clang/lib/Interpreter/IncrementalExecutor.h

   1 //===--- IncrementalExecutor.h - Incremental Execution ----------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file implements the class which performs incremental code execution.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H
  14 #define LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H
  15
  16 #include "llvm/ADT/DenseMap.h"
  17 #include "llvm/ADT/StringRef.h"
  18 #include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
  19 #include "llvm/ExecutionEngine/Orc/Shared/ExecutorAddress.h"
  20
  21 #include <memory>
  22
  23 namespace llvm {
  24 class Error;
  25 namespace orc {
  26 class JITTargetMachineBuilder;
  27 class LLJIT;
  28 class LLJITBuilder;
  29 class ThreadSafeContext;
  30 } // namespace orc
  31 } // namespace llvm
  32
  33 namespace clang {
  34
  35 struct PartialTranslationUnit;
  36 class TargetInfo;
  37
  38 class IncrementalExecutor {
  39   using CtorDtorIterator = llvm::orc::CtorDtorIterator;
  40   std::unique_ptr<llvm::orc::LLJIT> Jit;
  41   llvm::orc::ThreadSafeContext &TSCtx;
  42
  43   llvm::DenseMap<const PartialTranslationUnit *, llvm::orc::ResourceTrackerSP>
  44       ResourceTrackers;
  45
  46 protected:
  47   IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC);
  48
  49 public:
  50   enum SymbolNameKind { IRName, LinkerName };
  51
  52   IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC,
  53                       llvm::orc::LLJITBuilder &JITBuilder, llvm::Error &Err);
  54   virtual ~IncrementalExecutor();
  55
  56   virtual llvm::Error addModule(PartialTranslationUnit &PTU);
  57   virtual llvm::Error removeModule(PartialTranslationUnit &PTU);
  58   virtual llvm::Error runCtors() const;
  59   virtual llvm::Error cleanUp();
  60   llvm::Expected<llvm::orc::ExecutorAddr>
  61   getSymbolAddress(llvm::StringRef Name, SymbolNameKind NameKind) const;
  62
  63   llvm::orc::LLJIT &GetExecutionEngine() { return *Jit; }
  64
  65   static llvm::Expected<std::unique_ptr<llvm::orc::LLJITBuilder>>
  66   createDefaultJITBuilder(llvm::orc::JITTargetMachineBuilder JTMB);
  67 };
  68
  69 } // end namespace clang
  70
  71 #endif // LLVM_CLANG_LIB_INTERPRETER_INCREMENTALEXECUTOR_H