[builtins] Port parameter and argument-related code stubs to CSA

src/ia32/code-stubs-ia32.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_IA32
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 3047 matching lines @@
 
   Label fast_elements_case;
   __ cmp(ecx, Immediate(FAST_ELEMENTS));
   __ j(equal, &fast_elements_case);
   GenerateCase(masm, FAST_HOLEY_ELEMENTS);
 
   __ bind(&fast_elements_case);
   GenerateCase(masm, FAST_ELEMENTS);
 }
 
-void FastNewRestParameterStub::Generate(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- edi    : function
-  //  -- esi    : context
-  //  -- ebp    : frame pointer
-  //  -- esp[0] : return address
-  // -----------------------------------
-  __ AssertFunction(edi);
-
-  // Make edx point to the JavaScript frame.
-  __ mov(edx, ebp);
-  if (skip_stub_frame()) {
-    // For Ignition we need to skip the handler/stub frame to reach the
-    // JavaScript frame for the function.
-    __ mov(edx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
-  }
-  if (FLAG_debug_code) {
-    Label ok;
-    __ cmp(edi, Operand(edx, StandardFrameConstants::kFunctionOffset));
-    __ j(equal, &ok);
-    __ Abort(kInvalidFrameForFastNewRestArgumentsStub);
-    __ bind(&ok);
-  }
-
-  // Check if we have rest parameters (only possible if we have an
-  // arguments adaptor frame below the function frame).
-  Label no_rest_parameters;
-  __ mov(ebx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
-  __ cmp(Operand(ebx, CommonFrameConstants::kContextOrFrameTypeOffset),
-         Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
-  __ j(not_equal, &no_rest_parameters, Label::kNear);
-
-  // Check if the arguments adaptor frame contains more arguments than
-  // specified by the function's internal formal parameter count.
-  Label rest_parameters;
-  __ mov(ecx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
-  __ mov(eax, Operand(ebx, ArgumentsAdaptorFrameConstants::kLengthOffset));
-  __ sub(eax,
-         FieldOperand(ecx, SharedFunctionInfo::kFormalParameterCountOffset));
-  __ j(greater, &rest_parameters);
-
-  // Return an empty rest parameter array.
-  __ bind(&no_rest_parameters);
-  {
-    // ----------- S t a t e -------------
-    //  -- esi    : context
-    //  -- esp[0] : return address
-    // -----------------------------------
-
-    // Allocate an empty rest parameter array.
-    Label allocate, done_allocate;
-    __ Allocate(JSArray::kSize, eax, edx, ecx, &allocate, NO_ALLOCATION_FLAGS);
-    __ bind(&done_allocate);
-
-    // Setup the rest parameter array in rax.
-    __ LoadGlobalFunction(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, ecx);
-    __ mov(FieldOperand(eax, JSArray::kMapOffset), ecx);
-    __ mov(ecx, isolate()->factory()->empty_fixed_array());
-    __ mov(FieldOperand(eax, JSArray::kPropertiesOffset), ecx);
-    __ mov(FieldOperand(eax, JSArray::kElementsOffset), ecx);
-    __ mov(FieldOperand(eax, JSArray::kLengthOffset), Immediate(Smi::kZero));
-    STATIC_ASSERT(JSArray::kSize == 4 * kPointerSize);
-    __ Ret();
-
-    // Fall back to %AllocateInNewSpace.
-    __ bind(&allocate);
-    {
-      FrameScope scope(masm, StackFrame::INTERNAL);
-      __ Push(Smi::FromInt(JSArray::kSize));
-      __ CallRuntime(Runtime::kAllocateInNewSpace);
-    }
-    __ jmp(&done_allocate);
-  }
-
-  __ bind(&rest_parameters);
-  {
-    // Compute the pointer to the first rest parameter (skippping the receiver).
-    __ lea(ebx,
-           Operand(ebx, eax, times_half_pointer_size,
-                   StandardFrameConstants::kCallerSPOffset - 1 * kPointerSize));
-
-    // ----------- S t a t e -------------
-    //  -- esi    : context
-    //  -- eax    : number of rest parameters (tagged)
-    //  -- ebx    : pointer to first rest parameters
-    //  -- esp[0] : return address
-    // -----------------------------------
-
-    // Allocate space for the rest parameter array plus the backing store.
-    Label allocate, done_allocate;
-    __ lea(ecx, Operand(eax, times_half_pointer_size,
-                        JSArray::kSize + FixedArray::kHeaderSize));
-    __ Allocate(ecx, edx, edi, no_reg, &allocate, NO_ALLOCATION_FLAGS);
-    __ bind(&done_allocate);
-
-    // Setup the elements array in edx.
