A64: Synchronize with r15545.

src/hydrogen-infer-representation.h

Index: src/hydrogen-infer-representation.h
diff --git a/src/a64/debugger-a64.h b/src/hydrogen-infer-representation.h
similarity index 74%
copy from src/a64/debugger-a64.h
copy to src/hydrogen-infer-representation.h
index 50480cc268a49f53fafc1650e79d73de573524ed..7c605696c4b956152bdd9dfc74c83e80569e3714 100644
--- a/src/a64/debugger-a64.h
+++ b/src/hydrogen-infer-representation.h
@@ -25,32 +25,33 @@
 // (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_A64_DEBUGGER_A64_H_
-#define V8_A64_DEBUGGER_A64_H_
+#ifndef V8_HYDROGEN_INFER_REPRESENTATION_H_
+#define V8_HYDROGEN_INFER_REPRESENTATION_H_
 
-#if defined(USE_SIMULATOR)
-
-#include "globals.h"
-#include "utils.h"
-#include "a64/constants-a64.h"
-#include "a64/simulator-a64.h"
+#include "hydrogen.h"
 
 namespace v8 {
 namespace internal {
 
 
-class Debugger : public Simulator {
+class HInferRepresentationPhase : public HPhase {
  public:
-  Debugger(Decoder* decoder, FILE* stream = stdout)
-    : Simulator(decoder, NULL, stream) {}
+  explicit HInferRepresentationPhase(HGraph* graph)
+      : HPhase("H_Infer representations", graph),
+        worklist_(8, zone()),
+        in_worklist_(graph->GetMaximumValueID(), zone()) { }
+
+  void Run();
+  void AddToWorklist(HValue* current);
 
-  // Functions overloading.
-  void VisitException(Instruction* instr);
+ private:
+  ZoneList<HValue*> worklist_;
+  BitVector in_worklist_;
+
+  DISALLOW_COPY_AND_ASSIGN(HInferRepresentationPhase);
 };
 
 
 } }  // namespace v8::internal
 
-#endif  // USE_SIMULATOR
-
-#endif  // V8_A64_DEBUGGER_A64_H_
+#endif  // V8_HYDROGEN_INFER_REPRESENTATION_H_