Move backend specific files to separate directories.

src/builtins-ia32.cc

Index: src/builtins-ia32.cc
diff --git a/src/builtins-ia32.cc b/src/builtins-ia32.cc
deleted file mode 100644
index 9baeb5ec0eb0c3adacec289f78860b05a751678a..0000000000000000000000000000000000000000
--- a/src/builtins-ia32.cc
+++ /dev/null
@@ -1,758 +0,0 @@
-// 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"
-
-namespace v8 { namespace internal {
-
-
-#define __ ACCESS_MASM(masm)
-
-
-void Builtins::Generate_Adaptor(MacroAssembler* masm, CFunctionId id) {
-  // TODO(1238487): Don't pass the function in a static variable.
-  ExternalReference passed = ExternalReference::builtin_passed_function();
-  __ mov(Operand::StaticVariable(passed), edi);
-
-  // The actual argument count has already been loaded into register
-  // eax, but JumpToBuiltin expects eax to contain the number of
-  // arguments including the receiver.
-  __ inc(eax);
-  __ JumpToBuiltin(ExternalReference(id));
-}
-
-
-void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- eax: number of arguments
-  //  -- edi: constructor function
-  // -----------------------------------
-
-  // Enter a construct frame.
-  __ EnterConstructFrame();
-
-  // Store a smi-tagged arguments count on the stack.
-  __ shl(eax, kSmiTagSize);
-  __ push(eax);
-
-  // Push the function to invoke on the stack.
-  __ push(edi);
-
-  // 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.
-  Label rt_call, allocated;
-  if (FLAG_inline_new) {
-    Label undo_allocation;
-#ifdef ENABLE_DEBUGGER_SUPPORT
-    ExternalReference debug_step_in_fp =
-        ExternalReference::debug_step_in_fp_address();
-    __ cmp(Operand::StaticVariable(debug_step_in_fp), Immediate(0));
-    __ j(not_equal, &rt_call);
-#endif
-    // Check that function is not a Smi.
-    __ test(edi, Immediate(kSmiTagMask));
-    __ j(zero, &rt_call);
-    // Check that function is a JSFunction
-    __ CmpObjectType(edi, JS_FUNCTION_TYPE, eax);
-    __ j(not_equal, &rt_call);
-
-    // Verified that the constructor is a JSFunction.
-    // Load the initial map and verify that it is in fact a map.
-    // edi: constructor
-    __ mov(eax, FieldOperand(edi, JSFunction::kPrototypeOrInitialMapOffset));
-    // Will both indicate a NULL and a Smi
-    __ test(eax, Immediate(kSmiTagMask));
-    __ j(zero, &rt_call);
-    // edi: constructor
-    // eax: initial map (if proven valid below)
-    __ CmpObjectType(eax, MAP_TYPE, ebx);
-    __ j(not_equal, &rt_call);
-
-    // 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.
-    // edi: constructor
-    // eax: initial map
-    __ CmpInstanceType(eax, JS_FUNCTION_TYPE);
-    __ j(equal, &rt_call);
-
-    // Now allocate the JSObject on the heap.
-    // edi: constructor
-    // eax: initial map
-    __ movzx_b(edi, FieldOperand(eax, Map::kInstanceSizeOffset));
-    __ shl(edi, kPointerSizeLog2);
-    // Make sure that the maximum heap object size will never cause us
-    // problem here, because it is always greater than the maximum
-    // instance size that can be represented in a byte.
-    ASSERT(Heap::MaxHeapObjectSize() >= (1 << kBitsPerByte));
-    ExternalReference new_space_allocation_top =
-        ExternalReference::new_space_allocation_top_address();
-    __ mov(ebx, Operand::StaticVariable(new_space_allocation_top));
-    __ add(edi, Operand(ebx));  // Calculate new top
-    ExternalReference new_space_allocation_limit =
-        ExternalReference::new_space_allocation_limit_address();
-    __ cmp(edi, Operand::StaticVariable(new_space_allocation_limit));
-    __ j(greater_equal, &rt_call);
-    // Allocated the JSObject, now initialize the fields.
