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📄 A15SDOptimizer.cpp(24.01 KB)
📄 ARM.h(2.78 KB)
📄 ARM.td(73.6 KB)
📄 ARMAsmPrinter.cpp(80.17 KB)
📄 ARMAsmPrinter.h(5.74 KB)
📄 ARMBaseInstrInfo.cpp(209.03 KB)
📄 ARMBaseInstrInfo.h(36.07 KB)
📄 ARMBaseRegisterInfo.cpp(34.2 KB)
📄 ARMBaseRegisterInfo.h(7.84 KB)
📄 ARMBasicBlockInfo.cpp(5.18 KB)
📄 ARMBasicBlockInfo.h(5.25 KB)
📄 ARMCallLowering.cpp(19.74 KB)
📄 ARMCallLowering.h(1.89 KB)
📄 ARMCallingConv.cpp(11.8 KB)
📄 ARMCallingConv.h(2.43 KB)
📄 ARMCallingConv.td(14.63 KB)
📄 ARMConstantIslandPass.cpp(90.84 KB)
📄 ARMConstantPoolValue.cpp(11.53 KB)
📄 ARMConstantPoolValue.h(10.1 KB)
📄 ARMExpandPseudoInsts.cpp(115.56 KB)
📄 ARMFastISel.cpp(106.14 KB)
📄 ARMFeatures.h(2.48 KB)
📄 ARMFrameLowering.cpp(102.32 KB)
📄 ARMFrameLowering.h(4.02 KB)
📄 ARMHazardRecognizer.cpp(3.41 KB)
📄 ARMHazardRecognizer.h(1.54 KB)
📄 ARMISelDAGToDAG.cpp(206.42 KB)
📄 ARMISelLowering.cpp(728.6 KB)
📄 ARMISelLowering.h(38.98 KB)
📄 ARMInstrCDE.td(24.04 KB)
📄 ARMInstrFormats.td(93.92 KB)
📄 ARMInstrInfo.cpp(4.2 KB)
📄 ARMInstrInfo.h(1.49 KB)
📄 ARMInstrInfo.td(243.51 KB)
📄 ARMInstrMVE.td(299.67 KB)
📄 ARMInstrNEON.td(436.25 KB)
📄 ARMInstrThumb.td(65.92 KB)
📄 ARMInstrThumb2.td(211.06 KB)
📄 ARMInstrVFP.td(110.46 KB)
📄 ARMInstructionSelector.cpp(39.12 KB)
📄 ARMLegalizerInfo.cpp(18.8 KB)
📄 ARMLegalizerInfo.h(2.41 KB)
📄 ARMLoadStoreOptimizer.cpp(94.44 KB)
📄 ARMLowOverheadLoops.cpp(60.28 KB)
📄 ARMMCInstLower.cpp(7.2 KB)
📄 ARMMachineFunctionInfo.cpp(821 B)
📄 ARMMachineFunctionInfo.h(9.68 KB)
📄 ARMMacroFusion.cpp(2.36 KB)
📄 ARMMacroFusion.h(966 B)
📄 ARMOptimizeBarriersPass.cpp(3.43 KB)
📄 ARMParallelDSP.cpp(26.82 KB)
📄 ARMPerfectShuffle.h(382.02 KB)
📄 ARMPredicates.td(14.16 KB)
📄 ARMRegisterBankInfo.cpp(18.18 KB)
📄 ARMRegisterBankInfo.h(1.41 KB)
📄 ARMRegisterBanks.td(577 B)
📄 ARMRegisterInfo.cpp(685 B)
📄 ARMRegisterInfo.h(845 B)
📄 ARMRegisterInfo.td(24.53 KB)
📄 ARMSchedule.td(15.13 KB)
📄 ARMScheduleA57.td(62.61 KB)
📄 ARMScheduleA57WriteRes.td(11.43 KB)
📄 ARMScheduleA8.td(49.59 KB)
📄 ARMScheduleA9.td(130.35 KB)
📄 ARMScheduleM4.td(4.77 KB)
📄 ARMScheduleR52.td(44.27 KB)
📄 ARMScheduleSwift.td(50.53 KB)
📄 ARMScheduleV6.td(12.34 KB)
📄 ARMSelectionDAGInfo.cpp(9.21 KB)
📄 ARMSelectionDAGInfo.h(2.81 KB)
📄 ARMSubtarget.cpp(16.73 KB)
📄 ARMSubtarget.h(31.56 KB)
📄 ARMSystemRegister.td(5.42 KB)
📄 ARMTargetMachine.cpp(19.74 KB)
📄 ARMTargetMachine.h(3.48 KB)
📄 ARMTargetObjectFile.cpp(3.75 KB)
📄 ARMTargetObjectFile.h(1.67 KB)
📄 ARMTargetTransformInfo.cpp(63.49 KB)
📄 ARMTargetTransformInfo.h(10.22 KB)
📁 AsmParser
📁 Disassembler
📁 MCTargetDesc
📄 MLxExpansionPass.cpp(11.56 KB)
📄 MVEGatherScatterLowering.cpp(40.3 KB)
📄 MVETailPredication.cpp(23.2 KB)
📄 MVEVPTBlockPass.cpp(10.77 KB)
📄 MVEVPTOptimisationsPass.cpp(16.46 KB)
📁 TargetInfo
📄 Thumb1FrameLowering.cpp(39.45 KB)
📄 Thumb1FrameLowering.h(3.48 KB)
📄 Thumb1InstrInfo.cpp(5.73 KB)
📄 Thumb1InstrInfo.h(2.38 KB)
📄 Thumb2ITBlockPass.cpp(9.09 KB)
📄 Thumb2InstrInfo.cpp(26.43 KB)
📄 Thumb2InstrInfo.h(3.75 KB)
📄 Thumb2SizeReduction.cpp(40.25 KB)
📄 ThumbRegisterInfo.cpp(21.75 KB)
📄 ThumbRegisterInfo.h(2.44 KB)
📁 Utils

