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// Copyright 2018 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.
#ifndef V8_OBJECTS_FEEDBACK_CELL_INL_H_
#define V8_OBJECTS_FEEDBACK_CELL_INL_H_
#include "src/objects/feedback-cell.h"
#include "src/heap/heap-write-barrier-inl.h"
#include "src/objects/objects-inl.h"
#include "src/objects/struct-inl.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
#include "torque-generated/src/objects/feedback-cell-tq-inl.inc"
TQ_OBJECT_CONSTRUCTORS_IMPL(FeedbackCell)
void FeedbackCell::clear_padding() {
if (FeedbackCell::kAlignedSize == FeedbackCell::kUnalignedSize) return;
DCHECK_GE(FeedbackCell::kAlignedSize, FeedbackCell::kUnalignedSize);
memset(reinterpret_cast<byte*>(address() + FeedbackCell::kUnalignedSize), 0,
FeedbackCell::kAlignedSize - FeedbackCell::kUnalignedSize);
}
void FeedbackCell::reset_feedback_vector(
base::Optional<std::function<void(HeapObject object, ObjectSlot slot,
HeapObject target)>>
gc_notify_updated_slot) {
SetInitialInterruptBudget();
if (value().IsUndefined() || value().IsClosureFeedbackCellArray()) return;
CHECK(value().IsFeedbackVector());
ClosureFeedbackCellArray closure_feedback_cell_array =
FeedbackVector::cast(value()).closure_feedback_cell_array();
set_value(closure_feedback_cell_array);
if (gc_notify_updated_slot) {
(*gc_notify_updated_slot)(*this, RawField(FeedbackCell::kValueOffset),
closure_feedback_cell_array);
}
}
void FeedbackCell::SetInitialInterruptBudget() {
if (FLAG_lazy_feedback_allocation) {
set_interrupt_budget(FLAG_budget_for_feedback_vector_allocation);
} else {
set_interrupt_budget(FLAG_interrupt_budget);
}
}
void FeedbackCell::SetInterruptBudget() {
set_interrupt_budget(FLAG_interrupt_budget);
}
void FeedbackCell::IncrementClosureCount(Isolate* isolate) {
ReadOnlyRoots r(isolate);
if (map() == r.no_closures_cell_map()) {
set_map(r.one_closure_cell_map());
} else if (map() == r.one_closure_cell_map()) {
set_map(r.many_closures_cell_map());
} else {
DCHECK(map() == r.many_closures_cell_map());
}
}
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_FEEDBACK_CELL_INL_H_
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