MIPS: Change CmpWeakValue to a more MIPS like GetWeakValue.

src/ic/mips64/handler-compiler-mips64.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.
 
 #include "src/v8.h"
 
 #if V8_TARGET_ARCH_MIPS64
 
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
@@ skipping 402 matching lines @@
                                        scratch2);
 
       __ ld(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset));
       reg = holder_reg;  // From now on the object will be in holder_reg.
       __ ld(reg, FieldMemOperand(scratch1, Map::kPrototypeOffset));
     } else {
       Register map_reg = scratch1;
       __ ld(map_reg, FieldMemOperand(reg, HeapObject::kMapOffset));
       if (depth != 1 || check == CHECK_ALL_MAPS) {
         Handle<WeakCell> cell = Map::WeakCellForMap(current_map);
-        __ CmpWeakValue(scratch2, map_reg, cell);
-        __ Branch(miss, ne, scratch2, Operand(zero_reg));
+        __ GetWeakValue(scratch2, cell);
+        __ Branch(miss, ne, scratch2, Operand(map_reg));
       }
 
       // Check access rights to the global object.  This has to happen after
       // the map check so that we know that the object is actually a global
       // object.
       // This allows us to install generated handlers for accesses to the
       // global proxy (as opposed to using slow ICs). See corresponding code
       // in LookupForRead().
       if (current_map->IsJSGlobalProxyMap()) {
         __ CheckAccessGlobalProxy(reg, scratch2, miss);
@@ skipping 12 matching lines @@
     current_map = handle(current->map());
   }
 
   // Log the check depth.
   LOG(isolate(), IntEvent("check-maps-depth", depth + 1));
 
   if (depth != 0 || check == CHECK_ALL_MAPS) {
     // Check the holder map.
     __ ld(scratch1, FieldMemOperand(reg, HeapObject::kMapOffset));
     Handle<WeakCell> cell = Map::WeakCellForMap(current_map);
-    __ CmpWeakValue(scratch2, scratch1, cell);
-    __ Branch(miss, ne, scratch2, Operand(zero_reg));
+    __ GetWeakValue(scratch2, cell);
+    __ Branch(miss, ne, scratch2, Operand(scratch1));
   }
 
   // Perform security check for access to the global object.
   DCHECK(current_map->IsJSGlobalProxyMap() ||
          !current_map->is_access_check_needed());
   if (current_map->IsJSGlobalProxyMap()) {
     __ CheckAccessGlobalProxy(reg, scratch1, miss);
   }
 
   // Return the register containing the holder.
@@ skipping 216 matching lines @@
   // Return the generated code.
   return GetCode(kind(), Code::NORMAL, name);
 }
 
 
 #undef __
 }
 }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS64