Fold the useful features of alist and alist_node into ilist, and

[oota-llvm.git] / include / llvm / Support / PassNameParser.h

diff --git a/include/llvm/Support/PassNameParser.h b/include/llvm/Support/PassNameParser.h
index fef63c3032f63cacd07d40e8b069e1c7e74d5b19..961638c43f49a3ecbffaf6cef297b02b463c49e1 100644 (file)
--- a/include/llvm/Support/PassNameParser.h
+++ b/include/llvm/Support/PassNameParser.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -24,9 +24,9 @@
 #define LLVM_SUPPORT_PASS_NAME_PARSER_H
 
 #include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
 #include "llvm/Pass.h"
 #include <algorithm>
+#include <cstring>
 
 namespace llvm {
 
@@ -65,12 +65,11 @@ public:
   virtual void passRegistered(const PassInfo *P) {
     if (ignorablePass(P) || !Opt) return;
     if (findOption(P->getPassArgument()) != getNumOptions()) {
-      llvm_cerr << "Two passes with the same argument (-"
-                << P->getPassArgument() << ") attempted to be registered!\n";
+      cerr << "Two passes with the same argument (-"
+           << P->getPassArgument() << ") attempted to be registered!\n";
       abort();
     }
     addLiteralOption(P->getPassArgument(), P, P->getPassName());
-    Opt->addArgument(P->getPassArgument());
   }
   virtual void passEnumerate(const PassInfo *P) { passRegistered(P); }
 
@@ -83,13 +82,51 @@ public:
 
   // printOptionInfo - Print out information about this option.  Override the
   // default implementation to sort the table before we print...
-  virtual void printOptionInfo(const cl::Option &O, unsigned GlobalWidth) const{
+  virtual void printOptionInfo(const cl::Option &O, size_t GlobalWidth) const {
     PassNameParser *PNP = const_cast<PassNameParser*>(this);
     std::sort(PNP->Values.begin(), PNP->Values.end(), ValLessThan);
     cl::parser<const PassInfo*>::printOptionInfo(O, GlobalWidth);
   }
 };
 
-} // End llvm namespace
+///===----------------------------------------------------------------------===//
+/// FilteredPassNameParser class - Make use of the pass registration
+/// mechanism to automatically add a command line argument to opt for
+/// each pass that satisfies a filter criteria.  Filter should return
+/// true for passes to be registered as command-line options.
+///
+template<typename Filter>
+class FilteredPassNameParser : public PassNameParser {
+private:
+  Filter filter;
 
+public:
+  bool ignorablePassImpl(const PassInfo *P) const { return !filter(*P); }
+};
+
+///===----------------------------------------------------------------------===//
+/// PassArgFilter - A filter for use with PassNameFilterParser that only
+/// accepts a Pass whose Arg matches certain strings.
+///
+/// Use like this:
+///
+/// extern const char AllowedPassArgs[] = "-anders_aa -dse";
+///
+/// static cl::list<
+///   const PassInfo*,
+///   bool,
+///   FilteredPassNameParser<PassArgFilter<AllowedPassArgs> > >
+/// PassList(cl::desc("Passes available:"));
+///
+/// Only the -anders_aa and -dse options will be available to the user.
+///
+template<const char *Args>
+class PassArgFilter {
+public:
+  bool operator()(const PassInfo &P) const {
+    return(std::strstr(Args, P.getPassArgument()));
+  }
+};
+
+} // End llvm namespace
 #endif