Support for MIPS in architecture independent files....

src/mips/builtins-mips.cc

+// Copyright 2006-2008 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
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+
+#include "v8.h"
+
+#include "codegen-inl.h"
+#include "debug.h"
+#include "runtime.h"
+
+namespace v8 {
+namespace internal {
+
+
+#define __ ACCESS_MASM(masm)
+
+
+void Builtins::Generate_Adaptor(MacroAssembler* masm, CFunctionId id) {
+  UNIMPLEMENTED_();
+//  // TODO(428): Don't pass the function in a static variable.
+////  __ mov(ip, Operand(ExternalReference::builtin_passed_function()));
+////  __ str(r1, MemOperand(ip, 0));
+//  __ li(ip, Operand(ExternalReference::builtin_passed_function()));
+//  __ sw(a1, MemOperand(ip, 0));
+//
+//  // The actual argument count has already been loaded into register
+//  // r0, but JumpToBuiltin expects r0 to contain the number of
+//  // arguments including the receiver.
+////  __ add(r0, r0, Operand(1));
+////  __ JumpToRuntime(ExternalReference(id));
+//  __ addi(a0, a0, Operand(1));
+//  // This is really ugly...
+//  // in Builtins::Generate_JSConstructStubGeneric we allocate some args slots
+//  // because some functions need it. But here we do not expect them.
+////  __ break_(0x00001);
+////  __ addiu(sp, sp, StandardFrameConstants::kRArgsSlotsSize);
+//  __ JumpToRuntime(ExternalReference(id));
+//  __ nop(); // NOP_ADDED
+}
+
+
+void Builtins::Generate_ArrayCode(MacroAssembler* masm) {
+  UNIMPLEMENTED_();
+//  // Just jump to the generic array code.
+////  __ break_(0x00002);
+//  Code* code = Builtins::builtin(Builtins::ArrayCodeGeneric);
+//  Handle<Code> array_code(code);
+//  __ Jump(array_code, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+}
+
+
+void Builtins::Generate_ArrayConstructCode(MacroAssembler* masm) {
+  UNIMPLEMENTED_();
+//  // Just jump to the generic construct code.
+//  Code* code = Builtins::builtin(Builtins::JSConstructStubGeneric);
+//  Handle<Code> generic_construct_stub(code);
+//  __ Jump(generic_construct_stub, RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+}
+
+
+void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- a0     : number of arguments
+//  //  -- a1     : constructor function
+//  //  -- ra     : return address
+//  //  -- sp[...]: constructor arguments
+//  // -----------------------------------
+//
+//  __ li(at, Operand(0xe));
+//  __ teq(a1, at, 0x123);
+//  Label non_function_call;
+//  // Check that the function is not a smi.
+//  __ andi(t0, a1, Operand(kSmiTagMask));
+//  __ beq(t0, zero_reg, &non_function_call);
+//  __ nop(); // NOP_ADDED
+//  // Check that the function is a JSFunction.
+//  __ GetObjectType(a1, a2, a2);
+//  __ bcond(ne, &non_function_call, a2, Operand(JS_FUNCTION_TYPE));
+//  __ nop(); // NOP_ADDED
+//
+//  // Jump to the function-specific construct stub.
+////  __ ldr(r2, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
+////  __ ldr(r2, FieldMemOperand(r2, SharedFunctionInfo::kConstructStubOffset));
+////  __ add(pc, r2, Operand(Code::kHeaderSize - kHeapObjectTag));
+//  __ lw(a2, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
+//  __ lw(a2, FieldMemOperand(a2, SharedFunctionInfo::kConstructStubOffset));
+//  __ addiu(t9, a2, Operand(Code::kHeaderSize - kHeapObjectTag));
+//  __ jr(Operand(t9));
+//  __ nop(); // NOP_ADDED
+//
+//  // r0: number of arguments
+//  // r1: called object
+//  __ bind(&non_function_call);
+////  __ break_(0x04301);
+//
+//  // Set expected number of arguments to zero (not changing r0).
+////  __ mov(r2, Operand(0));
+////  __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR);
+////  __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),
+////          RelocInfo::CODE_TARGET);
+//  __ li(a2, Operand(0));
+//  __ GetBuiltinEntry(a3, Builtins::CALL_NON_FUNCTION_AS_CONSTRUCTOR);
+////  __ break_(0x124);
+//  __ li(v1, Operand(0)); // Tell ArgumentsAdaptorTrampoline we need args slots
+//  __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),
+//          RelocInfo::CODE_TARGET);
+//  __ nop(); // NOP_ADDED
+}
+
+
+void Builtins::Generate_JSConstructStubGeneric(MacroAssembler* masm) {
+  UNIMPLEMENTED_();
+//
+//
+//  // Enter a construct frame.
+//  __ EnterConstructFrame();
+//
+//  // Preserve the two incoming parameters on the stack.
+//  // a0: Smi-tagged arguments count. a1: Constructor function.
+//  __ sll(a0, a0, kSmiTagSize);
+//  __ multi_push(a0.bit() | a1.bit());
+//
+//  // Use t7 to hold undefined, which is used in several places below.
+//  __ LoadRoot(t7, Heap::kUndefinedValueRootIndex);
+//
+//  Label rt_call, allocated;
+//  // Try to allocate the object without transitioning into C code. If any of the
+//  // preconditions is not met, the code bails out to the runtime call.
+//  if (FLAG_inline_new) {
+//    Label undo_allocation;
+//#ifdef ENABLE_DEBUGGER_SUPPORT
+//    ExternalReference debug_step_in_fp =
+//        ExternalReference::debug_step_in_fp_address();
+//    __ li(a2, Operand(debug_step_in_fp));
+//    __ lw(a2, MemOperand(a2));
+//    __ bne(a2, zero_reg, &rt_call);
+//    __ nop(); // NOP_ADDED
+//#endif
+//
+//    // Load the initial map and verify that it is in fact a map.