-    // eax: initial map
-    // ebx: JSObject
-    // edi: start of next object
-    __ mov(Operand(ebx, JSObject::kMapOffset), eax);
-    __ mov(ecx, Factory::empty_fixed_array());
-    __ mov(Operand(ebx, JSObject::kPropertiesOffset), ecx);
-    __ mov(Operand(ebx, JSObject::kElementsOffset), ecx);
-    // Set extra fields in the newly allocated object.
-    // eax: initial map
-    // ebx: JSObject
-    // edi: start of next object
-    { Label loop, entry;
-      __ mov(edx, Factory::undefined_value());
-      __ lea(ecx, Operand(ebx, JSObject::kHeaderSize));
-      __ jmp(&entry);
-      __ bind(&loop);
-      __ mov(Operand(ecx, 0), edx);
-      __ add(Operand(ecx), Immediate(kPointerSize));
-      __ bind(&entry);
-      __ cmp(ecx, Operand(edi));
-      __ j(less, &loop);
-    }
-
-    // Mostly done with the JSObject. Add the heap tag and store the new top, so
-    // that we can continue and jump into the continuation code at any time from
-    // now on. Any failures need to undo the setting of the new top, so that the
-    // heap is in a consistent state and verifiable.
-    // eax: initial map
-    // ebx: JSObject
-    // edi: start of next object
-    __ or_(Operand(ebx), Immediate(kHeapObjectTag));
-    __ mov(Operand::StaticVariable(new_space_allocation_top), edi);
-
-    // Check if a properties array should be setup and allocate one if needed.
-    // Otherwise initialize the properties to the empty_fixed_array as well.
-    // eax: initial map
-    // ebx: JSObject
-    // edi: start of next object
-    __ movzx_b(edx, FieldOperand(eax, Map::kUnusedPropertyFieldsOffset));
-    __ movzx_b(ecx, FieldOperand(eax, Map::kInObjectPropertiesOffset));
-    // Calculate unused properties past the end of the in-object properties.
-    __ sub(edx, Operand(ecx));
-    __ test(edx, Operand(edx));
-    // Done if no extra properties are to be allocated.
-    __ j(zero, &allocated);
-
-    // Scale the number of elements by pointer size and add the header for
-    // FixedArrays to the start of the next object calculation from above.
-    // eax: initial map
-    // ebx: JSObject
-    // edi: start of next object (will be start of FixedArray)
-    // edx: number of elements in properties array
-    ASSERT(Heap::MaxHeapObjectSize() >
-           (FixedArray::kHeaderSize + 255*kPointerSize));
-    __ lea(ecx, Operand(edi, edx, times_4, FixedArray::kHeaderSize));
-    __ cmp(ecx, Operand::StaticVariable(new_space_allocation_limit));
-    __ j(greater_equal, &undo_allocation);
-    __ mov(Operand::StaticVariable(new_space_allocation_top), ecx);
-
-    // Initialize the FixedArray.
-    // ebx: JSObject
-    // edi: FixedArray
-    // edx: number of elements
-    // ecx: start of next object
-    __ mov(eax, Factory::fixed_array_map());
-    __ mov(Operand(edi, JSObject::kMapOffset), eax);  // setup the map
-    __ mov(Operand(edi, Array::kLengthOffset), edx);  // and length
-
-    // Initialize the fields to undefined.
-    // ebx: JSObject
-    // edi: FixedArray
-    // ecx: start of next object
-    { Label loop, entry;
-      __ mov(edx, Factory::undefined_value());
-      __ lea(eax, Operand(edi, FixedArray::kHeaderSize));
-      __ jmp(&entry);
-      __ bind(&loop);
-      __ mov(Operand(eax, 0), edx);
-      __ add(Operand(eax), Immediate(kPointerSize));
-      __ bind(&entry);
-      __ cmp(eax, Operand(ecx));
-      __ j(less, &loop);
-    }
-
-    // Store the initialized FixedArray into the properties field of
-    // the JSObject
-    // ebx: JSObject
-    // edi: FixedArray
-    __ or_(Operand(edi), Immediate(kHeapObjectTag));  // add the heap tag
-    __ mov(FieldOperand(ebx, JSObject::kPropertiesOffset), edi);
-
-
-    // Continue with JSObject being successfully allocated
-    // ebx: JSObject
-    __ jmp(&allocated);
-
-    // 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.
