generate backend specific machine variable

diff --git a/ir/be/scripts/generate_machine.pl b/ir/be/scripts/generate_machine.pl
new file mode 100755 (executable)
index 0000000..660fee5
--- /dev/null
+++ b/ir/be/scripts/generate_machine.pl
@@ -0,0 +1,172 @@
+#!/usr/bin/perl -w
+
+# This script generates the data structures for the machine description.
+# Creation: 2006/10/20
+# $Id$
+
+use strict;
+use Data::Dumper;
+
+my $specfile   = $ARGV[0];
+my $target_dir = $ARGV[1];
+
+our $arch;
+our %cpu;
+
+# include spec file
+
+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;
+}
+use strict "subs";
+
+my $target_c = $target_dir."/gen_".$arch."_machine.c";
+my $target_h = $target_dir."/gen_".$arch."_machine.h";
+
+# stacks for output
+my @obst_unit_tp_defs;     # stack for execution unit type defines
+my @obst_unit_defs;        # stack for execution unit defines
+my @obst_init;             # stack for cpu description initialization
+my @obst_execunits;        # stack for execunit variables
+my @obst_execunits_header; # stack for execunit variables
+my @obst_init_unit_types;  # stack for unit type variable init
+
+my $num_unit_types = scalar(keys(%cpu));
+my $tmp            = uc($arch);
+my $idx            = 0;
+my $has_desc       = defined(%cpu);
+
+if ($has_desc) {
+       push(@obst_unit_tp_defs, "/* enum for execution unit types */\n");
+       push(@obst_unit_tp_defs, "enum $arch\_execunit_tp_vals {\n");
+}
+
+foreach my $unit_type (keys(%cpu)) {
+       my $tp_name   = "$tmp\_EXECUNIT_TP_$unit_type";
+       my @cur_tp    = @{ $cpu{"$unit_type"} };
+       my $num_units = scalar(@cur_tp);
+
+       push(@obst_init_unit_types, "\t{ $num_units, \"$unit_type\", $arch\_execution_units_$unit_type },\n");
+       push(@obst_execunits, "be_execution_unit_t $arch\_execution_units_".$unit_type."[$num_units];\n");
+       push(@obst_execunits_header, "extern be_execution_unit_t $arch\_execution_units_".$unit_type."[$num_units];\n");
+
+       push(@obst_unit_tp_defs, "\t$tp_name,\n");
+       push(@obst_init, "\n\t\t/* init of execution unit type $tp_name */\n");
+       push(@obst_init, "\t\tcur_unit_tp = &$arch\_execution_unit_types[$tp_name];\n");
+
+       push(@obst_unit_defs, "/* enum for execution units of type $unit_type */\n");
+       push(@obst_unit_defs, "enum $arch\_execunit_tp_$unit_type\_vals {\n");
+       foreach my $unit (@cur_tp) {
+               my $unit_name = "$tp_name\_$unit";
+
+               push(@obst_unit_defs, "\t$unit_name,\n");
+               push(@obst_init, "\t\t$arch\_execution_units_".$unit_type."[".$unit_name."].tp   = cur_unit_tp;\n");
+               push(@obst_init, "\t\t$arch\_execution_units_".$unit_type."[".$unit_name."].name = \"$unit\";\n");
+       }
+       push(@obst_unit_defs, "};\n\n");
+}
+
+push(@obst_unit_tp_defs, "};\n\n") if ($has_desc);
+
+open(OUT, ">$target_h") || die("Could not open $target_h, reason: $!\n");
+
+my $creation_time = localtime(time());
+
+print OUT<<EOF;
+#ifndef _GEN_$tmp\_MACHINE_H_
+#define _GEN_$tmp\_MACHINE_H_
+
+/**
+ * Function prototypes for the machine description.
+ * DO NOT EDIT THIS FILE, your changes will be lost.
+ * Edit $specfile instead.
+ * created by: $0 $specfile $target_dir
+ * date:       $creation_time
+ */
+
+#include "../bemachine.h"
+
+/**
+ * Returns the $arch machine description.
+ */
+const be_machine_t *$arch\_get_machine_description(void);
+
+EOF
+
+print OUT @obst_execunits_header, "\n";
+print OUT @obst_unit_tp_defs;
+print OUT @obst_unit_defs;
+
+print OUT<<EOF;
+
+#endif /* _GEN_$tmp\_MACHINE_H_ */
+
+EOF
+
+close(OUT);
+
+open(OUT, ">$target_c") || die("Could not open $target_c, reason: $!\n");
+
+$creation_time = localtime(time());
+
+print OUT<<EOF;
+/**
+ * Generated functions for machine description interface.
+ * DO NOT EDIT THIS FILE, your changes will be lost.
+ * Edit $specfile instead.
+ * created by: $0 $specfile $target_dir
+ * date:       $creation_time
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gen_$arch\_machine.h"
+
+EOF
+
+print OUT @obst_execunits;
+
+print OUT<<EOF;
+
+static be_execution_unit_type_t $arch\_execution_unit_types[] = {
+EOF
+
+print OUT @obst_init_unit_types;
+
+print OUT<<EOF;
+};
+
+static be_machine_t $arch\_cpu = {
+       $num_unit_types,
+       $arch\_execution_unit_types
+};
+
+/**
+ * Returns the $arch machines description
+ */
+const be_machine_t *$arch\_get_machine_description(void) {
+       static int initialized = 0;
+
+       if (! initialized) {
+               be_execution_unit_type_t *cur_unit_tp;
+EOF
+
+print OUT @obst_init;
+
+print OUT<<EOF;
+
+               initialized = 1;
+       }
+
+       return &$arch\_cpu;
+}
+
+EOF
+
+close(OUT);