+//    // r1->a1: constructor function
+//    // r7->t7: undefined
+////    __ ldr(r2, FieldMemOperand(r1, JSFunction::kPrototypeOrInitialMapOffset));
+////    __ tst(r2, Operand(kSmiTagMask));
+////    __ b(eq, &rt_call);
+////    __ CompareObjectType(r2, r3, r4, MAP_TYPE);
+////    __ b(ne, &rt_call);
+//    __ lw(a2, FieldMemOperand(a1, JSFunction::kPrototypeOrInitialMapOffset));
+//    __ andi(t0, a2, Operand(kSmiTagMask));
+//    __ beq(t0, zero_reg, &rt_call);
+//    __ nop();   // NOP_ADDED
+//    __ GetObjectType(a2, a3, t4);
+//    __ bcond(ne, &rt_call, t4, Operand(MAP_TYPE));
+//    __ nop();   // NOP_ADDED
+//
+//    // Check that the constructor is not constructing a JSFunction (see comments
+//    // in Runtime_NewObject in runtime.cc). In which case the initial map's
+//    // instance type would be JS_FUNCTION_TYPE.
+//    // r1->a1: constructor function
+//    // r2->a2: initial map
+//    // r7->t7: undefined
+////    __ CompareInstanceType(r2, r3, JS_FUNCTION_TYPE);
+//    __ lbu(a3, FieldMemOperand(a2, Map::kInstanceTypeOffset));
+//    __ bcond(eq, &rt_call, a3, Operand(JS_FUNCTION_TYPE));
+//    __ nop();   // NOP_ADDED
+//
+//    // Now allocate the JSObject on the heap.
+//    // r1->a1: constructor function
+//    // r2->a2: initial map
+//    // r7->t7: undefined
+////    __ ldrb(r3, FieldMemOperand(r2, Map::kInstanceSizeOffset));
+//    __ lbu(a3, FieldMemOperand(a2, Map::kInstanceSizeOffset));
+//    __ AllocateInNewSpace(a3, t4, t5, t6, &rt_call, NO_ALLOCATION_FLAGS);
+//
+//    // Allocated the JSObject, now initialize the fields. Map is set to initial
+//    // map and properties and elements are set to empty fixed array.
+//    // r1->a1: constructor function
+//    // r2->a2: initial map
+//    // r3->a3: object size
+//    // r4->t4: JSObject (not tagged)
+//    // r7->t7: undefined
+////    __ LoadRoot(r6, Heap::kEmptyFixedArrayRootIndex);
+////    __ mov(r5, r4);
+//    __ LoadRoot(t6, Heap::kEmptyFixedArrayRootIndex);
+//    __ mov(t5, t4);
+////    __ str(r2, MemOperand(r5, kPointerSize, PostIndex));
+////    __ str(r6, MemOperand(r5, kPointerSize, PostIndex));
+////    __ str(r6, MemOperand(r5, kPointerSize, PostIndex));
+//    __ sw(a2, MemOperand(t5, JSObject::kMapOffset));
+//    __ sw(t6, MemOperand(t5, JSObject::kPropertiesOffset));
+//    __ sw(t6, MemOperand(t5, JSObject::kElementsOffset));
+//    __ addiu(t5, t5, Operand(3*kPointerSize));
+//
+//    ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset);
+//    ASSERT_EQ(1 * kPointerSize, JSObject::kPropertiesOffset);
+//    ASSERT_EQ(2 * kPointerSize, JSObject::kElementsOffset);
+//
+//
+//    // Fill all the in-object properties with undefined.
+//    // r1->a1: constructor function
+//    // r2->a2: initial map
+//    // r3->a3: object size (in words)
+//    // r4->t4: JSObject (not tagged)
+//    // r5->t5: First in-object property of JSObject (not tagged)
+//    // r7->t7: undefined
+////    __ add(r6, r4, Operand(r3, LSL, kPointerSizeLog2));  // End of object.
+//    __ sll(t0, a3, kPointerSizeLog2);
+//    __ add(t6, t4, t0);                 // End of object.
+//    ASSERT_EQ(3 * kPointerSize, JSObject::kHeaderSize);
+//    { Label loop, entry;
+//      __ b(&entry);
+//      __ nop(); // NOP_ADDED
+//      __ bind(&loop);
+////      __ str(r7, MemOperand(r5, kPointerSize, PostIndex));
+//      __ sw(t7, MemOperand(t5, 0));
+//      __ addiu(t5, Operand(kPointerSize));
+//      __ bind(&entry);
+////      __ cmp(r5, Operand(r6));
+////      __ b(lt, &loop);
+//      __ bcond(less, &loop, t5, Operand(t6));
+//      __ nop(); // NOP_ADDED
+//    }
+//
+//    // Add the object tag to make the JSObject real, so that we can continue and
+//    // jump into the continuation code at any time from now on. Any failures
+//    // need to undo the allocation, so that the heap is in a consistent state
+//    // and verifiable.
+////    __ add(r4, r4, Operand(kHeapObjectTag));
+//    __ addiu(t4, t4, Operand(kHeapObjectTag));
+//
+//    // Check if a non-empty properties array is needed. Continue with allocated
+//    // object if not fall through to runtime call if it is.
+//    // r1->a1: constructor function
+//    // r4->t0: JSObject
+//    // r5->t1: start of next object (not tagged)
+//    // r7->t7: undefined
+////    __ ldrb(r3, FieldMemOperand(r2, Map::kUnusedPropertyFieldsOffset));
+//    __ lbu(a3, FieldMemOperand(a2, Map::kUnusedPropertyFieldsOffset));
+//    // The field instance sizes contains both pre-allocated property fields and
+//    // in-object properties.
