emit premonomorphic ics for loads/stores in optimized code

src/x64/lithium-codegen-x64.cc

 // Copyright 2013 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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 2868 matching lines @@
   DCHECK(ToRegister(instr->context()).is(rsi));
   DCHECK(ToRegister(instr->global_object())
              .is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->result()).is(rax));
 
   __ Move(LoadDescriptor::NameRegister(), instr->name());
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr);
   }
   ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL;
-  Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(isolate(), mode).code();
+  Handle<Code> ic =
+      CodeFactory::LoadICInOptimizedCode(isolate(), mode, false).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoStoreGlobalCell(LStoreGlobalCell* instr) {
   Register value = ToRegister(instr->value());
   Handle<Cell> cell_handle = instr->hydrogen()->cell().handle();
 
   // If the cell we are storing to contains the hole it could have
   // been deleted from the property dictionary. In that case, we need
@@ skipping 122 matching lines @@
 
 void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
   DCHECK(ToRegister(instr->object()).is(LoadDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->result()).is(rax));
 
   __ Move(LoadDescriptor::NameRegister(), instr->name());
   if (FLAG_vector_ics) {
     EmitVectorLoadICRegisters<LLoadNamedGeneric>(instr);
   }
-  Handle<Code> ic =
-      CodeFactory::LoadICInOptimizedCode(isolate(), NOT_CONTEXTUAL).code();
+  bool emit_megamorphic = instr->hydrogen()->emit_megamorphic();
+  Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(
+                        isolate(), NOT_CONTEXTUAL, emit_megamorphic).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoLoadFunctionPrototype(LLoadFunctionPrototype* instr) {
   Register function = ToRegister(instr->function());
   Register result = ToRegister(instr->result());
 
   // Get the prototype or initial map from the function.
   __ movp(result,
@@ skipping 1219 matching lines @@
   }
 }
 
 
 void LCodeGen::DoStoreNamedGeneric(LStoreNamedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
   DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister()));
 
   __ Move(StoreDescriptor::NameRegister(), instr->hydrogen()->name());
-  Handle<Code> ic = StoreIC::initialize_stub(isolate(), instr->language_mode());
+  bool emit_megamorphic = instr->hydrogen()->emit_megamorphic();
+  Handle<Code> ic = StoreIC::initialize_stub(isolate(), instr->language_mode(),
+                                             emit_megamorphic);
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoBoundsCheck(LBoundsCheck* instr) {
   Representation representation = instr->hydrogen()->length()->representation();
   DCHECK(representation.Equals(instr->hydrogen()->index()->representation()));
   DCHECK(representation.IsSmiOrInteger32());
 
   Condition cc = instr->hydrogen()->allow_equality() ? below : below_equal;
@@ skipping 1647 matching lines @@
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64