Initial KLEE checkin.

 - Lots more tweaks, documentation, and web page content is needed,
   but this should compile & work on OS X & Linux.


git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 84 insertions, 0 deletions

diff --git a/lib/Basic/Statistics.cpp b/lib/Basic/Statistics.cpp
new file mode 100644
index 00000000..9c95a891
--- /dev/null
+++ b/lib/Basic/Statistics.cpp
@@ -0,0 +1,84 @@
+//===-- Statistics.cpp ----------------------------------------------------===//
+//
+//                     The KLEE Symbolic Virtual Machine
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "klee/Statistics.h"
+
+#include <vector>
+
+using namespace klee;
+
+StatisticManager::StatisticManager()
+  : enabled(true),
+    globalStats(0),
+    indexedStats(0),
+    contextStats(0),
+    index(0) {
+}
+
+StatisticManager::~StatisticManager() {
+  if (globalStats) delete[] globalStats;
+  if (indexedStats) delete[] indexedStats;
+}
+
+void StatisticManager::useIndexedStats(unsigned totalIndices) {  
+  if (indexedStats) delete[] indexedStats;
+  indexedStats = new uint64_t[totalIndices * stats.size()];
+  memset(indexedStats, 0, sizeof(*indexedStats) * totalIndices * stats.size());
+}
+
+void StatisticManager::registerStatistic(Statistic &s) {
+  if (globalStats) delete[] globalStats;
+  s.id = stats.size();
+  stats.push_back(&s);
+  globalStats = new uint64_t[stats.size()];
+  memset(globalStats, 0, sizeof(*globalStats)*stats.size());
+}
+
+int StatisticManager::getStatisticID(const std::string &name) const {
+  for (unsigned i=0; i<stats.size(); i++)
+    if (stats[i]->getName() == name)
+      return i;
+  return -1;
+}
+
+Statistic *StatisticManager::getStatisticByName(const std::string &name) const {
+  for (unsigned i=0; i<stats.size(); i++)
+    if (stats[i]->getName() == name)
+      return stats[i];
+  return 0;
+}
+
+StatisticManager *klee::theStatisticManager = 0;
+
+static StatisticManager &getStatisticManager() {
+  static StatisticManager sm;
+  theStatisticManager = &sm;
+  return sm;
+}
+
+/* *** */
+
+Statistic::Statistic(const std::string &_name, 
+                     const std::string &_shortName) 
+  : name(_name), 
+    shortName(_shortName) {
+  getStatisticManager().registerStatistic(*this);
+}
+
+Statistic::~Statistic() {
+}
+
+Statistic &Statistic::operator +=(const uint64_t addend) {
+  theStatisticManager->incrementStatistic(*this, addend);
+  return *this;
+}
+
+uint64_t Statistic::getValue() const {
+  return theStatisticManager->getValue(*this);
+}