+////    __ ldr(r0, FieldMemOperand(r2, Map::kInstanceSizesOffset));
+////    __ and_(r6,
+////            r0,
+////            Operand(0x000000FF << Map::kPreAllocatedPropertyFieldsByte * 8));
+////    __ add(r3, r3, Operand(r6, LSR, Map::kPreAllocatedPropertyFieldsByte * 8));
+////    __ and_(r6, r0, Operand(0x000000FF << Map::kInObjectPropertiesByte * 8));
+////    __ sub(r3, r3, Operand(r6, LSR, Map::kInObjectPropertiesByte * 8), SetCC);
+//    __ lw(a0, FieldMemOperand(a2, Map::kInstanceSizesOffset));
+//    __ andi(t6,
+//            a0,
+//            Operand(0x000000FF << Map::kPreAllocatedPropertyFieldsByte * 8));
+//    __ srl(t0, t6, Map::kPreAllocatedPropertyFieldsByte * 8);
+//    __ addu(a3, a3, Operand(t0));
+//    __ and_(t6, a0, Operand(0x000000FF << Map::kInObjectPropertiesByte * 8));
+//    __ srl(t0, t6, Map::kInObjectPropertiesByte * 8);
+//    __ sub(a3, a3, Operand(t0));
+//
+//    // Done if no extra properties are to be allocated.
+////    __ b(eq, &allocated);
+//    __ beq(a3, zero_reg, &allocated);
+//    __ nop(); // NOP_ADDED
+//    __ Assert(greater_equal, "Property allocation count failed.", a3, Operand(zero_reg));
+//
+//    // Scale the number of elements by pointer size and add the header for
+//    // FixedArrays to the start of the next object calculation from above.
+//    // r1->a1: constructor
+//    // r3->a3: number of elements in properties array
+//    // r4->t4: JSObject
+//    // r5->t5: start of next object
+//    // r7->t7: undefined
+////    __ add(r0, r3, Operand(FixedArray::kHeaderSize / kPointerSize));
+//    __ addiu(a0, a3, Operand(FixedArray::kHeaderSize / kPointerSize));
+//    __ AllocateInNewSpace(a0,
+//                          t5,
+//                          t6,
+//                          a2,
+//                          &undo_allocation,
+//                          RESULT_CONTAINS_TOP);
+//
+//    // Initialize the FixedArray.
+//    // r1->a1: constructor
+//    // r3->a3: number of elements in properties array
+//    // r4->t4: JSObject
+//    // r5->t5: start of next object
+//    // r7->t7: undefined
+//    __ LoadRoot(t6, Heap::kFixedArrayMapRootIndex);
+////    __ mov(r2, r5);
+//    __ mov(a2, t5);
+//    ASSERT_EQ(0 * kPointerSize, JSObject::kMapOffset);
+////    __ str(r6, MemOperand(r2, kPointerSize, PostIndex));
+//    __ sw(t6, MemOperand(a2, JSObject::kMapOffset));
+//    ASSERT_EQ(1 * kPointerSize, Array::kLengthOffset);
+////    __ str(r3, MemOperand(r2, kPointerSize, PostIndex));
+//    __ sw(a3, MemOperand(a2, Array::kLengthOffset));
+//
+//    __ addiu(a2, a2, Operand(2*kPointerSize));
+//
+//    // Initialize the fields to undefined.
+//    // r1->a1: constructor
+//    // r2->a2: First element of FixedArray (not tagged)
+//    // r3->a3: number of elements in properties array
+//    // r4->t4: JSObject
+//    // r5->t5: FixedArray (not tagged)
+//    // r7->t7: undefined
+////    __ add(r6, r2, Operand(r3, LSL, kPointerSizeLog2));  // End of object.
+//    __ sll(t3, a3, kPointerSizeLog2);
+//    __ add(t6, a2, Operand(t3));  // End of object.
+//    ASSERT_EQ(2 * kPointerSize, FixedArray::kHeaderSize);
+//    { Label loop, entry;
+//      __ b(&entry);
+//      __ nop(); // NOP_ADDED
+//      __ bind(&loop);
+////      __ str(r7, MemOperand(r2, kPointerSize, PostIndex));
+////      __ bind(&entry);
+////      __ cmp(r2, Operand(r6));
+////      __ b(lt, &loop);
+//      __ sw(t7, MemOperand(a2));
+//      __ addiu(a2, a2, kPointerSize);
+//      __ bind(&entry);
+//      __ bcond(less, &loop, a2, Operand(t6));
+//      __ nop(); // NOP_ADDED
+//    }
+//
+//    // Store the initialized FixedArray into the properties field of
+//    // the JSObject
+//    // r1->a1: constructor function
+//    // r4->t4: JSObject
+//    // r5->t5: FixedArray (not tagged)
+////    __ add(r5, r5, Operand(kHeapObjectTag));  // Add the heap tag.
+////    __ str(r5, FieldMemOperand(r4, JSObject::kPropertiesOffset));
+//    __ addiu(t5, t5, Operand(kHeapObjectTag));  // Add the heap tag.
+//    __ sw(t5, FieldMemOperand(t4, JSObject::kPropertiesOffset));
+//
+//    // Continue with JSObject being successfully allocated
+//    // r1: constructor function
+//    // r4: JSObject
+////    __ jmp(&allocated);
+//    __ b(&allocated);
+//    __ nop();   // NOP_ADDED
+//
+//    // Undo the setting of the new top so that the heap is verifiable. For
+//    // example, the map's unused properties potentially do not match the
+//    // allocated objects unused properties.
+//    // r4: JSObject (previous new top)
+//    __ bind(&undo_allocation);
+//    __ UndoAllocationInNewSpace(t4, t5);
+//  }
+//
+//  __ bind(&rt_call);
+//  // Allocate the new receiver object using the runtime call.
+//  // r1->a1: constructor function
+//  __ push(a1);  // argument for Runtime_NewObject
+//  __ CallRuntime(Runtime::kNewObject, 1);
+//  __ nop();
+////  __ mov(r4, r0)
+//  __ mov(t4, v0);
+//
+//  // Receiver for constructor call allocated.
+//  // r4->t0: JSObject
+//  __ bind(&allocated);
+////  __ push(r4);
+//  __ push(t4);
+//
+//  // Push the function and the allocated receiver from the stack.
