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-rw-r--r--sim/igen/ChangeLog4
-rwxr-xr-xsim/igen/compare_igen_models113
2 files changed, 117 insertions, 0 deletions
diff --git a/sim/igen/ChangeLog b/sim/igen/ChangeLog
index 8ef6284..436ba3b 100644
--- a/sim/igen/ChangeLog
+++ b/sim/igen/ChangeLog
@@ -1,3 +1,7 @@
+2002-08-22 Chris Demetriou <cgd@broadcom.com>
+
+ * compare_igen_models: New script.
+
2002-06-17 Andrew Cagney <cagney@redhat.com>
* gen.c (gen_entry_expand_opcode): Initialize ``value'' to -1 and
diff --git a/sim/igen/compare_igen_models b/sim/igen/compare_igen_models
new file mode 100755
index 0000000..3c3e46a
--- /dev/null
+++ b/sim/igen/compare_igen_models
@@ -0,0 +1,113 @@
+#!/bin/sh
+
+# Script to compare functions and instructions used by different igen models.
+# Copyright (C) 2002 Free Software Foundation, Inc.
+# Contributed by Broadcom Corporation (SiByte).
+#
+# This file is part of GDB, the GNU debugger.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# This is a simple-minded script to compare the functions and instructions
+# listed for two different models in one or more .igen files.
+#
+# It was intended to be useful to help factor models into common subsets.
+#
+# Things to note:
+#
+# * igen include directives are not processed!
+#
+# * functions and instructions with multiple definitions (e.g., based
+# on model names) are treated as being different. In other words,
+# if two models have different functions named 'foo', this
+# script will say that one has one of the function definitions, and
+# the other has the other.
+
+if [ "$#" -lt 2 ]; then
+ echo "usage: $0 model1 model2 [file ...]" 1>&2
+ exit 1
+fi
+model1="$1"
+model2="$2"
+shift; shift
+
+gawk -v model1="$model1" -v model2="$model2" -F: -- '
+BEGIN {
+ thang_count = 0
+}
+function thang_has_model(t, m) {
+# printf("thang_has_model(%s, %s) (@ %s:%d)\n", t, m,
+# thangs[t,"file"], thangs[t,"line"]);
+ if (thangs[t,"nmodels"] == 0) return 1;
+
+ for (j = 0; j < thangs[t,"nmodels"]; j++) {
+# printf("\tmodel \"%s\"\n", thangs[t,"models",j]);
+ if (thangs[t,"models",j] == m) return 1;
+ }
+# printf("\t-> 0\n");
+ return 0
+}
+function compare_models(m1, m2) {
+# printf("compare_models(%s, %s)\n", m1, m2);
+ seen_any=0
+ for (i = 0; i < thang_count; i++) {
+ if (thang_has_model(i, m1) && !thang_has_model(i, m2)) {
+ if (!seen_any) {
+ printf("Things in %s but not in %s:\n", m1, m2);
+ seen_any = 1
+ }
+ printf("%s:%d: %s\n", thangs[i,"file"],
+ thangs[i,"line"], thangs[i,"contents"]);
+ }
+ }
+}
+$0 ~ /^:/ && $2 == "model" {
+ # ignore.
+ # print "model " $0
+}
+($0 ~ /^:/ && $2 == "function") || \
+($0 ~ /^:/ && $2 == "internal") || \
+($0 ~ /^[0-9]/) {
+ # a function, internal, or instruction.
+
+ current_thang = thang_count
+ thang_count++
+
+ thangs[current_thang,"file"] = FILENAME
+ thangs[current_thang,"line"] = NR
+ thangs[current_thang,"contents"] = $0
+ thangs[current_thang,"nmodels"] = 0
+
+ if ($0 ~ /^:/) {
+ thangs[current_thang,"type"] = $2
+ } else {
+ thangs[current_thang,"type"] = "instruction"
+ }
+}
+$0 ~ /^\*/ {
+ split(substr($1, 2), tmp_models, /,/)
+ for (key in tmp_models) {
+ current_model = thangs[current_thang,"nmodels"]
+ thangs[current_thang,"nmodels"]++
+ thangs[current_thang,"models",current_model] = tmp_models[key]
+ }
+}
+END {
+ compare_models(model1, model2)
+ if (seen_any) printf("\n");
+ compare_models(model2, model1)
+}' "$@"
+
+exit "$?"