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 my %known_irn_flags = map { $_ => 1 } (
411 "none", "dont_spill", "rematerializable",
412 "modify_flags", "simple_jump"
414 foreach my $flag (@{$n->{"irn_flags"}}) {
415 if (not defined($known_irn_flags{$flag})) {
416 print STDERR "WARNING: irn_flag '$flag' in opcode $op is unknown\n";
418 $temp .= "\tflags |= arch_irn_flags_$flag;\n";
423 # lookup init function
424 my $attr_init_code = $init_attr{$attr_type};
425 if(!defined($attr_init_code)) {
426 die "Fatal error: Couldn't find attribute initialisation code for type '${attr_type}'";
429 if(defined($custom_init_attr_func)) {
430 $custominit .= &$custom_init_attr_func($n, $on, "${arch}_${op}");
432 if(defined($n->{custominit})) {
433 $custominit .= $n->{custominit};
439 res = new_ir_node(dbgi, current_ir_graph, block, op, mode, arity, in);
441 /* init node attributes */
444 info = be_get_info(res);
445 (void) info; /* avoid potential warning */
450 if (exists($n->{"init_attr"})) {
451 $temp .= "\tattr = get_irn_generic_attr(res);\n";
452 $temp .= "\t".$n->{"init_attr"}."\n";
457 res = optimize_node(res);
458 irn_vrfy_irg(res, current_ir_graph);
463 $obst_constructor .= $temp;
465 # close constructor function
466 $obst_constructor .= "}\n\n";
469 push(@obst_enum_op, "typedef enum _${arch}_opcodes {\n");
470 foreach my $op (keys(%nodes)) {
471 my %n = %{ $nodes{"$op"} };
479 if(exists($n{"arity"})) {
480 $arity = $n{"arity"};
481 } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"in"})) {
482 $arity = scalar(@{ $n{"reg_req"}{"in"} });
483 } elsif (exists($n{"ins"})) {
484 $arity = scalar(@{ $n{"ins"} });
486 if($arity eq "variable") {
487 $arity = $ARITY_VARIABLE;
488 } elsif($arity eq "dynamic") {
489 $arity = $ARITY_DYNAMIC;
492 # determine out arity
494 if(exists($n{"out_arity"})) {
495 $out_arity = $n{"out_arity"};
496 } elsif (exists($n{"reg_req"}) && exists($n{"reg_req"}{"out"})) {
497 $out_arity = scalar(@{ $n{"reg_req"}{"out"} });
498 } elsif (exists($n{"outs"})) {
499 $out_arity = scalar(@{ $n{"outs"} });
501 if($out_arity eq "variable") {
502 $out_arity = $ARITY_VARIABLE;
503 } elsif($out_arity eq "dynamic") {
504 $out_arity = $ARITY_DYNAMIC;
511 # define proj numbers and in numbers
512 if (exists($n{"outs"})) {
515 @outs = @{ $n{"outs"} };
516 if($out_arity >= 0 && scalar(@outs) != $out_arity) {
517 die "Fatal error: Op ${op} has different number of outs and out_arity\n";
520 $num_outs = $#outs + 1;
522 $obst_proj .= "\nenum pn_${op} {\n";
524 for (my $idx = 0; $idx <= $#outs; $idx++) {
525 # check, if we have additional flags annotated to out
526 if ($outs[$idx] =~ /:((S|I)(\|(S|I))*)/) {
527 push(@out_flags, $1);
528 $outs[$idx] =~ s/:((S|I)(\|(S|I))*)//;
530 $obst_proj .= "\tpn_${op}_".$outs[$idx]." = ${idx},\n";
533 $obst_proj .= "};\n";
534 # outs have names, it must be a mode_T node
535 if (!defined($n{mode})) {
539 if (exists($n{"ins"})) {
542 @ins = @{ $n{"ins"} };
543 if($arity >= 0 && scalar(@ins) != $arity) {
544 die "Fatal error: Op ${op} has different number of ins and arity\n";
547 $obst_proj .= "\nenum n_$op {\n";
548 for (my $idx = 0; $idx <= $#ins; $idx++) {
