Initial checkin of Statistic class

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2599 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-05-10 15:36:56 +00:00
parent f3f4fd50f2
commit fa10fdf5eb
3 changed files with 207 additions and 0 deletions

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//===-- Support/StatisticReporter.h - Easy way to expose stats ---*- C++ -*-==//
//
// 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
// at the end of a run, when the -stats command line option is enabled on the
// command line.
//
// 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");
//
// Later, in the code: ++NumInstEliminated;
//
//===----------------------------------------------------------------------===//
#ifndef SUPPORT_STATISTIC_REPORTER_H
#define SUPPORT_STATISTIC_REPORTER_H
#include <iosfwd>
// StatisticBase - Nontemplated base class for Statistic<> class...
class StatisticBase {
const char *Name;
protected:
StatisticBase(const char *name) : Name(name) {}
virtual ~StatisticBase() {}
// destroy - Called by subclass dtor so that we can still invoke virtual
// functions on the subclass.
void destroy() const;
// printValue - Overridden by template class to print out the value type...
virtual void printValue(ostream &o) const = 0;
// hasSomeData - Return true if some data has been aquired. Avoid printing
// lots of zero counts.
//
virtual bool hasSomeData() const = 0;
};
// Statistic Class - templated on the data type we are monitoring...
template <typename DataType=unsigned>
class Statistic : private StatisticBase {
DataType Value;
virtual void printValue(ostream &o) const { o << Value; }
virtual bool hasSomeData() const { return Value != DataType(); }
public:
// Normal constructor, default initialize data item...
Statistic(const char *name) : StatisticBase(name), Value(DataType()) {}
// Constructor to provide an initial value...
Statistic(const DataType &Val, const char *name)
: StatisticBase(name), 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; }
};
#endif

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//===-- Support/StatisticReporter.h - Easy way to expose stats ---*- C++ -*-==//
//
// 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
// at the end of a run, when the -stats command line option is enabled on the
// command line.
//
// 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");
//
// Later, in the code: ++NumInstEliminated;
//
//===----------------------------------------------------------------------===//
#ifndef SUPPORT_STATISTIC_REPORTER_H
#define SUPPORT_STATISTIC_REPORTER_H
#include <iosfwd>
// StatisticBase - Nontemplated base class for Statistic<> class...
class StatisticBase {
const char *Name;
protected:
StatisticBase(const char *name) : Name(name) {}
virtual ~StatisticBase() {}
// destroy - Called by subclass dtor so that we can still invoke virtual
// functions on the subclass.
void destroy() const;
// printValue - Overridden by template class to print out the value type...
virtual void printValue(ostream &o) const = 0;
// hasSomeData - Return true if some data has been aquired. Avoid printing
// lots of zero counts.
//
virtual bool hasSomeData() const = 0;
};
// Statistic Class - templated on the data type we are monitoring...
template <typename DataType=unsigned>
class Statistic : private StatisticBase {
DataType Value;
virtual void printValue(ostream &o) const { o << Value; }
virtual bool hasSomeData() const { return Value != DataType(); }
public:
// Normal constructor, default initialize data item...
Statistic(const char *name) : StatisticBase(name), Value(DataType()) {}
// Constructor to provide an initial value...
Statistic(const DataType &Val, const char *name)
: StatisticBase(name), 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; }
};
#endif

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//===-- Support/StatisticReporter.h - Easy way to expose stats ---*- C++ -*-==//
//
// 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
// at the end of a run, when the -stats command line option is enabled on the
// command line.
//
// 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");
//
// Later, in the code: ++NumInstEliminated;
//
//===----------------------------------------------------------------------===//
#ifndef SUPPORT_STATISTIC_REPORTER_H
#define SUPPORT_STATISTIC_REPORTER_H
#include <iosfwd>
// StatisticBase - Nontemplated base class for Statistic<> class...
class StatisticBase {
const char *Name;
protected:
StatisticBase(const char *name) : Name(name) {}
virtual ~StatisticBase() {}
// destroy - Called by subclass dtor so that we can still invoke virtual
// functions on the subclass.
void destroy() const;
// printValue - Overridden by template class to print out the value type...
virtual void printValue(ostream &o) const = 0;
// hasSomeData - Return true if some data has been aquired. Avoid printing
// lots of zero counts.
//
virtual bool hasSomeData() const = 0;
};
// Statistic Class - templated on the data type we are monitoring...
template <typename DataType=unsigned>
class Statistic : private StatisticBase {
DataType Value;
virtual void printValue(ostream &o) const { o << Value; }
virtual bool hasSomeData() const { return Value != DataType(); }
public:
// Normal constructor, default initialize data item...
Statistic(const char *name) : StatisticBase(name), Value(DataType()) {}
// Constructor to provide an initial value...
Statistic(const DataType &Val, const char *name)
: StatisticBase(name), 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; }
};
#endif