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usr / src / contrib / llvm-project / llvm / lib / Target / SystemZ /

📁 ..
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 README.txt(3.94 KB)
📄 SystemZ.h(8.19 KB)
📄 SystemZ.td(2.86 KB)
📄 SystemZAsmPrinter.cpp(23.49 KB)
📄 SystemZAsmPrinter.h(1.88 KB)
📄 SystemZCallingConv.cpp(710 B)
📄 SystemZCallingConv.h(4.89 KB)
📄 SystemZCallingConv.td(6.99 KB)
📄 SystemZConstantPoolValue.cpp(1.78 KB)
📄 SystemZConstantPoolValue.h(1.75 KB)
📄 SystemZCopyPhysRegs.cpp(3.82 KB)
📄 SystemZElimCompare.cpp(26.21 KB)
📄 SystemZFeatures.td(12.3 KB)
📄 SystemZFrameLowering.cpp(29.88 KB)
📄 SystemZFrameLowering.h(3.02 KB)
📄 SystemZHazardRecognizer.cpp(14.75 KB)
📄 SystemZHazardRecognizer.h(5.86 KB)
📄 SystemZISelDAGToDAG.cpp(68.74 KB)
📄 SystemZISelLowering.cpp(321.22 KB)
📄 SystemZISelLowering.h(28.44 KB)
📄 SystemZInstrBuilder.h(1.63 KB)
📄 SystemZInstrDFP.td(9.3 KB)
📄 SystemZInstrFP.td(26.21 KB)
📄 SystemZInstrFormats.td(182.82 KB)
📄 SystemZInstrHFP.td(9.46 KB)
📄 SystemZInstrInfo.cpp(69.75 KB)
📄 SystemZInstrInfo.h(14.6 KB)
📄 SystemZInstrInfo.td(103.17 KB)
📄 SystemZInstrSystem.td(17.18 KB)
📄 SystemZInstrVector.td(84.36 KB)
📄 SystemZLDCleanup.cpp(4.91 KB)
📄 SystemZLongBranch.cpp(16.04 KB)
📄 SystemZMCInstLower.cpp(3.16 KB)
📄 SystemZMCInstLower.h(1.28 KB)
📄 SystemZMachineFunctionInfo.cpp(508 B)
📄 SystemZMachineFunctionInfo.h(3.77 KB)
📄 SystemZMachineScheduler.cpp(8.76 KB)
📄 SystemZMachineScheduler.h(5.05 KB)
📄 SystemZOperands.td(24.89 KB)
📄 SystemZOperators.td(48.97 KB)
📄 SystemZPatterns.td(8.52 KB)
📄 SystemZPostRewrite.cpp(10.33 KB)
📄 SystemZProcessors.td(1.78 KB)
📄 SystemZRegisterInfo.cpp(16.27 KB)
📄 SystemZRegisterInfo.h(3.52 KB)
📄 SystemZRegisterInfo.td(12.04 KB)
📄 SystemZSchedule.td(2.1 KB)
📄 SystemZScheduleZ13.td(72.43 KB)
📄 SystemZScheduleZ14.td(78.06 KB)
📄 SystemZScheduleZ15.td(80.69 KB)
📄 SystemZScheduleZ196.td(55.68 KB)
📄 SystemZScheduleZEC12.td(57.44 KB)
📄 SystemZSelectionDAGInfo.cpp(12.92 KB)
📄 SystemZSelectionDAGInfo.h(3.15 KB)
📄 SystemZShortenInst.cpp(12 KB)
📄 SystemZSubtarget.cpp(3.67 KB)
📄 SystemZSubtarget.h(9.14 KB)
📄 SystemZTDC.cpp(13.52 KB)
📄 SystemZTargetMachine.cpp(11.58 KB)
📄 SystemZTargetMachine.h(2.09 KB)
📄 SystemZTargetTransformInfo.cpp(43.51 KB)
📄 SystemZTargetTransformInfo.h(4.88 KB)
📁 TargetInfo

Editing: SystemZRegisterInfo.h

//===-- SystemZRegisterInfo.h - SystemZ register information ----*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZREGISTERINFO_H
#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZREGISTERINFO_H

#include "SystemZ.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"

#define GET_REGINFO_HEADER
#include "SystemZGenRegisterInfo.inc"

namespace llvm {

class LiveIntervals;

namespace SystemZ {
// Return the subreg to use for referring to the even and odd registers
// in a GR128 pair.  Is32Bit says whether we want a GR32 or GR64.
inline unsigned even128(bool Is32bit) {
  return Is32bit ? subreg_hl32 : subreg_h64;
}
inline unsigned odd128(bool Is32bit) {
  return Is32bit ? subreg_l32 : subreg_l64;
}

// Reg should be a 32-bit GPR.  Return true if it is a high register rather
// than a low register.
inline bool isHighReg(unsigned int Reg) {
  if (SystemZ::GRH32BitRegClass.contains(Reg))
    return true;
  assert(SystemZ::GR32BitRegClass.contains(Reg) && "Invalid GRX32");
  return false;
}
} // end namespace SystemZ

struct SystemZRegisterInfo : public SystemZGenRegisterInfo {
public:
  SystemZRegisterInfo();

/// getPointerRegClass - Return the register class to use to hold pointers.
  /// This is currently only used by LOAD_STACK_GUARD, which requires a non-%r0
  /// register, hence ADDR64.
  const TargetRegisterClass *
  getPointerRegClass(const MachineFunction &MF,
                     unsigned Kind=0) const override {
    return &SystemZ::ADDR64BitRegClass;
  }

/// getCrossCopyRegClass - Returns a legal register class to copy a register
  /// in the specified class to or from. Returns NULL if it is possible to copy
  /// between a two registers of the specified class.
  const TargetRegisterClass *
  getCrossCopyRegClass(const TargetRegisterClass *RC) const override;

bool getRegAllocationHints(Register VirtReg, ArrayRef<MCPhysReg> Order,
                             SmallVectorImpl<MCPhysReg> &Hints,
                             const MachineFunction &MF, const VirtRegMap *VRM,
                             const LiveRegMatrix *Matrix) const override;

// Override TargetRegisterInfo.h.
  bool requiresRegisterScavenging(const MachineFunction &MF) const override {
    return true;
  }
  bool requiresFrameIndexScavenging(const MachineFunction &MF) const override {
    return true;
  }
  const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
  const uint32_t *getCallPreservedMask(const MachineFunction &MF,
                                       CallingConv::ID CC) const override;
  BitVector getReservedRegs(const MachineFunction &MF) const override;
  void eliminateFrameIndex(MachineBasicBlock::iterator MI,
                           int SPAdj, unsigned FIOperandNum,
                           RegScavenger *RS) const override;

/// SrcRC and DstRC will be morphed into NewRC if this returns true.
 bool shouldCoalesce(MachineInstr *MI,
                      const TargetRegisterClass *SrcRC,
                      unsigned SubReg,
                      const TargetRegisterClass *DstRC,
                      unsigned DstSubReg,
                      const TargetRegisterClass *NewRC,
                      LiveIntervals &LIS) const override;

} // end namespace llvm

#endif

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Editing: SystemZRegisterInfo.h

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