Reland of [counters] moving runtime counters to counter.h

src/counters.cc

Index: src/counters.cc
diff --git a/src/counters.cc b/src/counters.cc
index e8dea2e0736d58ef5db3b608e1dc1cdca09c70e6..709c6fb15d8b73b84c8980c677371977b095e440 100644
--- a/src/counters.cc
+++ b/src/counters.cc
@@ -3,6 +3,8 @@
 // found in the LICENSE file.
 
 #include "src/counters.h"
+
+#include <iomanip>
 
 #include "src/base/platform/platform.h"
 #include "src/isolate.h"
@@ -193,5 +195,104 @@
 #undef HM
 }
 
+class RuntimeCallStatEntries {
+ public:
+  void Print(std::ostream& os) {
+    if (total_call_count > 0) {
+      std::sort(entries.rbegin(), entries.rend());
+      os << std::setw(50) << "Runtime Function/C++ Builtin" << std::setw(10)
+         << "Time" << std::setw(18) << "Count" << std::endl
+         << std::string(86, '=') << std::endl;
+      for (Entry& entry : entries) {
+        entry.SetTotal(total_time, total_call_count);
+        entry.Print(os);
+      }
+      os << std::string(86, '-') << std::endl;
+      Entry("Total", total_time, total_call_count).Print(os);
+    }
+  }
+
+  void Add(const char* name, base::TimeDelta time, uint32_t count) {
+    entries.push_back(Entry(name, time, count));
+    total_time += time;
+    total_call_count += count;
+  }
+
+ private:
+  class Entry {
+   public:
+    Entry(const char* name, base::TimeDelta time, uint64_t count)
+        : name_(name),
+          time_(time.InMilliseconds()),
+          count_(count),
+          time_percent_(100),
+          count_percent_(100) {}
+
+    bool operator<(const Entry& other) const {
+      if (time_ < other.time_) return true;
+      if (time_ > other.time_) return false;
+      return count_ < other.count_;
+    }
+
+    void Print(std::ostream& os) {
+      os.precision(2);
+      os << std::fixed;
+      os << std::setw(50) << name_;
+      os << std::setw(8) << time_ << "ms ";
+      os << std::setw(6) << time_percent_ << "%";
+      os << std::setw(10) << count_ << " ";
+      os << std::setw(6) << count_percent_ << "%";
+      os << std::endl;
+    }
+
+    void SetTotal(base::TimeDelta total_time, uint64_t total_count) {
+      time_percent_ = 100.0 * time_ / total_time.InMilliseconds();
+      count_percent_ = 100.0 * count_ / total_count;
+    }
+
+   private:
+    const char* name_;
+    int64_t time_;
+    uint64_t count_;
+    double time_percent_;
+    double count_percent_;
+  };
+
+  uint64_t total_call_count = 0;
+  base::TimeDelta total_time;
+  std::vector<Entry> entries;
+};
+
+void RuntimeCallStats::Print(std::ostream& os) {
+  RuntimeCallStatEntries entries;
+
+#define PRINT_COUNTER(name, nargs, ressize)                                    \
+  if (this->Count_Runtime_##name > 0) {                                        \
+    entries.Add(#name, this->Time_Runtime_##name, this->Count_Runtime_##name); \
+  }
+  FOR_EACH_INTRINSIC(PRINT_COUNTER)
+#undef PRINT_COUNTER
+#define PRINT_COUNTER(name, type)                                              \
+  if (this->Count_Builtin_##name > 0) {                                        \
+    entries.Add(#name, this->Time_Builtin_##name, this->Count_Builtin_##name); \
+  }
+  BUILTIN_LIST_C(PRINT_COUNTER)
+#undef PRINT_COUNTER
+  entries.Print(os);
+}
+
+void RuntimeCallStats::Reset() {
+#define RESET_COUNTER(name, nargs, ressize) \
+  Count_Runtime_##name = 0;                 \
+  Time_Runtime_##name = base::TimeDelta();
+  FOR_EACH_INTRINSIC(RESET_COUNTER)
+#undef RESET_COUNTER
+#define RESET_COUNTER(name, type) \
+  Count_Builtin_##name = 0;       \
+  Time_Builtin_##name = base::TimeDelta();
+  BUILTIN_LIST_C(RESET_COUNTER)
+#undef RESET_COUNTER
+}
+
 }  // namespace internal
 }  // namespace v8