Editing: ARMConstantPoolValue.h

//===- ARMConstantPoolValue.h - ARM constantpool value ----------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file implements the ARM specific constantpool value class.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H
#define LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H

#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/iterator_range.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/Support/Casting.h"
#include <string>
#include <vector>

namespace llvm {

class BlockAddress;
class Constant;
class GlobalValue;
class GlobalVariable;
class LLVMContext;
class MachineBasicBlock;
class raw_ostream;
class Type;

namespace ARMCP {

enum ARMCPKind {
    CPValue,
    CPExtSymbol,
    CPBlockAddress,
    CPLSDA,
    CPMachineBasicBlock,
    CPPromotedGlobal
  };

enum ARMCPModifier {
    no_modifier, /// None
    TLSGD,       /// Thread Local Storage (General Dynamic Mode)
    GOT_PREL,    /// Global Offset Table, PC Relative
    GOTTPOFF,    /// Global Offset Table, Thread Pointer Offset
    TPOFF,       /// Thread Pointer Offset
    SECREL,      /// Section Relative (Windows TLS)
    SBREL,       /// Static Base Relative (RWPI)
  };

} // end namespace ARMCP

/// ARMConstantPoolValue - ARM specific constantpool value. This is used to
/// represent PC-relative displacement between the address of the load
/// instruction and the constant being loaded, i.e. (&GV-(LPIC+8)).
class ARMConstantPoolValue : public MachineConstantPoolValue {
  unsigned LabelId;        // Label id of the load.
  ARMCP::ARMCPKind Kind;   // Kind of constant.
  unsigned char PCAdjust;  // Extra adjustment if constantpool is pc-relative.
                           // 8 for ARM, 4 for Thumb.
  ARMCP::ARMCPModifier Modifier;   // GV modifier i.e. (&GV(modifier)-(LPIC+8))
  bool AddCurrentAddress;

protected:
  ARMConstantPoolValue(Type *Ty, unsigned id, ARMCP::ARMCPKind Kind,
                       unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
                       bool AddCurrentAddress);

