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//===----- IRTransformLayer.h - Run all IR through a functor ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Run all IR passed in through a user supplied functor.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_IRTRANSFORMLAYER_H
#define LLVM_EXECUTIONENGINE_ORC_IRTRANSFORMLAYER_H
#include "JITSymbol.h"
namespace llvm {
namespace orc {
/// @brief IR mutating layer.
///
/// This layer accepts sets of LLVM IR Modules (via addModuleSet). It
/// immediately applies the user supplied functor to each module, then adds
/// the set of transformed modules to the layer below.
template <typename BaseLayerT, typename TransformFtor>
class IRTransformLayer {
public:
/// @brief Handle to a set of added modules.
typedef typename BaseLayerT::ModuleSetHandleT ModuleSetHandleT;
/// @brief Construct an IRTransformLayer with the given BaseLayer
IRTransformLayer(BaseLayerT &BaseLayer,
TransformFtor Transform = TransformFtor())
: BaseLayer(BaseLayer), Transform(std::move(Transform)) {}
/// @brief Apply the transform functor to each module in the module set, then
/// add the resulting set of modules to the base layer, along with the
/// memory manager and symbol resolver.
///
/// @return A handle for the added modules.
template <typename ModuleSetT, typename MemoryManagerPtrT,
typename SymbolResolverPtrT>
ModuleSetHandleT addModuleSet(ModuleSetT Ms,
MemoryManagerPtrT MemMgr,
SymbolResolverPtrT Resolver) {
for (auto I = Ms.begin(), E = Ms.end(); I != E; ++I)
*I = Transform(std::move(*I));
return BaseLayer.addModuleSet(std::move(Ms), std::move(MemMgr),
std::move(Resolver));
}
/// @brief Remove the module set associated with the handle H.
void removeModuleSet(ModuleSetHandleT H) { BaseLayer.removeModuleSet(H); }
/// @brief Search for the given named symbol.
/// @param Name The name of the symbol to search for.
/// @param ExportedSymbolsOnly If true, search only for exported symbols.
/// @return A handle for the given named symbol, if it exists.
JITSymbol findSymbol(const std::string &Name, bool ExportedSymbolsOnly) {
return BaseLayer.findSymbol(Name, ExportedSymbolsOnly);
}
/// @brief Get the address of the given symbol in the context of the set of
/// modules represented by the handle H. This call is forwarded to the
/// base layer's implementation.
/// @param H The handle for the module set to search in.
/// @param Name The name of the symbol to search for.
/// @param ExportedSymbolsOnly If true, search only for exported symbols.
/// @return A handle for the given named symbol, if it is found in the
/// given module set.
JITSymbol findSymbolIn(ModuleSetHandleT H, const std::string &Name,
bool ExportedSymbolsOnly) {
return BaseLayer.findSymbolIn(H, Name, ExportedSymbolsOnly);
}
/// @brief Immediately emit and finalize the module set represented by the
/// given handle.
/// @param H Handle for module set to emit/finalize.
void emitAndFinalize(ModuleSetHandleT H) {
BaseLayer.emitAndFinalize(H);
}
/// @brief Access the transform functor directly.
TransformFtor& getTransform() { return Transform; }
/// @brief Access the mumate functor directly.
const TransformFtor& getTransform() const { return Transform; }
private:
BaseLayerT &BaseLayer;
TransformFtor Transform;
};
} // End namespace orc.
} // End namespace llvm.
#endif // LLVM_EXECUTIONENGINE_ORC_IRTRANSFORMLAYER_H
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