-    // ebx: JSObject (previous new top)
-    __ bind(&undo_allocation);
-    __ xor_(Operand(ebx), Immediate(kHeapObjectTag));  // clear the heap tag
-    __ mov(Operand::StaticVariable(new_space_allocation_top), ebx);
-  }
-
-  // Allocate the new receiver object using the runtime call.
-  // edi: function (constructor)
-  __ bind(&rt_call);
-  // Must restore edi (constructor) before calling runtime.
-  __ mov(edi, Operand(esp, 0));
-  __ push(edi);
-  __ CallRuntime(Runtime::kNewObject, 1);
-  __ mov(ebx, Operand(eax));  // store result in ebx
-
-  // New object allocated.
-  // ebx: newly allocated object
-  __ bind(&allocated);
-  // Retrieve the function from the stack.
-  __ pop(edi);
-
-  // Retrieve smi-tagged arguments count from the stack.
-  __ mov(eax, Operand(esp, 0));
-  __ shr(eax, kSmiTagSize);
-
-  // Push the allocated receiver to the stack. We need two copies
-  // because we may have to return the original one and the calling
-  // conventions dictate that the called function pops the receiver.
-  __ push(ebx);
-  __ push(ebx);
-
-  // Setup pointer to last argument.
-  __ lea(ebx, Operand(ebp, StandardFrameConstants::kCallerSPOffset));
-
-  // Copy arguments and receiver to the expression stack.
-  Label loop, entry;
-  __ mov(ecx, Operand(eax));
-  __ jmp(&entry);
-  __ bind(&loop);
-  __ push(Operand(ebx, ecx, times_4, 0));
-  __ bind(&entry);
-  __ dec(ecx);
-  __ j(greater_equal, &loop);
-
-  // Call the function.
-  ParameterCount actual(eax);
-  __ InvokeFunction(edi, actual, CALL_FUNCTION);
-
-  // Restore context from the frame.
-  __ mov(esi, Operand(ebp, 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.
-  __ test(eax, Immediate(kSmiTagMask));
-  __ j(zero, &use_receiver, not_taken);
-
-  // 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.
-  __ mov(ecx, FieldOperand(eax, HeapObject::kMapOffset));
-  __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
-  __ cmp(ecx, FIRST_JS_OBJECT_TYPE);
-  __ j(greater_equal, &exit, not_taken);
-
-  // Throw away the result of the constructor invocation and use the
-  // on-stack receiver as the result.
-  __ bind(&use_receiver);
-  __ mov(eax, Operand(esp, 0));
-
-  // Restore the arguments count and leave the construct frame.
-  __ bind(&exit);
-  __ mov(ebx, Operand(esp, kPointerSize));  // get arguments count
-  __ LeaveConstructFrame();
-
-  // Remove caller arguments from the stack and return.
-  ASSERT(kSmiTagSize == 1 && kSmiTag == 0);
-  __ pop(ecx);
-  __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize));  // 1 ~ receiver
-  __ push(ecx);
-  __ ret(0);
-}
-
-
-static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm,
-                                             bool is_construct) {
-  // Clear the context before we push it when entering the JS frame.
-  __ xor_(esi, Operand(esi));  // clear esi
-
-  // Enter an internal frame.
-  __ EnterInternalFrame();
-
-  // Load the previous frame pointer (ebx) to access C arguments
-  __ mov(ebx, Operand(ebp, 0));
-
-  // Get the function from the frame and setup the context.
-  __ mov(ecx, Operand(ebx, EntryFrameConstants::kFunctionArgOffset));
-  __ mov(esi, FieldOperand(ecx, JSFunction::kContextOffset));
-
-  // Push the function and the receiver onto the stack.
