3 # This script generates the C code which creates the irop's and
4 # their coresponding node constructors for all operations in a given spec
5 # so they can be used as normal firm nodes.
12 my $specfile = $ARGV[0];
13 my $target_dir = $ARGV[1];
26 unless ($return = do $specfile) {
27 warn "couldn't parse $specfile: $@" if $@;
28 warn "couldn't do $specfile: $!" unless defined $return;
29 warn "couldn't run $specfile" unless $return;
33 my $target_c = $target_dir."/gen_".$arch."_new_nodes.c.inl";
34 my $target_h = $target_dir."/gen_".$arch."_new_nodes.h";
36 #print Dumper(%nodes);
38 # create c code file from specs
40 my @obst_opvar; # stack for the "ir_op *op_<arch>_<op-name> = NULL;" statements
41 my @obst_get_opvar; # stack for the get_op_<arch>_<op-name>() functions
42 my @obst_constructor; # stack for node constructor functions
43 my @obst_new_irop; # stack for the new_ir_op calls
44 my @obst_header; # stack for function prototypes
45 my @obst_is_archirn; # stack for the is_$arch_irn() function
46 my @obst_cmp_attr; # stack for the compare attribute functions
52 push(@obst_header, "void ".$arch."_create_opcodes(void);\n");
54 foreach my $op (keys(%nodes)) {
55 my %n = %{ $nodes{"$op"} };
62 push(@obst_opvar, "ir_op *op_$op = NULL;\n");
63 push(@obst_get_opvar, "ir_op *get_op_$op(void) { return op_$op; }\n");
64 push(@obst_get_opvar, "int is_$op(const ir_node *n) { return get_irn_op(n) == op_$op; }\n\n");
66 push(@obst_is_archirn, "is_$op(node)");
68 push(@obst_header, "int is_$op(const ir_node *n);\n");
71 # create compare attribute function if needed
72 if (exists($n{"cmp_attr"})) {
73 push(@obst_cmp_attr, "static int cmp_attr_$op(ir_node *a, ir_node *b) {\n");
74 push(@obst_cmp_attr, " asmop_attr *attr_a = get_ia32_attr(a);\n");
75 push(@obst_cmp_attr, " asmop_attr *attr_b = get_ia32_attr(b);\n");
76 push(@obst_cmp_attr, $n{"cmp_attr"});
77 push(@obst_cmp_attr, "}\n\n");
82 if (exists($n{"rd_constructor"}) && $n{"rd_constructor"} =~ /^NONE$/i) {
83 # we explicitly skip the constructor if the specification entry says NONE
86 $n{"comment"} = "construct $op" if(!exists($n{"comment"}));
87 $n{"comment"} =~ s/^"|"$//g; # remove "
88 $n{"comment"} = "/* ".$n{"comment"}." */\n";
89 push(@obst_constructor, $n{"comment"});
91 # create constructor head
92 my $complete_args = "";
96 $temp = "ir_node *new_rd_$op(dbg_info *db, ir_graph *irg, ir_node *block";
97 if (!exists($n{"args"}) || $n{"args"} =~ /^DEFAULT$/i) { # default args
98 if ($n{"arity"} !~ /^\d+$/) {
99 print "DEFAULT args require numeric arity (0, 1, 2, ...)! Ignoring op $orig_op!\n";
102 for (my $i = 1; $i <= $n{"arity"}; $i++) {
103 $complete_args .= ", ir_node *op".$i;
104 $arg_names .= ", op".$i;
106 $complete_args .= ", ir_mode *mode";
107 $arg_names .= ", mode";
109 else { # user defined args
110 for my $href (@{ $n{"args"} }) {
111 $href->{"type"} .= " " if ($href->{"type"} !~ / [*]?$/); # put a space between name and type if there is none at the end
112 $complete_args .= ", ".$href->{"type"}.$href->{"name"};
113 $arg_names .= ", ".$href->{"name"};
116 $complete_args = substr($complete_args, 2);
117 $temp .= ", $complete_args)";
118 push(@obst_constructor, $temp." {\n");
119 push(@obst_header, $temp.";\n");
121 # emit constructor code
122 if (!exists($n{"rd_constructor"}) || $n{"rd_constructor"} =~ /^DEFAULT$/i) { # default constructor
123 if ($n{"arity"} !~ /^\d+$/) {
124 print "DEFAULT rd_constructor requires arity 0,1,2 or 3! Ignoring op $orig_op!\n";
127 $temp = " asmop_attr *attr;\n";
128 $temp .= " ir_node *res;\n";
129 $temp .= " ir_node *in[$arity];\n" if ($arity > 0);
131 undef my $in_req_var;
132 undef my $out_req_var;
135 # set up static variables for requirements and registers
136 if (exists($n{"reg_req"})) {
137 my %req = %{ $n{"reg_req"} };
141 @in = @{ $req{"in"} } if (exists($req{"in"}));
143 @out = @{ $req{"out"} } if exists(($req{"out"}));
146 $in_req_var = "_in_req_$op";
147 $temp .= " static const $arch\_register_req_t *".$in_req_var."[] =\n {\n";
148 for ($idx = 0; $idx <= $#in; $idx++) {
149 $temp .= " ".$op."_reg_req_in_".$idx.",\n";
155 $out_req_var = "_out_req_$op";
156 $slots_var = "_slots_$op";
158 $temp .= " static const $arch\_register_req_t *".$out_req_var."[] =\n {\n";
