1 //===-- SystemZSubtarget.h - SystemZ subtarget information -----*- 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 declares the SystemZ specific subclass of TargetSubtargetInfo. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef SYSTEMZSUBTARGET_H 15 #define SYSTEMZSUBTARGET_H 16 17 #include "SystemZFrameLowering.h" 18 #include "SystemZISelLowering.h" 19 #include "SystemZInstrInfo.h" 20 #include "SystemZRegisterInfo.h" 21 #include "SystemZSelectionDAGInfo.h" 22 #include "llvm/IR/DataLayout.h" 23 #include "llvm/ADT/Triple.h" 24 #include "llvm/Target/TargetSubtargetInfo.h" 25 #include <string> 26 27 #define GET_SUBTARGETINFO_HEADER 28 #include "SystemZGenSubtargetInfo.inc" 29 30 namespace llvm { 31 class GlobalValue; 32 class StringRef; 33 34 class SystemZSubtarget : public SystemZGenSubtargetInfo { 35 virtual void anchor(); 36 protected: 37 bool HasDistinctOps; 38 bool HasLoadStoreOnCond; 39 bool HasHighWord; 40 bool HasFPExtension; 41 bool HasFastSerialization; 42 bool HasInterlockedAccess1; 43 44 private: 45 Triple TargetTriple; 46 const DataLayout DL; 47 SystemZInstrInfo InstrInfo; 48 SystemZTargetLowering TLInfo; 49 SystemZSelectionDAGInfo TSInfo; 50 SystemZFrameLowering FrameLowering; 51 52 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU, 53 StringRef FS); 54 public: 55 SystemZSubtarget(const std::string &TT, const std::string &CPU, 56 const std::string &FS, const TargetMachine &TM); 57 58 const TargetFrameLowering *getFrameLowering() const { return &FrameLowering; } 59 const SystemZInstrInfo *getInstrInfo() const { return &InstrInfo; } 60 const DataLayout *getDataLayout() const { return &DL; } 61 const SystemZRegisterInfo *getRegisterInfo() const { 62 return &InstrInfo.getRegisterInfo(); 63 } 64 const SystemZTargetLowering *getTargetLowering() const { return &TLInfo; } 65 const TargetSelectionDAGInfo *getSelectionDAGInfo() const { return &TSInfo; } 66 67 // This is important for reducing register pressure in vector code. 68 bool useAA() const override { return true; } 69 70 // Automatically generated by tblgen. 71 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 72 73 // Return true if the target has the distinct-operands facility. 74 bool hasDistinctOps() const { return HasDistinctOps; } 75 76 // Return true if the target has the load/store-on-condition facility. 77 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; } 78 79 // Return true if the target has the high-word facility. 80 bool hasHighWord() const { return HasHighWord; } 81 82 // Return true if the target has the floating-point extension facility. 83 bool hasFPExtension() const { return HasFPExtension; } 84 85 // Return true if the target has the fast-serialization facility. 86 bool hasFastSerialization() const { return HasFastSerialization; } 87 88 // Return true if the target has interlocked-access facility 1. 89 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; } 90 91 // Return true if GV can be accessed using LARL for reloc model RM 92 // and code model CM. 93 bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM, 94 CodeModel::Model CM) const; 95 96 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } 97 }; 98 } // end namespace llvm 99 100 #endif 101