-    __ mov(FieldOperand(edx, FixedArray::kMapOffset),
-           isolate()->factory()->fixed_array_map());
-    __ mov(FieldOperand(edx, FixedArray::kLengthOffset), eax);
-    {
-      Label loop, done_loop;
-      __ Move(ecx, Smi::kZero);
-      __ bind(&loop);
-      __ cmp(ecx, eax);
-      __ j(equal, &done_loop, Label::kNear);
-      __ mov(edi, Operand(ebx, 0 * kPointerSize));
-      __ mov(FieldOperand(edx, ecx, times_half_pointer_size,
-                          FixedArray::kHeaderSize),
-             edi);
-      __ sub(ebx, Immediate(1 * kPointerSize));
-      __ add(ecx, Immediate(Smi::FromInt(1)));
-      __ jmp(&loop);
-      __ bind(&done_loop);
-    }
-
-    // Setup the rest parameter array in edi.
-    __ lea(edi,
-           Operand(edx, eax, times_half_pointer_size, FixedArray::kHeaderSize));
-    __ LoadGlobalFunction(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, ecx);
-    __ mov(FieldOperand(edi, JSArray::kMapOffset), ecx);
-    __ mov(FieldOperand(edi, JSArray::kPropertiesOffset),
-           isolate()->factory()->empty_fixed_array());
-    __ mov(FieldOperand(edi, JSArray::kElementsOffset), edx);
-    __ mov(FieldOperand(edi, JSArray::kLengthOffset), eax);
-    STATIC_ASSERT(JSArray::kSize == 4 * kPointerSize);
-    __ mov(eax, edi);
-    __ Ret();
-
-    // Fall back to %AllocateInNewSpace (if not too big).
-    Label too_big_for_new_space;
-    __ bind(&allocate);
-    __ cmp(ecx, Immediate(kMaxRegularHeapObjectSize));
-    __ j(greater, &too_big_for_new_space);
-    {
-      FrameScope scope(masm, StackFrame::INTERNAL);
-      __ SmiTag(ecx);
-      __ Push(eax);
-      __ Push(ebx);
-      __ Push(ecx);
-      __ CallRuntime(Runtime::kAllocateInNewSpace);
-      __ mov(edx, eax);
-      __ Pop(ebx);
-      __ Pop(eax);
-    }
-    __ jmp(&done_allocate);
-
-    // Fall back to %NewRestParameter.
-    __ bind(&too_big_for_new_space);
-    __ PopReturnAddressTo(ecx);
-    // We reload the function from the caller frame due to register pressure
-    // within this stub. This is the slow path, hence reloading is preferable.
-    if (skip_stub_frame()) {
-      // For Ignition we need to skip the handler/stub frame to reach the
-      // JavaScript frame for the function.
-      __ mov(edx, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
-      __ Push(Operand(edx, StandardFrameConstants::kFunctionOffset));
-    } else {
-      __ Push(Operand(ebp, StandardFrameConstants::kFunctionOffset));
-    }
-    __ PushReturnAddressFrom(ecx);
-    __ TailCallRuntime(Runtime::kNewRestParameter);
-  }
-}
-
-
-void FastNewSloppyArgumentsStub::Generate(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- edi    : function
-  //  -- esi    : context
-  //  -- ebp    : frame pointer
-  //  -- esp[0] : return address
-  // -----------------------------------
-  __ AssertFunction(edi);
-
-  // Make ecx point to the JavaScript frame.
-  __ mov(ecx, ebp);
-  if (skip_stub_frame()) {
-    // For Ignition we need to skip the handler/stub frame to reach the
-    // JavaScript frame for the function.
-    __ mov(ecx, Operand(ecx, StandardFrameConstants::kCallerFPOffset));
-  }
-  if (FLAG_debug_code) {
-    Label ok;
-    __ cmp(edi, Operand(ecx, StandardFrameConstants::kFunctionOffset));
-    __ j(equal, &ok);
-    __ Abort(kInvalidFrameForFastNewSloppyArgumentsStub);
-    __ bind(&ok);
-  }
-
-  // TODO(bmeurer): Cleanup to match the FastNewStrictArgumentsStub.
