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Diffstat (limited to 'lib/Target/PowerPC/PPCMachineScheduler.h')
-rw-r--r-- | lib/Target/PowerPC/PPCMachineScheduler.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/PPCMachineScheduler.h b/lib/Target/PowerPC/PPCMachineScheduler.h new file mode 100644 index 000000000000..93532d9545a6 --- /dev/null +++ b/lib/Target/PowerPC/PPCMachineScheduler.h @@ -0,0 +1,49 @@ +//===- PPCMachineScheduler.h - Custom PowerPC MI scheduler --*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// Custom PowerPC MI scheduler. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_TARGET_POWERPC_POWERPCMACHINESCHEDULER_H +#define LLVM_LIB_TARGET_POWERPC_POWERPCMACHINESCHEDULER_H + +#include "llvm/CodeGen/MachineScheduler.h" + +namespace llvm { + +/// A MachineSchedStrategy implementation for PowerPC pre RA scheduling. +class PPCPreRASchedStrategy : public GenericScheduler { +public: + PPCPreRASchedStrategy(const MachineSchedContext *C) : + GenericScheduler(C) {} +protected: + void tryCandidate(SchedCandidate &Cand, SchedCandidate &TryCand, + SchedBoundary *Zone) const override; +private: + bool biasAddiLoadCandidate(SchedCandidate &Cand, + SchedCandidate &TryCand, + SchedBoundary &Zone) const; +}; + +/// A MachineSchedStrategy implementation for PowerPC post RA scheduling. +class PPCPostRASchedStrategy : public PostGenericScheduler { +public: + PPCPostRASchedStrategy(const MachineSchedContext *C) : + PostGenericScheduler(C) {} + +protected: + void initialize(ScheduleDAGMI *Dag) override; + SUnit *pickNode(bool &IsTopNode) override; + void enterMBB(MachineBasicBlock *MBB) override; + void leaveMBB() override; +}; + +} // end namespace llvm + +#endif // LLVM_LIB_TARGET_POWERPC_POWERPCMACHINESCHEDULER_H |