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1 //===-- SPUHazardRecognizers.h - Cell SPU Hazard Recognizer -----*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines hazard recognizers for scheduling on the Cell SPU
11 // processor.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef SPUHAZRECS_H
16 #define SPUHAZRECS_H
17 
18 #include "llvm/CodeGen/ScheduleHazardRecognizer.h"
19 
20 namespace llvm {
21 
22 class TargetInstrInfo;
23 
24 /// SPUHazardRecognizer
25 class SPUHazardRecognizer : public ScheduleHazardRecognizer
26 {
27 private:
28   const TargetInstrInfo &TII;
29   int EvenOdd;
30 
31 public:
32   SPUHazardRecognizer(const TargetInstrInfo &TII);
33   virtual HazardType getHazardType(SUnit *SU, int Stalls);
34   virtual void EmitInstruction(SUnit *SU);
35   virtual void AdvanceCycle();
36   virtual void EmitNoop();
37 };
38 
39 } // end namespace llvm
40 
41 #endif
42