mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
5ff62e90d0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2985 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
//===-- StatisticReporter.cpp - Easy way to expose stats information -------==//
|
|
//
|
|
// This file implements 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;
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "Support/StatisticReporter.h"
|
|
#include "Support/CommandLine.h"
|
|
#include <iostream>
|
|
|
|
bool DebugFlag; // DebugFlag - Exported boolean set by the -debug option
|
|
|
|
// -stats - Command line option to cause transformations to emit stats about
|
|
// what they did.
|
|
//
|
|
static cl::opt<bool>
|
|
Enabled("stats", cl::desc("Enable statistics output from program"));
|
|
|
|
// -debug - Command line option to enable the DEBUG statements in the passes.
|
|
static cl::opt<bool, true>
|
|
Debug("debug", cl::desc("Enable debug output"), cl::Hidden,
|
|
cl::location(DebugFlag));
|
|
|
|
// Print information when destroyed, iff command line option is specified
|
|
void StatisticBase::destroy() const {
|
|
if (Enabled && hasSomeData()) {
|
|
std::cerr.width(7);
|
|
printValue(std::cerr);
|
|
std::cerr.width(0);
|
|
std::cerr << "\t" << Name << "\n";
|
|
}
|
|
}
|