-  __ mov(ebx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
-  __ mov(ebx,
-         FieldOperand(ebx, SharedFunctionInfo::kFormalParameterCountOffset));
-  __ lea(edx, Operand(ecx, ebx, times_half_pointer_size,
-                      StandardFrameConstants::kCallerSPOffset));
-
-  // ebx : number of parameters (tagged)
-  // edx : parameters pointer
-  // edi : function
-  // ecx : JavaScript frame pointer.
-  // esp[0] : return address
-
-  // Check if the calling frame is an arguments adaptor frame.
-  Label adaptor_frame, try_allocate, runtime;
-  __ mov(eax, Operand(ecx, StandardFrameConstants::kCallerFPOffset));
-  __ mov(eax, Operand(eax, CommonFrameConstants::kContextOrFrameTypeOffset));
-  __ cmp(eax, Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
-  __ j(equal, &adaptor_frame, Label::kNear);
-
-  // No adaptor, parameter count = argument count.
-  __ mov(ecx, ebx);
-  __ push(ebx);
-  __ jmp(&try_allocate, Label::kNear);
-
-  // We have an adaptor frame. Patch the parameters pointer.
-  __ bind(&adaptor_frame);
-  __ push(ebx);
-  __ mov(edx, Operand(ecx, StandardFrameConstants::kCallerFPOffset));
-  __ mov(ecx, Operand(edx, ArgumentsAdaptorFrameConstants::kLengthOffset));
-  __ lea(edx, Operand(edx, ecx, times_2,
-                      StandardFrameConstants::kCallerSPOffset));
-
-  // ebx = parameter count (tagged)
-  // ecx = argument count (smi-tagged)
-  // Compute the mapped parameter count = min(ebx, ecx) in ebx.
-  __ cmp(ebx, ecx);
-  __ j(less_equal, &try_allocate, Label::kNear);
-  __ mov(ebx, ecx);
-
-  // Save mapped parameter count and function.
-  __ bind(&try_allocate);
-  __ push(edi);
-  __ push(ebx);
-
-  // Compute the sizes of backing store, parameter map, and arguments object.
-  // 1. Parameter map, has 2 extra words containing context and backing store.
-  const int kParameterMapHeaderSize =
-      FixedArray::kHeaderSize + 2 * kPointerSize;
-  Label no_parameter_map;
-  __ test(ebx, ebx);
-  __ j(zero, &no_parameter_map, Label::kNear);
-  __ lea(ebx, Operand(ebx, times_2, kParameterMapHeaderSize));
-  __ bind(&no_parameter_map);
-
-  // 2. Backing store.
-  __ lea(ebx, Operand(ebx, ecx, times_2, FixedArray::kHeaderSize));
-
-  // 3. Arguments object.
-  __ add(ebx, Immediate(JSSloppyArgumentsObject::kSize));
-
-  // Do the allocation of all three objects in one go.
-  __ Allocate(ebx, eax, edi, no_reg, &runtime, NO_ALLOCATION_FLAGS);
-
-  // eax = address of new object(s) (tagged)
-  // ecx = argument count (smi-tagged)
-  // esp[0] = mapped parameter count (tagged)
-  // esp[4] = function
-  // esp[8] = parameter count (tagged)
-  // Get the arguments map from the current native context into edi.
-  Label has_mapped_parameters, instantiate;
-  __ mov(edi, NativeContextOperand());
-  __ mov(ebx, Operand(esp, 0 * kPointerSize));
-  __ test(ebx, ebx);
-  __ j(not_zero, &has_mapped_parameters, Label::kNear);
-  __ mov(
-      edi,
-      Operand(edi, Context::SlotOffset(Context::SLOPPY_ARGUMENTS_MAP_INDEX)));
-  __ jmp(&instantiate, Label::kNear);
-
-  __ bind(&has_mapped_parameters);
-  __ mov(edi, Operand(edi, Context::SlotOffset(
-                               Context::FAST_ALIASED_ARGUMENTS_MAP_INDEX)));
-  __ bind(&instantiate);
-
-  // eax = address of new object (tagged)
-  // ebx = mapped parameter count (tagged)
-  // ecx = argument count (smi-tagged)
-  // edi = address of arguments map (tagged)
-  // esp[0] = mapped parameter count (tagged)
-  // esp[4] = function
-  // esp[8] = parameter count (tagged)
-  // Copy the JS object part.
-  __ mov(FieldOperand(eax, JSObject::kMapOffset), edi);
-  __ mov(FieldOperand(eax, JSObject::kPropertiesOffset),
-         masm->isolate()->factory()->empty_fixed_array());
-  __ mov(FieldOperand(eax, JSObject::kElementsOffset),
-         masm->isolate()->factory()->empty_fixed_array());
-
-  // Set up the callee in-object property.
