1 //===-- AMDGPUCodeEmitter.h - AMDGPU Code Emitter interface -----*- 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 /// \file
11 /// \brief CodeEmitter interface for R600 and SI codegen.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUMCCODEEMITTER_H
16 #define LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUMCCODEEMITTER_H
17 
18 #include "llvm/MC/MCCodeEmitter.h"
19 #include "llvm/Support/raw_ostream.h"
20 
21 namespace llvm {
22 
23 class MCInst;
24 class MCInstrInfo;
25 class MCOperand;
26 class MCSubtargetInfo;
27 class FeatureBitset;
28 
29 class AMDGPUMCCodeEmitter : public MCCodeEmitter {
30   virtual void anchor();
31 
32 protected:
33   const MCInstrInfo &MCII;
34 
35   AMDGPUMCCodeEmitter(const MCInstrInfo &mcii) : MCII(mcii) {}
36 
37 public:
38 
39   uint64_t getBinaryCodeForInstr(const MCInst &MI,
40                                  SmallVectorImpl<MCFixup> &Fixups,
41                                  const MCSubtargetInfo &STI) const;
42 
43   virtual uint64_t getMachineOpValue(const MCInst &MI, const MCOperand &MO,
44                                      SmallVectorImpl<MCFixup> &Fixups,
45                                      const MCSubtargetInfo &STI) const {
46     return 0;
47   }
48 
49   virtual unsigned getSOPPBrEncoding(const MCInst &MI, unsigned OpNo,
50                                      SmallVectorImpl<MCFixup> &Fixups,
51                                      const MCSubtargetInfo &STI) const {
52     return 0;
53   }
54 
55 protected:
56   uint64_t computeAvailableFeatures(const FeatureBitset &FB) const;
57   void verifyInstructionPredicates(const MCInst &MI,
58                                    uint64_t AvailableFeatures) const;
59 };
60 
61 } // End namespace llvm
62 
63 #endif
64