Add non-miss slow path to LoadIC_Normal.

src/x64/ic-x64.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/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/codegen.h"
 #include "src/ic-inl.h"
@@ skipping 954 matching lines @@
   GenerateMiss(masm);
 }
 
 
 void LoadIC::GenerateNormal(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rax    : receiver
   //  -- rcx    : name
   //  -- rsp[0] : return address
   // -----------------------------------
-  Label miss;
+  Label miss, slow;
 
   GenerateNameDictionaryReceiverCheck(masm, rax, rdx, rbx, &miss);
 
   //  rdx: elements
   // Search the dictionary placing the result in rax.
-  GenerateDictionaryLoad(masm, &miss, rdx, rcx, rbx, rdi, rax);
+  GenerateDictionaryLoad(masm, &slow, rdx, rcx, rbx, rdi, rax);
   __ ret(0);
 
+  // Dictionary load failed, go slow (but don't miss).
+  __ bind(&slow);
+  GenerateRuntimeGetProperty(masm);
+
   // Cache miss: Jump to runtime.
   __ bind(&miss);
   GenerateMiss(masm);
 }
 
 
 void LoadIC::GenerateMiss(MacroAssembler* masm) {
   // ----------- S t a t e -------------
   //  -- rax    : receiver
   //  -- rcx    : name
@@ skipping 304 matching lines @@
   Condition cc = (check == ENABLE_INLINED_SMI_CHECK)
       ? (*jmp_address == Assembler::kJncShortOpcode ? not_zero : zero)
       : (*jmp_address == Assembler::kJnzShortOpcode ? not_carry : carry);
   *jmp_address = static_cast<byte>(Assembler::kJccShortPrefix | cc);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64