549 $obst_proj .= "\tn_${op}_".$ins[$idx]." = ${idx},\n";
551 $obst_proj .= "};\n";
555 push(@obst_opvar, "ir_op *op_$op = NULL;\n");
556 push(@obst_get_opvar, "ir_op *get_op_$op(void) { return op_$op; }\n");
557 push(@obst_get_opvar, "int is_$op(const ir_node *n) { return get_$arch\_irn_opcode(n) == iro_$op; }\n\n");
559 push(@obst_is_archirn, "is_$op(node)");
561 $obst_header .= <<EOF;
562 extern ir_op *op_${op};
563 ir_op *get_op_${op}(void);
564 int is_${op}(const ir_node *n);
567 my $attr_type= $n{attr_type};
568 if(!defined($attr_type)) {
569 $attr_type = $default_attr_type;
570 $n{attr_type} = $attr_type;
573 # determine hash function
575 if (exists($n{"hash_func"})) {
576 $hash_func = $n{"hash_func"};
579 # determine compare function
581 if (exists($n{"cmp_attr"})) {
582 my $cmpcode = $n{"cmp_attr"};
584 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
585 if($cmpcode =~ m/attr_a/) {
586 push(@obst_cmp_attr, "\t${attr_type} *attr_a = get_irn_generic_attr(a);\n");
588 push(@obst_cmp_attr, "\t(void) a;\n");
590 if($cmpcode =~ m/attr_b/) {
591 push(@obst_cmp_attr, "\t${attr_type} *attr_b = get_irn_generic_attr(b);\n");
593 push(@obst_cmp_attr, "\t(void) b;\n");
595 push(@obst_cmp_attr, "\t${cmpcode}\n");
596 push(@obst_cmp_attr, "}\n\n");
598 $cmp_attr_func = "cmp_attr_${op}";
600 if(defined($compare_attr{${attr_type}})) {
601 $cmp_attr_func = $compare_attr{${attr_type}};
603 die "Fatal error: No compare function defined for ${attr_type} attributes.";
608 if (exists($n{constructors})) {
609 %constructors = %{ $n{constructors} };
611 # Create 1 default constructor
612 my %constructor = ();
613 foreach my $a ("comment", "ins", "outs", "args", "attr", "units",
614 "reg_req", "init_attr", "irn_flags", "mode", "arity",
615 "out_arity", "custominit") {
616 if (defined($n{$a})) {
617 $constructor{$a} = $n{$a};
620 %constructors = ( "" => \%constructor );
623 foreach my $constr (keys(%constructors)) {
624 my %cstr = %{ $constructors{$constr} };
625 # Copy some values from outer node if they don't exists in the constr
626 foreach my $a ("ins", "outs", "irn_flags", "mode", "args", "attr",
628 if (!defined($cstr{$a}) && defined($n{$a})) {
632 create_constructor($orig_op, $constr, \%cstr, \%n);
635 # set default values for state and flags if not given
636 $n{"state"} = "floats" if (! exists($n{"state"}));
637 $n{"op_flags"} = ["none"] if (! exists($n{"op_flags"}));
639 push(@obst_new_irop, "\n\tmemset(&ops, 0, sizeof(ops));\n");
640 push(@obst_new_irop, "\tops.be_ops = be_ops;\n");
641 push(@obst_new_irop, "\tops.dump_node = $arch\_dump_node;\n");
643 if (defined($cmp_attr_func)) {
644 push(@obst_new_irop, "\tops.node_cmp_attr = ${cmp_attr_func};\n");
646 my $copy_attr_func = $copy_attr{$attr_type};
647 if (!defined($copy_attr_func)) {
648 $copy_attr_func = $default_copy_attr;
650 if (defined($copy_attr_func)) {
651 push(@obst_new_irop, "\tops.copy_attr = ${copy_attr_func};\n");
653 if (defined($hash_func)) {
654 push(@obst_new_irop, "\tops.hash = ${hash_func};\n");
657 my %known_flags = map { $_ => 1 } (
658 "none", "labeled", "commutative", "cfopcode", "op_cfopcode",
