Hydrogen code stubs for vector-based ICs.

src/arm64/lithium-arm64.cc

Index: src/arm64/lithium-arm64.cc
diff --git a/src/arm64/lithium-arm64.cc b/src/arm64/lithium-arm64.cc
index ff3d45005f3489074f4d06f5fe291f0179a63ec6..2d5f7f297c3deea0be673e4a73fda67e8bd8ef9a 100644
--- a/src/arm64/lithium-arm64.cc
+++ b/src/arm64/lithium-arm64.cc
@@ -1564,9 +1564,17 @@ LInstruction* LChunkBuilder::DoTailCallThroughMegamorphicCache(
       UseFixed(instr->receiver(), LoadDescriptor::ReceiverRegister());
   LOperand* name_register =
       UseFixed(instr->name(), LoadDescriptor::NameRegister());
+  LOperand* slot = NULL;
+  LOperand* vector = NULL;
+  if (FLAG_vector_ics) {
+    slot = UseFixed(instr->slot(), VectorLoadICDescriptor::SlotRegister());
+    vector =
+        UseFixed(instr->vector(), VectorLoadICDescriptor::VectorRegister());
+  }
+
   // Not marked as call. It can't deoptimize, and it never returns.
   return new (zone()) LTailCallThroughMegamorphicCache(
-      context, receiver_register, name_register);
+      context, receiver_register, name_register, slot, vector);
 }
 
 
@@ -1675,7 +1683,7 @@ LInstruction* LChunkBuilder::DoLoadGlobalGeneric(HLoadGlobalGeneric* instr) {
   LOperand* global_object =
       UseFixed(instr->global_object(), LoadDescriptor::ReceiverRegister());
   LOperand* vector = NULL;
-  if (FLAG_vector_ics) {
+  if (instr->HasVectorAndSlot()) {
     vector = FixedTemp(VectorLoadICDescriptor::VectorRegister());
   }
 
@@ -1738,7 +1746,7 @@ LInstruction* LChunkBuilder::DoLoadKeyedGeneric(HLoadKeyedGeneric* instr) {
       UseFixed(instr->object(), LoadDescriptor::ReceiverRegister());
   LOperand* key = UseFixed(instr->key(), LoadDescriptor::NameRegister());
   LOperand* vector = NULL;
-  if (FLAG_vector_ics) {
+  if (instr->HasVectorAndSlot()) {
     vector = FixedTemp(VectorLoadICDescriptor::VectorRegister());
   }
 
@@ -1760,7 +1768,7 @@ LInstruction* LChunkBuilder::DoLoadNamedGeneric(HLoadNamedGeneric* instr) {
   LOperand* object =
       UseFixed(instr->object(), LoadDescriptor::ReceiverRegister());
   LOperand* vector = NULL;
-  if (FLAG_vector_ics) {
+  if (instr->HasVectorAndSlot()) {
     vector = FixedTemp(VectorLoadICDescriptor::VectorRegister());
   }