lib/Target/SystemZ/SystemZSubtarget.h

   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
  85   const TargetFrameLowering *getFrameLowering() const override {
  86     return &FrameLowering;
  87   }
  88   const SystemZInstrInfo *getInstrInfo() const override { return &InstrInfo; }
  89   const SystemZRegisterInfo *getRegisterInfo() const override {
  90     return &InstrInfo.getRegisterInfo();
  91   }
  92   const SystemZTargetLowering *getTargetLowering() const override {
  93     return &TLInfo;
  94   }
  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.
 102   bool enableMachineScheduler() const override { return true; }
 103
 104   // This is important for reducing register pressure in vector code.
 105   bool useAA() const override { return true; }
 106
 107   // Always enable the early if-conversion pass.
 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.
 117   bool hasDistinctOps() const { return HasDistinctOps; }
 118
 119   // Return true if the target has the load/store-on-condition facility.
 120   bool hasLoadStoreOnCond() const { return HasLoadStoreOnCond; }
 121
 122   // Return true if the target has the load/store-on-condition facility 2.
 123   bool hasLoadStoreOnCond2() const { return HasLoadStoreOnCond2; }
 124
 125   // Return true if the target has the high-word facility.
 126   bool hasHighWord() const { return HasHighWord; }
 127
 128   // Return true if the target has the floating-point extension facility.
 129   bool hasFPExtension() const { return HasFPExtension; }
 130
 131   // Return true if the target has the population-count facility.
 132   bool hasPopulationCount() const { return HasPopulationCount; }
 133
 134   // Return true if the target has the message-security-assist
 135   // extension facility 3.
 136   bool hasMessageSecurityAssist3() const { return HasMessageSecurityAssist3; }
 137
 138   // Return true if the target has the message-security-assist
 139   // extension facility 4.
 140   bool hasMessageSecurityAssist4() const { return HasMessageSecurityAssist4; }
 141
 142   // Return true if the target has the reset-reference-bits-multiple facility.
 143   bool hasResetReferenceBitsMultiple() const {
 144     return HasResetReferenceBitsMultiple;
 145   }
 146
 147   // Return true if the target has the fast-serialization facility.
 148   bool hasFastSerialization() const { return HasFastSerialization; }
 149
 150   // Return true if the target has interlocked-access facility 1.
 151   bool hasInterlockedAccess1() const { return HasInterlockedAccess1; }
 152
 153   // Return true if the target has the miscellaneous-extensions facility.
 154   bool hasMiscellaneousExtensions() const {
 155     return HasMiscellaneousExtensions;
 156   }
 157
 158   // Return true if the target has the execution-hint facility.
 159   bool hasExecutionHint() const { return HasExecutionHint; }
 160
 161   // Return true if the target has the load-and-trap facility.
 162   bool hasLoadAndTrap() const { return HasLoadAndTrap; }
 163
 164   // Return true if the target has the transactional-execution facility.
 165   bool hasTransactionalExecution() const { return HasTransactionalExecution; }
 166
 167   // Return true if the target has the processor-assist facility.
 168   bool hasProcessorAssist() const { return HasProcessorAssist; }
 169
 170   // Return true if the target has the DFP zoned-conversion facility.
 171   bool hasDFPZonedConversion() const { return HasDFPZonedConversion; }
 172
 173   // Return true if the target has the enhanced-DAT facility 2.
 174   bool hasEnhancedDAT2() const { return HasEnhancedDAT2; }
 175
 176   // Return true if the target has the load-and-zero-rightmost-byte facility.
 177   bool hasLoadAndZeroRightmostByte() const {
 178     return HasLoadAndZeroRightmostByte;
 179   }
 180
 181   // Return true if the target has the message-security-assist
 182   // extension facility 5.
 183   bool hasMessageSecurityAssist5() const { return HasMessageSecurityAssist5; }
 184
 185   // Return true if the target has the DFP packed-conversion facility.
 186   bool hasDFPPackedConversion() const { return HasDFPPackedConversion; }
 187
 188   // Return true if the target has the vector facility.
 189   bool hasVector() const { return HasVector; }
 190
 191   // Return true if the target has the miscellaneous-extensions facility 2.
 192   bool hasMiscellaneousExtensions2() const {
 193     return HasMiscellaneousExtensions2;
 194   }
 195
 196   // Return true if the target has the guarded-storage facility.
 197   bool hasGuardedStorage() const { return HasGuardedStorage; }
 198
 199   // Return true if the target has the message-security-assist
 200   // extension facility 7.
 201   bool hasMessageSecurityAssist7() const { return HasMessageSecurityAssist7; }
 202
 203   // Return true if the target has the message-security-assist
 204   // extension facility 8.
 205   bool hasMessageSecurityAssist8() const { return HasMessageSecurityAssist8; }
 206
 207   // Return true if the target has the vector-enhancements facility 1.
 208   bool hasVectorEnhancements1() const { return HasVectorEnhancements1; }
 209
 210   // Return true if the target has the vector-packed-decimal facility.
 211   bool hasVectorPackedDecimal() const { return HasVectorPackedDecimal; }
 212
 213   // Return true if the target has the insert-reference-bits-multiple facility.
 214   bool hasInsertReferenceBitsMultiple() const {
 215     return HasInsertReferenceBitsMultiple;
 216   }
 217
 218   // Return true if the target has the miscellaneous-extensions facility 3.
 219   bool hasMiscellaneousExtensions3() const {
 220     return HasMiscellaneousExtensions3;
 221   }
 222
 223   // Return true if the target has the message-security-assist
 224   // extension facility 9.
 225   bool hasMessageSecurityAssist9() const { return HasMessageSecurityAssist9; }
 226
 227   // Return true if the target has the vector-enhancements facility 2.
 228   bool hasVectorEnhancements2() const { return HasVectorEnhancements2; }
 229
 230   // Return true if the target has the vector-packed-decimal
 231   // enhancement facility.
 232   bool hasVectorPackedDecimalEnhancement() const {
 233     return HasVectorPackedDecimalEnhancement;
 234   }
 235
 236   // Return true if the target has the enhanced-sort facility.
 237   bool hasEnhancedSort() const { return HasEnhancedSort; }
 238
 239   // Return true if the target has the deflate-conversion facility.
 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
 246   bool isTargetELF() const { return TargetTriple.isOSBinFormatELF(); }
 247 };
 248 } // end namespace llvm
 249
 250 #endif