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https://github.com/capstone-engine/llvm-capstone.git
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ce2207abaf
This commit adds a ManglingOptions struct to IRMaterializationUnit, and replaces IRCompileLayer::CompileFunction with a new IRCompileLayer::IRCompiler class. The ManglingOptions struct defines the emulated-TLS state (via a bool member, EmulatedTLS, which is true if emulated-TLS is enabled and false otherwise). The IRCompileLayer::IRCompiler class wraps an IRCompiler (the same way that the CompileFunction typedef used to), but adds a method to return the IRCompileLayer::ManglingOptions that the compiler will use. These changes allow us to correctly determine the symbols that will be produced when a thread local global variable defined at the IR level is compiled with or without emulated TLS. This is required for ORCv2, where MaterializationUnits must declare their interface up-front. Most ORCv2 clients should not require any changes. Clients writing custom IR compilers will need to wrap their compiler in an IRCompileLayer::IRCompiler, rather than an IRCompileLayer::CompileFunction, however this should be a straightforward change (see modifications to CompileUtils.* in this patch for an example).
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
//===--------------- IRCompileLayer.cpp - IR Compiling Layer --------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
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namespace llvm {
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namespace orc {
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IRCompileLayer::IRCompiler::~IRCompiler() {}
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IRCompileLayer::IRCompileLayer(ExecutionSession &ES, ObjectLayer &BaseLayer,
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std::unique_ptr<IRCompiler> Compile)
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: IRLayer(ES, ManglingOpts), BaseLayer(BaseLayer),
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Compile(std::move(Compile)) {
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ManglingOpts = &this->Compile->getManglingOptions();
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}
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void IRCompileLayer::setNotifyCompiled(NotifyCompiledFunction NotifyCompiled) {
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std::lock_guard<std::mutex> Lock(IRLayerMutex);
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this->NotifyCompiled = std::move(NotifyCompiled);
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}
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void IRCompileLayer::emit(MaterializationResponsibility R,
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ThreadSafeModule TSM) {
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assert(TSM && "Module must not be null");
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if (auto Obj = TSM.withModuleDo(*Compile)) {
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{
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std::lock_guard<std::mutex> Lock(IRLayerMutex);
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if (NotifyCompiled)
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NotifyCompiled(R.getVModuleKey(), std::move(TSM));
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else
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TSM = ThreadSafeModule();
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}
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BaseLayer.emit(std::move(R), std::move(*Obj));
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} else {
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R.failMaterialization();
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getExecutionSession().reportError(Obj.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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