//===- SPIRVLowerLLVMIntrinsic.h - llvm-intrinsic lowering  --------*- C++
//-*-===//
//
//                     The LLVM/SPIR-V Translator
//
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//===----------------------------------------------------------------------===//

#ifndef SPIRV_SPIRVLOWERLLVMINTRINSIC_H
#define SPIRV_SPIRVLOWERLLVMINTRINSIC_H

#include "LLVMSPIRVOpts.h"

#include "llvm/IR/InstVisitor.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"

namespace SPIRV {

class SPIRVLowerLLVMIntrinsicBase
    : public llvm::InstVisitor<SPIRVLowerLLVMIntrinsicBase> {
public:
  SPIRVLowerLLVMIntrinsicBase(const SPIRV::TranslatorOpts &Opts)
      : Context(nullptr), Mod(nullptr), Opts(Opts) {}
  virtual ~SPIRVLowerLLVMIntrinsicBase() {}
  virtual void visitIntrinsicInst(llvm::CallInst &I);

  bool runLowerLLVMIntrinsic(llvm::Module &M);

private:
  llvm::LLVMContext *Context;
  llvm::Module *Mod;
  const SPIRV::TranslatorOpts Opts;
  bool TheModuleIsModified = false;
};

class SPIRVLowerLLVMIntrinsicPass
    : public llvm::PassInfoMixin<SPIRVLowerLLVMIntrinsicPass>,
      public SPIRVLowerLLVMIntrinsicBase {
public:
  SPIRVLowerLLVMIntrinsicPass(const SPIRV::TranslatorOpts &Opts);
  llvm::PreservedAnalyses run(llvm::Module &M,
                              llvm::ModuleAnalysisManager &MAM);

  static bool isRequired() { return true; }
};

class SPIRVLowerLLVMIntrinsicLegacy : public llvm::ModulePass,
                                      public SPIRVLowerLLVMIntrinsicBase {
public:
  SPIRVLowerLLVMIntrinsicLegacy(const SPIRV::TranslatorOpts &Opts);

  bool runOnModule(llvm::Module &M) override;

  static char ID;
};

} // namespace SPIRV

#endif // SPIRV_SPIRVLOWERLLVMINTRINSIC_H