ARMConstantPoolValue(LLVMContext &C, unsigned id, ARMCP::ARMCPKind Kind,
                       unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
                       bool AddCurrentAddress);

template <typename Derived>
  int getExistingMachineCPValueImpl(MachineConstantPool *CP, Align Alignment) {
    const std::vector<MachineConstantPoolEntry> &Constants = CP->getConstants();
    for (unsigned i = 0, e = Constants.size(); i != e; ++i) {
      if (Constants[i].isMachineConstantPoolEntry() &&
          Constants[i].getAlign() >= Alignment) {
        auto *CPV =
          static_cast<ARMConstantPoolValue*>(Constants[i].Val.MachineCPVal);
        if (Derived *APC = dyn_cast<Derived>(CPV))
          if (cast<Derived>(this)->equals(APC))
            return i;
      }
    }

return -1;
  }

public:
  ~ARMConstantPoolValue() override;

ARMCP::ARMCPModifier getModifier() const { return Modifier; }
  StringRef getModifierText() const;
  bool hasModifier() const { return Modifier != ARMCP::no_modifier; }

bool mustAddCurrentAddress() const { return AddCurrentAddress; }

unsigned getLabelId() const { return LabelId; }
  unsigned char getPCAdjustment() const { return PCAdjust; }

bool isGlobalValue() const { return Kind == ARMCP::CPValue; }
  bool isExtSymbol() const { return Kind == ARMCP::CPExtSymbol; }
  bool isBlockAddress() const { return Kind == ARMCP::CPBlockAddress; }
  bool isLSDA() const { return Kind == ARMCP::CPLSDA; }
  bool isMachineBasicBlock() const{ return Kind == ARMCP::CPMachineBasicBlock; }
  bool isPromotedGlobal() const{ return Kind == ARMCP::CPPromotedGlobal; }

int getExistingMachineCPValue(MachineConstantPool *CP,
                                Align Alignment) override;

void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;

/// hasSameValue - Return true if this ARM constpool value can share the same
  /// constantpool entry as another ARM constpool value.
  virtual bool hasSameValue(ARMConstantPoolValue *ACPV);

bool equals(const ARMConstantPoolValue *A) const {
    return this->LabelId == A->LabelId &&
      this->PCAdjust == A->PCAdjust &&
      this->Modifier == A->Modifier;
  }

void print(raw_ostream &O) const override;
  void print(raw_ostream *O) const { if (O) print(*O); }
  void dump() const;
};

inline raw_ostream &operator<<(raw_ostream &O, const ARMConstantPoolValue &V) {
  V.print(O);
  return O;
}

/// ARMConstantPoolConstant - ARM-specific constant pool values for Constants,
/// Functions, and BlockAddresses.
class ARMConstantPoolConstant : public ARMConstantPoolValue {
  const Constant *CVal;         // Constant being loaded.
  SmallPtrSet<const GlobalVariable*, 1> GVars;

ARMConstantPoolConstant(const Constant *C,
                          unsigned ID,
                          ARMCP::ARMCPKind Kind,
                          unsigned char PCAdj,
                          ARMCP::ARMCPModifier Modifier,
                          bool AddCurrentAddress);
  ARMConstantPoolConstant(Type *Ty, const Constant *C,
                          unsigned ID,
                          ARMCP::ARMCPKind Kind,
                          unsigned char PCAdj,
                          ARMCP::ARMCPModifier Modifier,
                          bool AddCurrentAddress);
  ARMConstantPoolConstant(const GlobalVariable *GV, const Constant *Init);

public:
  static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID);
  static ARMConstantPoolConstant *Create(const GlobalValue *GV,
                                         ARMCP::ARMCPModifier Modifier);
  static ARMConstantPoolConstant *Create(const GlobalVariable *GV,
                                         const Constant *Initializer);
  static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID,
                                         ARMCP::ARMCPKind Kind,
                                         unsigned char PCAdj);
  static ARMConstantPoolConstant *Create(const Constant *C, unsigned ID,
                                         ARMCP::ARMCPKind Kind,
                                         unsigned char PCAdj,
                                         ARMCP::ARMCPModifier Modifier,
                                         bool AddCurrentAddress);

