| // Copyright 2020 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. |
| |
| namespace ic { |
| |
| // --- The public interface (forwards to the actual implementation). |
| |
| @export |
| macro CollectCallFeedback( |
| maybeTarget: JSAny, context: Context, |
| maybeFeedbackVector: Undefined|FeedbackVector, slotId: uintptr): void { |
| callable::CollectCallFeedback( |
| maybeTarget, context, maybeFeedbackVector, slotId); |
| } |
| |
| @export |
| macro CollectInstanceOfFeedback( |
| maybeTarget: JSAny, context: Context, |
| maybeFeedbackVector: Undefined|FeedbackVector, slotId: uintptr): void { |
| callable::CollectInstanceOfFeedback( |
| maybeTarget, context, maybeFeedbackVector, slotId); |
| } |
| |
| @export |
| macro CollectConstructFeedback(implicit context: Context)( |
| target: JSAny, newTarget: JSAny, |
| maybeFeedbackVector: Undefined|FeedbackVector, |
| slotId: uintptr): never labels ConstructGeneric, |
| ConstructArray(AllocationSite) { |
| callable::CollectConstructFeedback( |
| target, newTarget, maybeFeedbackVector, slotId) |
| otherwise ConstructGeneric, ConstructArray; |
| } |
| |
| // --- Common functionality. |
| |
| extern macro MegamorphicSymbolConstant(): Symbol; |
| extern macro UninitializedSymbolConstant(): Symbol; |
| |
| const kMegamorphicSymbol: Symbol = MegamorphicSymbolConstant(); |
| const kUninitializedSymbol: Symbol = UninitializedSymbolConstant(); |
| |
| macro IsMegamorphic(feedback: MaybeObject): bool { |
| return TaggedEqual(feedback, kMegamorphicSymbol); |
| } |
| |
| macro IsUninitialized(feedback: MaybeObject): bool { |
| return TaggedEqual(feedback, kUninitializedSymbol); |
| } |
| |
| extern macro LoadFeedbackVectorSlot(FeedbackVector, uintptr): MaybeObject; |
| extern operator '[]' macro LoadFeedbackVectorSlot( |
| FeedbackVector, intptr): MaybeObject; |
| extern macro StoreFeedbackVectorSlot( |
| FeedbackVector, uintptr, MaybeObject): void; |
| extern macro StoreWeakReferenceInFeedbackVector( |
| FeedbackVector, uintptr, HeapObject): MaybeObject; |
| extern macro ReportFeedbackUpdate(FeedbackVector, uintptr, constexpr string); |
| extern operator '.length_intptr' macro LoadFeedbackVectorLength(FeedbackVector): |
| intptr; |
| |
| } // namespace ic |
