Explicitly request unsigned enum types when desired

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

diff --git a/include/llvm/Support/PassNameParser.h b/include/llvm/Support/PassNameParser.h
index 83653aa745308f6337cb71f0ca82da02a87ad6f2..c0914b1f2f080c6d53855061d131cd49281f4183 100644 (file)
--- a/include/llvm/Support/PassNameParser.h
+++ b/include/llvm/Support/PassNameParser.h
@@ -2,14 +2,14 @@
 //
 //                     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.
 //
 //===----------------------------------------------------------------------===//
 //
-// This file the PassNameParser and FilteredPassNameParser<> classes, which are
-// used to add command line arguments to a utility for all of the passes that
-// have been registered into the system.
+// This file contains the PassNameParser and FilteredPassNameParser<> classes,
+// which are used to add command line arguments to a utility for all of the
+// passes that have been registered into the system.
 //
 // The PassNameParser class adds ALL passes linked into the system (that are
 // creatable) as command line arguments to the tool (when instantiated with the
@@ -20,13 +20,15 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_SUPPORT_PASS_NAME_PARSER_H
-#define LLVM_SUPPORT_PASS_NAME_PARSER_H
+#ifndef LLVM_SUPPORT_PASSNAMEPARSER_H
+#define LLVM_SUPPORT_PASSNAMEPARSER_H
 
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/Pass.h"
-#include <algorithm>
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/raw_ostream.h"
+#include <cstring>
 
 namespace llvm {
 
@@ -39,6 +41,7 @@ class PassNameParser : public PassRegistrationListener,
   cl::Option *Opt;
 public:
   PassNameParser() : Opt(0) {}
+  virtual ~PassNameParser();
 
   void initialize(cl::Option &O) {
     Opt = &O;
@@ -65,29 +68,67 @@ public:
   virtual void passRegistered(const PassInfo *P) {
     if (ignorablePass(P) || !Opt) return;
     if (findOption(P->getPassArgument()) != getNumOptions()) {
-      cerr << "Two passes with the same argument (-"
+      errs() << "Two passes with the same argument (-"
            << P->getPassArgument() << ") attempted to be registered!\n";
-      abort();
+      llvm_unreachable(0);
     }
     addLiteralOption(P->getPassArgument(), P, P->getPassName());
-    Opt->addArgument(P->getPassArgument());
   }
   virtual void passEnumerate(const PassInfo *P) { passRegistered(P); }
 
-  // ValLessThan - Provide a sorting comparator for Values elements...
-  typedef std::pair<const char*,
-                    std::pair<const PassInfo*, const char*> > ValType;
-  static bool ValLessThan(const ValType &VT1, const ValType &VT2) {
-    return std::string(VT1.first) < std::string(VT2.first);
-  }
-
   // 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);
+    array_pod_sort(PNP->Values.begin(), PNP->Values.end(), ValLessThan);
     cl::parser<const PassInfo*>::printOptionInfo(O, GlobalWidth);
   }
+
+private:
+  // ValLessThan - Provide a sorting comparator for Values elements...
+  static int ValLessThan(const PassNameParser::OptionInfo *VT1,
+                         const PassNameParser::OptionInfo *VT2) {
+    return std::strcmp(VT1->Name, VT2->Name);
+  }
+};
+
+///===----------------------------------------------------------------------===//
+/// 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