[ic] Split megamorphic stub cache in two caches (for loads and for stores).

src/s390/code-stubs-s390.cc

 // Copyright 2014 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.
 
 #if V8_TARGET_ARCH_S390
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 3573 matching lines @@
   // Is it a fixed array?
   __ bind(&try_array);
   __ LoadP(scratch1, FieldMemOperand(feedback, HeapObject::kMapOffset));
   __ CompareRoot(scratch1, Heap::kFixedArrayMapRootIndex);
   __ bne(&not_array, Label::kNear);
   HandleArrayCases(masm, feedback, receiver_map, scratch1, r9, true, &miss);
 
   __ bind(&not_array);
   __ CompareRoot(feedback, Heap::kmegamorphic_symbolRootIndex);
   __ bne(&miss);
-  Code::Flags code_flags =
-      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::LOAD_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(masm, Code::LOAD_IC, code_flags,
-                                               receiver, name, feedback,
-                                               receiver_map, scratch1, r9);
+  masm->isolate()->load_stub_cache()->GenerateProbe(
+      masm, receiver, name, feedback, receiver_map, scratch1, r9);
 
   __ bind(&miss);
   LoadIC::GenerateMiss(masm);
 
   __ bind(&load_smi_map);
   __ LoadRoot(receiver_map, Heap::kHeapNumberMapRootIndex);
   __ b(&compare_map);
 }
 
 void KeyedLoadICStub::Generate(MacroAssembler* masm) {
@@ skipping 110 matching lines @@
   __ CompareRoot(scratch1, Heap::kFixedArrayMapRootIndex);
   __ bne(&not_array);
 
   Register scratch2 = ip;
   HandleArrayCases(masm, feedback, receiver_map, scratch1, scratch2, true,
                    &miss);
 
   __ bind(&not_array);
   __ CompareRoot(feedback, Heap::kmegamorphic_symbolRootIndex);
   __ bne(&miss);
-  Code::Flags code_flags =
-      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::STORE_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, Code::STORE_IC, code_flags, receiver, key, feedback, receiver_map,
-      scratch1, scratch2);
+  masm->isolate()->store_stub_cache()->GenerateProbe(
+      masm, receiver, key, feedback, receiver_map, scratch1, scratch2);
 
   __ bind(&miss);
   StoreIC::GenerateMiss(masm);
 
   __ bind(&load_smi_map);
   __ LoadRoot(receiver_map, Heap::kHeapNumberMapRootIndex);
   __ b(&compare_map);
 }
 
 void VectorKeyedStoreICStub::Generate(MacroAssembler* masm) {
@@ skipping 1655 matching lines @@
   CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_S390