+//  // sp[0]: receiver (newly allocated object)
+//  // sp[1]: constructor function
+//  // sp[2]: number of arguments (smi-tagged)
+////  __ ldr(r1, MemOperand(sp, kPointerSize));
+////  __ push(r1);  // Constructor function.
+////  __ push(r4);  // Receiver.
+//  __ lw(a1, MemOperand(sp, kPointerSize));
+//  __ push(a1);  // Constructor function.
+//  __ push(t4);  // Receiver.
+//
+//  // Reload the number of arguments from the stack.
+//  // r1->a1: constructor function
+//  // sp[0]: receiver
+//  // sp[1]: constructor function
+//  // sp[2]: receiver
+//  // sp[3]: constructor function
+//  // sp[4]: number of arguments (smi-tagged)
+////  __ ldr(r3, MemOperand(sp, 4 * kPointerSize));
+//  __ lw(a3, MemOperand(sp, 4 * kPointerSize));
+//
+//  // Setup pointer to last argument.
+////  __ add(r2, fp, Operand(StandardFrameConstants::kCallerSPOffset));
+//  __ addiu(a2, fp, Operand(StandardFrameConstants::kCallerSPOffset));
+////                          + StandardFrameConstants::kRegularArgsSlotsSize));
+//
+//  // Setup number of arguments for function call below
+////  __ mov(r0, Operand(r3, LSR, kSmiTagSize));
+//  __ srl(a0, a3, kSmiTagSize);
+//
+////  __ break_(0x04205);
+//  // TODO(MIPS.4): Optimize 'Copy args and receiver to the expression stack.'
+//  // Copy arguments and receiver to the expression stack.
+//  // a0: number of arguments
+//  // a1: constructor function
+//  // a2: address of last argument (caller sp)
+//  // a3: number of arguments (smi-tagged)
+//  // sp[0]: receiver
+//  // sp[1]: constructor function
+//  // sp[2]: receiver
+//  // sp[3]: constructor function
+//  // sp[4]: number of arguments (smi-tagged)
+//  Label loop, entry;
+//  __ b(&entry);
+//  __ bind(&loop);   // LOOP
+//  __ sll(t0, a3, kPointerSizeLog2 - kSmiTagSize);
+//  __ add(t0, t0, Operand(a2));
+//  __ lw(ip, MemOperand(t0));
+//  __ push(ip);
+//  __ bind(&entry);  // ENTRY
+//  __ addiu(a3, a3, Operand(-2));
+//  __ bcond(greater_equal, &loop, a3, Operand(zero_reg));
+//  __ nop();
+//
+//  // Call the function.
+//  // a0: number of arguments
+//  // a1: constructor function
+//  ParameterCount actual(a0);
+//  __ InvokeFunction(a1, actual, CALL_FUNCTION, false);
+//  __ nop(); // NOP_ADDED
+//
+//  // Pop the function from the stack.
+//  // sp[0]: constructor function
+//  // sp[2]: receiver
+//  // sp[3]: constructor function
+//  // sp[4]: number of arguments (smi-tagged)
+//  __ pop();
+//
+//  // Restore context from the frame.
+//  // v0: result
+//  // sp[0]: receiver
+//  // sp[1]: constructor function
+//  // sp[2]: number of arguments (smi-tagged)
+////  __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+//  __ lw(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
+//
+//  // If the result is an object (in the ECMA sense), we should get rid
+//  // of the receiver and use the result; see ECMA-262 section 13.2.2-7
+//  // on page 74.
+//  Label use_receiver, exit;
+//
+//  // If the result is a smi, it is *not* an object in the ECMA sense.
+//  // v0: result
+//  // sp[0]: receiver (newly allocated object)
+//  // sp[1]: constructor function
+//  // sp[2]: number of arguments (smi-tagged)
+////  __ tst(r0, Operand(kSmiTagMask));
+////  __ b(eq, &use_receiver);
+//  __ andi(t0, v0, Operand(kSmiTagMask));
+//  __ beq(t0, zero_reg, &use_receiver);
+//  __ nop(); // NOP_ADDED
+//
+//
+//  // If the type of the result (stored in its map) is less than
+//  // FIRST_JS_OBJECT_TYPE, it is not an object in the ECMA sense.
+////  __ CompareObjectType(r0, r3, r3, FIRST_JS_OBJECT_TYPE);
+////  __ b(ge, &exit);
+//  __ GetObjectType(v0, a3, a3);
+//  __ bcond(greater_equal, &exit, a3, Operand(FIRST_JS_OBJECT_TYPE));
+//  __ nop(); // NOP_ADDED
+//
+//  // Throw away the result of the constructor invocation and use the
+//  // on-stack receiver as the result.
+//  __ bind(&use_receiver);
+////  __ ldr(r0, MemOperand(sp));
+//  __ lw(v0, MemOperand(sp));
+//
+//  // Remove receiver from the stack, remove caller arguments, and
+//  // return.
+//  __ bind(&exit);
+//  // v0: result
+//  // sp[0]: receiver (newly allocated object)
+//  // sp[1]: constructor function
+//  // sp[2]: number of arguments (smi-tagged)
+////  __ ldr(r1, MemOperand(sp, 2 * kPointerSize));
+////  __ LeaveConstructFrame();
+////  __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2 - 1));
+////  __ add(sp, sp, Operand(kPointerSize));
+////  __ IncrementCounter(&Counters::constructed_objects, 1, r1, r2);
+////  __ Jump(lr);
+//  __ lw(a1, MemOperand(sp, 2 * kPointerSize));
+//  __ LeaveConstructFrame();
+//  __ sll(t0, a1, kPointerSizeLog2 - 1);
+//  __ add(sp, sp, t0);
+//  __ add(sp, sp, Operand(kPointerSize));
+//  __ IncrementCounter(&Counters::constructed_objects, 1, a1, a2);
+//  __ Jump(ra);
+//  __ nop(); // NOP_ADDED
+}
+
+
+static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm,
+                                             bool is_construct) {
+  UNIMPLEMENTED_();
+//  // Called from JSEntryStub::GenerateBody
+//  // a0: code entry
+//  // a1: function
+//  // a2: receiver
+//  // a3: argc
+//  // s0: argv
+//
+//
+//  // Clear the context before we push it when entering the JS frame.