659 "fragile", "forking", "highlevel", "constlike", "always_opt",
660 "keep", "start_block", "uses_memory", "dump_noblock",
661 "dump_noinput", "machine", "machine_op", "cse_neutral"
663 foreach my $flag (@{$n{"op_flags"}}) {
664 if (not defined($known_flags{$flag})) {
665 print STDERR "WARNING: Flag '$flag' in opcode $op is unknown\n";
668 my @mapped = map { "irop_flag_$_" } @{$n{"op_flags"}};
669 my $op_flags = join('|', @mapped);
672 $temp = "\top_$op = new_ir_op(cur_opcode + iro_$op, \"$op\", op_pin_state_".$n{"state"}.", $op_flags";
673 $temp .= "|irop_flag_machine, ".translate_arity($arity).", 0, sizeof(${attr_type}), &ops);\n";
674 push(@obst_new_irop, $temp);
675 push(@obst_new_irop, "\tset_op_tag(op_$op, $arch\_op_tag);\n");
676 if(defined($default_op_attr_type)) {
677 push(@obst_new_irop, "\tattr = &attrs[iro_$op];\n");
678 if(defined($n{op_attr_init})) {
679 push(@obst_new_irop, "\t".$n{op_attr_init}."\n");
681 push(@obst_new_irop, "\tset_op_attr(op_$op, attr);\n");
684 push(@obst_enum_op, "\tiro_$op,\n");
686 $obst_header .= "\n";
688 push(@obst_enum_op, "\tiro_$arch\_last_generated,\n");
689 push(@obst_enum_op, "\tiro_$arch\_last = iro_$arch\_last_generated");
690 push(@obst_enum_op, " + $additional_opcodes") if (defined($additional_opcodes));
691 push(@obst_enum_op, "\n} $arch\_opcodes;\n\n");
695 open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n");
697 print OUT "#include \"gen_$arch\_regalloc_if.h\"\n\n";
698 print OUT @obst_cmp_attr;
700 print OUT @obst_opvar;
702 print OUT @obst_get_opvar;
707 static int $arch\_opcode_start = -1;
708 static int $arch\_opcode_end = -1;
712 # build the FOURCC arguments from $arch
714 my ($a, $b, $c, $d) = ('\0', '\0', '\0', '\0');
716 if (length($arch) >= 1) {
717 $a = uc(substr($arch, 0, 1));
720 if (length($arch) >= 2) {
721 $b = uc(substr($arch, 1, 1));
724 if (length($arch) >= 3) {
725 $c = uc(substr($arch, 2, 1));
728 if (length($arch) >= 4) {
729 $d = uc(substr($arch, 3, 1));
732 print OUT<<ENDOFISIRN;
734 /** A tag for the $arch opcodes. Note that the address is used as a tag value, NOT the FOURCC code. */
735 #define $arch\_op_tag FOURCC('$a', '$b', '$c', '$d')
737 /** Return the opcode number of the first $arch opcode. */
738 int get_$arch\_opcode_first(void) {
739 return $arch\_opcode_start;
742 /** Return the opcode number of the last $arch opcode + 1. */
743 int get_$arch\_opcode_last(void) {
744 return $arch\_opcode_end;
747 /** Return 1 if the given opcode is a $arch machine op, 0 otherwise */
748 int is_$arch\_op(const ir_op *op) {
749 return get_op_tag(op) == $arch\_op_tag;
752 /** Return 1 if the given node is a $arch machine node, 0 otherwise */
753 int is_$arch\_irn(const ir_node *node) {
754 return is_$arch\_op(get_irn_op(node));
757 int get_$arch\_irn_opcode(const ir_node *node) {
758 if (is_$arch\_irn(node))
759 return get_irn_opcode(node) - $arch\_opcode_start;
769 #define BIT(x) (1 << (x % 32))
773 print OUT @obst_limit_func;
776 print OUT @obst_reg_reqs;
779 print OUT<<ENDOFMAIN;
783 * Creates the $arch specific Firm machine operations
784 * needed for the assembler irgs.
786 void $arch\_create_opcodes(const arch_irn_ops_t *be_ops) {
787 #define N irop_flag_none
788 #define L irop_flag_labeled
789 #define C irop_flag_commutative
790 #define X irop_flag_cfopcode
791 #define I irop_flag_ip_cfopcode
792 #define F irop_flag_fragile
793 #define Y irop_flag_forking
794 #define H irop_flag_highlevel
795 #define c irop_flag_constlike
796 #define K irop_flag_keep
797 #define M irop_flag_machine
798 #define O irop_flag_machine_op
799 #define NB irop_flag_dump_noblock
800 #define NI irop_flag_dump_noinput
801 #define n irop_flag_cse_neutral
802 #define R (irop_flag_user << 0)
806 static int run_once = 0;
809 if (defined($default_op_attr_type)) {
810 print OUT "\t$default_op_attr_type *attr, *attrs;\n";
813 print OUT<<ENDOFMAIN;
819 cur_opcode = get_next_ir_opcodes(iro_$arch\_last);
821 $arch\_opcode_start = cur_opcode;
824 if (defined($default_op_attr_type)) {
825 print OUT "\tattrs = xmalloc(sizeof(attr[0]) * iro_$arch\_last);\n";
826 print OUT "\tmemset(attrs, 0, sizeof(attr[0]) * iro_$arch\_last);\n";
829 print OUT @obst_new_irop;
831 print OUT "\t$arch\_register_additional_opcodes(cur_opcode);\n" if (defined($additional_opcodes));
832 print OUT "\t$arch\_opcode_end = cur_opcode + iro_$arch\_last";
833 print OUT " + $additional_opcodes" if (defined($additional_opcodes));
839 open(OUT, ">$target_h") || die("Fatal error: Could not open $target_h, reason: $!\n");
841 my $creation_time = localtime(time());
847 * \@brief Function prototypes for the new opcode functions.
848 * \@note DO NOT EDIT THIS FILE, your changes will be lost.
849 * Edit $specfile instead.
850 * created by: $0 $specfile $target_dir
851 * \@date $creation_time
853 #ifndef FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
854 #define FIRM_BE_${tmp}_GEN_${tmp}_NEW_NODES_H
858 print OUT @obst_enum_op;
860 int is_${arch}_irn(const ir_node *node);
861 int is_${arch}_op(const ir_op *op);
863 int get_${arch}_opcode_first(void);
864 int get_${arch}_opcode_last(void);
865 int get_${arch}_irn_opcode(const ir_node *node);
875 # Translates numeric arity into string constant.
877 sub translate_arity {
880 if ($arity =~ /^\d+$/) {
882 return "oparity_zero";
884 elsif ($arity == 1) {
885 return "oparity_unary";
887 elsif ($arity == 2) {
888 return "oparity_binary";
890 elsif ($arity == 3) {
891 return "oparity_trinary";
894 return "oparity_any";
896 } elsif ($arity == $ARITY_VARIABLE) {
897 return "oparity_variable";
898 } elsif ($arity == $ARITY_DYNAMIC) {
899 return "oparity_dynamic";
901 die "Fatal error: Unknown arity $arity";
906 # Return the list of pointers for the given execution units.
908 sub gen_execunit_list_initializer {
910 my $uc_arch = uc($arch);
915 foreach my $unit (@{ $units }) {
916 if ($unit eq "DUMMY") {
917 push(@{ $init{"DUMMY"} }, "\t\t&be_machine_execution_units_DUMMY[0]");
919 elsif (exists($cpu{"$unit"})) {
920 # operation can be executed on all units of this type
922 my $tp_name = "$arch\_execution_units_$unit";
924 foreach (@{ $cpu{"$unit"} }) {
925 next if ($idx++ == 0); # skip first element (it's not a unit)
926 my $unit_name = "$uc_arch\_EXECUNIT_TP_$unit\_$_";
927 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
931 # operation can be executed only a certain unit
932 # -> find corresponding unit type
934 TP_SEARCH: foreach my $cur_type (keys(%cpu)) {
935 foreach my $cur_unit (@{ $cpu{"$cur_type"} }) {
936 if ($unit eq $cur_unit) {
937 my $tp_name = "$arch\_execution_units_$cur_type";
938 my $unit_name = "$uc_arch\_EXECUNIT_TP_$cur_type\_$unit";
939 push(@{ $init{"$unit"} }, "\t\t&".$tp_name."[".$unit_name."]");
947 print STDERR "Invalid execution unit $unit specified!\n";
952 # prepare the 2-dim array init
953 foreach my $key (keys(%init)) {
954 $ret .= "\tstatic const be_execution_unit_t *allowed_units_".$key."[] =\n";
956 foreach (@{ $init{"$key"} }) {
959 $ret .= "\t\tNULL\n";
961 $ret2 .= "\t\tallowed_units_$key,\n";
963 $ret2 .= "\t\tNULL\n";
965 $ret .= "\tstatic const be_execution_unit_t **exec_units[] =\n";
973 sub mangle_requirements {
978 my @alternatives = split(/ /, $reqs);
979 for(my $idx = 0; $idx < scalar(@alternatives); $idx++) {
980 $alternatives[$idx] =~ s/!/not_/g;
983 @alternatives = sort @alternatives;
985 my $name = $class."_".join('_', @alternatives);
986 if (defined($flags)) {
995 # Determines whether $name is a specified register class or not.
