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📄 AbstractCallSite.h(9.5 KB)
📄 Argument.h(5.03 KB)
📄 AssemblyAnnotationWriter.h(2.2 KB)
📄 Attributes.h(35.5 KB)
📄 Attributes.td(8.96 KB)
📄 AutoUpgrade.h(3.96 KB)
📄 BasicBlock.h(21.91 KB)
📄 CFG.h(13.84 KB)
📄 CallingConv.h(9.27 KB)
📄 Comdat.h(2.16 KB)
📄 Constant.h(8.33 KB)
📄 ConstantFolder.h(10.01 KB)
📄 ConstantRange.h(21.6 KB)
📄 Constants.h(53.03 KB)
📄 ConstrainedOps.def(5.4 KB)
📄 DIBuilder.h(44.36 KB)
📄 DataLayout.h(24.11 KB)
📄 DebugInfo.h(5.42 KB)
📄 DebugInfoFlags.def(3.62 KB)
📄 DebugInfoMetadata.h(132.91 KB)
📄 DebugLoc.h(4.57 KB)
📄 DerivedTypes.h(26.81 KB)
📄 DerivedUser.h(1.32 KB)
📄 DiagnosticHandler.h(2.89 KB)
📄 DiagnosticInfo.h(41.02 KB)
📄 DiagnosticPrinter.h(3.46 KB)
📄 Dominators.h(9.94 KB)
📄 FPEnv.h(1.97 KB)
📄 FixedMetadataKinds.def(2.05 KB)
📄 Function.h(31.39 KB)
📄 GVMaterializer.h(1.45 KB)
📄 GetElementPtrTypeIterator.h(5.54 KB)
📄 GlobalAlias.h(3.16 KB)
📄 GlobalIFunc.h(2.51 KB)
📄 GlobalIndirectSymbol.h(3.11 KB)
📄 GlobalObject.h(7.39 KB)
📄 GlobalValue.h(21.2 KB)
📄 GlobalVariable.h(9.6 KB)
📄 IRBuilder.h(105.58 KB)
📄 IRBuilderFolder.h(7.1 KB)
📄 IRPrintingPasses.h(3.57 KB)
📄 InlineAsm.h(15.84 KB)
📄 InstIterator.h(5.06 KB)
📄 InstVisitor.h(13.95 KB)
📄 InstrTypes.h(86.25 KB)
📄 Instruction.def(8.53 KB)
📄 Instruction.h(30.74 KB)
📄 Instructions.h(195.68 KB)
📄 IntrinsicInst.h(29.03 KB)
📄 Intrinsics.h(8.21 KB)
📄 Intrinsics.td(78.88 KB)
📄 IntrinsicsAArch64.td(100.59 KB)
📄 IntrinsicsAMDGPU.td(80.43 KB)
📄 IntrinsicsARM.td(65.15 KB)
📄 IntrinsicsBPF.td(1.54 KB)
📄 IntrinsicsHexagon.td(11.53 KB)
📄 IntrinsicsHexagonDep.td(197.38 KB)
📄 IntrinsicsMips.td(94.94 KB)
📄 IntrinsicsNVVM.td(193.97 KB)
📄 IntrinsicsPowerPC.td(68.23 KB)
📄 IntrinsicsRISCV.td(3.24 KB)
📄 IntrinsicsSystemZ.td(18.56 KB)
📄 IntrinsicsWebAssembly.td(9.38 KB)
📄 IntrinsicsX86.td(242.99 KB)
📄 IntrinsicsXCore.td(6.83 KB)
📄 LLVMContext.h(14.18 KB)
📄 LLVMRemarkStreamer.h(3.36 KB)
📄 LegacyPassManager.h(3.11 KB)
📄 LegacyPassManagers.h(18.17 KB)
📄 LegacyPassNameParser.h(3.73 KB)
📄 MDBuilder.h(8.65 KB)
📄 Mangler.h(2.06 KB)
📄 MatrixBuilder.h(8.81 KB)
📄 Metadata.def(5.07 KB)
📄 Metadata.h(45.24 KB)
📄 Module.h(34.6 KB)
📄 ModuleSlotTracker.h(2.56 KB)
📄 ModuleSummaryIndex.h(58.12 KB)
📄 ModuleSummaryIndexYAML.h(10.93 KB)
📄 NoFolder.h(11.32 KB)
📄 OperandTraits.h(5.78 KB)
📄 Operator.h(19.58 KB)
📄 OptBisect.h(2.79 KB)
📄 PassInstrumentation.h(8.05 KB)
📄 PassManager.h(54.18 KB)
📄 PassManagerImpl.h(5.76 KB)
📄 PassManagerInternal.h(11.9 KB)
📄 PassTimingInfo.h(3.65 KB)
📄 PatternMatch.h(73.41 KB)
📄 PredIteratorCache.h(2.59 KB)
📄 ProfileSummary.h(4.34 KB)
📄 RuntimeLibcalls.def(24.52 KB)
📄 SafepointIRVerifier.h(1.63 KB)
📄 Statepoint.h(13.61 KB)
📄 SymbolTableListTraits.h(4.45 KB)
📄 TrackingMDRef.h(4.5 KB)
📄 Type.h(18.98 KB)
📄 TypeFinder.h(2.57 KB)
📄 Use.h(3.75 KB)
📄 UseListOrder.h(1.18 KB)
📄 User.h(11.75 KB)
📄 VPIntrinsics.def(2.34 KB)
📄 Value.def(3.62 KB)
📄 Value.h(32.16 KB)
📄 ValueHandle.h(18.11 KB)
📄 ValueMap.h(14.09 KB)
📄 ValueSymbolTable.h(4.22 KB)
📄 Verifier.h(5.47 KB)