-  STATIC_ASSERT(JSSloppyArgumentsObject::kCalleeIndex == 1);
-  __ mov(edi, Operand(esp, 1 * kPointerSize));
-  __ AssertNotSmi(edi);
-  __ mov(FieldOperand(eax, JSSloppyArgumentsObject::kCalleeOffset), edi);
-
-  // Use the length (smi tagged) and set that as an in-object property too.
-  __ AssertSmi(ecx);
-  __ mov(FieldOperand(eax, JSSloppyArgumentsObject::kLengthOffset), ecx);
-
-  // Set up the elements pointer in the allocated arguments object.
-  // If we allocated a parameter map, edi will point there, otherwise to the
-  // backing store.
-  __ lea(edi, Operand(eax, JSSloppyArgumentsObject::kSize));
-  __ mov(FieldOperand(eax, JSObject::kElementsOffset), edi);
-
-  // eax = address of new object (tagged)
-  // ebx = mapped parameter count (tagged)
-  // ecx = argument count (tagged)
-  // edx = address of receiver argument
-  // edi = address of parameter map or backing store (tagged)
-  // esp[0] = mapped parameter count (tagged)
-  // esp[4] = function
-  // esp[8] = parameter count (tagged)
-  // Free two registers.
-  __ push(edx);
-  __ push(eax);
-
-  // Initialize parameter map. If there are no mapped arguments, we're done.
-  Label skip_parameter_map;
-  __ test(ebx, ebx);
-  __ j(zero, &skip_parameter_map);
-
-  __ mov(FieldOperand(edi, FixedArray::kMapOffset),
-         Immediate(isolate()->factory()->sloppy_arguments_elements_map()));
-  __ lea(eax, Operand(ebx, reinterpret_cast<intptr_t>(Smi::FromInt(2))));
-  __ mov(FieldOperand(edi, FixedArray::kLengthOffset), eax);
-  __ mov(FieldOperand(edi, FixedArray::kHeaderSize + 0 * kPointerSize), esi);
-  __ lea(eax, Operand(edi, ebx, times_2, kParameterMapHeaderSize));
-  __ mov(FieldOperand(edi, FixedArray::kHeaderSize + 1 * kPointerSize), eax);
-
-  // Copy the parameter slots and the holes in the arguments.
-  // We need to fill in mapped_parameter_count slots. They index the context,
-  // where parameters are stored in reverse order, at
-  //   MIN_CONTEXT_SLOTS .. MIN_CONTEXT_SLOTS+parameter_count-1
-  // The mapped parameter thus need to get indices
-  //   MIN_CONTEXT_SLOTS+parameter_count-1 ..
-  //       MIN_CONTEXT_SLOTS+parameter_count-mapped_parameter_count
-  // We loop from right to left.
-  Label parameters_loop, parameters_test;
-  __ push(ecx);
-  __ mov(eax, Operand(esp, 3 * kPointerSize));
-  __ mov(ebx, Immediate(Smi::FromInt(Context::MIN_CONTEXT_SLOTS)));
-  __ add(ebx, Operand(esp, 5 * kPointerSize));
-  __ sub(ebx, eax);
-  __ mov(ecx, isolate()->factory()->the_hole_value());
-  __ mov(edx, edi);
-  __ lea(edi, Operand(edi, eax, times_2, kParameterMapHeaderSize));
-  // eax = loop variable (tagged)
-  // ebx = mapping index (tagged)
-  // ecx = the hole value
-  // edx = address of parameter map (tagged)
-  // edi = address of backing store (tagged)
-  // esp[0] = argument count (tagged)
-  // esp[4] = address of new object (tagged)
-  // esp[8] = address of receiver argument
-  // esp[12] = mapped parameter count (tagged)
-  // esp[16] = function
-  // esp[20] = parameter count (tagged)
-  __ jmp(&parameters_test, Label::kNear);
-
-  __ bind(&parameters_loop);
-  __ sub(eax, Immediate(Smi::FromInt(1)));
-  __ mov(FieldOperand(edx, eax, times_2, kParameterMapHeaderSize), ebx);
-  __ mov(FieldOperand(edi, eax, times_2, FixedArray::kHeaderSize), ecx);
-  __ add(ebx, Immediate(Smi::FromInt(1)));
-  __ bind(&parameters_test);
-  __ test(eax, eax);
-  __ j(not_zero, &parameters_loop, Label::kNear);
-  __ pop(ecx);
-
-  __ bind(&skip_parameter_map);
-
-  // ecx = argument count (tagged)
-  // edi = address of backing store (tagged)
-  // esp[0] = address of new object (tagged)
-  // esp[4] = address of receiver argument
-  // esp[8] = mapped parameter count (tagged)
-  // esp[12] = function
-  // esp[16] = parameter count (tagged)
-  // Copy arguments header and remaining slots (if there are any).
