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 LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H 15 #define LLVM_LIB_TARGET_SYSTEMZ_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 HasPopulationCount; 42 bool HasFastSerialization; 43 bool HasInterlockedAccess1; 44 bool HasMiscellaneousExtensions; 45 bool HasTransactionalExecution; 46 bool HasProcessorAssist; 47 bool HasVector; 48 49 private: 50 Triple TargetTriple; 51 SystemZInstrInfo InstrInfo; 52 SystemZTargetLowering TLInfo; 53 SystemZSelectionDAGInfo TSInfo; 54 SystemZFrameLowering FrameLowering; 55 56 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU, 57 StringRef FS); 58 public: 59 SystemZSubtarget(const Triple &TT, const std::string &CPU, 60 const std::string &FS, const TargetMachine &TM); 61 getFrameLowering()62 const TargetFrameLowering *getFrameLowering() const override { 63 return &FrameLowering; 64 } getInstrInfo()65 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; } getRegisterInfo()66 const SystemZRegisterInfo *getRegisterInfo() const override { 67 return &InstrInfo.getRegisterInfo(); 68 } getTargetLowering()69 const SystemZTargetLowering *getTargetLowering() const override { 70 return &TLInfo; 71 } getSelectionDAGInfo()72 const TargetSelectionDAGInfo *getSelectionDAGInfo() const override { 73 return &TSInfo; 74 } 75 76 // This is important for reducing register pressure in vector code. useAA()77 bool useAA() const override { return true; } 78 79 // Automatically generated by tblgen. 80 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 81 82 // Return true if the target has the distinct-operands facility. hasDistinctOps()83 bool hasDistinctOps() const { return HasDistinctOps; } 84 85 // Return true if the target has the load/store-on-condition facility. hasLoadStoreOnCond()86 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; } 87 88 // Return true if the target has the high-word facility. hasHighWord()89 bool hasHighWord() const { return HasHighWord; } 90 91 // Return true if the target has the floating-point extension facility. hasFPExtension()92 bool hasFPExtension() const { return HasFPExtension; } 93 94 // Return true if the target has the population-count facility. hasPopulationCount()95 bool hasPopulationCount() const { return HasPopulationCount; } 96 97 // Return true if the target has the fast-serialization facility. hasFastSerialization()98 bool hasFastSerialization() const { return HasFastSerialization; } 99 100 // Return true if the target has interlocked-access facility 1. hasInterlockedAccess1()101 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; } 102 103 // Return true if the target has the miscellaneous-extensions facility. hasMiscellaneousExtensions()104 bool hasMiscellaneousExtensions() const { 105 return HasMiscellaneousExtensions; 106 } 107 108 // Return true if the target has the transactional-execution facility. hasTransactionalExecution()109 bool hasTransactionalExecution() const { return HasTransactionalExecution; } 110 111 // Return true if the target has the processor-assist facility. hasProcessorAssist()112 bool hasProcessorAssist() const { return HasProcessorAssist; } 113 114 // Return true if the target has the vector facility. hasVector()115 bool hasVector() const { return HasVector; } 116 117 // Return true if GV can be accessed using LARL for reloc model RM 118 // and code model CM. 119 bool isPC32DBLSymbol(const GlobalValue *GV, Reloc::Model RM, 120 CodeModel::Model CM) const; 121 isTargetELF()122 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } 123 }; 124 } // end namespace llvm 125 126 #endif 127