/, shift);
1247 if (defined($flags)) {
1248 foreach my $f (split(/|/, $flags)) {
1250 push(@req_type_mask, "arch_register_req_type_ignore");
1251 } elsif ($f eq "S") {
1252 push(@req_type_mask, "arch_register_req_type_produces_sp");
1257 if ($reqs eq "none") {
1261 arch_register_req_type_none,
1262 NULL, /* regclass */
1263 NULL, /* limit bitset */
1265 0 /* different pos */
1269 } elsif (is_reg_class($reqs)) {
1270 push(@req_type_mask, "arch_register_req_type_normal");
1271 my $reqtype = join(" | ", @req_type_mask);
1276 & ${arch}_reg_classes[CLASS_${arch}_${class}],
1277 NULL, /* limit bitset */
1279 0 /* different pos */
1285 my ($regclass, $limit_bitset, $same_pos, $different_pos)
1286 = build_subset_class_func($node, $op, $idx, $is_in, $reqs, $flags);
1288 if (!defined($regclass)) {
1289 die("Fatal error: Could not build subset for requirements '$reqs' of '$op' pos $idx ... exiting.\n");
1292 if (defined($limit_bitset) && $limit_bitset ne "NULL") {
1293 push(@req_type_mask, "arch_register_req_type_limited");
1295 if ($same_pos != 0) {
1296 push(@req_type_mask, "arch_register_req_type_should_be_same");
1298 if ($different_pos != 0) {
1299 push(@req_type_mask, "arch_register_req_type_must_be_different");
1301 my $reqtype = join(" | ", @req_type_mask);
1303 if(!defined($limit_bitset)) {
1304 $limit_bitset = "NULL";
1311 & ${arch}_reg_classes[CLASS_${arch}_${class}],
1313 ${same_pos}, /* same pos */
1314 ${different_pos} /* different pos */
1320 my $name = "${arch}_requirements_".mangle_requirements($reqs, $class, $flags);
1321 if(defined($requirements{$name})) {
1324 $requirements{$name} = $name;
1325 push(@obst_reg_reqs, <<EOF);
1326 static const arch_register_req_t ${name} = ${result}