X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fscripts%2Fgenerate_emitter.pl;h=7c17a00e1c7a6fe4c4f1b358debb3912d29949f5;hb=dca6d8baaf0d1714900f43c3b54aecf90ed9bd14;hp=eb883de0810e25b642ceb07fa75048f3e84dd842;hpb=3c93cdbd6de4a9d4dfeafa5d26dfe69a071cb593;p=libfirm

diff --git a/ir/be/scripts/generate_emitter.pl b/ir/be/scripts/generate_emitter.pl
index eb883de08..7c17a00e1 100755
--- a/ir/be/scripts/generate_emitter.pl
+++ b/ir/be/scripts/generate_emitter.pl
@@ -1,5 +1,24 @@
 #!/usr/bin/perl -w
 
+#
+# Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
+#
+# This file is part of libFirm.
+#
+# This file may be distributed and/or modified under the terms of the
+# GNU General Public License version 2 as published by the Free Software
+# Foundation and appearing in the file LICENSE.GPL included in the
+# packaging of this file.
+#
+# Licensees holding valid libFirm Professional Edition licenses may use
+# this file in accordance with the libFirm Commercial License.
+# Agreement provided with the Software.
+#
+# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE.
+#
+
 # This script generates C code which emits assembler code for the
 # assembler ir nodes. It takes a "emit" key from the node specification
 # and substitutes lines starting with . with a corresponding fprintf().
@@ -8,12 +27,17 @@
 
 use strict;
 use Data::Dumper;
+use File::Basename;
 
-my $specfile   = $ARGV[0];
-my $target_dir = $ARGV[1];
+my $myname = $0;
+our $specfile   = $ARGV[0];
+our $target_dir = $ARGV[1];
 
 our $arch;
+our $comment_string = "/*";
+our $comment_string_end = "*/" ;
 our %nodes;
+our $new_emit_syntax = 1;
 
 # include spec file
 
@@ -21,131 +45,180 @@ my $return;
 
 no strict "subs";
 unless ($return = do $specfile) {
-	warn "couldn't parse $specfile: $@" if $@;
-	warn "couldn't do $specfile: $!"    unless defined $return;
-	warn "couldn't run $specfile"       unless $return;
+	die "Fatal error: couldn't parse $specfile: $@" if $@;
+	die "Fatal error: couldn't do $specfile: $!"    unless defined $return;
+	die "Fatal error: couldn't run $specfile"       unless $return;
 }
 use strict "subs";
 
+if ($new_emit_syntax) {
+	my $newscript = dirname($myname) . "/generate_emitter_new.pl";
+	unless ($return = do "$newscript") {
+		die "Fatal error: couldn't parse $newscript: $@" if $@;
+		die "Fatal error: couldn't do $newscript: $!"    unless defined $return;
+		die "Fatal error: couldn't run $newscript"       unless $return;
+	}
+	exit;
+}
+
+my $comment_string_quoted = quotemeta($comment_string);
+
 my $target_c = $target_dir."/gen_".$arch."_emitter.c";
 my $target_h = $target_dir."/gen_".$arch."_emitter.h";
 
 # stacks for output
 my @obst_func;   # stack for the emit functions
-my @obst_header;  # stack for the function prototypes
+my @obst_register;  # stack for emitter register code
 my $line;
 
 foreach my $op (keys(%nodes)) {
 	my %n = %{ $nodes{"$op"} };
 
 	# skip this node description if no emit information is available
-	next if (!$n{"emit"} || length($n{"emit"}) < 1);
+	next if (!defined($n{"emit"}));
 
-	$line = "void emit_".$arch."_".$op."(ir_node *n, emit_env_t *env)";
-	push(@obst_header, $line.";\n");
-	push(@obst_func, $line." {\n  FILE *F = env->out;\n");
+	$line = "static void emit_".$arch."_".$op."(const ir_node *n, $arch\_emit_env_t *env)";
+
+	push(@obst_register, "  BE_EMIT($op);\n");
 
+	if($n{"emit"} eq "") {
+		push(@obst_func, $line." {\n");
+		push(@obst_func, "}\n\n");
+		next;
+	}
+
+	push(@obst_func, $line." {\n  FILE *F = env->out;\n");
+	push(@obst_func, "  char cmd_buf[256], cmnt_buf[256];\n");
+	push(@obst_func, "  const lc_arg_env_t *arg_env = $arch\_get_arg_env();\n\n");
 	my @emit = split(/\n/, $n{"emit"});
 
 	foreach my $template (@emit) {
 		# substitute only lines, starting with a '.'
 		if ($template =~ /^(\d*)\.\s*/) {
-			my @params;
-			my $res    = "";
 			my $indent = "  "; # default indent is 2 spaces
 
 			$indent = " " x $1 if ($1 && $1 > 0);
 			# remove indent, dot and trailing spaces
 			$template =~ s/^\d*\.\s*//;
-			# substitute all format parameter
-			while ($template =~ /\%([ASD])(\d)|\%([COM])|\%(\w+)/) {
-				$res  .= $`;      # get everything before the match
-
-				if ($1 && $1 eq "S") {
-					push(@params, "n");
-					$res .= "%".$2."S"; # substitute %Sx with %xS
-				}
-				elsif ($1 && $1 eq "D") {
-					push(@params, "n");
-					$res .= "%".$2."D"; # substitute %Dx with %xD
-				}
-				elsif ($1 && $1 eq "A") {
-					push(@params, "get_irn_n(n, ".($2 - 1).")");
-					$res .= "%+F";
-				}
-				elsif ($3) {
-					push(@params, "n");
-					$res .= "%".$3;
-				}
-				elsif ($4) {  # backend provided function to call, has to return a string
-					push(@params, $4."(n)");
-					$res .= "\%s";
+			my $fmt = $template;
+			my $cnt = 0;
+			my $buf = 'cmd_buf';
+
+			push(@obst_func, $indent."cmnt_buf[0] = '\\0';\n");
+			foreach $template (split(/$comment_string_quoted/, $fmt, 2)) {
+				my @params;
+				my $res = "";
+				$cnt++;
+
+				$template =~ s/(\\t)*$//;
+
+				if ($cnt == 2) {
+					# add the comment begin string
+					$res .= $comment_string;
+					$buf  = "cmnt_buf";
 				}
 
