Preliminary lowering of typed array loads in TF.

src/compiler.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_H_
 #define V8_COMPILER_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 #include "src/zone.h"
@@ skipping 63 matching lines @@
     kNonDeferredCalling = 1 << 7,
     kSavesCallerDoubles = 1 << 8,
     kRequiresFrame = 1 << 9,
     kMustNotHaveEagerFrame = 1 << 10,
     kDeoptimizationSupport = 1 << 11,
     kDebug = 1 << 12,
     kCompilingForDebugging = 1 << 13,
     kParseRestriction = 1 << 14,
     kSerializing = 1 << 15,
     kContextSpecializing = 1 << 16,
-    kInliningEnabled = 1 << 17
+    kInliningEnabled = 1 << 17,
+    kTypingEnabled = 1 << 18
   };
 
   CompilationInfo(Handle<JSFunction> closure, Zone* zone);
   CompilationInfo(Isolate* isolate, Zone* zone);
   virtual ~CompilationInfo();
 
   Isolate* isolate() const {
     return isolate_;
   }
   Zone* zone() { return zone_; }
@@ skipping 89 matching lines @@
   bool will_serialize() const { return GetFlag(kSerializing); }
 
   void MarkAsContextSpecializing() { SetFlag(kContextSpecializing); }
 
   bool is_context_specializing() const { return GetFlag(kContextSpecializing); }
 
   void MarkAsInliningEnabled() { SetFlag(kInliningEnabled); }
 
   bool is_inlining_enabled() const { return GetFlag(kInliningEnabled); }
 
+  void MarkAsTypingEnabled() { SetFlag(kTypingEnabled); }
+
+  bool is_typing_enabled() const { return GetFlag(kTypingEnabled); }
+
   bool IsCodePreAgingActive() const {
     return FLAG_optimize_for_size && FLAG_age_code && !will_serialize() &&
            !is_debug();
   }
 
   void SetParseRestriction(ParseRestriction restriction) {
     SetFlag(kParseRestriction, restriction != NO_PARSE_RESTRICTION);
   }
 
   ParseRestriction parse_restriction() const {
@@ skipping 503 matching lines @@
   Zone zone_;
   unsigned info_zone_start_allocation_size_;
   base::ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILER_H_