159 for ($idx = 0; $idx <= $#out; $idx++) {
160 $temp .= " ".$op."_reg_req_out_".$idx.",\n";
163 $temp .= " static arch_register_t *".$slots_var."[".($#out + 1)."];\n";
168 $temp .= " if (!op_$op) {\n";
169 $temp .= " assert(0);\n";
170 $temp .= " return NULL;\n";
172 for (my $i = 1; $i <= $arity; $i++) {
173 $temp .= " in[".($i - 1)."] = op".$i.";\n";
175 $temp .= " res = new_ir_node(db, irg, block, op_$op, mode, $arity, ".($arity > 0 ? "in" : "NULL").");\n";
176 $temp .= " set_ia32_pncode(res, -1);\n";
177 $temp .= " res = optimize_node(res);\n";
178 $temp .= " irn_vrfy_irg(res, irg);\n\n";
181 $temp .= " attr = get_ia32_attr(res);\n\n";
182 $temp .= " attr->flags = 0; /* clear flags */\n";
183 if (exists($n{"spill"}) && $n{"spill"} == 0) {
184 $temp .= " attr->flags |= arch_irn_flags_dont_spill; /* op is NOT spillable */\n";
186 if (exists($n{"remat"}) && $n{"remat"} == 1) {
187 $temp .= " attr->flags |= arch_irn_flags_rematerializable; /* op can be easily recalulated */\n";
190 # allocate memory and set pointer to register requirements
191 if (exists($n{"reg_req"})) {
192 my %req = %{ $n{"reg_req"} };
195 @in = @{ $req{"in"} } if (exists($req{"in"}));
197 @out = @{ $req{"out"} } if exists(($req{"out"}));
199 $temp .= "\n /* set IN register requirements */\n";
201 $temp .= " attr->in_req = ".$in_req_var.";\n";
204 $temp .= " attr->in_req = NULL;\n";
207 $temp .= "\n /* set OUT register requirements and get space for registers */\n";
209 $temp .= " attr->out_req = ".$out_req_var.";\n";
210 $temp .= " attr->slots = ".$slots_var.";\n";
211 $temp .= " attr->n_res = ".($#out + 1).";\n";
214 $temp .= " attr->out_req = NULL;\n";
215 $temp .= " attr->slots = NULL;\n";
216 $temp .= " attr->n_res = 0;\n";
220 $temp .= "\n return res;\n";
222 push(@obst_constructor, $temp);
224 else { # user defined constructor
225 push(@obst_constructor, $n{"rd_constructor"});
228 # close constructor function
229 push(@obst_constructor, "}\n\n");
231 } # constructor creation
233 # set default values for state and flags if not given
234 $n{"state"} = "pinned" if (! exists($n{"state"}));
235 $n{"op_flags"} = "N" if (! exists($n{"op_flags"}));
237 push(@obst_new_irop, "\n memset(&ops, 0, sizeof(ops));\n");
238 push(@obst_new_irop, " ops.dump_node = dump_node_$arch;\n");
240 if ($cmp_attr_func) {
241 push(@obst_new_irop, " ops.node_cmp_attr = cmp_attr_$op;\n");
244 $temp = " op_$op = new_ir_op(get_next_ir_opcode(), \"$op\", op_pin_state_".$n{"state"}.", ".$n{"op_flags"};
245 $temp .= ", ".translate_arity($arity).", 0, sizeof(asmop_attr), &ops);\n";
246 push(@obst_new_irop, $temp);
251 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
253 print OUT "#include \"gen_$arch\_regalloc_if_t.h\"\n\n";
254 print OUT @obst_cmp_attr;
256 print OUT @obst_opvar;
258 print OUT @obst_get_opvar;
261 print OUT<<ENDOFISIRN;
263 static opcode ia32_opcode_start = -1;
264 static opcode ia32_opcode_end = -1;
266 int is_$arch\_irn(const ir_node *node) {
267 opcode opc = get_irn_opcode(node);
269 assert(ia32_opcode_start > 0 && "missing opcode init");
270 assert(ia32_opcode_end > 0 && "missing opcode init");
272 if (opc > ia32_opcode_start && opc < ia32_opcode_end)
280 print OUT @obst_constructor;
282 print OUT<<ENDOFMAIN;
284 * Creates the $arch specific firm operations
285 * needed for the assembler irgs.
287 void $arch\_create_opcodes(void) {
288 #define N irop_flag_none
289 #define L irop_flag_labeled
290 #define C irop_flag_commutative
291 #define X irop_flag_cfopcode
292 #define I irop_flag_ip_cfopcode
293 #define F irop_flag_fragile
294 #define Y irop_flag_forking
295 #define H irop_flag_highlevel
296 #define c irop_flag_constlike
297 #define K irop_flag_keep
301 ia32_opcode_start = get_next_ir_opcode();
305 print OUT @obst_new_irop;
306 print OUT "\n ia32_opcode_end = get_next_ir_opcode();\n";
311 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
313 print OUT @obst_header;
318 # Translates numeric arity into string constant.
320 sub translate_arity {
323 if ($arity =~ /^\d+$/) {
325 return "oparity_zero";
327 elsif ($arity == 1) {
328 return "oparity_unary";
330 elsif ($arity == 2) {
331 return "oparity_binary";
333 elsif ($arity == 3) {
334 return "oparity_trinary";
341 return "oparity_".$arity;