1 //===-- SystemZSubtarget.h - SystemZ subtarget information -----*- 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 // This file declares the SystemZ specific subclass of TargetSubtargetInfo. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H 14 #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZSUBTARGET_H 15 16 #include "SystemZFrameLowering.h" 17 #include "SystemZISelLowering.h" 18 #include "SystemZInstrInfo.h" 19 #include "SystemZRegisterInfo.h" 20 #include "SystemZSelectionDAGInfo.h" 21 #include "llvm/ADT/Triple.h" 22 #include "llvm/CodeGen/TargetSubtargetInfo.h" 23 #include "llvm/IR/DataLayout.h" 24 #include <string> 25 26 #define GET_SUBTARGETINFO_HEADER 27 #include "SystemZGenSubtargetInfo.inc" 28 29 namespace llvm { 30 class GlobalValue; 31 class StringRef; 32 33 class SystemZSubtarget : public SystemZGenSubtargetInfo { 34 virtual void anchor(); 35 protected: 36 bool HasDistinctOps; 37 bool HasLoadStoreOnCond; 38 bool HasHighWord; 39 bool HasFPExtension; 40 bool HasPopulationCount; 41 bool HasMessageSecurityAssist3; 42 bool HasMessageSecurityAssist4; 43 bool HasResetReferenceBitsMultiple; 44 bool HasFastSerialization; 45 bool HasInterlockedAccess1; 46 bool HasMiscellaneousExtensions; 47 bool HasExecutionHint; 48 bool HasLoadAndTrap; 49 bool HasTransactionalExecution; 50 bool HasProcessorAssist; 51 bool HasDFPZonedConversion; 52 bool HasEnhancedDAT2; 53 bool HasVector; 54 bool HasLoadStoreOnCond2; 55 bool HasLoadAndZeroRightmostByte; 56 bool HasMessageSecurityAssist5; 57 bool HasDFPPackedConversion; 58 bool HasMiscellaneousExtensions2; 59 bool HasGuardedStorage; 60 bool HasMessageSecurityAssist7; 61 bool HasMessageSecurityAssist8; 62 bool HasVectorEnhancements1; 63 bool HasVectorPackedDecimal; 64 bool HasInsertReferenceBitsMultiple; 65 bool HasMiscellaneousExtensions3; 66 bool HasMessageSecurityAssist9; 67 bool HasVectorEnhancements2; 68 bool HasVectorPackedDecimalEnhancement; 69 bool HasEnhancedSort; 70 bool HasDeflateConversion; 71 bool HasSoftFloat; 72 73 private: 74 Triple TargetTriple; 75 SystemZInstrInfo InstrInfo; 76 SystemZTargetLowering TLInfo; 77 SystemZSelectionDAGInfo TSInfo; 78 SystemZFrameLowering FrameLowering; 79 80 SystemZSubtarget &initializeSubtargetDependencies(StringRef CPU, 81 StringRef FS); 82 public: 83 SystemZSubtarget(const Triple &TT, const std::string &CPU, 84 const std::string &FS, const TargetMachine &TM); 85 86 const TargetFrameLowering *getFrameLowering() const override { 87 return &FrameLowering; 88 } 89 const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; } 90 const SystemZRegisterInfo *getRegisterInfo() const override { 91 return &InstrInfo.getRegisterInfo(); 92 } 93 const SystemZTargetLowering *getTargetLowering() const override { 94 return &TLInfo; 95 } 96 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override { 97 return &TSInfo; 98 } 99 100 // True if the subtarget should run MachineScheduler after aggressive 101 // coalescing. This currently replaces the SelectionDAG scheduler with the 102 // "source" order scheduler. 103 bool enableMachineScheduler() const override { return true; } 104 105 // This is important for reducing register pressure in vector code. 106 bool useAA() const override { return true; } 107 108 // Always enable the early if-conversion pass. 109 bool enableEarlyIfConversion() const override { return true; } 110 111 // Enable tracking of subregister liveness in register allocator. 112 bool enableSubRegLiveness() const override; 113 114 // Automatically generated by tblgen. 115 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS); 116 117 // Return true if the target has the distinct-operands facility. 118 bool hasDistinctOps() const { return HasDistinctOps; } 119 120 // Return true if the target has the load/store-on-condition facility. 121 bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; } 122 123 // Return true if the target has the load/store-on-condition facility 2. 124 bool hasLoadStoreOnCond2() const { return HasLoadStoreOnCond2; } 125 126 // Return true if the target has the high-word facility. 127 bool hasHighWord() const { return HasHighWord; } 128 129 // Return true if the target has the floating-point extension facility. 130 bool hasFPExtension() const { return HasFPExtension; } 131 132 // Return true if the target has the population-count facility. 133 bool hasPopulationCount() const { return HasPopulationCount; } 134 135 // Return true if the target has the message-security-assist 136 // extension facility 3. 137 bool hasMessageSecurityAssist3() const { return HasMessageSecurityAssist3; } 138 139 // Return true if the target has the message-security-assist 140 // extension facility 4. 