__ Allocate(t5, v0, a3, t0, &runtime, TAG_OBJECT);
// v0 = address of new object(s) (tagged)
- // a2 = argument count (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_BOILERPLATE_INDEX);
+ Context::SlotOffset(Context::SLOPPY_ARGUMENTS_MAP_INDEX);
const int kAliasedOffset =
- Context::SlotOffset(Context::ALIASED_ARGUMENTS_BOILERPLATE_INDEX);
+ Context::SlotOffset(Context::ALIASED_ARGUMENTS_MAP_INDEX);
__ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
__ lw(t0, FieldMemOperand(t0, GlobalObject::kNativeContextOffset));
// v0 = address of new object (tagged)
// a1 = mapped parameter count (tagged)
- // a2 = argument count (tagged)
- // t0 = address of boilerplate object (tagged)
- // Copy the JS object part.
- for (int i = 0; i < JSObject::kHeaderSize; i += kPointerSize) {
- __ lw(a3, FieldMemOperand(t0, i));
- __ sw(a3, FieldMemOperand(v0, i));
- }
+ // a2 = argument count (smi-tagged)
+ // t0 = address of arguments map (tagged)
+ __ sw(t0, FieldMemOperand(v0, JSObject::kMapOffset));
+ __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex);
+ __ sw(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset));
+ __ sw(a3, FieldMemOperand(v0, JSObject::kElementsOffset));
// Set up the callee in-object property.
STATIC_ASSERT(Heap::kArgumentsCalleeIndex == 1);
__ lw(a3, MemOperand(sp, 2 * kPointerSize));
+ __ AssertNotSmi(a3);
const int kCalleeOffset = JSObject::kHeaderSize +
Heap::kArgumentsCalleeIndex * kPointerSize;
__ sw(a3, FieldMemOperand(v0, kCalleeOffset));
// Use the length (smi tagged) and set that as an in-object property too.
+ __ AssertSmi(a2);
STATIC_ASSERT(Heap::kArgumentsLengthIndex == 0);
const int kLengthOffset = JSObject::kHeaderSize +
Heap::kArgumentsLengthIndex * kPointerSize;
// Get the arguments boilerplate from the current native context.
__ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
__ lw(t0, FieldMemOperand(t0, GlobalObject::kNativeContextOffset));
- __ lw(t0, MemOperand(t0, Context::SlotOffset(
- Context::STRICT_ARGUMENTS_BOILERPLATE_INDEX)));
+ __ lw(t0, MemOperand(
+ t0, Context::SlotOffset(Context::STRICT_ARGUMENTS_MAP_INDEX)));
- // Copy the JS object part.
- __ CopyFields(v0, t0, a3.bit(), JSObject::kHeaderSize / kPointerSize);
+ __ sw(t0, FieldMemOperand(v0, JSObject::kMapOffset));
+ __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex);
+ __ sw(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset));
+ __ sw(a3, FieldMemOperand(v0, JSObject::kElementsOffset));
// Get the length (smi tagged) and set that as an in-object property too.
STATIC_ASSERT(Heap::kArgumentsLengthIndex == 0);
__ lw(a1, MemOperand(sp, 0 * kPointerSize));
+ __ AssertSmi(a1);
__ sw(a1, FieldMemOperand(v0, JSObject::kHeaderSize +
Heap::kArgumentsLengthIndex * kPointerSize));