+//  __ li(cp, Operand(0));
+//  
+//  // Enter an internal frame.
+//  __ EnterInternalFrame();
+//
+//  // Set up the context from the function argument.
+//  __ lw(cp, FieldMemOperand(a1, JSFunction::kContextOffset));
+//
+//  // Set up the roots register.
+//  ExternalReference roots_address = ExternalReference::roots_address();
+//  __ li(s4, Operand(roots_address));
+//
+//  // Push the function and the receiver onto the stack.
+//  __ multi_push(a1.bit() | a2.bit());
+//
+//
+//  // Copy arguments to the stack in a loop.
+//  // a1: function
+//  // a3: argc
+//  // s0: argv, ie points to first arg
+//  Label loop, entry;
+//  __ sll(t0, a3, kPointerSizeLog2);
+//  __ add(a2, s0, t0);
+//  // a2 points past last arg.
+//  __ b(&entry);
+//  __ nop(); // NOP_ADDED
+//  __ bind(&loop);
+//  __ lw(a0, MemOperand(s0));  // read next parameter
+//  __ addiu(s0, Operand(kPointerSize));
+//  __ lw(a0, MemOperand(a0));  // dereference handle
+//  __ push(a0);  // push parameter.
+//  __ bind(&entry);
+//  __ bcond(ne, &loop, s0, Operand(a2));
+//  __ nop(); // NOP_ADDED
+//
+//  // Initialize all JavaScript callee-saved registers, since they will be seen
+//  // by the garbage collector as part of handlers.
+//  __ LoadRoot(t4, Heap::kUndefinedValueRootIndex);
+//  __ mov(s1, t4);
+//  __ mov(s2, t4);
+//  __ mov(s3, t4);   // s3 is used for sp temp save.
+////  __ mov(s4, s4); // s4 holds the root address. Do not init.
+//  __ mov(s5, t4);   // Used for condition evaluation.
+//  __ mov(s6, t4);   // Used for condition evaluation.
+////  __ mov(s7, s7); // s7 is cp. Do not init.
+//
+//  // Invoke the code and pass argc as a0.
+//  __ mov(a0, a3);
+//  if (is_construct) {
+//    __ break_(0x594);
+//    // We don't need arguments slots since we jump to our code.
+//    __ Call(Handle<Code>(Builtins::builtin(Builtins::JSConstructCall)),
+//            RelocInfo::CODE_TARGET);
+//    __ nop();
+//  } else {
+//    ParameterCount actual(a0);
+//    __ InvokeFunction(a1, actual, CALL_FUNCTION, false);
+//    // Args slots are allocated in InvokeFunction.
+//  }
+//
+//  // Exit the JS frame and remove the parameters (except function), and return.
+//  // Respect ABI stack constraint.
+//  __ LeaveInternalFrame();
+//
+//  __ Jump(ra);
+//  __ nop(); // NOP_ADDED
+//
+//  // v0: result
+//
+}
+
+
+void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) {
+  Generate_JSEntryTrampolineHelper(masm, false);
+}
+
+
+void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) {
+  Generate_JSEntryTrampolineHelper(masm, true);
+}
+
+
+void Builtins::Generate_FunctionCall(MacroAssembler* masm) {
+  UNIMPLEMENTED_();
+  __ break_(0x619);
+//  __ break_(0x12345);
+//  // 1. Make sure we have at least one argument.
+//  // r0: actual number of argument
+//  { Label done;
+//    __ tst(r0, Operand(r0));
+//    __ b(ne, &done);
+//    __ LoadRoot(r2, Heap::kUndefinedValueRootIndex);
+//    __ push(r2);
+//    __ add(r0, r0, Operand(1));
+//    __ bind(&done);
+//  }
+//
+//  // 2. Get the function to call from the stack.
+//  // r0: actual number of argument
+//  { Label done, non_function, function;
+//    __ ldr(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2));
+//    __ tst(r1, Operand(kSmiTagMask));
+//    __ b(eq, &non_function);
+//    __ CompareObjectType(r1, r2, r2, JS_FUNCTION_TYPE);
+//    __ b(eq, &function);
+//
+//    // Non-function called: Clear the function to force exception.
+//    __ bind(&non_function);
+//    __ mov(r1, Operand(0));
+//    __ b(&done);
+//
+//    // Change the context eagerly because it will be used below to get the
+//    // right global object.
+//    __ bind(&function);
+//    __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
+//
+//    __ bind(&done);
+//  }
+//
+//  // 3. Make sure first argument is an object; convert if necessary.
+//  // r0: actual number of arguments
+//  // r1: function
+//  { Label call_to_object, use_global_receiver, patch_receiver, done;
+//    __ add(r2, sp, Operand(r0, LSL, kPointerSizeLog2));
+//    __ ldr(r2, MemOperand(r2, -kPointerSize));
+//
+//    // r0: actual number of arguments
+//    // r1: function
+//    // r2: first argument
+//    __ tst(r2, Operand(kSmiTagMask));
+//    __ b(eq, &call_to_object);
+//
+//    __ LoadRoot(r3, Heap::kNullValueRootIndex);
+//    __ cmp(r2, r3);
+//    __ b(eq, &use_global_receiver);
+//    __ LoadRoot(r3, Heap::kUndefinedValueRootIndex);
+//    __ cmp(r2, r3);
+//    __ b(eq, &use_global_receiver);
+//
+//    __ CompareObjectType(r2, r3, r3, FIRST_JS_OBJECT_TYPE);
+//    __ b(lt, &call_to_object);
+//    __ cmp(r3, Operand(LAST_JS_OBJECT_TYPE));
+//    __ b(le, &done);
+//
+//    __ bind(&call_to_object);
+//    __ EnterInternalFrame();
+//
+//    // Store number of arguments and function across the call into the runtime.
+//    __ mov(r0, Operand(r0, LSL, kSmiTagSize));
+//    __ push(r0);
+//    __ push(r1);
+//
+//    __ push(r2);
+//    __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_JS);
+//    __ mov(r2, r0);
+//
+//    // Restore number of arguments and function.
+//    __ pop(r1);
+//    __ pop(r0);
+//    __ mov(r0, Operand(r0, ASR, kSmiTagSize));
+//
+//    __ LeaveInternalFrame();
+//    __ b(&patch_receiver);
+//
+//    // Use the global receiver object from the called function as the receiver.
+//    __ bind(&use_global_receiver);
+//    const int kGlobalIndex =
+//        Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize;
+//    __ ldr(r2, FieldMemOperand(cp, kGlobalIndex));
+//    __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalReceiverOffset));
+//
+//    __ bind(&patch_receiver);
+//    __ add(r3, sp, Operand(r0, LSL, kPointerSizeLog2));
+//    __ str(r2, MemOperand(r3, -kPointerSize));
+//
+//    __ bind(&done);
+//  }
+//
+//  // 4. Shift stuff one slot down the stack
+//  // r0: actual number of arguments (including call() receiver)
+//  // r1: function
+//  { Label loop;
+//    // Calculate the copy start address (destination). Copy end address is sp.
+//    __ add(r2, sp, Operand(r0, LSL, kPointerSizeLog2));
+//    __ add(r2, r2, Operand(kPointerSize));  // copy receiver too
+//
+//    __ bind(&loop);
+//    __ ldr(ip, MemOperand(r2, -kPointerSize));
+//    __ str(ip, MemOperand(r2));
+//    __ sub(r2, r2, Operand(kPointerSize));
+//    __ cmp(r2, sp);
+//    __ b(ne, &loop);
+//  }
+//
+//  // 5. Adjust the actual number of arguments and remove the top element.
+//  // r0: actual number of arguments (including call() receiver)
+//  // r1: function
+//  __ sub(r0, r0, Operand(1));
+//  __ add(sp, sp, Operand(kPointerSize));
+//
+//  // 6. Get the code for the function or the non-function builtin.
+//  //    If number of expected arguments matches, then call. Otherwise restart
+//  //    the arguments adaptor stub.
+//  // r0: actual number of arguments
+//  // r1: function
+//  { Label invoke;
+//    __ tst(r1, r1);
+//    __ b(ne, &invoke);
+//    __ mov(r2, Operand(0));  // expected arguments is 0 for CALL_NON_FUNCTION
+//    __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION);
+//    __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),
+//                         RelocInfo::CODE_TARGET);
+//
+//    __ bind(&invoke);
+//    __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
+//    __ ldr(r2,
+//           FieldMemOperand(r3,
+//                           SharedFunctionInfo::kFormalParameterCountOffset));
+//    __ ldr(r3,
+//           MemOperand(r3, SharedFunctionInfo::kCodeOffset - kHeapObjectTag));
+//    __ add(r3, r3, Operand(Code::kHeaderSize - kHeapObjectTag));
+//    __ cmp(r2, r0);  // Check formal and actual parameter counts.
+//    __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),
+//                         RelocInfo::CODE_TARGET, ne);
+//
+//    // 7. Jump to the code in r3 without checking arguments.
+//    ParameterCount expected(0);
+//    __ InvokeCode(r3, expected, expected, JUMP_FUNCTION);
+//  }
+}
+
+
+void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
+  UNIMPLEMENTED_();
+  __ nop();
+  __ break_(0x77712);
+//  const int kIndexOffset    = -5 * kPointerSize;
+//  const int kLimitOffset    = -4 * kPointerSize;
+//  const int kArgsOffset     =  2 * kPointerSize;
+//  const int kRecvOffset     =  3 * kPointerSize;
+//  const int kFunctionOffset =  4 * kPointerSize;
+//
+//  __ EnterInternalFrame();
+//
+//  __ ldr(r0, MemOperand(fp, kFunctionOffset));  // get the function
+//  __ push(r0);
+//  __ ldr(r0, MemOperand(fp, kArgsOffset));  // get the args array
+//  __ push(r0);
+//  __ InvokeBuiltin(Builtins::APPLY_PREPARE, CALL_JS);
+//
+//  Label no_preemption, retry_preemption;
+//  __ bind(&retry_preemption);
+//  ExternalReference stack_guard_limit_address =
+//      ExternalReference::address_of_stack_guard_limit();
+//  __ mov(r2, Operand(stack_guard_limit_address));
+//  __ ldr(r2, MemOperand(r2));
+//  __ cmp(sp, r2);
+//  __ b(hi, &no_preemption);
+//
+//  // We have encountered a preemption or stack overflow already before we push
+//  // the array contents.  Save r0 which is the Smi-tagged length of the array.
+//  __ push(r0);
+//
+//  // Runtime routines expect at least one argument, so give it a Smi.
+//  __ mov(r0, Operand(Smi::FromInt(0)));
+//  __ push(r0);
+//  __ CallRuntime(Runtime::kStackGuard, 1);
+//
+//  // Since we returned, it wasn't a stack overflow.  Restore r0 and try again.
+//  __ pop(r0);
+//  __ b(&retry_preemption);
+//
+//  __ bind(&no_preemption);
+//
+//  // Eagerly check for stack-overflow before starting to push the arguments.
+//  // r0: number of arguments.
+//  // r2: stack limit.
+//  Label okay;
+//  __ sub(r2, sp, r2);
+//
+//  __ cmp(r2, Operand(r0, LSL, kPointerSizeLog2 - kSmiTagSize));
+//  __ b(hi, &okay);
+//
+//  // Out of stack space.
+//  __ ldr(r1, MemOperand(fp, kFunctionOffset));
+//  __ push(r1);
+//  __ push(r0);
+//  __ InvokeBuiltin(Builtins::APPLY_OVERFLOW, CALL_JS);
+//
+//  // Push current limit and index.
+//  __ bind(&okay);
+//  __ push(r0);  // limit
+//  __ mov(r1, Operand(0));  // initial index
+//  __ push(r1);
+//
+//  // Change context eagerly to get the right global object if necessary.
