Reshuffle registers in JSConstructStub to avoid trashing costructor and new.target on fast path (so…

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.
 
 #if V8_TARGET_ARCH_MIPS
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 1670 matching lines @@
 
   // 2. Backing store.
   __ sll(t6, t1, 1);
   __ Addu(t5, t5, Operand(t6));
   __ Addu(t5, t5, Operand(FixedArray::kHeaderSize));
 
   // 3. Arguments object.
   __ Addu(t5, t5, Operand(Heap::kSloppyArgumentsObjectSize));
 
   // Do the allocation of all three objects in one go.
-  __ Allocate(t5, v0, t0, t5, &runtime, TAG_OBJECT);
+  __ Allocate(t5, v0, t5, 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::FAST_ALIASED_ARGUMENTS_MAP_INDEX);
 
   __ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
@@ skipping 3869 matching lines @@
                            MemOperand(fp, 6 * kPointerSize), NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS