1 files changed, 86 insertions, 0 deletions
diff --git a/sim/igen/filter.h b/sim/igen/filter.h
new file mode 100644
index 00000000000..c85b8039bc9
--- /dev/null
+++ b/sim/igen/filter.h
@@ -0,0 +1,86 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
+
+    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 of the License, 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.
+ 
+    */
+
+
+/* NB, an empty filter is NULL */
+typedef struct _filter filter;
+
+
+/* parse the list merging any flags into the filter */
+
+extern void filter_parse
+(filter **filters,
+ const char *filt);
+
+
+/* add the second filter to the first */
+
+extern void filter_add
+(filter **filters,
+ filter *add);
+
+
+
+/* returns true if SUB is a strict subset of SUPER.  For an empty set
+   is a member of any set */
+
+extern int filter_is_subset
+(filter *superset,
+ filter *subset);
+
+
+/* return true if there is at least one member common to the two
+   filters */
+
+extern int filter_is_common
+(filter *l,
+ filter *r);
+
+
+/* returns the index (pos + 1) if the name is in the filter.  */
+
+extern int filter_is_member
+(filter *set,
+ const char *flag);
+
+
+/* returns true if one of the flags is not present in the filter.
+   === !filter_is_subset (filter_parse (NULL, flags), filters) */
+int is_filtered_out
+(filter *filters,
+ const char *flags);
+
+
+/* returns the next member of the filter set that follows MEMBER.
+   Member does not need to be an elememt of the filter set.  Next of
+   "" is the first non-empty member */
+char *filter_next
+(filter *set,
+ char *member);
+
+
+
+/* for debugging */
+
+extern void dump_filter
+(lf *file,
+ char *prefix,
+ filter *filt,
+ char *suffix);