A64: add missing files.

src/a64/instrument-a64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (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 {
+
+enum InstrumentState {
+  InstrumentStateDisable = 0,
+  InstrumentStateEnable = 1
+};
+
+
+enum CounterType {
+  Gauge = 0,      // Gauge counters reset themselves after reading.
+  Cumulative = 1  // Cumulative counters keep their value after reading.
+};
+
+
+class Counter {
  public:
-  static void Type(CompilationInfo* info);
+  Counter(const char* name, CounterType type = Gauge);
 
-  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) { }
-
-  DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
+  void Increment();
+  void Enable();
+  void Disable();
+  bool IsEnabled();
+  uint64_t count();
+  const char* name();
+  CounterType type();
 
  private:
-  explicit AstTyper(CompilationInfo* info);
+  char name_[kCounterNameMaxLength];
+  uint64_t count_;
+  bool enabled_;
+  CounterType type_;
+};
 
-  CompilationInfo* info_;
-  TypeFeedbackOracle oracle_;
 
-  TypeFeedbackOracle* oracle() { return &oracle_; }
-  Zone* zone() const { return info_->zone(); }
+class Instrument: public DecoderVisitor {
+ public:
+  explicit Instrument(const char* datafile = NULL,
+    uint64_t sample_period = kDefaultInstrumentationSamplingPeriod);
+  ~Instrument();
 
-  void VisitDeclarations(ZoneList<Declaration*>* declarations);
-  void VisitStatements(ZoneList<Statement*>* statements);
+  // Declare all Visitor functions.
+  #define DECLARE(A) void Visit##A(Instruction* instr);
+  VISITOR_LIST(DECLARE)
+  #undef DECLARE
 
-#define DECLARE_VISIT(type) virtual void Visit##type(type* node);
-  AST_NODE_LIST(DECLARE_VISIT)
-#undef DECLARE_VISIT
+ private:
+  void Update();
+  void Enable();
+  void Disable();
+  void DumpCounters();
+  void DumpCounterNames();
+  void DumpEventMarker(unsigned marker);
+  void HandleInstrumentationEvent(unsigned event);
+  Counter* GetCounter(const char* name);
 
-  DISALLOW_COPY_AND_ASSIGN(AstTyper);
+  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_