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 };
26 
27 /// A MachineSchedStrategy implementation for PowerPC post RA scheduling.
28 class PPCPostRASchedStrategy : public PostGenericScheduler {
29 public:
30   PPCPostRASchedStrategy(const MachineSchedContext *C) :
31     PostGenericScheduler(C) {}
32 
33 protected:
34   void initialize(ScheduleDAGMI *Dag) override;
35   SUnit *pickNode(bool &IsTopNode) override;
36   void enterMBB(MachineBasicBlock *MBB) override;
37   void leaveMBB() override;
38 };
39 
40 } // end namespace llvm
41 
42 #endif // LLVM_LIB_TARGET_POWERPC_POWERPCMACHINESCHEDULER_H
43