| 1 | //===- PPCMachineScheduler.h - Custom PowerPC MI scheduler --*- 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 | // |
| 9 | // Custom PowerPC MI scheduler. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #ifndef LLVM_LIB_TARGET_POWERPC_POWERPCMACHINESCHEDULER_H |
| 14 | #define LLVM_LIB_TARGET_POWERPC_POWERPCMACHINESCHEDULER_H |
| 15 | |
| 16 | #include "llvm/CodeGen/MachineScheduler.h" |
| 17 | |
| 18 | namespace llvm { |
| 19 | |
| 20 | /// A MachineSchedStrategy implementation for PowerPC pre RA scheduling. |
| 21 | class PPCPreRASchedStrategy : public GenericScheduler { |
| 22 | public: |
| 23 | PPCPreRASchedStrategy(const MachineSchedContext *C) : |
| 24 | GenericScheduler(C) {} |
| 25 | protected: |
| 26 | bool tryCandidate(SchedCandidate &Cand, SchedCandidate &TryCand, |
| 27 | SchedBoundary *Zone) const override; |
| 28 | |
| 29 | private: |
| 30 | bool biasAddiLoadCandidate(SchedCandidate &Cand, |
| 31 | SchedCandidate &TryCand, |
| 32 | SchedBoundary &Zone) const; |
| 33 | }; |
| 34 | |
| 35 | /// A MachineSchedStrategy implementation for PowerPC post RA scheduling. |
| 36 | class PPCPostRASchedStrategy : public PostGenericScheduler { |
| 37 | public: |
| 38 | PPCPostRASchedStrategy(const MachineSchedContext *C) : |
| 39 | PostGenericScheduler(C) {} |
| 40 | |
| 41 | protected: |
| 42 | void initialize(ScheduleDAGMI *Dag) override; |
| 43 | SUnit *pickNode(bool &IsTopNode) override; |
| 44 | void enterMBB(MachineBasicBlock *MBB) override; |
| 45 | void leaveMBB() override; |
| 46 | |
| 47 | bool tryCandidate(SchedCandidate &Cand, SchedCandidate &TryCand) override; |
| 48 | bool biasAddiCandidate(SchedCandidate &Cand, SchedCandidate &TryCand) const; |
| 49 | }; |
| 50 | |
| 51 | } // end namespace llvm |
| 52 | |
| 53 | #endif // LLVM_LIB_TARGET_POWERPC_POWERPCMACHINESCHEDULER_H |
| 54 |