VectorICs: Lithium support for vector-based stores.

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 2837 matching lines @@
   AllowDeferredHandleDereference vector_structure_check;
   Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector();
   __ Move(vector_register, vector);
   // No need to allocate this register.
   FeedbackVectorICSlot slot = instr->hydrogen()->slot();
   int index = vector->GetIndex(slot);
   __ Move(slot_register, Smi::FromInt(index));
 }
 
 
+template <class T>
+void LCodeGen::EmitVectorStoreICRegisters(T* instr) {
+  Register vector_register = ToRegister(instr->temp_vector());
+  Register slot_register = ToRegister(instr->temp_slot());
+
+  AllowDeferredHandleDereference vector_structure_check;
+  Handle<TypeFeedbackVector> vector = instr->hydrogen()->feedback_vector();
+  __ Move(vector_register, vector);
+  FeedbackVectorICSlot slot = instr->hydrogen()->slot();
+  int index = vector->GetIndex(slot);
+  __ Move(slot_register, Smi::FromInt(index));
+}
+
+
 void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) {
   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());
   EmitVectorLoadICRegisters<LLoadGlobalGeneric>(instr);
   ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL;
   Handle<Code> ic = CodeFactory::LoadICInOptimizedCode(isolate(), mode,
@@ skipping 1333 matching lines @@
                         hinstr->PointersToHereCheckForValue());
   }
 }
 
 
 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()));
 
+  if (instr->hydrogen()->HasVectorAndSlot()) {
+    EmitVectorStoreICRegisters<LStoreNamedGeneric>(instr);
+  }
+
   __ Move(StoreDescriptor::NameRegister(), instr->hydrogen()->name());
-  Handle<Code> ic =
-      StoreIC::initialize_stub(isolate(), instr->language_mode(),
-                               instr->hydrogen()->initialization_state());
+  Handle<Code> ic = CodeFactory::StoreICInOptimizedCode(
+                        isolate(), instr->language_mode(),
+                        instr->hydrogen()->initialization_state()).code();
   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 238 matching lines @@
   }
 }
 
 
 void LCodeGen::DoStoreKeyedGeneric(LStoreKeyedGeneric* instr) {
   DCHECK(ToRegister(instr->context()).is(rsi));
   DCHECK(ToRegister(instr->object()).is(StoreDescriptor::ReceiverRegister()));
   DCHECK(ToRegister(instr->key()).is(StoreDescriptor::NameRegister()));
   DCHECK(ToRegister(instr->value()).is(StoreDescriptor::ValueRegister()));
 
+  if (instr->hydrogen()->HasVectorAndSlot()) {
+    EmitVectorStoreICRegisters<LStoreKeyedGeneric>(instr);
+  }
+
   Handle<Code> ic = CodeFactory::KeyedStoreICInOptimizedCode(
                         isolate(), instr->language_mode(),
                         instr->hydrogen()->initialization_state()).code();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
 
 
 void LCodeGen::DoMaybeGrowElements(LMaybeGrowElements* instr) {
   class DeferredMaybeGrowElements final : public LDeferredCode {
    public:
@@ skipping 1500 matching lines @@
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64