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+(*
+ *
+ * Copyright (c) 2001-2002, 
+ *  George C. Necula    <necula@cs.berkeley.edu>
+ *  Scott McPeak        <smcpeak@cs.berkeley.edu>
+ *  Wes Weimer          <weimer@cs.berkeley.edu>
+ *  Ben Liblit          <liblit@cs.berkeley.edu>
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. The names of the contributors may not be used to endorse or promote
+ * products derived from this software without specific prior written
+ * permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *)
+
+(* rmtmps.mli *)
+(* remove unused things from cil files:               *)
+(*   - local temporaries introduced but not used      *)
+(*   - global declarations that are not used          *)
+(*   - types that are not used                        *)
+(*   - labels that are not used (gn)                  *)
+
+
+(* Some clients may wish to augment or replace the standard strategy
+ * for finding the initially reachable roots.  The optional
+ * "isRoot" argument to Rmtmps.removeUnusedTemps grants this
+ * flexibility.  If given, it should name a function which will return
+ * true if a given global should be treated as a retained root.
+ * 
+ * Function Rmtmps.isDefaultRoot encapsulates the default root
+ * collection, which consists of those global variables and functions
+ * which are visible to the linker and runtime loader.  A client's
+ * root filter can use this if the goal is to augment rather than
+ * replace the standard logic.  Function Rmtmps.isExportedRoot is an
+ * alternate name for this same function.
+ * 
+ * Function Rmtmps.isCompleteProgramRoot is an example of an alternate
+ * root collection.  This function assumes that it is operating on a
+ * complete program rather than just one object file.  It treats
+ * "main()" as a root, as well as any function carrying the
+ * "constructor" or "destructor" attribute.  All other globals are
+ * candidates for removal, regardless of their linkage.
+ * 
+ * Note that certain CIL- and CCured-specific pragmas induce
+ * additional global roots.  This functionality is always present, and
+ * is not subject to replacement by "filterRoots".
+ *)
+
+type rootsFilter = Cil.global -> bool
+val isDefaultRoot : rootsFilter
+val isExportedRoot : rootsFilter
+val isCompleteProgramRoot : rootsFilter
+
+(* process a complete Cil file *)
+val removeUnusedTemps: ?isRoot:rootsFilter -> Cil.file -> unit
+
+
+val keepUnused: bool ref (* Set this to true to turn off this module *)
+val rmUnusedInlines: bool ref (* Delete unused inline funcs in gcc mode? *)