-				$template = $'; # scan everything after the match
-			}
-			$res  .= $template; # get the remaining string
+				# substitute all format parameter
+				while ($template =~ /(\%\%)|\%([ASDX])(\d)|\%([COM])|\%(\w+)/) {
+					$res  .= $`;      # get everything before the match
+
+					if ($1) {
+						$res .= "%%";
+					}
+					elsif ($2 && $2 eq "S") {
+						push(@params, "n");
+						$res .= "%".$3."S"; # substitute %Sx with %xS
+					}
+					elsif ($2 && $2 eq "D") {
+						push(@params, "n");
+						$res .= "%".$3."D"; # substitute %Dx with %xD
+					}
+					elsif ($2 && $2 eq "X") {
+						push(@params, "n");
+						$res .= "%".$3."X"; # substitute %Xx with %xX
+					}
+					elsif ($2 && $2 eq "A") {
+						push(@params, "get_irn_n(n, ".($3 - 1).")");
+						$res .= "%+F";
+					}
+					elsif ($4) {
+						push(@params, "n");
+						$res .= "%".$4;
+					}
+					elsif ($5) {  # backend provided function to call, has to return a string
+						push(@params, $5."(n, env)");
+						$res .= "\%s";
+					}
+
+					$template = $'; # scan everything after the match
+				}
+				$res .= $template; # get the remaining string
 
-			my $parm = "";
-			$parm = ", ".join(", ", @params) if (@params);
+				my $parm = "";
+				$parm = ", ".join(", ", @params) if (@params);
 
-			push(@obst_func, $indent.'lc_efprintf('.$arch.'_get_arg_env(), F, "\t'.$res.'\n"'.$parm.');'."\n");
+				push(@obst_func, $indent.'lc_esnprintf(arg_env, '.$buf.', 256, "'.$res.'"'.$parm.');'."\n");
+			}
+			push(@obst_func, $indent.'lc_efprintf(arg_env, F, "\t%-35s %-60s '.$comment_string.' %+F (%+G) '.$comment_string_end.'\n", cmd_buf, cmnt_buf, n, n);'."\n");
 		}
 		else {
 			push(@obst_func, $template,"\n");
 		}
 	}
+
 	push(@obst_func, "}\n\n");
 }
 
-open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
+open(OUT, ">$target_h") || die("Fatal error: Could not open $target_h, reason: $!\n");
 
 my $creation_time = localtime(time());
 
 my $tmp = uc($arch);
 
 print OUT<<EOF;
-#ifndef _GEN_$tmp\_EMITTER_H_
-#define _GEN_$tmp\_EMITTER_H_
-
 /**
- * Function prototypes for the emitter functions.
- * DO NOT EDIT THIS FILE, your changes will be lost.
- * Edit $specfile instead.
- * created by: $0 $specfile $target_dir
- * date:       $creation_time
+ * \@file
+ * \@brief Function prototypes for the emitter functions.
+ * \@note  DO NOT EDIT THIS FILE, your changes will be lost.
+ *        Edit $specfile instead.
+ *        created by: $0 $specfile $target_dir
+ * \@date  $creation_time
  */
+#ifndef FIRM_BE_${tmp}_GEN_${tmp}_EMITTER_H
+#define FIRM_BE_${tmp}_GEN_${tmp}_EMITTER_H
 
 #include "irnode.h"
 #include "$arch\_emitter.h"
 
-EOF
+void $arch\_register_spec_emitters(void);
 
-print OUT @obst_header;
+#endif
 
-print OUT "#endif /* _GEN_$tmp\_EMITTER_H_ */\n";
+EOF
 
 close(OUT);
 
-open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
+open(OUT, ">$target_c") || die("Fatal error: Could not open $target_c, reason: $!\n");
 
 $creation_time = localtime(time());
 
 print OUT<<EOF;
 /**
- * Generated functions to emit code for assembler ir nodes.
- * DO NOT EDIT THIS FILE, your changes will be lost.
- * Edit $specfile instead.
- * created by: $0 $specfile $target_dir
- * date:       $creation_time
+ * \@file
+ * \@brief  Generated functions to emit code for assembler ir nodes.
+ * \@note   DO NOT EDIT THIS FILE, your changes will be lost.
+ *         Edit $specfile instead.
+ *         created by: $0 $specfile $target_dir
+ * \@date   $creation_time
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
-#endif
 
 #include <stdio.h>
 
 #include "irnode.h"
+#include "irop_t.h"
+#include "irprog_t.h"
+
 #include "gen_$arch\_emitter.h"
 #include "$arch\_new_nodes.h"
 
@@ -153,4 +226,25 @@ EOF
 
 print OUT @obst_func;
 
+print OUT<<EOF;
+/**
+ * Enters the emitter functions for handled nodes into the generic
+ * pointer of an opcode.
+ */
+void $arch\_register_spec_emitters(void) {
+
+#define BE_EMIT(a) op_$arch\_##a->ops.generic = (op_func)emit_$arch\_##a
+
+  /* generated emitter functions */
+EOF
+
+print OUT @obst_register;
+
+print OUT<<EOF;
+
+#undef BE_EMIT
+}
+
+EOF
+
 close(OUT);