-  __ push(ecx);
-  __ push(Operand(ebx, EntryFrameConstants::kReceiverArgOffset));
-
-  // Load the number of arguments and setup pointer to the arguments.
-  __ mov(eax, Operand(ebx, EntryFrameConstants::kArgcOffset));
-  __ mov(ebx, Operand(ebx, EntryFrameConstants::kArgvOffset));
-
-  // Copy arguments to the stack in a loop.
-  Label loop, entry;
-  __ xor_(ecx, Operand(ecx));  // clear ecx
-  __ jmp(&entry);
-  __ bind(&loop);
-  __ mov(edx, Operand(ebx, ecx, times_4, 0));  // push parameter from argv
-  __ push(Operand(edx, 0));  // dereference handle
-  __ inc(Operand(ecx));
-  __ bind(&entry);
-  __ cmp(ecx, Operand(eax));
-  __ j(not_equal, &loop);
-
-  // Get the function from the stack and call it.
-  __ mov(edi, Operand(esp, eax, times_4, +1 * kPointerSize));  // +1 ~ receiver
-
-  // Invoke the code.
-  if (is_construct) {
-    __ call(Handle<Code>(Builtins::builtin(Builtins::JSConstructCall)),
-            RelocInfo::CODE_TARGET);
-  } else {
-    ParameterCount actual(eax);
-    __ InvokeFunction(edi, actual, CALL_FUNCTION);
-  }
-
-  // Exit the JS frame. Notice that this also removes the empty
-  // context and the function left on the stack by the code
-  // invocation.
-  __ LeaveInternalFrame();
-  __ ret(1 * kPointerSize);  // remove receiver
-}
-
-
-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) {
-  // 1. Make sure we have at least one argument.
-  { Label done;
-    __ test(eax, Operand(eax));
-    __ j(not_zero, &done, taken);
-    __ pop(ebx);
-    __ push(Immediate(Factory::undefined_value()));
-    __ push(ebx);
-    __ inc(eax);
-    __ bind(&done);
-  }
-
-  // 2. Get the function to call from the stack.
-  { Label done, non_function, function;
-    // +1 ~ return address.
-    __ mov(edi, Operand(esp, eax, times_4, +1 * kPointerSize));
-    __ test(edi, Immediate(kSmiTagMask));
-    __ j(zero, &non_function, not_taken);
-    __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);
-    __ j(equal, &function, taken);
-
-    // Non-function called: Clear the function to force exception.
-    __ bind(&non_function);
-    __ xor_(edi, Operand(edi));
-    __ jmp(&done);
-
-    // Function called: Change context eagerly to get the right global object.
-    __ bind(&function);
-    __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
-
-    __ bind(&done);
-  }
-
-  // 3. Make sure first argument is an object; convert if necessary.
-  { Label call_to_object, use_global_receiver, patch_receiver, done;
-    __ mov(ebx, Operand(esp, eax, times_4, 0));
-
-    __ test(ebx, Immediate(kSmiTagMask));
-    __ j(zero, &call_to_object);
-
-    __ cmp(ebx, Factory::null_value());
-    __ j(equal, &use_global_receiver);
-    __ cmp(ebx, Factory::undefined_value());
-    __ j(equal, &use_global_receiver);
-
-    __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset));
-    __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
-    __ cmp(ecx, FIRST_JS_OBJECT_TYPE);
-    __ j(less, &call_to_object);
-    __ cmp(ecx, LAST_JS_OBJECT_TYPE);
-    __ j(less_equal, &done);
-
-    __ bind(&call_to_object);
-    __ EnterInternalFrame();  // preserves eax, ebx, edi
-
-    // Store the arguments count on the stack (smi tagged).
-    ASSERT(kSmiTag == 0);
-    __ shl(eax, kSmiTagSize);
-    __ push(eax);
-
-    __ push(edi);  // save edi across the call
-    __ push(ebx);
-    __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
-    __ mov(ebx, eax);
-    __ pop(edi);  // restore edi after the call
-
-    // Get the arguments count and untag it.
