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merge the Statistic and StatisticBase classes, eliminating virtual methods

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and eliminating #includes from the Statistic.h file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32282 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-12-06 18:20:44 +00:00
parent 11fd2f1af7
commit cf84504d7a
2 changed files with 11 additions and 47 deletions
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43
include/llvm/ADT/Statistic.h
View File

@ -26,53 +26,22 @@
#ifndef LLVM_ADT_STATISTIC_H
#define LLVM_ADT_STATISTIC_H
#include <ostream>
#include "llvm/Support/Compiler.h"
namespace llvm {
// StatisticBase - Nontemplated base class for Statistic class...
class StatisticBase {
class Statistic {
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...
}
// Out of line virtual dtor, to give the vtable etc a home.
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...
class Statistic : private StatisticBase {
unsigned Value;
virtual void printValue(std::ostream &o) const { o << Value; }
virtual bool hasSomeData() const { return Value != 0; }
static unsigned NumStats;
public:
// Normal constructor, default initialize data item...
Statistic(const char *name, const char *desc)
: StatisticBase(name, desc), Value(0) {}
// Constructor to provide an initial value...
Statistic(const unsigned &Val, const char *name, const char *desc)
: StatisticBase(name, desc), Value(Val) {}
: Name(name), Desc(desc), Value(0) {
++NumStats; // Keep track of how many stats are created...
}
// Print information when destroyed, iff command line option is specified
~Statistic() { destroy(); }
~Statistic();
// Allow use of this class as the value itself...
operator unsigned() const { return Value; }

15
lib/Support/Statistic.cpp
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@ -23,6 +23,7 @@
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/ADT/StringExtras.h"
#include <sstream>
#include <iostream>
#include <algorithm>
@ -31,7 +32,7 @@ using namespace llvm;
// GetLibSupportInfoOutputFile - Return a file stream to print our output on...
namespace llvm { extern std::ostream *GetLibSupportInfoOutputFile(); }
unsigned StatisticBase::NumStats = 0;
unsigned Statistic::NumStats = 0;
// -stats - Command line option to cause transformations to emit stats about
// what they did.
@ -61,19 +62,13 @@ struct StatRecord {
static std::vector<StatRecord> *AccumStats = 0;
// Out of line virtual dtor, to give the vtable etc a home.
StatisticBase::~StatisticBase() {
}
// Print information when destroyed, iff command line option is specified
void StatisticBase::destroy() const {
if (Enabled && hasSomeData()) {
Statistic::~Statistic() {
if (Enabled && Value != 0) {
if (AccumStats == 0)
AccumStats = new std::vector<StatRecord>();
std::ostringstream Out;
printValue(Out);
AccumStats->push_back(StatRecord(Out.str(), Name, Desc));
AccumStats->push_back(StatRecord(utostr(Value), Name, Desc));
}
if (--NumStats == 0 && AccumStats) {