mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
7ed47a1335
discussion of this change. Boy are my fingers tired. ;-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45411 91177308-0d34-0410-b5e6-96231b3b80d8
76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
//===-- llvm/ADT/Statistic.h - Easy way to expose stats ---------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file 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 metrics from passes. These statistics are printed at the
|
|
// end of a run (from llvm_shutdown), when the -stats command line option is
|
|
// passed 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 NumInstsKilled("gcse", "Number of instructions killed");
|
|
//
|
|
// Later, in the code: ++NumInstsKilled;
|
|
//
|
|
// NOTE: Statistics *must* be declared as global variables.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ADT_STATISTIC_H
|
|
#define LLVM_ADT_STATISTIC_H
|
|
|
|
namespace llvm {
|
|
|
|
class Statistic {
|
|
public:
|
|
const char *Name;
|
|
const char *Desc;
|
|
unsigned Value : 31;
|
|
bool Initialized : 1;
|
|
|
|
unsigned getValue() const { return Value; }
|
|
const char *getName() const { return Name; }
|
|
const char *getDesc() const { return Desc; }
|
|
|
|
/// construct - This should only be called for non-global statistics.
|
|
void construct(const char *name, const char *desc) {
|
|
Name = name; Desc = desc;
|
|
Value = 0; Initialized = 0;
|
|
}
|
|
|
|
// Allow use of this class as the value itself.
|
|
operator unsigned() const { return Value; }
|
|
const Statistic &operator=(unsigned Val) { Value = Val; return init(); }
|
|
const Statistic &operator++() { ++Value; return init(); }
|
|
unsigned operator++(int) { init(); return Value++; }
|
|
const Statistic &operator--() { --Value; return init(); }
|
|
unsigned operator--(int) { init(); return Value--; }
|
|
const Statistic &operator+=(const unsigned &V) { Value += V; return init(); }
|
|
const Statistic &operator-=(const unsigned &V) { Value -= V; return init(); }
|
|
const Statistic &operator*=(const unsigned &V) { Value *= V; return init(); }
|
|
const Statistic &operator/=(const unsigned &V) { Value /= V; return init(); }
|
|
|
|
protected:
|
|
Statistic &init() {
|
|
if (!Initialized) RegisterStatistic();
|
|
return *this;
|
|
}
|
|
void RegisterStatistic();
|
|
};
|
|
|
|
// STATISTIC - A macro to make definition of statistics really simple. This
|
|
// automatically passes the DEBUG_TYPE of the file into the statistic.
|
|
#define STATISTIC(VARNAME, DESC) \
|
|
static Statistic VARNAME = { DEBUG_TYPE, DESC, 0, 0 }
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|