Editing: NoFolder.h

//===- NoFolder.h - Constant folding helper ---------------------*- 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 defines the NoFolder class, a helper for IRBuilder.  It provides
// IRBuilder with a set of methods for creating unfolded constants.  This is
// useful for learners trying to understand how LLVM IR works, and who don't
// want details to be hidden by the constant folder.  For general constant
// creation and folding, use ConstantExpr and the routines in
// llvm/Analysis/ConstantFolding.h.
//
// Note: since it is not actually possible to create unfolded constants, this
// class returns instructions rather than constants.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_IR_NOFOLDER_H
#define LLVM_IR_NOFOLDER_H

#include "llvm/ADT/ArrayRef.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IRBuilderFolder.h"

namespace llvm {

/// NoFolder - Create "constants" (actually, instructions) with no folding.
class NoFolder final : public IRBuilderFolder {
  virtual void anchor();

public:
  explicit NoFolder() = default;

//===--------------------------------------------------------------------===//
  // Binary Operators
  //===--------------------------------------------------------------------===//

Instruction *CreateAdd(Constant *LHS, Constant *RHS,
                         bool HasNUW = false,
                         bool HasNSW = false) const override {
    BinaryOperator *BO = BinaryOperator::CreateAdd(LHS, RHS);
    if (HasNUW) BO->setHasNoUnsignedWrap();
    if (HasNSW) BO->setHasNoSignedWrap();
    return BO;
  }

Instruction *CreateFAdd(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateFAdd(LHS, RHS);
  }

Instruction *CreateSub(Constant *LHS, Constant *RHS,
                         bool HasNUW = false,
                         bool HasNSW = false) const override {
    BinaryOperator *BO = BinaryOperator::CreateSub(LHS, RHS);
    if (HasNUW) BO->setHasNoUnsignedWrap();
    if (HasNSW) BO->setHasNoSignedWrap();
    return BO;
  }

Instruction *CreateFSub(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateFSub(LHS, RHS);
  }

Instruction *CreateMul(Constant *LHS, Constant *RHS,
                         bool HasNUW = false,
                         bool HasNSW = false) const override {
    BinaryOperator *BO = BinaryOperator::CreateMul(LHS, RHS);
    if (HasNUW) BO->setHasNoUnsignedWrap();
    if (HasNSW) BO->setHasNoSignedWrap();
    return BO;
  }

Instruction *CreateFMul(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateFMul(LHS, RHS);
  }

Instruction *CreateUDiv(Constant *LHS, Constant *RHS,
                          bool isExact = false) const override {
    if (!isExact)
      return BinaryOperator::CreateUDiv(LHS, RHS);
    return BinaryOperator::CreateExactUDiv(LHS, RHS);
  }