-  __ mov(FieldOperand(edi, FixedArray::kMapOffset),
-         Immediate(isolate()->factory()->fixed_array_map()));
-  __ mov(FieldOperand(edi, FixedArray::kLengthOffset), ecx);
-
-  Label arguments_loop, arguments_test;
-  __ mov(ebx, Operand(esp, 2 * kPointerSize));
-  __ mov(edx, Operand(esp, 1 * kPointerSize));
-  __ sub(edx, ebx);  // Is there a smarter way to do negative scaling?
-  __ sub(edx, ebx);
-  __ jmp(&arguments_test, Label::kNear);
-
-  __ bind(&arguments_loop);
-  __ sub(edx, Immediate(kPointerSize));
-  __ mov(eax, Operand(edx, 0));
-  __ mov(FieldOperand(edi, ebx, times_2, FixedArray::kHeaderSize), eax);
-  __ add(ebx, Immediate(Smi::FromInt(1)));
-
-  __ bind(&arguments_test);
-  __ cmp(ebx, ecx);
-  __ j(less, &arguments_loop, Label::kNear);
-
-  // Restore.
-  __ pop(eax);  // Address of arguments object.
-  __ Drop(4);
-
-  // Return.
-  __ ret(0);
-
-  // Do the runtime call to allocate the arguments object.
-  __ bind(&runtime);
-  __ pop(eax);   // Remove saved mapped parameter count.
-  __ pop(edi);   // Pop saved function.
-  __ pop(eax);   // Remove saved parameter count.
-  __ pop(eax);   // Pop return address.
-  __ push(edi);  // Push function.
-  __ push(edx);  // Push parameters pointer.
-  __ push(ecx);  // Push parameter count.
-  __ push(eax);  // Push return address.
-  __ TailCallRuntime(Runtime::kNewSloppyArguments);
-}
-
-void FastNewStrictArgumentsStub::Generate(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- edi    : function
-  //  -- esi    : context
-  //  -- ebp    : frame pointer
-  //  -- esp[0] : return address
-  // -----------------------------------
-  __ AssertFunction(edi);
-
-  // Make edx point to the JavaScript frame.
-  __ mov(edx, ebp);
-  if (skip_stub_frame()) {
-    // For Ignition we need to skip the handler/stub frame to reach the
-    // JavaScript frame for the function.
-    __ mov(edx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
-  }
-  if (FLAG_debug_code) {
-    Label ok;
-    __ cmp(edi, Operand(edx, StandardFrameConstants::kFunctionOffset));
-    __ j(equal, &ok);
-    __ Abort(kInvalidFrameForFastNewStrictArgumentsStub);
-    __ bind(&ok);
-  }
-
-  // Check if we have an arguments adaptor frame below the function frame.
-  Label arguments_adaptor, arguments_done;
-  __ mov(ebx, Operand(edx, StandardFrameConstants::kCallerFPOffset));
-  __ cmp(Operand(ebx, CommonFrameConstants::kContextOrFrameTypeOffset),
-         Immediate(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR)));
-  __ j(equal, &arguments_adaptor, Label::kNear);
-  {
-    __ mov(eax, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
-    __ mov(eax,
-           FieldOperand(eax, SharedFunctionInfo::kFormalParameterCountOffset));
-    __ lea(ebx,
-           Operand(edx, eax, times_half_pointer_size,
-                   StandardFrameConstants::kCallerSPOffset - 1 * kPointerSize));
-  }
-  __ jmp(&arguments_done, Label::kNear);
-  __ bind(&arguments_adaptor);
-  {
-    __ mov(eax, Operand(ebx, ArgumentsAdaptorFrameConstants::kLengthOffset));
-    __ lea(ebx,
-           Operand(ebx, eax, times_half_pointer_size,
-                   StandardFrameConstants::kCallerSPOffset - 1 * kPointerSize));
-  }
-  __ bind(&arguments_done);
-
-  // ----------- S t a t e -------------
-  //  -- eax    : number of arguments (tagged)
-  //  -- ebx    : pointer to the first argument
-  //  -- esi    : context
-  //  -- esp[0] : return address
-  // -----------------------------------
-
-  // Allocate space for the strict arguments object plus the backing store.
