| 1 | //===--------------------- InstructionTables.h ------------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | /// \file |
| 9 | /// |
| 10 | /// This file implements a custom stage to generate instruction tables. |
| 11 | /// See the description of command-line flag -instruction-tables in |
| 12 | /// docs/CommandGuide/lvm-mca.rst |
| 13 | /// |
| 14 | //===----------------------------------------------------------------------===// |
| 15 | |
| 16 | #ifndef LLVM_MCA_STAGES_INSTRUCTIONTABLES_H |
| 17 | #define LLVM_MCA_STAGES_INSTRUCTIONTABLES_H |
| 18 | |
| 19 | #include "llvm/ADT/SmallVector.h" |
| 20 | #include "llvm/MC/MCSchedule.h" |
| 21 | #include "llvm/MCA/HardwareUnits/Scheduler.h" |
| 22 | #include "llvm/MCA/Stages/Stage.h" |
| 23 | #include "llvm/MCA/Support.h" |
| 24 | |
| 25 | namespace llvm { |
| 26 | namespace mca { |
| 27 | |
| 28 | class InstructionTables final : public Stage { |
| 29 | const MCSchedModel &SM; |
| 30 | SmallVector<ResourceUse, 4> UsedResources; |
| 31 | SmallVector<uint64_t, 8> Masks; |
| 32 | |
| 33 | public: |
| 34 | InstructionTables(const MCSchedModel &Model) |
| 35 | : SM(Model), Masks(Model.getNumProcResourceKinds()) { |
| 36 | computeProcResourceMasks(SM: Model, Masks); |
| 37 | } |
| 38 | |
| 39 | bool hasWorkToComplete() const override { return false; } |
| 40 | Error execute(InstRef &IR) override; |
| 41 | }; |
| 42 | } // namespace mca |
| 43 | } // namespace llvm |
| 44 | |
| 45 | #endif // LLVM_MCA_STAGES_INSTRUCTIONTABLES_H |
| 46 |