+//  __ ldr(r0, MemOperand(fp, kFunctionOffset));
+//  __ ldr(cp, FieldMemOperand(r0, JSFunction::kContextOffset));
+//
+//  // Compute the receiver.
+//  Label call_to_object, use_global_receiver, push_receiver;
+//  __ ldr(r0, MemOperand(fp, kRecvOffset));
+//  __ tst(r0, Operand(kSmiTagMask));
+//  __ b(eq, &call_to_object);
+//  __ LoadRoot(r1, Heap::kNullValueRootIndex);
+//  __ cmp(r0, r1);
+//  __ b(eq, &use_global_receiver);
+//  __ LoadRoot(r1, Heap::kUndefinedValueRootIndex);
+//  __ cmp(r0, r1);
+//  __ b(eq, &use_global_receiver);
+//
+//  // Check if the receiver is already a JavaScript object.
+//  // r0: receiver
+//  __ CompareObjectType(r0, r1, r1, FIRST_JS_OBJECT_TYPE);
+//  __ b(lt, &call_to_object);
+//  __ cmp(r1, Operand(LAST_JS_OBJECT_TYPE));
+//  __ b(le, &push_receiver);
+//
+//  // Convert the receiver to a regular object.
+//  // r0: receiver
+//  __ bind(&call_to_object);
+//  __ push(r0);
+//  __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_JS);
+//  __ b(&push_receiver);
+//
+//  // Use the current global receiver object as the receiver.
+//  __ bind(&use_global_receiver);
+//  const int kGlobalOffset =
+//      Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize;
+//  __ ldr(r0, FieldMemOperand(cp, kGlobalOffset));
+//  __ ldr(r0, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
+//
+//  // Push the receiver.
+//  // r0: receiver
+//  __ bind(&push_receiver);
+//  __ push(r0);
+//
+//  // Copy all arguments from the array to the stack.
+//  Label entry, loop;
+//  __ ldr(r0, MemOperand(fp, kIndexOffset));
+//  __ b(&entry);
+//
+//  // Load the current argument from the arguments array and push it to the
+//  // stack.
+//  // r0: current argument index
+//  __ bind(&loop);
+//  __ ldr(r1, MemOperand(fp, kArgsOffset));
+//  __ push(r1);
+//  __ push(r0);
+//
+//  // Call the runtime to access the property in the arguments array.
+//  __ CallRuntime(Runtime::kGetProperty, 2);
+//  __ push(r0);
+//
+//  // Use inline caching to access the arguments.
+//  __ ldr(r0, MemOperand(fp, kIndexOffset));
+//  __ add(r0, r0, Operand(1 << kSmiTagSize));
+//  __ str(r0, MemOperand(fp, kIndexOffset));
+//
+//  // Test if the copy loop has finished copying all the elements from the
+//  // arguments object.
+//  __ bind(&entry);
+//  __ ldr(r1, MemOperand(fp, kLimitOffset));
+//  __ cmp(r0, r1);
+//  __ b(ne, &loop);
+//
+//  // Invoke the function.
+//  ParameterCount actual(r0);
+//  __ mov(r0, Operand(r0, ASR, kSmiTagSize));
+//  __ ldr(r1, MemOperand(fp, kFunctionOffset));
+//  __ InvokeFunction(r1, actual, CALL_FUNCTION);
+//
+//  // Tear down the internal frame and remove function, receiver and args.
+//  __ LeaveInternalFrame();
+//  __ add(sp, sp, Operand(3 * kPointerSize));
+//  __ Jump(lr);
+}
+
+//static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) {
+//  UNIMPLEMENTED_();
+////  __ mov(r0, Operand(r0, LSL, kSmiTagSize));
+////  __ mov(r4, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
+////  __ stm(db_w, sp, r0.bit() | r1.bit() | r4.bit() | fp.bit() | lr.bit());
+////  __ add(fp, sp, Operand(3 * kPointerSize));
+//  __ sll(a0, a0, kSmiTagSize);
+//  __ li(t0, Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
+//  __ multi_push_reversed(a0.bit() | a1.bit() | t0.bit() | fp.bit() | ra.bit());
+//  __ add(fp, sp, Operand(3 * kPointerSize));
+//}
+
+
+//static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) {
+//  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- r0 : result being passed through
+//  // -----------------------------------
+//  // Get the number of arguments passed (as a smi), tear down the frame and
+//  // then tear down the parameters.
+////  __ ldr(r1, MemOperand(fp, -3 * kPointerSize));
+////  __ mov(sp, fp);
+////  __ ldm(ia_w, sp, fp.bit() | lr.bit());
+////  __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2 - kSmiTagSize));
+////  __ add(sp, sp, Operand(kPointerSize));  // adjust for receiver
+//  __ lw(a1, MemOperand(fp, -3 * kPointerSize));
+//  __ mov(sp, fp);
+//  __ multi_pop_reversed(fp.bit() | ra.bit());
+//  __ sll(ip, a1, kPointerSizeLog2 - kSmiTagSize);
+////  __ addiu(ip, ip, StandardFrameConstants::kRArgsSlotsSize);
+//  __ addu(sp, sp, ip);
+//  __ addiu(sp, sp, Operand(kPointerSize));  // adjust for receiver
+//}
+
+
+void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
+  UNIMPLEMENTED_();
+//  // ----------- S t a t e -------------
+//  //  -- r0->a0 : actual number of arguments
+//  //  -- r1->a1 : function (passed through to callee)
+//  //  -- r2->a2 : expected number of arguments
+//  //  -- r3->a3 : code entry to call
+////  //  -- v1     : use args slots (==0) or not (!=0)
+//  // -----------------------------------
+//
+//  Label invoke, dont_adapt_arguments;
+//
+//  Label enough, too_few;
+////  __ cmp(r0, Operand(r2));
+////  __ b(lt, &too_few);
+////  __ cmp(r2, Operand(SharedFunctionInfo::kDontAdaptArgumentsSentinel));
+////  __ b(eq, &dont_adapt_arguments);
+//  __ bcond(less, &too_few, a0, Operand(a2));
+//  __ nop(); // NOP_ADDED
+//  __ bcond(eq, &dont_adapt_arguments, a2, Operand(SharedFunctionInfo::kDontAdaptArgumentsSentinel));
+//  __ nop(); // NOP_ADDED
+//
+//  {  // Enough parameters: actual >= expected
+//    __ bind(&enough);
+//    EnterArgumentsAdaptorFrame(masm);
+//
+//    // Calculate copy start address into r0 and copy end address into r2.
+//    // r0: actual number of arguments as a smi
+//    // r1: function
+//    // r2: expected number of arguments
+//    // r3: code entry to call
+////    __ add(r0, fp, Operand(r0, LSL, kPointerSizeLog2 - kSmiTagSize));
+//    // adjust for return address and receiver
+////    __ add(r0, r0, Operand(2 * kPointerSize));
+////    __ sub(r2, r0, Operand(r2, LSL, kPointerSizeLog2));
+//    __ sll(a0, a0, kPointerSizeLog2 - kSmiTagSize);
+//    __ addu(a0, a0, fp);
+//    // adjust for return address and receiver
+//    __ addu(a0, a0, Operand(2 * kPointerSize));
+//    __ sll(a2, a2, kPointerSizeLog2);
+////    __ break_(0x11175);
+//    __ subu(a2, a0, Operand(a2));
+//
+//    // Copy the arguments (including the receiver) to the new stack frame.
+//    // r0: copy start address
+//    // r1: function
+//    // r2: copy end address
+//    // r3: code entry to call
+//
+//    Label copy;
+//    __ bind(&copy);
+////    __ ldr(ip, MemOperand(r0, 0));
+////    __ push(ip);
+////    __ cmp(r0, r2);  // Compare before moving to next argument.
+////    __ sub(r0, r0, Operand(kPointerSize));
+////    __ b(ne, &copy);
+//    __ lw(ip, MemOperand(a0, 0));
+//    __ push(ip);
+//    __ bcond(ne, &copy, a0, Operand(a2));
+//    __ addiu(a0, a0, Operand(-kPointerSize));
+//
+////    __ b(&invoke);
+//    __ b(&invoke);
+//    __ nop();
+//  }
+//
+//  {  // Too few parameters: Actual < expected
+//    __ bind(&too_few);
+//    EnterArgumentsAdaptorFrame(masm);
+//
+//    // Calculate copy start address into r0 and copy end address is fp.
+//    // r0: actual number of arguments as a smi
+//    // r1: function
+//    // r2: expected number of arguments
+//    // r3: code entry to call
+////    __ add(r0, fp, Operand(r0, LSL, kPointerSizeLog2 - kSmiTagSize));
+//    __ sll(a0, a0, kPointerSizeLog2 - kSmiTagSize);
+//    __ addu(a0, a0, fp);
+//
+//    // Copy the arguments (including the receiver) to the new stack frame.
+//    // r0: copy start address
+//    // r1: function
+//    // r2: expected number of arguments
+//    // r3: code entry to call
+//    Label copy;
+//    __ bind(&copy);
+//    // Adjust load for return address and receiver.
+////    __ ldr(ip, MemOperand(r0, 2 * kPointerSize));
+////    __ push(ip);
+////    __ cmp(r0, fp);  // Compare before moving to next argument.
+////    __ sub(r0, r0, Operand(kPointerSize));
+////    __ b(ne, &copy);
+//    __ lw(ip, MemOperand(a0, 2 * kPointerSize));
+//    __ push(ip);
+//    __ bcond(ne, &copy, a0, Operand(fp));
+//    __ addiu(a0, a0, Operand(-kPointerSize));
+//
+//    // Fill the remaining expected arguments with undefined.
+//    // r1: function
+//    // r2: expected number of arguments
+//    // r3: code entry to call
+//    __ LoadRoot(ip, Heap::kUndefinedValueRootIndex);
+////    __ sub(r2, fp, Operand(r2, LSL, kPointerSizeLog2));
+////    __ sub(r2, r2, Operand(4 * kPointerSize));  // Adjust for frame.
+//    __ sll(a2, a2, kPointerSizeLog2);
+//    __ subu(a2, fp, Operand(a2));
+//    __ addiu(a2, a2, Operand(-4 * kPointerSize));  // Adjust for frame.
+//
+//    Label fill;
+//    __ bind(&fill);
+//    __ push(ip);
+////    __ cmp(sp, r2);
+////    __ b(ne, &fill);
+//    __ bcond(ne, &fill, sp, Operand(a2));
+//    __ nop(); // NOP_ADDED
+//  }
+//
+//  // Call the entry point.
+//  __ bind(&invoke);
+//
+//  // Check if we need args slots
+//  // We don't restore sp on return because LeaveArgumentsAdaptorFrame does the
+//  // job for us.
+////  __ bne(v1, zero_reg, 3);
+////  __ nop();
+//////  __ break_(0x1076);
+////  __ addiu(sp, sp, -StandardFrameConstants::kRArgsSlotsSize);
+//
+////  __ Call(r3);
+//  __ Call(a3);
+//  __ nop(); // NOP_ADDED
+//
+//  // We don't restore because LeaveArgumentsAdaptorFrame does it.
+////  __ addiu(sp, sp, x-StandardFrameConstants::kRArgsSlotsSize);
+//
+//  // Exit frame and return.
+//  LeaveArgumentsAdaptorFrame(masm);
+////  __ Jump(lr);
+//  __ Jump(ra);
+//  __ nop(); // NOP_ADDED
+//
+//
+//  // -------------------------------------------
+//  // Dont adapt arguments.
+//  // -------------------------------------------
+//  __ bind(&dont_adapt_arguments);
+////  __ Jump(r3);
+//  __ Jump(a3);
+//  __ nop(); // NOP_ADDED
+}
+
+
+#undef __
+
+} }  // namespace v8::internal