-    __ pop(eax);
-    __ shr(eax, kSmiTagSize);
-
-    __ LeaveInternalFrame();
-    __ jmp(&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;
-    __ mov(ebx, FieldOperand(esi, kGlobalIndex));
-    __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset));
-
-    __ bind(&patch_receiver);
-    __ mov(Operand(esp, eax, times_4, 0), ebx);
-
-    __ bind(&done);
-  }
-
-  // 4. Shift stuff one slot down the stack.
-  { Label loop;
-    __ lea(ecx, Operand(eax, +1));  // +1 ~ copy receiver too
-    __ bind(&loop);
-    __ mov(ebx, Operand(esp, ecx, times_4, 0));
-    __ mov(Operand(esp, ecx, times_4, kPointerSize), ebx);
-    __ dec(ecx);
-    __ j(not_zero, &loop);
-  }
-
-  // 5. Remove TOS (copy of last arguments), but keep return address.
-  __ pop(ebx);
-  __ pop(ecx);
-  __ push(ebx);
-  __ dec(eax);
-
-  // 6. Check that function really was a function and get the code to
-  //    call from the function and check that the number of expected
-  //    arguments matches what we're providing.
-  { Label invoke;
-    __ test(edi, Operand(edi));
-    __ j(not_zero, &invoke, taken);
-    __ xor_(ebx, Operand(ebx));
-    __ GetBuiltinEntry(edx, Builtins::CALL_NON_FUNCTION);
-    __ jmp(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),
-           RelocInfo::CODE_TARGET);
-
-    __ bind(&invoke);
-    __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset));
-    __ mov(ebx,
-           FieldOperand(edx, SharedFunctionInfo::kFormalParameterCountOffset));
-    __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset));
-    __ lea(edx, FieldOperand(edx, Code::kHeaderSize));
-    __ cmp(eax, Operand(ebx));
-    __ j(not_equal, Handle<Code>(builtin(ArgumentsAdaptorTrampoline)));
-  }
-
-  // 7. Jump (tail-call) to the code in register edx without checking arguments.
-  ParameterCount expected(0);
-  __ InvokeCode(Operand(edx), expected, expected, JUMP_FUNCTION);
-}
-
-
-void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
-  __ EnterInternalFrame();
-
-  __ push(Operand(ebp, 4 * kPointerSize));  // push this
-  __ push(Operand(ebp, 2 * kPointerSize));  // push arguments
-  __ InvokeBuiltin(Builtins::APPLY_PREPARE, CALL_FUNCTION);
-
-  if (FLAG_check_stack) {
-    // We need to catch preemptions right here, otherwise an unlucky preemption
-    // could show up as a failed apply.
-    ExternalReference stack_guard_limit =
-        ExternalReference::address_of_stack_guard_limit();
-    Label retry_preemption;
-    Label no_preemption;
-    __ bind(&retry_preemption);
-    __ mov(edi, Operand::StaticVariable(stack_guard_limit));
-    __ cmp(esp, Operand(edi));
-    __ j(above, &no_preemption, taken);
-
-    // Preemption!
-    // Because builtins always remove the receiver from the stack, we
-    // have to fake one to avoid underflowing the stack.
-    __ push(eax);
-    __ push(Immediate(Smi::FromInt(0)));
-
-    // Do call to runtime routine.
-    __ CallRuntime(Runtime::kStackGuard, 1);
-    __ pop(eax);
-    __ jmp(&retry_preemption);
-
-    __ bind(&no_preemption);
-
-    Label okay;
-    // Make ecx the space we have left.
-    __ mov(ecx, Operand(esp));
-    __ sub(ecx, Operand(edi));
-    // Make edx the space we need for the array when it is unrolled onto the
-    // stack.
-    __ mov(edx, Operand(eax));
-    __ shl(edx, kPointerSizeLog2 - kSmiTagSize);
-    __ cmp(ecx, Operand(edx));
-    __ j(greater, &okay, taken);
-
-    // Too bad: Out of stack space.
