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