| // Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef RUNTIME_VM_PENDING_DEOPTS_H_ |
| #define RUNTIME_VM_PENDING_DEOPTS_H_ |
| |
| #if defined(SHOULD_NOT_INCLUDE_RUNTIME) |
| #error "Should not include runtime" |
| #endif |
| |
| #include "vm/growable_array.h" |
| |
| namespace dart { |
| |
| class PendingLazyDeopt { |
| public: |
| PendingLazyDeopt(uword fp, uword pc) : fp_(fp), pc_(pc) {} |
| uword fp() { return fp_; } |
| uword pc() { return pc_; } |
| void set_pc(uword pc) { pc_ = pc; } |
| |
| private: |
| uword fp_; |
| uword pc_; |
| }; |
| |
| class PendingDeopts { |
| public: |
| enum ClearReason { |
| kClearDueToThrow, |
| kClearDueToDeopt, |
| }; |
| PendingDeopts(); |
| ~PendingDeopts(); |
| |
| bool HasPendingDeopts() { return pending_deopts_->length() > 0; } |
| |
| void AddPendingDeopt(uword fp, uword pc); |
| uword FindPendingDeopt(uword fp); |
| void ClearPendingDeoptsBelow(uword fp, ClearReason reason); |
| void ClearPendingDeoptsAtOrBelow(uword fp, ClearReason reason); |
| uword RemapExceptionPCForDeopt(uword program_counter, |
| uword frame_pointer, |
| bool* clear_deopt); |
| |
| private: |
| PendingLazyDeopt* FindPendingDeoptRecord(uword fp); |
| |
| MallocGrowableArray<PendingLazyDeopt>* pending_deopts_; |
| }; |
| |
| } // namespace dart |
| |
| #endif // RUNTIME_VM_PENDING_DEOPTS_H_ |