141 bool hasMessageSecurityAssist4() const { return HasMessageSecurityAssist4; } 142 143 // Return true if the target has the reset-reference-bits-multiple facility. 144 bool hasResetReferenceBitsMultiple() const { 145 return HasResetReferenceBitsMultiple; 146 } 147 148 // Return true if the target has the fast-serialization facility. 149 bool hasFastSerialization() const { return HasFastSerialization; } 150 151 // Return true if the target has interlocked-access facility 1. 152 bool hasInterlockedAccess1() const { return HasInterlockedAccess1; } 153 154 // Return true if the target has the miscellaneous-extensions facility. 155 bool hasMiscellaneousExtensions() const { 156 return HasMiscellaneousExtensions; 157 } 158 159 // Return true if the target has the execution-hint facility. 160 bool hasExecutionHint() const { return HasExecutionHint; } 161 162 // Return true if the target has the load-and-trap facility. 163 bool hasLoadAndTrap() const { return HasLoadAndTrap; } 164 165 // Return true if the target has the transactional-execution facility. 166 bool hasTransactionalExecution() const { return HasTransactionalExecution; } 167 168 // Return true if the target has the processor-assist facility. 169 bool hasProcessorAssist() const { return HasProcessorAssist; } 170 171 // Return true if the target has the DFP zoned-conversion facility. 172 bool hasDFPZonedConversion() const { return HasDFPZonedConversion; } 173 174 // Return true if the target has the enhanced-DAT facility 2. 175 bool hasEnhancedDAT2() const { return HasEnhancedDAT2; } 176 177 // Return true if the target has the load-and-zero-rightmost-byte facility. 178 bool hasLoadAndZeroRightmostByte() const { 179 return HasLoadAndZeroRightmostByte; 180 } 181 182 // Return true if the target has the message-security-assist 183 // extension facility 5. 184 bool hasMessageSecurityAssist5() const { return HasMessageSecurityAssist5; } 185 186 // Return true if the target has the DFP packed-conversion facility. 187 bool hasDFPPackedConversion() const { return HasDFPPackedConversion; } 188 189 // Return true if the target has the vector facility. 190 bool hasVector() const { return HasVector; } 191 192 // Return true if the target has the miscellaneous-extensions facility 2. 193 bool hasMiscellaneousExtensions2() const { 194 return HasMiscellaneousExtensions2; 195 } 196 197 // Return true if the target has the guarded-storage facility. 198 bool hasGuardedStorage() const { return HasGuardedStorage; } 199 200 // Return true if the target has the message-security-assist 201 // extension facility 7. 202 bool hasMessageSecurityAssist7() const { return HasMessageSecurityAssist7; } 203 204 // Return true if the target has the message-security-assist 205 // extension facility 8. 206 bool hasMessageSecurityAssist8() const { return HasMessageSecurityAssist8; } 207 208 // Return true if the target has the vector-enhancements facility 1. 209 bool hasVectorEnhancements1() const { return HasVectorEnhancements1; } 210 211 // Return true if the target has the vector-packed-decimal facility. 212 bool hasVectorPackedDecimal() const { return HasVectorPackedDecimal; } 213 214 // Return true if the target has the insert-reference-bits-multiple facility. 215 bool hasInsertReferenceBitsMultiple() const { 216 return HasInsertReferenceBitsMultiple; 217 } 218 219 // Return true if the target has the miscellaneous-extensions facility 3. 220 bool hasMiscellaneousExtensions3() const { 221 return HasMiscellaneousExtensions3; 222 } 223 224 // Return true if the target has the message-security-assist 225 // extension facility 9. 226 bool hasMessageSecurityAssist9() const { return HasMessageSecurityAssist9; } 227 228 // Return true if the target has the vector-enhancements facility 2. 229 bool hasVectorEnhancements2() const { return HasVectorEnhancements2; } 230 231 // Return true if the target has the vector-packed-decimal 232 // enhancement facility. 233 bool hasVectorPackedDecimalEnhancement() const { 234 return HasVectorPackedDecimalEnhancement; 235 } 236 237 // Return true if the target has the enhanced-sort facility. 238 bool hasEnhancedSort() const { return HasEnhancedSort; } 239 240 // Return true if the target has the deflate-conversion facility. 241 bool hasDeflateConversion() const { return HasDeflateConversion; } 242 243 // Return true if soft float should be used. 244 bool hasSoftFloat() const { return HasSoftFloat; } 245 246 // Return true if GV can be accessed using LARL for reloc model RM 247 // and code model CM. 248 bool isPC32DBLSymbol(const GlobalValue *GV, CodeModel::Model CM) const; 249 250 bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); } 251 }; 252 } // end namespace llvm 253 254 #endif 255