996 # @return 1 if name is register class, 0 otherwise
1000 return 1 if exists($reg_classes{"$name"});
1005 # Returns the register class for a given register.
1006 # @return class or undef
1010 $reg = substr($reg, 1) if ($reg =~ /!.*/);
1011 return $reg2class{"$reg"}{"class"} if (exists($reg2class{"$reg"}));
1016 # Returns the index of a given register within it's register class.
1017 # @return index or undef
1021 return $reg2class{"$reg"}{"index"} if (exists($reg2class{"$reg"}));
1026 # Remember the register class for each index in the given requirements.
1027 # We need this information for requirements like "in_sX" or "out_dX"
1028 # @return array of classes corresponding to the requirement for each index
1030 sub build_inout_idx_class {
1036 my $inout = ($is_in ? "in" : "out");
1038 if (exists($n->{"reg_req"}{"$inout"})) {
1039 my @reqs = @{ $n->{"reg_req"}{"$inout"} };
1041 for (my $idx = 0; $idx <= $#reqs; $idx++) {
1043 my ($req,) = split(/:/, $reqs[$idx]);
1045 if ($req eq "none") {
1047 } elsif (is_reg_class($req)) {
1050 my @regs = split(/ /, $req);
1051 GET_CLASS: foreach my $reg (@regs) {
1052 if ($reg =~ /!?(in|out)\_r\d+/ || $reg =~ /!in/) {
1053 $class = "UNKNOWN_CLASS";
1055 $class = get_reg_class($reg);
1056 if (!defined $class) {
1057 die("Fatal error: Could not get ".uc($inout)." register class for '$op' pos $idx (reg $reg) ... exiting.\n");
1065 push(@idx_class, $class);
1073 # Generates the function for a given $op and a given IN-index
1074 # which returns a subset of possible register from a register class
1075 # @return classname from which the subset is derived or undef and
1076 # pos which corresponds to in/out reference position or undef
1078 sub build_subset_class_func {
1084 my $different_pos = 0;
1090 my $limit_reqs; #used for name mangling
1092 # build function header
1097 my @regs = split(/ /, shift);
1100 my @idx_class = build_inout_idx_class($node, $op, !$is_in);
1102 # set/unset registers
1103 CHECK_REQS: foreach (@regs) {
1104 if (!$is_in && /(!)?in_r(\d+)/) {
1105 my $bit_pos = 1 << ($2 - 1);
1106 if ($different_pos & $bit_pos) {
1108 print STDERR "duplicate !in constraint\n";
1110 print STDERR "conflicting !in and in constraints\n";
1112 return (undef, undef, undef, undef);
1115 if ($same_pos & $bit_pos) {
1117 print STDERR "conflicting !in and in constraints\n";
1119 print STDERR "duplicate in constraint\n";
1121 return (undef, undef, undef, undef);
1125 $different_pos |= $bit_pos;
1127 $same_pos |= $bit_pos;
1130 $class = $idx_class[$2 - 1];
1135 if (substr($_, 0, 1) eq "!") {
1136 if (defined($neg) && $neg == 0) {
1137 # we have seen a positiv constraint as first one but this one is negative
1138 # this doesn't make sense
1139 print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n";
1140 return (undef, undef, undef, undef);
1143 if (!defined($neg)) {
1147 $_ = substr($_, 1); # skip '!'