-    __ push(Operand(ebp, 4 * kPointerSize));  // push this
-    __ push(eax);
-    __ InvokeBuiltin(Builtins::APPLY_OVERFLOW, CALL_FUNCTION);
-    __ bind(&okay);
-  }
-
-  // Push current index and limit.
-  const int kLimitOffset =
-      StandardFrameConstants::kExpressionsOffset - 1 * kPointerSize;
-  const int kIndexOffset = kLimitOffset - 1 * kPointerSize;
-  __ push(eax);  // limit
-  __ push(Immediate(0));  // index
-
-  // Change context eagerly to get the right global object if
-  // necessary.
-  __ mov(edi, Operand(ebp, 4 * kPointerSize));
-  __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset));
-
-  // Compute the receiver.
-  Label call_to_object, use_global_receiver, push_receiver;
-  __ mov(ebx, Operand(ebp, 3 * kPointerSize));
-  __ test(ebx, Immediate(kSmiTagMask));
-  __ j(zero, &call_to_object);
-  __ cmp(ebx, Factory::null_value());
-  __ j(equal, &use_global_receiver);
-  __ cmp(ebx, Factory::undefined_value());
-  __ j(equal, &use_global_receiver);
-
-  // If given receiver is already a JavaScript object then there's no
-  // reason for converting it.
-  __ mov(ecx, FieldOperand(ebx, HeapObject::kMapOffset));
-  __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset));
-  __ cmp(ecx, FIRST_JS_OBJECT_TYPE);
-  __ j(less, &call_to_object);
-  __ cmp(ecx, LAST_JS_OBJECT_TYPE);
-  __ j(less_equal, &push_receiver);
-
-  // Convert the receiver to an object.
-  __ bind(&call_to_object);
-  __ push(ebx);
-  __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_FUNCTION);
-  __ mov(ebx, Operand(eax));
-  __ jmp(&push_receiver);
-
-  // Use the current global receiver object as the receiver.
-  __ bind(&use_global_receiver);
-  const int kGlobalOffset =
-      Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize;
-  __ mov(ebx, FieldOperand(esi, kGlobalOffset));
-  __ mov(ebx, FieldOperand(ebx, GlobalObject::kGlobalReceiverOffset));
-
-  // Push the receiver.
-  __ bind(&push_receiver);
-  __ push(ebx);
-
-  // Copy all arguments from the array to the stack.
-  Label entry, loop;
-  __ mov(eax, Operand(ebp, kIndexOffset));
-  __ jmp(&entry);
-  __ bind(&loop);
-  __ mov(ecx, Operand(ebp, 2 * kPointerSize));  // load arguments
-  __ push(ecx);
-  __ push(eax);
-
-  // Use inline caching to speed up access to arguments.
-  Handle<Code> ic(Builtins::builtin(Builtins::KeyedLoadIC_Initialize));
-  __ call(ic, RelocInfo::CODE_TARGET);
-  // It is important that we do not have a test instruction after the
-  // call.  A test instruction after the call is used to indicate that
-  // we have generated an inline version of the keyed load.  In this
-  // case, we know that we are not generating a test instruction next.
-
-  // Remove IC arguments from the stack and push the nth argument.
-  __ add(Operand(esp), Immediate(2 * kPointerSize));
-  __ push(eax);
-
-  // Update the index on the stack and in register eax.
-  __ mov(eax, Operand(ebp, kIndexOffset));
-  __ add(Operand(eax), Immediate(1 << kSmiTagSize));
-  __ mov(Operand(ebp, kIndexOffset), eax);
-
-  __ bind(&entry);
-  __ cmp(eax, Operand(ebp, kLimitOffset));
-  __ j(not_equal, &loop);
-
-  // Invoke the function.
-  ParameterCount actual(eax);
-  __ shr(eax, kSmiTagSize);
-  __ mov(edi, Operand(ebp, 4 * kPointerSize));
-  __ InvokeFunction(edi, actual, CALL_FUNCTION);
-
-  __ LeaveInternalFrame();
-  __ ret(3 * kPointerSize);  // remove this, receiver, and arguments
-}
-
-
-static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) {
-  __ push(ebp);
-  __ mov(ebp, Operand(esp));
-
-  // Store the arguments adaptor context sentinel.
