Vector ICs: Allow for more IC kinds.

src/ic/ic.cc

 // Copyright 2012 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.
 
 #include "src/ic/ic.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/base/bits.h"
@@ skipping 29 matching lines @@
     case MEGAMORPHIC:
       return 'N';
     case GENERIC:
       return 'G';
 
     // We never see the debugger states here, because the state is
     // computed from the original code - not the patched code. Let
     // these cases fall through to the unreachable code below.
     case DEBUG_STUB:
       break;
-    // Type-vector-based ICs resolve state to one of the above.
-    case DEFAULT:
-      break;
   }
   UNREACHABLE();
   return 0;
 }
 
 
 const char* GetTransitionMarkModifier(KeyedAccessStoreMode mode) {
   if (mode == STORE_NO_TRANSITION_HANDLE_COW) return ".COW";
   if (mode == STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS) {
     return ".IGNORE_OOB";
@@ skipping 318 matching lines @@
     case MEGAMORPHIC:
     case GENERIC:
       if (new_state == MEGAMORPHIC || new_state == GENERIC) break;
       *generic_delta = -1;
       if (new_state == MONOMORPHIC || new_state == POLYMORPHIC) {
         *polymorphic_delta = 1;
       }
       break;
     case PROTOTYPE_FAILURE:
     case DEBUG_STUB:
-    case DEFAULT:
       UNREACHABLE();
   }
 }
 
 
 void IC::OnTypeFeedbackChanged(Isolate* isolate, Address address,
                                State old_state, State new_state,
                                bool target_remains_ic_stub) {
   Code* host =
       isolate->inner_pointer_to_code_cache()->GetCacheEntry(address)->code;
@@ skipping 509 matching lines @@
       UpdateMegamorphicCache(*receiver_map(), *name, *code);
       // Indicate that we've handled this case.
       if (UseVector()) {
         vector_set_ = true;
       } else {
         target_set_ = true;
       }
       break;
     case DEBUG_STUB:
       break;
-    case DEFAULT:
     case GENERIC:
       UNREACHABLE();
       break;
   }
 }
 
 
 Handle<Code> LoadIC::initialize_stub(Isolate* isolate,
                                      ExtraICState extra_state) {
   return LoadICTrampolineStub(isolate, LoadICState(extra_state)).GetCode();
@@ skipping 2217 matching lines @@
     KeyedLoadICNexus nexus(vector, vector_slot);
     KeyedLoadIC ic(IC::EXTRA_CALL_FRAME, isolate, &nexus);
     ic.UpdateState(receiver, key);
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result, ic.Load(receiver, key));
   }
 
   return *result;
 }
 }  // namespace internal
 }  // namespace v8