Introduce FLAG_vector_ics.

src/x64/lithium-codegen-x64.cc

Index: src/x64/lithium-codegen-x64.cc
diff --git a/src/x64/lithium-codegen-x64.cc b/src/x64/lithium-codegen-x64.cc
index 407154c3d21ec5adf6093a8bbfe0982d49796775..18b230539b1afc193841f3c9fdb588b77f6d6352 100644
--- a/src/x64/lithium-codegen-x64.cc
+++ b/src/x64/lithium-codegen-x64.cc
@@ -2853,6 +2853,14 @@ void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) {
   ASSERT(ToRegister(instr->result()).is(rax));
 
   __ Move(LoadIC::NameRegister(), instr->name());
+  if (FLAG_vector_ics) {
+    Register vector = ToRegister(instr->temp_vector());
+    ASSERT(vector.is(LoadIC::VectorRegister()));
+    __ Move(vector, instr->hydrogen()->feedback_vector());
+    // No need to allocate this register.
+    ASSERT(LoadIC::SlotRegister().is(rax));
+    __ Move(LoadIC::SlotRegister(), Smi::FromInt(instr->hydrogen()->slot()));
+  }
   ContextualMode mode = instr->for_typeof() ? NOT_CONTEXTUAL : CONTEXTUAL;
   Handle<Code> ic = LoadIC::initialize_stub(isolate(), mode);
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
@@ -2993,6 +3001,14 @@ void LCodeGen::DoLoadNamedGeneric(LLoadNamedGeneric* instr) {
   ASSERT(ToRegister(instr->result()).is(rax));
 
   __ Move(LoadIC::NameRegister(), instr->name());
+  if (FLAG_vector_ics) {
+    Register vector = ToRegister(instr->temp_vector());
+    ASSERT(vector.is(LoadIC::VectorRegister()));
+    __ Move(vector, instr->hydrogen()->feedback_vector());
+    // No need to allocate this register.
+    ASSERT(LoadIC::SlotRegister().is(rax));
+    __ Move(LoadIC::SlotRegister(), Smi::FromInt(instr->hydrogen()->slot()));
+  }
   Handle<Code> ic = LoadIC::initialize_stub(isolate(), NOT_CONTEXTUAL);
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }
@@ -3289,6 +3305,15 @@ void LCodeGen::DoLoadKeyedGeneric(LLoadKeyedGeneric* instr) {
   ASSERT(ToRegister(instr->object()).is(LoadIC::ReceiverRegister()));
   ASSERT(ToRegister(instr->key()).is(LoadIC::NameRegister()));
 
+  if (FLAG_vector_ics) {
+    Register vector = ToRegister(instr->temp_vector());
+    ASSERT(vector.is(LoadIC::VectorRegister()));
+    __ Move(vector, instr->hydrogen()->feedback_vector());
+    // No need to allocate this register.
+    ASSERT(LoadIC::SlotRegister().is(rax));
+    __ Move(LoadIC::SlotRegister(), Smi::FromInt(instr->hydrogen()->slot()));
+  }
+
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Initialize();
   CallCode(ic, RelocInfo::CODE_TARGET, instr);
 }