Instruction *CreateSDiv(Constant *LHS, Constant *RHS,
                          bool isExact = false) const override {
    if (!isExact)
      return BinaryOperator::CreateSDiv(LHS, RHS);
    return BinaryOperator::CreateExactSDiv(LHS, RHS);
  }

Instruction *CreateFDiv(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateFDiv(LHS, RHS);
  }

Instruction *CreateURem(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateURem(LHS, RHS);
  }

Instruction *CreateSRem(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateSRem(LHS, RHS);
  }

Instruction *CreateFRem(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateFRem(LHS, RHS);
  }

Instruction *CreateShl(Constant *LHS, Constant *RHS, bool HasNUW = false,
                         bool HasNSW = false) const override {
    BinaryOperator *BO = BinaryOperator::CreateShl(LHS, RHS);
    if (HasNUW) BO->setHasNoUnsignedWrap();
    if (HasNSW) BO->setHasNoSignedWrap();
    return BO;
  }

Instruction *CreateLShr(Constant *LHS, Constant *RHS,
                          bool isExact = false) const override {
    if (!isExact)
      return BinaryOperator::CreateLShr(LHS, RHS);
    return BinaryOperator::CreateExactLShr(LHS, RHS);
  }

Instruction *CreateAShr(Constant *LHS, Constant *RHS,
                          bool isExact = false) const override {
    if (!isExact)
      return BinaryOperator::CreateAShr(LHS, RHS);
    return BinaryOperator::CreateExactAShr(LHS, RHS);
  }

Instruction *CreateAnd(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateAnd(LHS, RHS);
  }

Instruction *CreateOr(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateOr(LHS, RHS);
  }

Instruction *CreateXor(Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::CreateXor(LHS, RHS);
  }

Instruction *CreateBinOp(Instruction::BinaryOps Opc,
                           Constant *LHS, Constant *RHS) const override {
    return BinaryOperator::Create(Opc, LHS, RHS);
  }

//===--------------------------------------------------------------------===//
  // Unary Operators
  //===--------------------------------------------------------------------===//

Instruction *CreateNeg(Constant *C,
                         bool HasNUW = false,
                         bool HasNSW = false) const override {
    BinaryOperator *BO = BinaryOperator::CreateNeg(C);
    if (HasNUW) BO->setHasNoUnsignedWrap();
    if (HasNSW) BO->setHasNoSignedWrap();
    return BO;
  }

Instruction *CreateFNeg(Constant *C) const override {
    return UnaryOperator::CreateFNeg(C);
  }

Instruction *CreateNot(Constant *C) const override {
    return BinaryOperator::CreateNot(C);
  }

Instruction *CreateUnOp(Instruction::UnaryOps Opc,
                          Constant *C) const override {
    return UnaryOperator::Create(Opc, C);
  }

//===--------------------------------------------------------------------===//
  // Memory Instructions
  //===--------------------------------------------------------------------===//

Constant *CreateGetElementPtr(Type *Ty, Constant *C,
                                ArrayRef<Constant *> IdxList) const override {
    return ConstantExpr::getGetElementPtr(Ty, C, IdxList);
  }

Constant *CreateGetElementPtr(Type *Ty, Constant *C,
                                Constant *Idx) const override {
    // This form of the function only exists to avoid ambiguous overload
    // warnings about whether to convert Idx to ArrayRef<Constant *> or
    // ArrayRef<Value *>.
    return ConstantExpr::getGetElementPtr(Ty, C, Idx);
  }

Instruction *CreateGetElementPtr(Type *Ty, Constant *C,
                                   ArrayRef<Value *> IdxList) const override {
    return GetElementPtrInst::Create(Ty, C, IdxList);
  }

Constant *CreateInBoundsGetElementPtr(
      Type *Ty, Constant *C, ArrayRef<Constant *> IdxList) const override {
    return ConstantExpr::getInBoundsGetElementPtr(Ty, C, IdxList);
  }

