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d357e2b7ab
MaterializationResponsibility. VModuleKeys are intended to enable selective removal of modules from a JIT session, however for a wide variety of use cases selective removal is not needed and introduces unnecessary overhead. As of this commit, the default constructed VModuleKey value is reserved as a "do not track" value, and becomes the default when adding a new module to the JIT. This commit also changes the propagation of VModuleKeys. They were passed alongside the MaterializationResponsibity instance in XXLayer::emit methods, but are now propagated as part of the MaterializationResponsibility instance itself (and as part of MaterializationUnit when stored in a JITDylib). Associating VModuleKeys with MaterializationUnits in this way should allow for a thread-safe module removal mechanism in the future, even when a module is in the process of being compiled, by having the MaterializationResponsibility object check in on its VModuleKey's state before commiting its results to the JITDylib. llvm-svn: 344643
35 lines
1.2 KiB
C++
35 lines
1.2 KiB
C++
//===---------- ObjectTransformLayer.cpp - Object Transform Layer ---------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Orc/ObjectTransformLayer.h"
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#include "llvm/Support/MemoryBuffer.h"
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namespace llvm {
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namespace orc {
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ObjectTransformLayer::ObjectTransformLayer(ExecutionSession &ES,
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ObjectLayer &BaseLayer,
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TransformFunction Transform)
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: ObjectLayer(ES), BaseLayer(BaseLayer), Transform(std::move(Transform)) {}
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void ObjectTransformLayer::emit(MaterializationResponsibility R,
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std::unique_ptr<MemoryBuffer> O) {
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assert(O && "Module must not be null");
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if (auto TransformedObj = Transform(std::move(O)))
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BaseLayer.emit(std::move(R), std::move(*TransformedObj));
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else {
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R.failMaterialization();
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getExecutionSession().reportError(TransformedObj.takeError());
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}
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}
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} // End namespace orc.
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} // End namespace llvm.
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