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/CodeGen/TargetSubtargetInfo.h" 24 #include "llvm/IR/DataLayout.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 HasMessageSecurityAssist3; 43 bool HasMessageSecurityAssist4; 44 bool HasResetReferenceBitsMultiple; 45 bool HasFastSerialization; 46 bool HasInterlockedAccess1; 47 bool HasMiscellaneousExtensions; 48 bool HasExecutionHint; 49 bool HasLoadAndTrap; 50 bool HasTransactionalExecution; 51 bool HasProcessorAssist; 52 bool HasDFPZonedConversion; 53 bool HasEnhancedDAT2; 54 bool HasVector; 55 bool HasLoadStoreOnCond2; 56 bool HasLoadAndZeroRightmostByte; 57 bool HasMessageSecurityAssist5; 58 bool HasDFPPackedConversion; 59 bool HasMiscellaneousExtensions2; 60 bool HasGuardedStorage; 61 bool HasMessageSecurityAssist7; 62 bool HasMessageSecurityAssist8; 63 bool HasVectorEnhancements1; 64 bool HasVectorPackedDecimal; 65 bool HasInsertReferenceBitsMultiple; 66 67 private: 68 Triple TargetTriple; 69 SystemZInstrInfo InstrInfo; 70 SystemZTargetLowering TLInfo; 71 SystemZSelectionDAGInfo TSInfo; 72 SystemZFrameLowering FrameLowering; 73 74 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU, 75 StringRef FS); 76 public: 77 SystemZSubtarget(const Triple &TT, const std::string &CPU, 78 const std::string &FS, const TargetMachine &TM); 79 80 const TargetFrameLowering *getFrameLowering() const override { 81 return &FrameLowering; 82 } 83 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; } 84 const SystemZRegisterInfo *getRegisterInfo() const override { 85 return &InstrInfo.getRegisterInfo(); 86 } 87 const SystemZTargetLowering *getTargetLowering() const override { 88 return &TLInfo; 89 } 90 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 91 return &TSInfo; 92 } 93 94 // True if the subtarget should run MachineScheduler after aggressive 95 // coalescing. This currently replaces the SelectionDAG scheduler with the 96 // "source" order scheduler. 97 bool enableMachineScheduler() const override { return true; } 98 99 // This is important for reducing register pressure in vector code. 100 bool useAA() const override { return true; } 101 102 // Always enable the early if-conversion pass. 103 bool enableEarlyIfConversion() const override { return true; } 104 105 // Automatically generated by tblgen. 106 void ParseSubtargetFeatures(StringRef CPU, StringRef FS); 107 108 // Return true if the target has the distinct-operands facility. 109 bool hasDistinctOps() const { return HasDistinctOps; } 110 111 // Return true if the target has the load/store-on-condition facility. 112 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; } 113 114 // Return true if the target has the load/store-on-condition facility 2. 115 bool hasLoadStoreOnCond2() const { return HasLoadStoreOnCond2; } 116 117 // Return true if the target has the high-word facility. 118 bool hasHighWord() const { return HasHighWord; } 119 120 // Return true if the target has the floating-point extension facility. 121 bool hasFPExtension() const { return HasFPExtension; } 122 123 // Return true if the target has the population-count facility. 124 bool hasPopulationCount() const { return HasPopulationCount; } 125 126 // Return true if the target has the message-security-assist 127 // extension facility 3. 128 bool hasMessageSecurityAssist3() const { return HasMessageSecurityAssist3; } 129 130 // Return true if the target has the message-security-assist 131 // extension facility 4. 132 bool hasMessageSecurityAssist4() const { return HasMessageSecurityAssist4; } 133 134 // Return true if the target has the reset-reference-bits-multiple facility. 135 bool hasResetReferenceBitsMultiple() const { 136 return HasResetReferenceBitsMultiple; 137 } 138 139 // Return true if the target has the fast-serialization facility. 140 bool hasFastSerialization() const { return HasFastSerialization; } 141 142 // Return true if the target has interlocked-access facility 1. 143 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; } 144 145 // Return true if the target has the miscellaneous-extensions facility. 146 bool hasMiscellaneousExtensions() const { 147 return HasMiscellaneousExtensions; 148 } 149 150 // Return true if the target has the execution-hint facility. 151 bool hasExecutionHint() const { return HasExecutionHint; } 152 153 // Return true if the target has the load-and-trap facility. 154 bool hasLoadAndTrap() const { return HasLoadAndTrap; } 155 156 // Return true if the target has the transactional-execution facility. 157 bool hasTransactionalExecution() const { return HasTransactionalExecution; } 158 159 // Return true if the target has the processor-assist facility. 160 bool hasProcessorAssist() const { return HasProcessorAssist; } 161 162 // Return true if the target has the DFP zoned-conversion facility. 163 bool hasDFPZonedConversion() const { return HasDFPZonedConversion; } 164 165 // Return true if the target has the enhanced-DAT facility 2. 166 bool hasEnhancedDAT2() const { return HasEnhancedDAT2; } 167 168 // Return true if the target has the load-and-zero-rightmost-byte facility. 169 bool hasLoadAndZeroRightmostByte() const { 170 return HasLoadAndZeroRightmostByte; 171 } 172 173 // Return true if the target has the message-security-assist 174 // extension facility 5. 175 bool hasMessageSecurityAssist5() const { return HasMessageSecurityAssist5; } 176 177 // Return true if the target has the DFP packed-conversion facility. 178 bool hasDFPPackedConversion() const { return HasDFPPackedConversion; } 179 180 // Return true if the target has the vector facility. 181 bool hasVector() const { return HasVector; } 182 183 // Return true if the target has the miscellaneous-extensions facility 2. 184 bool hasMiscellaneousExtensions2() const { 185 return HasMiscellaneousExtensions2; 186 } 187 188 // Return true if the target has the guarded-storage facility. 189 bool hasGuardedStorage() const { return HasGuardedStorage; } 190 191 // Return true if the target has the message-security-assist 192 // extension facility 7. 193 bool hasMessageSecurityAssist7() const { return HasMessageSecurityAssist7; } 194 195 // Return true if the target has the message-security-assist 196 // extension facility 8. 197 bool hasMessageSecurityAssist8() const { return HasMessageSecurityAssist8; } 198 199 // Return true if the target has the vector-enhancements facility 1. 200 bool hasVectorEnhancements1() const { return HasVectorEnhancements1; } 201 202 // Return true if the target has the vector-packed-decimal facility. 203 bool hasVectorPackedDecimal() const { return HasVectorPackedDecimal; } 204 205 // Return true if the target has the insert-reference-bits-multiple facility. 206 bool hasInsertReferenceBitsMultiple() const { 207 return HasInsertReferenceBitsMultiple; 208 } 209 210 // Return true if GV can be accessed using LARL for reloc model RM 211 // and code model CM. 212 bool isPC32DBLSymbol(const GlobalValue *GV, CodeModel::Model CM) const; 213 214 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } 215 }; 216 } // end namespace llvm 217 218 #endif 219
