SMI checks for receiver in KeyedLoad/Store (done right this time)

src/x64/stub-cache-x64.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2483 matching lines @@
 
 
 MaybeObject* KeyedStoreStubCompiler::CompileStoreFastElement(
     Map* receiver_map) {
   // ----------- S t a t e -------------
   //  -- rax    : value
   //  -- rcx    : key
   //  -- rdx    : receiver
   //  -- rsp[0] : return address
   // -----------------------------------
-  Label miss;
-  __ JumpIfSmi(rdx, &miss);
-
   bool is_js_array = receiver_map->instance_type() == JS_ARRAY_TYPE;
   MaybeObject* maybe_stub =
       KeyedStoreFastElementStub(is_js_array).TryGetCode();
   Code* stub;
   if (!maybe_stub->To(&stub)) return maybe_stub;
   __ DispatchMap(rdx,
                  Handle<Map>(receiver_map),
                  Handle<Code>(stub),
                  DO_SMI_CHECK);
 
-  __ bind(&miss);
   Handle<Code> ic = isolate()->builtins()->KeyedStoreIC_Miss();
   __ jmp(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(NORMAL, NULL);
 }
 
 
 MaybeObject* KeyedStoreStubCompiler::CompileStoreMegamorphic(
     MapList* receiver_maps,
@@ skipping 428 matching lines @@
   return GetCode(CALLBACKS, name);
 }
 
 
 MaybeObject* KeyedLoadStubCompiler::CompileLoadFastElement(Map* receiver_map) {
   // ----------- S t a t e -------------
   //  -- rax    : key
   //  -- rdx    : receiver
   //  -- rsp[0] : return address
   // -----------------------------------
-  Label miss;
-  __ JumpIfSmi(rdx, &miss);
-
   MaybeObject* maybe_stub = KeyedLoadFastElementStub().TryGetCode();
   Code* stub;
   if (!maybe_stub->To(&stub)) return maybe_stub;
   __ DispatchMap(rdx,
                  Handle<Map>(receiver_map),
                  Handle<Code>(stub),
                  DO_SMI_CHECK);
 
-  __ bind(&miss);
   Handle<Code> ic = isolate()->builtins()->KeyedLoadIC_Miss();
   __ jmp(ic, RelocInfo::CODE_TARGET);
 
   // Return the generated code.
   return GetCode(NORMAL, NULL);
 }
 
 
 MaybeObject* KeyedLoadStubCompiler::CompileLoadMegamorphic(
     MapList* receiver_maps,
@@ skipping 608 matching lines @@
       masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric();
   __ jmp(ic_force_generic, RelocInfo::CODE_TARGET);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64