-  Label allocate, done_allocate;
-  __ lea(ecx,
-         Operand(eax, times_half_pointer_size,
-                 JSStrictArgumentsObject::kSize + FixedArray::kHeaderSize));
-  __ Allocate(ecx, edx, edi, no_reg, &allocate, NO_ALLOCATION_FLAGS);
-  __ bind(&done_allocate);
-
-  // Setup the elements array in edx.
-  __ mov(FieldOperand(edx, FixedArray::kMapOffset),
-         isolate()->factory()->fixed_array_map());
-  __ mov(FieldOperand(edx, FixedArray::kLengthOffset), eax);
-  {
-    Label loop, done_loop;
-    __ Move(ecx, Smi::kZero);
-    __ bind(&loop);
-    __ cmp(ecx, eax);
-    __ j(equal, &done_loop, Label::kNear);
-    __ mov(edi, Operand(ebx, 0 * kPointerSize));
-    __ mov(FieldOperand(edx, ecx, times_half_pointer_size,
-                        FixedArray::kHeaderSize),
-           edi);
-    __ sub(ebx, Immediate(1 * kPointerSize));
-    __ add(ecx, Immediate(Smi::FromInt(1)));
-    __ jmp(&loop);
-    __ bind(&done_loop);
-  }
-
-  // Setup the rest parameter array in edi.
-  __ lea(edi,
-         Operand(edx, eax, times_half_pointer_size, FixedArray::kHeaderSize));
-  __ LoadGlobalFunction(Context::STRICT_ARGUMENTS_MAP_INDEX, ecx);
-  __ mov(FieldOperand(edi, JSStrictArgumentsObject::kMapOffset), ecx);
-  __ mov(FieldOperand(edi, JSStrictArgumentsObject::kPropertiesOffset),
-         isolate()->factory()->empty_fixed_array());
-  __ mov(FieldOperand(edi, JSStrictArgumentsObject::kElementsOffset), edx);
-  __ mov(FieldOperand(edi, JSStrictArgumentsObject::kLengthOffset), eax);
-  STATIC_ASSERT(JSStrictArgumentsObject::kSize == 4 * kPointerSize);
-  __ mov(eax, edi);
-  __ Ret();
-
-  // Fall back to %AllocateInNewSpace (if not too big).
-  Label too_big_for_new_space;
-  __ bind(&allocate);
-  __ cmp(ecx, Immediate(kMaxRegularHeapObjectSize));
-  __ j(greater, &too_big_for_new_space);
-  {
-    FrameScope scope(masm, StackFrame::INTERNAL);
-    __ SmiTag(ecx);
-    __ Push(eax);
-    __ Push(ebx);
-    __ Push(ecx);
-    __ CallRuntime(Runtime::kAllocateInNewSpace);
-    __ mov(edx, eax);
-    __ Pop(ebx);
-    __ Pop(eax);
-  }
-  __ jmp(&done_allocate);
-
-  // Fall back to %NewStrictArguments.
-  __ bind(&too_big_for_new_space);
-  __ PopReturnAddressTo(ecx);
-  // We reload the function from the caller frame due to register pressure
-  // within this stub. This is the slow path, hence reloading is preferable.
-  if (skip_stub_frame()) {
-    // For Ignition we need to skip the handler/stub frame to reach the
-    // JavaScript frame for the function.
-    __ mov(edx, Operand(ebp, StandardFrameConstants::kCallerFPOffset));
-    __ Push(Operand(edx, StandardFrameConstants::kFunctionOffset));
-  } else {
-    __ Push(Operand(ebp, StandardFrameConstants::kFunctionOffset));
-  }
-  __ PushReturnAddressFrom(ecx);
-  __ TailCallRuntime(Runtime::kNewStrictArguments);
-}
-
-
 // Generates an Operand for saving parameters after PrepareCallApiFunction.
 static Operand ApiParameterOperand(int index) {
   return Operand(esp, index * kPointerSize);
 }
 
 
 // Prepares stack to put arguments (aligns and so on). Reserves
 // space for return value if needed (assumes the return value is a handle).
 // Arguments must be stored in ApiParameterOperand(0), ApiParameterOperand(1)
 // etc. Saves context (esi). If space was reserved for return value then
@@ skipping 364 matching lines @@
                            kStackUnwindSpace, nullptr, return_value_operand,
                            NULL);
 }
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32