Replace ICStub for array.length with hydrogen stub

src/mips/code-stubs-mips.cc

 // Copyright 2012 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 4526 matching lines @@
     }
     __ mov(a0, v0);
     __ LoadRoot(v0, Heap::kTrueValueRootIndex);
     __ DropAndRet(HasArgsInRegisters() ? 0 : 2, eq, a0, Operand(zero_reg));
     __ LoadRoot(v0, Heap::kFalseValueRootIndex);
     __ DropAndRet(HasArgsInRegisters() ? 0 : 2);
   }
 }
 
 
-void ArrayLengthStub::Generate(MacroAssembler* masm) {
-  Label miss;
-  Register receiver;
-  if (kind() == Code::KEYED_LOAD_IC) {
-    // ----------- S t a t e -------------
-    //  -- ra    : return address
-    //  -- a0    : key
-    //  -- a1    : receiver
-    // -----------------------------------
-    __ Branch(&miss, ne, a0,
-        Operand(masm->isolate()->factory()->length_string()));
-    receiver = a1;
-  } else {
-    ASSERT(kind() == Code::LOAD_IC);
-    // ----------- S t a t e -------------
-    //  -- a2    : name
-    //  -- ra    : return address
-    //  -- a0    : receiver
-    //  -- sp[0] : receiver
-    // -----------------------------------
-    receiver = a0;
-  }
-
-  StubCompiler::GenerateLoadArrayLength(masm, receiver, a3, &miss);
-  __ bind(&miss);
-  StubCompiler::TailCallBuiltin(masm, StubCompiler::MissBuiltin(kind()));
-}
-
-
 void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
   Label miss;
   Register receiver;
   if (kind() == Code::KEYED_LOAD_IC) {
     // ----------- S t a t e -------------
     //  -- ra    : return address
     //  -- a0    : key
     //  -- a1    : receiver
     // -----------------------------------
     __ Branch(&miss, ne, a0,
@@ skipping 3606 matching lines @@
   __ Pop(ra, t1, a1);
   __ Ret();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_MIPS