-  __ push(Immediate(ArgumentsAdaptorFrame::SENTINEL));
-
-  // Push the function on the stack.
-  __ push(edi);
-
-  // Preserve the number of arguments on the stack. Must preserve both
-  // eax and ebx because these registers are used when copying the
-  // arguments and the receiver.
-  ASSERT(kSmiTagSize == 1);
-  __ lea(ecx, Operand(eax, eax, times_1, kSmiTag));
-  __ push(ecx);
-}
-
-
-static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) {
-  // Retrieve the number of arguments from the stack.
-  __ mov(ebx, Operand(ebp, ArgumentsAdaptorFrameConstants::kLengthOffset));
-
-  // Leave the frame.
-  __ leave();
-
-  // Remove caller arguments from the stack.
-  ASSERT(kSmiTagSize == 1 && kSmiTag == 0);
-  __ pop(ecx);
-  __ lea(esp, Operand(esp, ebx, times_2, 1 * kPointerSize));  // 1 ~ receiver
-  __ push(ecx);
-}
-
-
-void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
-  // ----------- S t a t e -------------
-  //  -- eax : actual number of arguments
-  //  -- ebx : expected number of arguments
-  //  -- edx : code entry to call
-  // -----------------------------------
-
-  Label invoke, dont_adapt_arguments;
-  __ IncrementCounter(&Counters::arguments_adaptors, 1);
-
-  Label enough, too_few;
-  __ cmp(eax, Operand(ebx));
-  __ j(less, &too_few);
-  __ cmp(ebx, SharedFunctionInfo::kDontAdaptArgumentsSentinel);
-  __ j(equal, &dont_adapt_arguments);
-
-  {  // Enough parameters: Actual >= expected.
-    __ bind(&enough);
-    EnterArgumentsAdaptorFrame(masm);
-
-    // Copy receiver and all expected arguments.
-    const int offset = StandardFrameConstants::kCallerSPOffset;
-    __ lea(eax, Operand(ebp, eax, times_4, offset));
-    __ mov(ecx, -1);  // account for receiver
-
-    Label copy;
-    __ bind(&copy);
-    __ inc(ecx);
-    __ push(Operand(eax, 0));
-    __ sub(Operand(eax), Immediate(kPointerSize));
-    __ cmp(ecx, Operand(ebx));
-    __ j(less, &copy);
-    __ jmp(&invoke);
-  }
-
-  {  // Too few parameters: Actual < expected.
-    __ bind(&too_few);
-    EnterArgumentsAdaptorFrame(masm);
-
-    // Copy receiver and all actual arguments.
-    const int offset = StandardFrameConstants::kCallerSPOffset;
-    __ lea(edi, Operand(ebp, eax, times_4, offset));
-    __ mov(ecx, -1);  // account for receiver
-
-    Label copy;
-    __ bind(&copy);
-    __ inc(ecx);
-    __ push(Operand(edi, 0));
-    __ sub(Operand(edi), Immediate(kPointerSize));
-    __ cmp(ecx, Operand(eax));
-    __ j(less, &copy);
-
-    // Fill remaining expected arguments with undefined values.
-    Label fill;
-    __ bind(&fill);
-    __ inc(ecx);
-    __ push(Immediate(Factory::undefined_value()));
-    __ cmp(ecx, Operand(ebx));
-    __ j(less, &fill);
-
-    // Restore function pointer.
-    __ mov(edi, Operand(ebp, JavaScriptFrameConstants::kFunctionOffset));
-  }
-
-  // Call the entry point.
-  __ bind(&invoke);
-  __ call(Operand(edx));
-
-  // Leave frame and return.
-  LeaveArgumentsAdaptorFrame(masm);
-  __ ret(0);
-
-  // -------------------------------------------
-  // Dont adapt arguments.
-  // -------------------------------------------
-  __ bind(&dont_adapt_arguments);
-  __ jmp(Operand(edx));
-}
-
-
-#undef __
-
-} }  // namespace v8::internal