Encapsulate megamorphic load/tail-call in hydrogen

src/ic/arm64/ic-arm64.cc

Index: src/ic/arm64/ic-arm64.cc
diff --git a/src/ic/arm64/ic-arm64.cc b/src/ic/arm64/ic-arm64.cc
index 9ea622e9a3dcd57597f102dd3de0a10189009621..1f4647cbd7920f91b10649ccc211e73908590436 100644
--- a/src/ic/arm64/ic-arm64.cc
+++ b/src/ic/arm64/ic-arm64.cc
@@ -331,24 +331,6 @@ static MemOperand GenerateUnmappedArgumentsLookup(MacroAssembler* masm,
 }
 
 
-void LoadIC::GenerateMegamorphic(MacroAssembler* masm) {
-  // The return address is in lr.
-  Register receiver = LoadDescriptor::ReceiverRegister();
-  Register name = LoadDescriptor::NameRegister();
-  DCHECK(receiver.is(x1));
-  DCHECK(name.is(x2));
-
-  // Probe the stub cache.
-  Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
-      Code::ComputeHandlerFlags(Code::LOAD_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(masm, flags, receiver, name, x3,
-                                               x4, x5, x6);
-
-  // Cache miss: Jump to runtime.
-  GenerateMiss(masm);
-}
-
-
 void LoadIC::GenerateNormal(MacroAssembler* masm) {
   Register dictionary = x0;
   DCHECK(!dictionary.is(LoadDescriptor::ReceiverRegister()));
@@ -994,8 +976,8 @@ void StoreIC::GenerateMegamorphic(MacroAssembler* masm) {
   // Probe the stub cache.
   Code::Flags flags = Code::RemoveTypeAndHolderFromFlags(
       Code::ComputeHandlerFlags(Code::STORE_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(masm, flags, receiver, name, x3,
-                                               x4, x5, x6);
+  masm->isolate()->stub_cache()->GenerateProbe(masm, flags, false, receiver,
+                                               name, x3, x4, x5, x6);
 
   // Cache miss: Jump to runtime.
   GenerateMiss(masm);