BPF.h

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//===-- BPF.h - Top-level interface for BPF representation ------*- 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_BPF_BPF_H
#define LLVM_LIB_TARGET_BPF_BPF_H
 
#include "MCTargetDesc/BPFMCTargetDesc.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/IR/Analysis.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
#include "llvm/Target/TargetMachine.h"
 
namespace llvm {
class BPFRegisterBankInfo;
class BPFSubtarget;
class BPFTargetMachine;
class InstructionSelector;
class PassRegistry;
 
#define BPF_TRAP "__bpf_trap"
 
ModulePass *createBPFCheckAndAdjustIR();
 
class BPFISelDAGToDAGPass : public SelectionDAGISelPass {
public:
  BPFISelDAGToDAGPass(BPFTargetMachine &TM);
};
 
FunctionPass *createBPFISelDag(BPFTargetMachine &TM);
FunctionPass *createBPFMISimplifyPatchablePass();
FunctionPass *createBPFMIPeepholePass();
FunctionPass *createBPFMIPreEmitPeepholePass();
FunctionPass *createBPFMIPreEmitCheckingPass();
 
InstructionSelector *createBPFInstructionSelector(const BPFTargetMachine &,
                                                  const BPFSubtarget &,
                                                  const BPFRegisterBankInfo &);
 
void initializeBPFAsmPrinterPass(PassRegistry &);
void initializeBPFCheckAndAdjustIRPass(PassRegistry&);
void initializeBPFDAGToDAGISelLegacyPass(PassRegistry &);
void initializeBPFMIPeepholePass(PassRegistry &);
void initializeBPFMIPreEmitCheckingPass(PassRegistry &);
void initializeBPFMIPreEmitPeepholePass(PassRegistry &);
void initializeBPFMISimplifyPatchablePass(PassRegistry &);
 
class BPFAbstractMemberAccessPass
    : public RequiredPassInfoMixin<BPFAbstractMemberAccessPass> {
  BPFTargetMachine *TM;
 
public:
  BPFAbstractMemberAccessPass(BPFTargetMachine *TM) : TM(TM) {}
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
 
class BPFPreserveDITypePass
    : public RequiredPassInfoMixin<BPFPreserveDITypePass> {
public:
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
 
class BPFIRPeepholePass : public RequiredPassInfoMixin<BPFIRPeepholePass> {
public:
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
 
class BPFASpaceCastSimplifyPass
    : public RequiredPassInfoMixin<BPFASpaceCastSimplifyPass> {
public:
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
};
 
class BPFAdjustOptPass : public OptionalPassInfoMixin<BPFAdjustOptPass> {
public:
  PreservedAnalyses run(Module &M, ModuleAnalysisManager &AM);
};
 
class BPFPreserveStaticOffsetPass
    : public RequiredPassInfoMixin<BPFPreserveStaticOffsetPass> {
  bool AllowPartial;
 
public:
  BPFPreserveStaticOffsetPass(bool AllowPartial) : AllowPartial(AllowPartial) {}
  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
 
  static std::pair<GetElementPtrInst *, LoadInst *>
  reconstructLoad(CallInst *Call);
 
  static std::pair<GetElementPtrInst *, StoreInst *>
  reconstructStore(CallInst *Call);
};
 
} // namespace llvm
 
#endif