Remove obsolete Code::optimizable flag.

src/objects-inl.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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 4900 matching lines @@
 
 
 inline void Code::set_can_have_weak_objects(bool value) {
   DCHECK(kind() == OPTIMIZED_FUNCTION);
   int previous = READ_UINT32_FIELD(this, kKindSpecificFlags1Offset);
   int updated = CanHaveWeakObjectsField::update(previous, value);
   WRITE_UINT32_FIELD(this, kKindSpecificFlags1Offset, updated);
 }
 
 
-bool Code::optimizable() {
-  DCHECK_EQ(FUNCTION, kind());
-  return READ_BYTE_FIELD(this, kOptimizableOffset) == 1;
-}
-
-
-void Code::set_optimizable(bool value) {
-  DCHECK_EQ(FUNCTION, kind());
-  WRITE_BYTE_FIELD(this, kOptimizableOffset, value ? 1 : 0);
-}
-
-
 bool Code::has_deoptimization_support() {
   DCHECK_EQ(FUNCTION, kind());
   byte flags = READ_BYTE_FIELD(this, kFullCodeFlags);
   return FullCodeFlagsHasDeoptimizationSupportField::decode(flags);
 }
 
 
 void Code::set_has_deoptimization_support(bool value) {
   DCHECK_EQ(FUNCTION, kind());
   byte flags = READ_BYTE_FIELD(this, kFullCodeFlags);
@@ skipping 791 matching lines @@
 BOOL_GETTER(SharedFunctionInfo,
             compiler_hints,
             optimization_disabled,
             kOptimizationDisabled)
 
 
 void SharedFunctionInfo::set_optimization_disabled(bool disable) {
   set_compiler_hints(BooleanBit::set(compiler_hints(),
                                      kOptimizationDisabled,
                                      disable));
-  // If disabling optimizations we reflect that in the code object so
-  // it will not be counted as optimizable code.
-  if ((code()->kind() == Code::FUNCTION) && disable) {
-    code()->set_optimizable(false);
-  }
 }
 
 
 LanguageMode SharedFunctionInfo::language_mode() {
   STATIC_ASSERT(LANGUAGE_END == 3);
   return construct_language_mode(
       BooleanBit::get(compiler_hints(), kStrictModeFunction),
       BooleanBit::get(compiler_hints(), kStrongModeFunction));
 }
 
@@ skipping 221 matching lines @@
 
 void SharedFunctionInfo::TryReenableOptimization() {
   int tries = opt_reenable_tries();
   set_opt_reenable_tries((tries + 1) & OptReenableTriesBits::kMax);
   // We reenable optimization whenever the number of tries is a large
   // enough power of 2.
   if (tries >= 16 && (((tries - 1) & tries) == 0)) {
     set_optimization_disabled(false);
     set_opt_count(0);
     set_deopt_count(0);
-    code()->set_optimizable(true);
   }
 }
 
 
 bool JSFunction::IsBuiltin() {
   return context()->global_object()->IsJSBuiltinsObject();
 }
 
 
 bool JSFunction::IsFromNativeScript() {
@@ skipping 17 matching lines @@
          SharedFunctionInfo::kDontAdaptArgumentsSentinel;
 }
 
 
 bool JSFunction::IsOptimized() {
   return code()->kind() == Code::OPTIMIZED_FUNCTION;
 }
 
 
 bool JSFunction::IsOptimizable() {
-  return code()->kind() == Code::FUNCTION && code()->optimizable();
+  return code()->kind() == Code::FUNCTION && !shared()->optimization_disabled();
 }
 
 
 bool JSFunction::IsMarkedForOptimization() {
   return code() == GetIsolate()->builtins()->builtin(
       Builtins::kCompileOptimized);
 }
 
 
 bool JSFunction::IsMarkedForConcurrentOptimization() {
@@ skipping 1594 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_