A64: add missing files.

src/a64/instrument-a64.h

Index: src/a64/instrument-a64.h
diff --git a/src/typing.h b/src/a64/instrument-a64.h
similarity index 50%
copy from src/typing.h
copy to src/a64/instrument-a64.h
index d8708c2ccbe6f456ff76bdb53d7d530e4ced405e..08dc1b2ad17308ccb5cbd4ff8042ead090c06746 100644
--- a/src/typing.h
+++ b/src/a64/instrument-a64.h
@@ -25,53 +25,84 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#ifndef V8_TYPING_H_
-#define V8_TYPING_H_
+#ifndef V8_A64_INSTRUMENT_A64_H_
+#define V8_A64_INSTRUMENT_A64_H_
 
-#include "v8.h"
-
-#include "allocation.h"
-#include "ast.h"
-#include "compiler.h"
-#include "type-info.h"
-#include "zone.h"
-#include "scopes.h"
+#include "globals.h"
+#include "utils.h"
+#include "a64/decoder-a64.h"
+#include "a64/constants-a64.h"
+#include "a64/instrument-a64.h"
 
 namespace v8 {
 namespace internal {
 
+const int kCounterNameMaxLength = 256;
+const uint64_t kDefaultInstrumentationSamplingPeriod = 1 << 22;
 
-class AstTyper: public AstVisitor {
- public:
-  static void Type(CompilationInfo* info);
 
-  void* operator new(size_t size, Zone* zone) {
-    return zone->New(static_cast<int>(size));
-  }
-  void operator delete(void* pointer, Zone* zone) { }
-  void operator delete(void* pointer) { }
+enum InstrumentState {
+  InstrumentStateDisable = 0,
+  InstrumentStateEnable = 1
+};
 
-  DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
 
- private:
-  explicit AstTyper(CompilationInfo* info);
+enum CounterType {
+  Gauge = 0,      // Gauge counters reset themselves after reading.
+  Cumulative = 1  // Cumulative counters keep their value after reading.
+};
 
-  CompilationInfo* info_;
-  TypeFeedbackOracle oracle_;
 
-  TypeFeedbackOracle* oracle() { return &oracle_; }
-  Zone* zone() const { return info_->zone(); }
+class Counter {
+ public:
+  Counter(const char* name, CounterType type = Gauge);
 
-  void VisitDeclarations(ZoneList<Declaration*>* declarations);
-  void VisitStatements(ZoneList<Statement*>* statements);
+  void Increment();
+  void Enable();
+  void Disable();
+  bool IsEnabled();
+  uint64_t count();
+  const char* name();
+  CounterType type();
 
-#define DECLARE_VISIT(type) virtual void Visit##type(type* node);
-  AST_NODE_LIST(DECLARE_VISIT)
-#undef DECLARE_VISIT
+ private:
+  char name_[kCounterNameMaxLength];
+  uint64_t count_;
+  bool enabled_;
+  CounterType type_;
+};
+
+
+class Instrument: public DecoderVisitor {
+ public:
+  explicit Instrument(const char* datafile = NULL,
+    uint64_t sample_period = kDefaultInstrumentationSamplingPeriod);
+  ~Instrument();
+
+  // Declare all Visitor functions.
+  #define DECLARE(A) void Visit##A(Instruction* instr);
+  VISITOR_LIST(DECLARE)
+  #undef DECLARE
 
-  DISALLOW_COPY_AND_ASSIGN(AstTyper);
+ private:
+  void Update();
+  void Enable();
+  void Disable();
+  void DumpCounters();
+  void DumpCounterNames();
+  void DumpEventMarker(unsigned marker);
+  void HandleInstrumentationEvent(unsigned event);
+  Counter* GetCounter(const char* name);
+
+  void InstrumentLoadStore(Instruction* instr);
+  void InstrumentLoadStorePair(Instruction* instr);
+
+  std::list<Counter*> counters_;
+
+  FILE *output_stream_;
+  uint64_t sample_period_;
 };
 
 } }  // namespace v8::internal
 
-#endif  // V8_TYPING_H_
+#endif  // V8_A64_INSTRUMENT_A64_H_