#ifndef LLVM_ADT_STATISTIC_H
#define LLVM_ADT_STATISTIC_H
-#include "llvm/System/Atomic.h"
+#include "llvm/Support/Atomic.h"
+#include "llvm/Support/Valgrind.h"
namespace llvm {
+class raw_ostream;
class Statistic {
public:
Value = Val;
return init();
}
-
+
const Statistic &operator++() {
+ // FIXME: This function and all those that follow carefully use an
+ // atomic operation to update the value safely in the presence of
+ // concurrent accesses, but not to read the return value, so the
+ // return value is not thread safe.
sys::AtomicIncrement(&Value);
return init();
}
-
+
unsigned operator++(int) {
init();
unsigned OldValue = Value;
sys::AtomicIncrement(&Value);
return OldValue;
}
-
+
const Statistic &operator--() {
sys::AtomicDecrement(&Value);
return init();
}
-
+
unsigned operator--(int) {
init();
unsigned OldValue = Value;
sys::AtomicDecrement(&Value);
return OldValue;
}
-
+
const Statistic &operator+=(const unsigned &V) {
+ if (!V) return *this;
sys::AtomicAdd(&Value, V);
return init();
}
-
+
const Statistic &operator-=(const unsigned &V) {
+ if (!V) return *this;
sys::AtomicAdd(&Value, -V);
return init();
}
-
+
const Statistic &operator*=(const unsigned &V) {
sys::AtomicMul(&Value, V);
return init();
}
-
+
const Statistic &operator/=(const unsigned &V) {
sys::AtomicDiv(&Value, V);
return init();
bool tmp = Initialized;
sys::MemoryFence();
if (!tmp) RegisterStatistic();
+ TsanHappensAfter(this);
return *this;
}
void RegisterStatistic();
#define STATISTIC(VARNAME, DESC) \
static llvm::Statistic VARNAME = { DEBUG_TYPE, DESC, 0, 0 }
+/// \brief Enable the collection and printing of statistics.
+void EnableStatistics();
+
+/// \brief Check if statistics are enabled.
+bool AreStatisticsEnabled();
+
+/// \brief Print statistics to the file returned by CreateInfoOutputFile().
+void PrintStatistics();
+
+/// \brief Print statistics to the given output stream.
+void PrintStatistics(raw_ostream &OS);
+
} // End llvm namespace
#endif