llvm/unittests/ExecutionEngine/Orc/LazyEmittingLayerTest.cpp
Lang Hames 35ca32d346 [ORC] Start migrating ORC layers to use the new ORC Core.h APIs.
In particular this patch switches RTDyldObjectLinkingLayer to use
orc::SymbolResolver and threads the requried changse (ExecutionSession
references and VModuleKeys) through the existing layer APIs.

The purpose of the new resolver interface is to improve query performance and
better support parallelism, both in JIT'd code and within the compiler itself.

The most visibile change is switch of the <Layer>::addModule signatures from:

Expected<Handle> addModule(std::shared_ptr<ModuleType> Mod,
                           std::shared_ptr<JITSymbolResolver> Resolver)

to:

Expected<Handle> addModule(VModuleKey K, std::shared_ptr<ModuleType> Mod);

Typical usage of addModule will now look like:

auto K = ES.allocateVModuleKey();
Resolvers[K] = createSymbolResolver(...);
Layer.addModule(K, std::move(Mod));

See the BuildingAJIT tutorial code for example usage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@324405 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-06 21:25:11 +00:00

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//===- LazyEmittingLayerTest.cpp - Unit tests for the lazy emitting layer -===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ExecutionEngine/Orc/LazyEmittingLayer.h"
#include "llvm/ExecutionEngine/RuntimeDyld.h"
#include "gtest/gtest.h"
namespace {
struct MockBaseLayer {
typedef int ModuleHandleT;
ModuleHandleT addModule(llvm::orc::VModuleKey,
std::shared_ptr<llvm::Module>) {
return 42;
}
};
TEST(LazyEmittingLayerTest, Empty) {
MockBaseLayer M;
llvm::orc::LazyEmittingLayer<MockBaseLayer> L(M);
cantFail(
L.addModule(llvm::orc::VModuleKey(), std::unique_ptr<llvm::Module>()));
}
}