LCOV - code coverage report
Current view: top level - include/llvm/ExecutionEngine/Orc - IRCompileLayer.h (source / functions) Hit Total Coverage
Test: llvm-toolchain.info Lines: 8 8 100.0 %
Date: 2017-09-14 15:23:50 Functions: 1 2 50.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : //===- IRCompileLayer.h -- Eagerly compile IR for JIT -----------*- C++ -*-===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===----------------------------------------------------------------------===//
       9             : //
      10             : // Contains the definition for a basic, eagerly compiling layer of the JIT.
      11             : //
      12             : //===----------------------------------------------------------------------===//
      13             : 
      14             : #ifndef LLVM_EXECUTIONENGINE_ORC_IRCOMPILELAYER_H
      15             : #define LLVM_EXECUTIONENGINE_ORC_IRCOMPILELAYER_H
      16             : 
      17             : #include "llvm/ADT/STLExtras.h"
      18             : #include "llvm/ExecutionEngine/JITSymbol.h"
      19             : #include "llvm/Support/Error.h"
      20             : #include <memory>
      21             : #include <string>
      22             : 
      23             : namespace llvm {
      24             : 
      25             : class Module;
      26             : 
      27             : namespace orc {
      28             : 
      29             : /// @brief Eager IR compiling layer.
      30             : ///
      31             : ///   This layer immediately compiles each IR module added via addModule to an
      32             : /// object file and adds this module file to the layer below, which must
      33             : /// implement the object layer concept.
      34             : template <typename BaseLayerT, typename CompileFtor>
      35             : class IRCompileLayer {
      36             : public:
      37             : 
      38             :   /// @brief Handle to a compiled module.
      39             :   using ModuleHandleT = typename BaseLayerT::ObjHandleT;
      40             : 
      41             :   /// @brief Construct an IRCompileLayer with the given BaseLayer, which must
      42             :   ///        implement the ObjectLayer concept.
      43          99 :   IRCompileLayer(BaseLayerT &BaseLayer, CompileFtor Compile)
      44          99 :       : BaseLayer(BaseLayer), Compile(std::move(Compile)) {}
      45             : 
      46             :   /// @brief Get a reference to the compiler functor.
      47             :   CompileFtor& getCompiler() { return Compile; }
      48             : 
      49             :   /// @brief Compile the module, and add the resulting object to the base layer
      50             :   ///        along with the given memory manager and symbol resolver.
      51             :   ///
      52             :   /// @return A handle for the added module.
      53             :   Expected<ModuleHandleT>
      54         123 :   addModule(std::shared_ptr<Module> M,
      55             :             std::shared_ptr<JITSymbolResolver> Resolver) {
      56             :     using CompileResult = decltype(Compile(*M));
      57         492 :     auto Obj = std::make_shared<CompileResult>(Compile(*M));
      58         738 :     return BaseLayer.addObject(std::move(Obj), std::move(Resolver));
      59             :   }
      60             : 
      61             :   /// @brief Remove the module associated with the handle H.
      62             :   Error removeModule(ModuleHandleT H) {
      63          44 :     return BaseLayer.removeObject(H);
      64             :   }
      65             : 
      66             :   /// @brief Search for the given named symbol.
      67             :   /// @param Name The name of the symbol to search for.
      68             :   /// @param ExportedSymbolsOnly If true, search only for exported symbols.
      69             :   /// @return A handle for the given named symbol, if it exists.
      70             :   JITSymbol findSymbol(const std::string &Name, bool ExportedSymbolsOnly) {
      71         618 :     return BaseLayer.findSymbol(Name, ExportedSymbolsOnly);
      72             :   }
      73             : 
      74             :   /// @brief Get the address of the given symbol in compiled module represented
      75             :   ///        by the handle H. This call is forwarded to the base layer's
      76             :   ///        implementation.
      77             :   /// @param H The handle for the module to search in.
      78             :   /// @param Name The name of the symbol to search for.
      79             :   /// @param ExportedSymbolsOnly If true, search only for exported symbols.
      80             :   /// @return A handle for the given named symbol, if it is found in the
      81             :   ///         given module.
      82             :   JITSymbol findSymbolIn(ModuleHandleT H, const std::string &Name,
      83             :                          bool ExportedSymbolsOnly) {
      84         897 :     return BaseLayer.findSymbolIn(H, Name, ExportedSymbolsOnly);
      85             :   }
      86             : 
      87             :   /// @brief Immediately emit and finalize the module represented by the given
      88             :   ///        handle.
      89             :   /// @param H Handle for module to emit/finalize.
      90             :   Error emitAndFinalize(ModuleHandleT H) {
      91             :     return BaseLayer.emitAndFinalize(H);
      92             :   }
      93             : 
      94             : private:
      95             :   BaseLayerT &BaseLayer;
      96             :   CompileFtor Compile;
      97             : };
      98             : 
      99             : } // end namespace orc
     100             : 
     101             : } // end namespace llvm
     102             : 
     103             : #endif // LLVM_EXECUTIONENGINE_ORC_IRCOMPILINGLAYER_H

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