1150 if (defined($neg) && $neg == 1) {
1151 # we have seen a negative constraint as first one but this one is positive
1152 # this doesn't make sense
1153 print STDERR "Mixed positive and negative constraints for the same slot are not allowed.\n";
1154 return (undef, undef, undef, undef);
1161 # check if register belongs to one of the given classes
1162 $temp = get_reg_class($_);
1163 if (!defined($temp)) {
1164 print STDERR "Unknown register '$_'!\n";
1165 return (undef, undef, undef, undef);
1169 if (!defined($class)) {
1171 } elsif ($class ne $temp) {
1172 # all registers must belong to the same class
1173 print STDERR "Registerclass mismatch. '$_' is not member of class '$class'.\n";
1174 return (undef, undef, undef, undef);
1177 # calculate position inside the initializer bitfield (only 32 bits per
1179 my $regidx = get_reg_index($_);
1180 my $arrayp = $regidx / 32;
1181 push(@{$limit_array[$arrayp]}, $_);
1182 $limit_reqs .= "$_ ";
1185 # don't allow ignore regs in negative constraints
1187 my @cur_class = @{ $reg_classes{"$class"} };
1188 for (my $idx = 0; $idx <= $#cur_class; $idx++) {
1189 if (defined($cur_class[$idx]{"type"}) && ($cur_class[$idx]{"type"} & 4)) {
1190 my $reg = $cur_class[$idx]{"name"};
1191 my $regix = get_reg_index($reg);
1192 my $arrayp = $regix / 32;
1193 push(@{$limit_array[$arrayp]}, $reg);
1194 $limit_reqs .= "$reg ";
1199 if ($has_limit == 1) {
1200 $limit_name = "${arch}_limit_".mangle_requirements($limit_reqs, $class);
1202 if(defined($limit_bitsets{$limit_name})) {
1203 $limit_name = $limit_bitsets{$limit_name};
1204 return ($class, $limit_name, $same_pos, $different_pos);
1207 $limit_bitsets{$limit_name} = $limit_name;
1209 push(@obst_limit_func, "static const unsigned " . $limit_name . "[] = { ");
1211 my $limitbitsetlen = $regclass2len{$class};
1212 my $limitarraylen = ($limitbitsetlen+31) / 32;
1213 for(my $i = 0; $i < $limitarraylen; $i++) {
1215 my $limitarraypart = $limit_array[$i];
1219 push(@obst_limit_func, ", ");
1223 $temp = "0xFFFFFFFF";
1225 foreach my $reg (@{$limitarraypart}) {
1228 } elsif(defined($temp)) {
1231 $temp .= "BIT(REG_".uc(${reg}).")";
1233 if(defined($temp)) {
1234 push(@obst_limit_func, "${temp}");
1236 push(@obst_limit_func, "0");
1239 push(@obst_limit_func, " };\n");
1242 return ($class, $limit_name, $same_pos, $different_pos);
1246 # Generate register requirements structure
1248 sub generate_requirements {
1249 my ($reqs, $flags) = split(/:/, shift);
1258 if (defined($flags)) {
1259 foreach my $f (split(/|/, $flags)) {
1261 push(@req_type_mask, "arch_register_req_type_ignore");
1262 } elsif ($f eq "S") {
1263 push(@req_type_mask, "arch_register_req_type_produces_sp");
1268 if ($reqs eq "none") {
1272 arch_register_req_type_none,
1273 NULL, /* regclass */
1274 NULL, /* limit bitset */
1276 0 /* different pos */
1280 } elsif (is_reg_class($reqs)) {
1281 push(@req_type_mask, "arch_register_req_type_normal");
1282 my $reqtype = join(" | ", @req_type_mask);
1287 & ${arch}_reg_classes[CLASS_${arch}_${class}],
1288 NULL, /* limit bitset */
1290 0 /* different pos */
1296 my ($regclass, $limit_bitset, $same_pos, $different_pos)
1297 = build_subset_class_func($node, $op, $idx, $is_in, $reqs, $flags);
1299 if (!defined($regclass)) {
1300 die("Fatal error: Could not build subset for requirements '$reqs' of '$op' pos $idx ... exiting.\n");
1303 if (defined($limit_bitset) && $limit_bitset ne "NULL") {
1304 push(@req_type_mask, "arch_register_req_type_limited");
1306 if ($same_pos != 0) {
1307 push(@req_type_mask, "arch_register_req_type_should_be_same");
1309 if ($different_pos != 0) {
1310 push(@req_type_mask, "arch_register_req_type_must_be_different");
1312 my $reqtype = join(" | ", @req_type_mask);
1314 if(!defined($limit_bitset)) {
1315 $limit_bitset = "NULL";
1322 & ${arch}_reg_classes[CLASS_${arch}_${class}],
1324 ${same_pos}, /* same pos */
1325 ${different_pos} /* different pos */
1331 my $name = "${arch}_requirements_".mangle_requirements($reqs, $class, $flags);
1332 if(defined($requirements{$name})) {
1335 $requirements{$name} = $name;
1336 push(@obst_reg_reqs, <<EOF);
1337 static const arch_register_req_t ${name} = ${result}