Constant *CreateInBoundsGetElementPtr(Type *Ty, Constant *C,
                                        Constant *Idx) const override {
    // This form of the function only exists to avoid ambiguous overload
    // warnings about whether to convert Idx to ArrayRef<Constant *> or
    // ArrayRef<Value *>.
    return ConstantExpr::getInBoundsGetElementPtr(Ty, C, Idx);
  }

Instruction *CreateInBoundsGetElementPtr(
      Type *Ty, Constant *C, ArrayRef<Value *> IdxList) const override {
    return GetElementPtrInst::CreateInBounds(Ty, C, IdxList);
  }

//===--------------------------------------------------------------------===//
  // Cast/Conversion Operators
  //===--------------------------------------------------------------------===//

Instruction *CreateCast(Instruction::CastOps Op, Constant *C,
                          Type *DestTy) const override {
    return CastInst::Create(Op, C, DestTy);
  }

Instruction *CreatePointerCast(Constant *C, Type *DestTy) const override {
    return CastInst::CreatePointerCast(C, DestTy);
  }

Instruction *CreatePointerBitCastOrAddrSpaceCast(
      Constant *C, Type *DestTy) const override {
    return CastInst::CreatePointerBitCastOrAddrSpaceCast(C, DestTy);
  }

Instruction *CreateIntCast(Constant *C, Type *DestTy,
                             bool isSigned) const override {
    return CastInst::CreateIntegerCast(C, DestTy, isSigned);
  }

Instruction *CreateFPCast(Constant *C, Type *DestTy) const override {
    return CastInst::CreateFPCast(C, DestTy);
  }

Instruction *CreateBitCast(Constant *C, Type *DestTy) const override {
    return CreateCast(Instruction::BitCast, C, DestTy);
  }

Instruction *CreateIntToPtr(Constant *C, Type *DestTy) const override {
    return CreateCast(Instruction::IntToPtr, C, DestTy);
  }

Instruction *CreatePtrToInt(Constant *C, Type *DestTy) const override {
    return CreateCast(Instruction::PtrToInt, C, DestTy);
  }

Instruction *CreateZExtOrBitCast(Constant *C, Type *DestTy) const override {
    return CastInst::CreateZExtOrBitCast(C, DestTy);
  }

Instruction *CreateSExtOrBitCast(Constant *C, Type *DestTy) const override {
    return CastInst::CreateSExtOrBitCast(C, DestTy);
  }

Instruction *CreateTruncOrBitCast(Constant *C, Type *DestTy) const override {
    return CastInst::CreateTruncOrBitCast(C, DestTy);
  }

//===--------------------------------------------------------------------===//
  // Compare Instructions
  //===--------------------------------------------------------------------===//

Instruction *CreateICmp(CmpInst::Predicate P,
                          Constant *LHS, Constant *RHS) const override {
    return new ICmpInst(P, LHS, RHS);
  }

Instruction *CreateFCmp(CmpInst::Predicate P,
                          Constant *LHS, Constant *RHS) const override {
    return new FCmpInst(P, LHS, RHS);
  }

//===--------------------------------------------------------------------===//
  // Other Instructions
  //===--------------------------------------------------------------------===//

Instruction *CreateSelect(Constant *C,
                            Constant *True, Constant *False) const override {
    return SelectInst::Create(C, True, False);
  }

Instruction *CreateExtractElement(Constant *Vec,
                                    Constant *Idx) const override {
    return ExtractElementInst::Create(Vec, Idx);
  }

Instruction *CreateInsertElement(Constant *Vec, Constant *NewElt,
                                   Constant *Idx) const override {
    return InsertElementInst::Create(Vec, NewElt, Idx);
  }

Instruction *CreateShuffleVector(Constant *V1, Constant *V2,
                                   ArrayRef<int> Mask) const override {
    return new ShuffleVectorInst(V1, V2, Mask);
  }

Instruction *CreateExtractValue(Constant *Agg,
                                  ArrayRef<unsigned> IdxList) const override {
    return ExtractValueInst::Create(Agg, IdxList);
  }

Instruction *CreateInsertValue(Constant *Agg, Constant *Val,
                                 ArrayRef<unsigned> IdxList) const override {
    return InsertValueInst::Create(Agg, Val, IdxList);
  }
};

} // end namespace llvm

#endif // LLVM_IR_NOFOLDER_H

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