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 C code which emits assembler code for the
23 # assembler ir nodes. It takes a "emit" key from the node specification
24 # and substitutes lines starting with . with a corresponding fprintf().
25 # Creation: 2005/11/07
37 our $finish_line_template = "be_emit_finish_line_gas(node);";
39 my $target_c = $target_dir."/gen_".$arch."_emitter.c";
40 my $target_h = $target_dir."/gen_".$arch."_emitter.h";
43 my @obst_func; # stack for the emit functions
44 my @obst_register; # stack for emitter register code
50 my $template = "\\t" . shift;
54 my @tokens = ($template =~ m/(?:[^%]|%%)+|\%[a-zA-Z_][a-zA-Z0-9_]*|%\./g);
57 if (/%\./) { last SWITCH; }
59 if(defined($emit_templates{$1})) {
60 push(@{$result}, "${indent}$emit_templates{$1}\n");
62 print "Warning: No emit_template defined for '$1'\n";
63 push(@{$result}, "${indent}$1(node);\n");
68 if (length($_) == 1) {
69 push(@{$result}, "${indent}be_emit_char('$_');\n");
71 push(@{$result}, "${indent}be_emit_cstring(\"$_\");\n");
75 push(@{$result}, "${indent}${finish_line_template}\n");
80 foreach my $op (keys(%nodes)) {
81 my %n = %{ $nodes{"$op"} };
83 # skip this node description if no emit information is available
84 next if (!defined($n{"emit"}));
86 $line = "static void emit_${arch}_${op}(const ir_node *node)";
88 push(@obst_register, " BE_EMIT($op);\n");
90 if($n{"emit"} eq "") {
91 push(@obst_func, $line." {\n");
92 push(@obst_func, "\t(void) node;\n");
93 push(@obst_func, "}\n\n");
97 push(@obst_func, $line." {\n");
99 my @emit = split(/\n/, $n{"emit"});
101 foreach my $template (@emit) {
102 # substitute only lines, starting with a '.'
103 if ($template =~ /^(\s*)\.\s*(.*)/) {
105 create_emitter(\@obst_func, $indent, $2);
107 push(@obst_func, "\t$template\n");
111 push(@obst_func, "}\n\n");
114 open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
116 my $creation_time = localtime(time());
123 * \@brief Function prototypes for the emitter functions.
124 * \@note DO NOT EDIT THIS FILE, your changes will be lost.
125 * Edit $specfile instead.
126 * created by: $0 $specfile $target_dir
127 * \@date $creation_time
129 #ifndef FIRM_BE_${tmp}_GEN_${tmp}_EMITTER_H
130 #define FIRM_BE_${tmp}_GEN_${tmp}_EMITTER_H
133 #include "${arch}_emitter.h"
135 void ${arch}_register_spec_emitters(void);
143 open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
145 $creation_time = localtime(time());
150 * \@brief Generated functions to emit code for assembler ir nodes.
151 * \@note DO NOT EDIT THIS FILE, your changes will be lost.
152 * Edit $specfile instead.
153 * created by: $0 $specfile $target_dir
154 * \@date $creation_time
162 #include "irprog_t.h"
164 #include "gen_${arch}_emitter.h"
165 #include "${arch}_new_nodes.h"
166 #include "${arch}_emitter.h"
170 print OUT @obst_func;
174 * Enters the emitter functions for handled nodes into the generic
175 * pointer of an opcode.
177 void $arch\_register_spec_emitters(void) {
179 #define BE_EMIT(a) op_$arch\_##a->ops.generic = (op_func)emit_$arch\_##a
181 /* generated emitter functions */
184 print OUT @obst_register;