1 //===-- Statistic.cpp - Easy way to expose stats information --------------===//
8 //===----------------------------------------------------------------------===//
11 // way to expose various success metrics from passes.  These statistics are
12 // printed at the end of a run, when the -stats command line option is enabled
22 //===----------------------------------------------------------------------===//
37 /// -stats - Command line option to cause transformations to emit stats about
43     cl::desc("Enable statistics output from program (available with Asserts)"));
46 static cl::opt<bool> StatsAsJSON("stats-json",
47                                  cl::desc("Display statistics as json data"));
50 /// StatisticInfo - This class is used in a ManagedStatic so that it is created
52 /// llvm_shutdown is called.  We print statistics from the destructor.
59   /// Sort statistics by debugtype,name,description.
73 /// RegisterStatistic - The first time a statistic is bumped, this method is
81       StatInfo->addStatistic(this);  in RegisterStatistic()
108     if (int Cmp = std::strcmp(LHS->getDebugType(), RHS->getDebugType()))  in sort()
111     if (int Cmp = std::strcmp(LHS->getName(), RHS->getName()))  in sort()
114     return std::strcmp(LHS->getDesc(), RHS->getDesc()) < 0;  in sort()
125                          (unsigned)utostr(Stats.Stats[i]->getValue()).size());  in PrintStatistics()
127                          (unsigned)std::strlen(Stats.Stats[i]->getDebugType()));  in PrintStatistics()
132   // Print out the statistics header...  in PrintStatistics()
133   OS << "===" << std::string(73, '-') << "===\n"  in PrintStatistics()
134      << "                          ... Statistics Collected ...\n"  in PrintStatistics()
135      << "===" << std::string(73, '-') << "===\n\n";  in PrintStatistics()
137   // Print all of the statistics.  in PrintStatistics()
139     OS << format("%*u %-*s - %s\n",  in PrintStatistics()
140                  MaxValLen, Stats.Stats[i]->getValue(),  in PrintStatistics()
141                  MaxDebugTypeLen, Stats.Stats[i]->getDebugType(),  in PrintStatistics()
142                  Stats.Stats[i]->getDesc());  in PrintStatistics()
164   // Print all of the statistics.  in PrintStatisticsJSON()
170     write_json_string_escaped(OS, Stat->getDebugType());  in PrintStatisticsJSON()
172     write_json_string_escaped(OS, Stat->getName());  in PrintStatisticsJSON()
173     OS << "\": " << Stat->getValue();  in PrintStatisticsJSON()
184   // Statistics not enabled?  in PrintStatistics()
195   // Check if the -stats option is set instead of checking  in PrintStatistics()
196   // !Stats.Stats.empty().  In release builds, Statistics operators  in PrintStatistics()
201     (*OutStream) << "Statistics are disabled.  "  in PrintStatistics()
202                  << "Build with asserts or with -DLLVM_ENABLE_STATS\n";  in PrintStatistics()