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/ADT/Triple.h" 23 #include "llvm/IR/DataLayout.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 HasMessageSecurityAssist4; 43 bool HasFastSerialization; 44 bool HasInterlockedAccess1; 45 bool HasMiscellaneousExtensions; 46 bool HasExecutionHint; 47 bool HasLoadAndTrap; 48 bool HasTransactionalExecution; 49 bool HasProcessorAssist; 50 bool HasDFPZonedConversion; 51 bool HasVector; 52 bool HasLoadStoreOnCond2; 53 bool HasLoadAndZeroRightmostByte; 54 bool HasMessageSecurityAssist5; 55 bool HasDFPPackedConversion; 56 57 private: 58 Triple TargetTriple; 59 SystemZInstrInfo InstrInfo; 60 SystemZTargetLowering TLInfo; 61 SystemZSelectionDAGInfo TSInfo; 62 SystemZFrameLowering FrameLowering; 63 64 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU, 65 StringRef FS); 66 public: 67 SystemZSubtarget(const Triple &TT, const std::string &CPU, 68 const std::string &FS, const TargetMachine &TM); 69 70 const TargetFrameLowering *getFrameLowering() const override { 71 return &FrameLowering; 72 } 73 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; } 74 const SystemZRegisterInfo *getRegisterInfo() const override { 75 return &InstrInfo.getRegisterInfo(); 76 } 77 const SystemZTargetLowering *getTargetLowering() const override { 78 return &TLInfo; 79 } 80 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 81 return &TSInfo; 82 } 83 84 // This is important for reducing register pressure in vector code. 85 bool useAA() const override { return true; } 86 87 // Always enable the early if-conversion pass. 88 bool enableEarlyIfConversion() const override { return true; } 89 90 // Automatically generated by tblgen. 91 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 92 93 // Return true if the target has the distinct-operands facility. 94 bool hasDistinctOps() const { return HasDistinctOps; } 95 96 // Return true if the target has the load/store-on-condition facility. 97 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; } 98 99 // Return true if the target has the load/store-on-condition facility 2. 100 bool hasLoadStoreOnCond2() const { return HasLoadStoreOnCond2; } 101 102 // Return true if the target has the high-word facility. 103 bool hasHighWord() const { return HasHighWord; } 104 105 // Return true if the target has the floating-point extension facility. 106 bool hasFPExtension() const { return HasFPExtension; } 107 108 // Return true if the target has the population-count facility. 109 bool hasPopulationCount() const { return HasPopulationCount; } 110 111 // Return true if the target has the message-security-assist 112 // extension facility 4. 113 bool hasMessageSecurityAssist4() const { return HasMessageSecurityAssist4; } 114 115 // Return true if the target has the fast-serialization facility. 116 bool hasFastSerialization() const { return HasFastSerialization; } 117 118 // Return true if the target has interlocked-access facility 1. 119 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; } 120 121 // Return true if the target has the miscellaneous-extensions facility. 122 bool hasMiscellaneousExtensions() const { 123 return HasMiscellaneousExtensions; 124 } 125 126 // Return true if the target has the execution-hint facility. 127 bool hasExecutionHint() const { return HasExecutionHint; } 128 129 // Return true if the target has the load-and-trap facility. 130 bool hasLoadAndTrap() const { return HasLoadAndTrap; } 131 132 // Return true if the target has the transactional-execution facility. 133 bool hasTransactionalExecution() const { return HasTransactionalExecution; } 134 135 // Return true if the target has the processor-assist facility. 136 bool hasProcessorAssist() const { return HasProcessorAssist; } 137 138 // Return true if the target has the DFP zoned-conversion facility. 139 bool hasDFPZonedConversion() const { return HasDFPZonedConversion; } 140 141 // Return true if the target has the load-and-zero-rightmost-byte facility. 142 bool hasLoadAndZeroRightmostByte() const { 143 return HasLoadAndZeroRightmostByte; 144 } 145 146 // Return true if the target has the message-security-assist 147 // extension facility 5. 148 bool hasMessageSecurityAssist5() const { return HasMessageSecurityAssist5; } 149 150 // Return true if the target has the DFP packed-conversion facility. 151 bool hasDFPPackedConversion() const { return HasDFPPackedConversion; } 152 153 // Return true if the target has the vector facility. 154 bool hasVector() const { return HasVector; } 155 156 // Return true if GV can be accessed using LARL for reloc model RM 157 // and code model CM. 158 bool isPC32DBLSymbol(const GlobalValue *GV, CodeModel::Model CM) const; 159 160 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } 161 }; 162 } // end namespace llvm 163 164 #endif 165