1 //=- SystemZTargetStreamer.h - SystemZ Target Streamer ----------*- 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 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETSTREAMER_H 10 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETSTREAMER_H 11 12 #include "llvm/ADT/StringRef.h" 13 #include "llvm/MC/MCContext.h" 14 #include "llvm/MC/MCExpr.h" 15 #include "llvm/MC/MCInst.h" 16 #include "llvm/MC/MCStreamer.h" 17 #include "llvm/MC/MCSymbol.h" 18 #include "llvm/Support/FormattedStream.h" 19 #include <map> 20 #include <utility> 21 22 namespace llvm { 23 class SystemZHLASMAsmStreamer; 24 25 class SystemZTargetStreamer : public MCTargetStreamer { 26 public: SystemZTargetStreamer(MCStreamer & S)27 SystemZTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {} 28 29 typedef std::pair<MCInst, const MCSubtargetInfo *> MCInstSTIPair; 30 struct CmpMCInst { operatorCmpMCInst31 bool operator()(const MCInstSTIPair &MCI_STI_A, 32 const MCInstSTIPair &MCI_STI_B) const { 33 if (MCI_STI_A.second != MCI_STI_B.second) 34 return uintptr_t(MCI_STI_A.second) < uintptr_t(MCI_STI_B.second); 35 const MCInst &A = MCI_STI_A.first; 36 const MCInst &B = MCI_STI_B.first; 37 assert(A.getNumOperands() == B.getNumOperands() && 38 A.getNumOperands() == 5 && A.getOperand(2).getImm() == 1 && 39 B.getOperand(2).getImm() == 1 && "Unexpected EXRL target MCInst"); 40 if (A.getOpcode() != B.getOpcode()) 41 return A.getOpcode() < B.getOpcode(); 42 if (A.getOperand(0).getReg() != B.getOperand(0).getReg()) 43 return A.getOperand(0).getReg() < B.getOperand(0).getReg(); 44 if (A.getOperand(1).getImm() != B.getOperand(1).getImm()) 45 return A.getOperand(1).getImm() < B.getOperand(1).getImm(); 46 if (A.getOperand(3).getReg() != B.getOperand(3).getReg()) 47 return A.getOperand(3).getReg() < B.getOperand(3).getReg(); 48 if (A.getOperand(4).getImm() != B.getOperand(4).getImm()) 49 return A.getOperand(4).getImm() < B.getOperand(4).getImm(); 50 return false; 51 } 52 }; 53 typedef std::map<MCInstSTIPair, MCSymbol *, CmpMCInst> EXRLT2SymMap; 54 EXRLT2SymMap EXRLTargets2Sym; 55 56 void emitConstantPools() override; 57 emitMachine(StringRef CPUOrCommand)58 virtual void emitMachine(StringRef CPUOrCommand) {}; 59 emitExtern(StringRef Str)60 virtual void emitExtern(StringRef Str) {}; emitEnd()61 virtual void emitEnd() {}; 62 createWordDiffExpr(MCContext & Ctx,const MCSymbol * Hi,const MCSymbol * Lo)63 virtual const MCExpr *createWordDiffExpr(MCContext &Ctx, const MCSymbol *Hi, 64 const MCSymbol *Lo) { 65 return nullptr; 66 } 67 }; 68 69 class SystemZTargetGOFFStreamer : public SystemZTargetStreamer { 70 public: SystemZTargetGOFFStreamer(MCStreamer & S)71 SystemZTargetGOFFStreamer(MCStreamer &S) : SystemZTargetStreamer(S) {} 72 const MCExpr *createWordDiffExpr(MCContext &Ctx, const MCSymbol *Hi, 73 const MCSymbol *Lo) override; 74 }; 75 76 class SystemZTargetHLASMStreamer : public SystemZTargetStreamer { 77 formatted_raw_ostream &OS; 78 79 public: SystemZTargetHLASMStreamer(MCStreamer & S,formatted_raw_ostream & OS)80 SystemZTargetHLASMStreamer(MCStreamer &S, formatted_raw_ostream &OS) 81 : SystemZTargetStreamer(S), OS(OS) {} 82 SystemZHLASMAsmStreamer &getHLASMStreamer(); 83 void emitExtern(StringRef Sym) override; 84 void emitEnd() override; 85 const MCExpr *createWordDiffExpr(MCContext &Ctx, const MCSymbol *Hi, 86 const MCSymbol *Lo) override; 87 }; 88 89 class SystemZTargetELFStreamer : public SystemZTargetStreamer { 90 public: SystemZTargetELFStreamer(MCStreamer & S)91 SystemZTargetELFStreamer(MCStreamer &S) : SystemZTargetStreamer(S) {} emitMachine(StringRef CPUOrCommand)92 void emitMachine(StringRef CPUOrCommand) override {} 93 }; 94 95 class SystemZTargetGNUStreamer : public SystemZTargetStreamer { 96 formatted_raw_ostream &OS; 97 98 public: SystemZTargetGNUStreamer(MCStreamer & S,formatted_raw_ostream & OS)99 SystemZTargetGNUStreamer(MCStreamer &S, formatted_raw_ostream &OS) 100 : SystemZTargetStreamer(S), OS(OS) {} emitMachine(StringRef CPUOrCommand)101 void emitMachine(StringRef CPUOrCommand) override { 102 OS << "\t.machine " << CPUOrCommand << "\n"; 103 } 104 }; 105 106 } // end namespace llvm 107 108 #endif // LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZTARGETSTREAMER_H 109