Distinguish slow from fast sloppy arguments

src/mips/code-stubs-mips.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_MIPS
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 1761 matching lines @@
 
   // Do the allocation of all three objects in one go.
   __ Allocate(t5, v0, a3, t0, &runtime, TAG_OBJECT);
 
   // v0 = address of new object(s) (tagged)
   // a2 = argument count (smi-tagged)
   // Get the arguments boilerplate from the current native context into t0.
   const int kNormalOffset =
       Context::SlotOffset(Context::SLOPPY_ARGUMENTS_MAP_INDEX);
   const int kAliasedOffset =
-      Context::SlotOffset(Context::ALIASED_ARGUMENTS_MAP_INDEX);
+      Context::SlotOffset(Context::FAST_ALIASED_ARGUMENTS_MAP_INDEX);
 
   __ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
   __ lw(t0, FieldMemOperand(t0, GlobalObject::kNativeContextOffset));
   Label skip2_ne, skip2_eq;
   __ Branch(&skip2_ne, ne, a1, Operand(zero_reg));
   __ lw(t0, MemOperand(t0, kNormalOffset));
   __ bind(&skip2_ne);
 
   __ Branch(&skip2_eq, eq, a1, Operand(zero_reg));
   __ lw(t0, MemOperand(t0, kAliasedOffset));
@@ skipping 3781 matching lines @@
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS