[turbofan] Add initial support for global specialization.

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/bailout-reason.h"
@@ skipping 99 matching lines @@
     kDeferredCalling = 1 << 0,
     kNonDeferredCalling = 1 << 1,
     kSavesCallerDoubles = 1 << 2,
     kRequiresFrame = 1 << 3,
     kMustNotHaveEagerFrame = 1 << 4,
     kDeoptimizationSupport = 1 << 5,
     kDebug = 1 << 6,
     kSerializing = 1 << 7,
     kFunctionContextSpecializing = 1 << 8,
     kFrameSpecializing = 1 << 9,
-    kInliningEnabled = 1 << 10,
-    kTypingEnabled = 1 << 11,
-    kDisableFutureOptimization = 1 << 12,
-    kSplittingEnabled = 1 << 13,
-    kTypeFeedbackEnabled = 1 << 14,
-    kDeoptimizationEnabled = 1 << 15,
-    kSourcePositionsEnabled = 1 << 16,
-    kFirstCompile = 1 << 17,
+    kNativeContextSpecializing = 1 << 10,
+    kInliningEnabled = 1 << 11,
+    kTypingEnabled = 1 << 12,
+    kDisableFutureOptimization = 1 << 13,
+    kSplittingEnabled = 1 << 14,
+    kTypeFeedbackEnabled = 1 << 15,
+    kDeoptimizationEnabled = 1 << 16,
+    kSourcePositionsEnabled = 1 << 17,
+    kFirstCompile = 1 << 18,
   };
 
   explicit CompilationInfo(ParseInfo* parse_info);
   CompilationInfo(CodeStub* stub, Isolate* isolate, Zone* zone);
   CompilationInfo(const char* debug_name, Isolate* isolate, Zone* zone);
   virtual ~CompilationInfo();
 
   ParseInfo* parse_info() const { return parse_info_; }
 
   // -----------------------------------------------------------
@@ skipping 82 matching lines @@
   }
 
   bool is_function_context_specializing() const {
     return GetFlag(kFunctionContextSpecializing);
   }
 
   void MarkAsFrameSpecializing() { SetFlag(kFrameSpecializing); }
 
   bool is_frame_specializing() const { return GetFlag(kFrameSpecializing); }
 
+  void MarkAsNativeContextSpecializing() {
+    SetFlag(kNativeContextSpecializing);
+  }
+
+  bool is_native_context_specializing() const {
+    return GetFlag(kNativeContextSpecializing);
+  }
+
   void MarkAsTypeFeedbackEnabled() { SetFlag(kTypeFeedbackEnabled); }
 
   bool is_type_feedback_enabled() const {
     return GetFlag(kTypeFeedbackEnabled);
   }
 
   void MarkAsDeoptimizationEnabled() { SetFlag(kDeoptimizationEnabled); }
 
   bool is_deoptimization_enabled() const {
     return GetFlag(kDeoptimizationEnabled);
@@ skipping 453 matching lines @@
   size_t info_zone_start_allocation_size_;
   base::ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_H_