cleanup some long-dead code

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

diff --git a/include/Support/Statistic.h b/include/Support/Statistic.h
index 8f6ed79da8fb4910e28b216d0e1f778f79899600..c95db3f82cb9349d2fa5bd2ad9775ee67c4f6009 100644 (file)
--- a/include/Support/Statistic.h
+++ b/include/Support/Statistic.h
@@ -1,4 +1,11 @@
-//===-- Support/StatisticReporter.h - Easy way to expose stats ---*- C++ -*-==//
+//===-- Support/Statistic.h - Easy way to expose stats ----------*- C++ -*-===//
+// 
+//                     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 defines the 'Statistic' class, which is designed to be an easy way
 // to expose various success metrics from passes.  These statistics are printed
@@ -8,43 +15,28 @@
 // This is useful for reporting information like the number of instructions
 // simplified, optimized or removed by various transformations, like this:
 //
-// static Statistic<> NumInstEliminated("GCSE - Number of instructions killed");
+// static Statistic<> NumInstsKilled("gcse", "Number of instructions killed");
 //
-// Later, in the code: ++NumInstEliminated;
+// Later, in the code: ++NumInstsKilled;
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef SUPPORT_STATISTIC_REPORTER_H
-#define SUPPORT_STATISTIC_REPORTER_H
+#ifndef SUPPORT_STATISTIC_H
+#define SUPPORT_STATISTIC_H
 
 #include <iosfwd>
 
-// DebugFlag - This boolean is set to true if the '-debug' command line option
-// is specified.  This should probably not be referenced directly, instead, use
-// the DEBUG macro below.
-//
-extern bool DebugFlag;
-
-// DEBUG macro - This macro should be used by passes to emit debug information.
-// In the '-debug' option is specified on the commandline, and if this is a
-// debug build, then the code specified as the option to the macro will be
-// executed.  Otherwise it will not be.  Example:
-//
-// DEBUG(cerr << "Bitset contains: " << Bitset << "\n");
-//
-#ifdef NDEBUG
-#define DEBUG(X)
-#else
-#define DEBUG(X) \
-  do { if (DebugFlag) { X; } } while (0)
-#endif
-
+namespace llvm {
 
 // StatisticBase - Nontemplated base class for Statistic<> class...
 class StatisticBase {
   const char *Name;
+  const char *Desc;
+  static unsigned NumStats;
 protected:
-  StatisticBase(const char *name) : Name(name) {}
+  StatisticBase(const char *name, const char *desc) : Name(name), Desc(desc) {
+    ++NumStats;  // Keep track of how many stats are created...
+  }
   virtual ~StatisticBase() {}
 
   // destroy - Called by subclass dtor so that we can still invoke virtual
@@ -69,22 +61,27 @@ class Statistic : private StatisticBase {
   virtual bool hasSomeData() const { return Value != DataType(); }
 public:
   // Normal constructor, default initialize data item...
-  Statistic(const char *name) : StatisticBase(name), Value(DataType()) {}
+  Statistic(const char *name, const char *desc)
+    : StatisticBase(name, desc), Value(DataType()) {}
 
   // Constructor to provide an initial value...
-  Statistic(const DataType &Val, const char *name)
-    : StatisticBase(name), Value(Val) {}
+  Statistic(const DataType &Val, const char *name, const char *desc)
+    : StatisticBase(name, desc), Value(Val) {}
 
   // Print information when destroyed, iff command line option is specified
   ~Statistic() { destroy(); }
 
   // Allow use of this class as the value itself...
-  inline operator DataType() const { return Value; }
-  inline const DataType &operator=(DataType Val) { Value = Val; return Value; }
-  inline const DataType &operator++() { return ++Value; }
-  inline DataType operator++(int) { return Value++; }
-  inline const DataType &operator+=(const DataType &V) { return Value += V; }
-  inline const DataType &operator-=(const DataType &V) { return Value -= V; }
+  operator DataType() const { return Value; }
+  const Statistic &operator=(DataType Val) { Value = Val; return *this; }
+  const Statistic &operator++() { ++Value; return *this; }
+  DataType operator++(int) { return Value++; }
+  const Statistic &operator--() { --Value; return *this; }
+  DataType operator--(int) { return Value--; }
+  const Statistic &operator+=(const DataType &V) { Value += V; return *this; }
+  const Statistic &operator-=(const DataType &V) { Value -= V; return *this; }
 };
 
+} // End llvm namespace
+
 #endif