mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-26 05:00:26 +00:00
96ef1b90c8
* Renamed StatisticReporter.h/cpp to Statistic.h/cpp
* Broke constructor to take two const char * arguments instead of one, so
that indendation can be taken care of automatically.
* Sort the list by pass name when printing
* Make sure to print all statistics as a group, instead of randomly when
the statistics dtors are called.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3999 91177308-0d34-0410-b5e6-96231b3b80d8
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
//===-- Support/Statistic.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_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
|
|
|
|
|
|
// StatisticBase - Nontemplated base class for Statistic<> class...
|
|
class StatisticBase {
|
|
const char *Name;
|
|
const char *Desc;
|
|
static unsigned NumStats;
|
|
protected:
|
|
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
|
|
// functions on the subclass.
|
|
void destroy() const;
|
|
|
|
// printValue - Overridden by template class to print out the value type...
|
|
virtual void printValue(std::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(std::ostream &o) const { o << Value; }
|
|
virtual bool hasSomeData() const { return Value != DataType(); }
|
|
public:
|
|
// Normal constructor, default initialize data item...
|
|
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, 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; }
|
|
};
|
|
|
|
#endif
|