const GlobalValue *getGV() const;
  const BlockAddress *getBlockAddress() const;

using promoted_iterator = SmallPtrSet<const GlobalVariable *, 1>::iterator;

iterator_range<promoted_iterator> promotedGlobals() {
    return iterator_range<promoted_iterator>(GVars.begin(), GVars.end());
  }

const Constant *getPromotedGlobalInit() const {
    return CVal;
  }

int getExistingMachineCPValue(MachineConstantPool *CP,
                                Align Alignment) override;

/// hasSameValue - Return true if this ARM constpool value can share the same
  /// constantpool entry as another ARM constpool value.
  bool hasSameValue(ARMConstantPoolValue *ACPV) override;

void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;

void print(raw_ostream &O) const override;

static bool classof(const ARMConstantPoolValue *APV) {
    return APV->isGlobalValue() || APV->isBlockAddress() || APV->isLSDA() ||
           APV->isPromotedGlobal();
  }

bool equals(const ARMConstantPoolConstant *A) const {
    return CVal == A->CVal && ARMConstantPoolValue::equals(A);
  }
};

/// ARMConstantPoolSymbol - ARM-specific constantpool values for external
/// symbols.
class ARMConstantPoolSymbol : public ARMConstantPoolValue {
  const std::string S;          // ExtSymbol being loaded.

ARMConstantPoolSymbol(LLVMContext &C, StringRef s, unsigned id,
                        unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
                        bool AddCurrentAddress);

public:
  static ARMConstantPoolSymbol *Create(LLVMContext &C, StringRef s, unsigned ID,
                                       unsigned char PCAdj);

StringRef getSymbol() const { return S; }

int getExistingMachineCPValue(MachineConstantPool *CP,
                                Align Alignment) override;

void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;

/// hasSameValue - Return true if this ARM constpool value can share the same
  /// constantpool entry as another ARM constpool value.
  bool hasSameValue(ARMConstantPoolValue *ACPV) override;

void print(raw_ostream &O) const override;

static bool classof(const ARMConstantPoolValue *ACPV) {
    return ACPV->isExtSymbol();
  }

bool equals(const ARMConstantPoolSymbol *A) const {
    return S == A->S && ARMConstantPoolValue::equals(A);
  }
};

/// ARMConstantPoolMBB - ARM-specific constantpool value of a machine basic
/// block.
class ARMConstantPoolMBB : public ARMConstantPoolValue {
  const MachineBasicBlock *MBB; // Machine basic block.

ARMConstantPoolMBB(LLVMContext &C, const MachineBasicBlock *mbb, unsigned id,
                     unsigned char PCAdj, ARMCP::ARMCPModifier Modifier,
                     bool AddCurrentAddress);

public:
  static ARMConstantPoolMBB *Create(LLVMContext &C,
                                    const MachineBasicBlock *mbb,
                                    unsigned ID, unsigned char PCAdj);

const MachineBasicBlock *getMBB() const { return MBB; }

int getExistingMachineCPValue(MachineConstantPool *CP,
                                Align Alignment) override;

void addSelectionDAGCSEId(FoldingSetNodeID &ID) override;

/// hasSameValue - Return true if this ARM constpool value can share the same
  /// constantpool entry as another ARM constpool value.
  bool hasSameValue(ARMConstantPoolValue *ACPV) override;

void print(raw_ostream &O) const override;

static bool classof(const ARMConstantPoolValue *ACPV) {
    return ACPV->isMachineBasicBlock();
  }

bool equals(const ARMConstantPoolMBB *A) const {
    return MBB == A->MBB && ARMConstantPoolValue::equals(A);
  }
};

} // end namespace llvm

#endif // LLVM_LIB_TARGET_ARM_ARMCONSTANTPOOLVALUE_H

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