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

src/ic/ppc/ic-ppc.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_PPC
 
 #include "src/codegen.h"
 #include "src/ic/ic.h"
 #include "src/ic/ic-compiler.h"
 #include "src/ic/stub-cache.h"
@@ skipping 407 matching lines @@
   Register vector = LoadWithVectorDescriptor::VectorRegister();
   Register slot = LoadWithVectorDescriptor::SlotRegister();
   DCHECK(!AreAliased(vector, slot, r7, r8, r9, r10));
   Handle<TypeFeedbackVector> dummy_vector =
       TypeFeedbackVector::DummyVector(masm->isolate());
   int slot_index = dummy_vector->GetIndex(
       FeedbackVectorSlot(TypeFeedbackVector::kDummyKeyedLoadICSlot));
   __ LoadRoot(vector, Heap::kDummyVectorRootIndex);
   __ LoadSmiLiteral(slot, Smi::FromInt(slot_index));
 
-  Code::Flags flags =
-      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::LOAD_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(masm, Code::KEYED_LOAD_IC, flags,
-                                               receiver, key, r7, r8, r9, r10);
+  masm->isolate()->load_stub_cache()->GenerateProbe(masm, receiver, key, r7, r8,
+                                                    r9, r10);
   // Cache miss.
   GenerateMiss(masm);
 
   // Do a quick inline probe of the receiver's dictionary, if it
   // exists.
   __ bind(&probe_dictionary);
   // r6: elements
   __ LoadP(r3, FieldMemOperand(receiver, HeapObject::kMapOffset));
   __ lbz(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset));
   GenerateGlobalInstanceTypeCheck(masm, r3, &slow);
@@ skipping 236 matching lines @@
   Register vector = VectorStoreICDescriptor::VectorRegister();
   Register slot = VectorStoreICDescriptor::SlotRegister();
   DCHECK(!AreAliased(vector, slot, r8, r9, r10, r11));
   Handle<TypeFeedbackVector> dummy_vector =
       TypeFeedbackVector::DummyVector(masm->isolate());
   int slot_index = dummy_vector->GetIndex(
       FeedbackVectorSlot(TypeFeedbackVector::kDummyKeyedStoreICSlot));
   __ LoadRoot(vector, Heap::kDummyVectorRootIndex);
   __ LoadSmiLiteral(slot, Smi::FromInt(slot_index));
 
-  Code::Flags flags =
-      Code::RemoveHolderFromFlags(Code::ComputeHandlerFlags(Code::STORE_IC));
-  masm->isolate()->stub_cache()->GenerateProbe(
-      masm, Code::KEYED_STORE_IC, flags, receiver, key, r8, r9, r10, r11);
+  masm->isolate()->store_stub_cache()->GenerateProbe(masm, receiver, key, r8,
+                                                     r9, r10, r11);
   // Cache miss.
   __ b(&miss);
 
   // Extra capacity case: Check if there is extra capacity to
   // perform the store and update the length. Used for adding one
   // element to the array by writing to array[array.length].
   __ bind(&extra);
   // Condition code from comparing key and array length is still available.
   __ bne(&slow);  // Only support writing to writing to array[array.length].
   // Check for room in the elements backing store.
@@ skipping 165 matching lines @@
     patcher.EmitCondition(ne);
   } else {
     DCHECK(Assembler::GetCondition(branch_instr) == ne);
     patcher.EmitCondition(eq);
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC