1dba6b37bd
Original commit message: "
Original commit message: "
Original commit message:"
The current infrastructure in lib/Interpreter has a tool, clang-repl, very
similar to clang-interpreter which also allows incremental compilation.
This patch moves clang-interpreter as a test case and drops it as conditionally
built example as we already have clang-repl in place.
Differential revision: https://reviews.llvm.org/D107049
"
This patch also ignores ppc due to missing weak symbol for __gxx_personality_v0
which may be a feature request for the jit infrastructure. Also, adds a missing
build system dependency to the orc jit.
"
Additionally, this patch defines a custom exception type and thus avoids the
requirement to include header <exception>, making it easier to deploy across
systems without standard location of the c++ headers.
"
This patch also works around PR49692 and finds a way to use llvm::consumeError
in rtti mode.
Differential revision: https://reviews.llvm.org/D107049
72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
//===--- IncrementalExecutor.cpp - Incremental Execution --------*- C++ -*-===//
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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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//
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// This file implements the class which performs incremental code execution.
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//
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//===----------------------------------------------------------------------===//
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#include "IncrementalExecutor.h"
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#include "llvm/ExecutionEngine/ExecutionEngine.h"
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#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
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#include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
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#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
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#include "llvm/ExecutionEngine/Orc/LLJIT.h"
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#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
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#include "llvm/ExecutionEngine/SectionMemoryManager.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/TargetSelect.h"
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namespace clang {
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IncrementalExecutor::IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC,
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llvm::Error &Err,
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const llvm::Triple &Triple)
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: TSCtx(TSC) {
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using namespace llvm::orc;
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llvm::ErrorAsOutParameter EAO(&Err);
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auto JTMB = JITTargetMachineBuilder(Triple);
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if (auto JitOrErr = LLJITBuilder().setJITTargetMachineBuilder(JTMB).create())
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Jit = std::move(*JitOrErr);
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else {
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Err = JitOrErr.takeError();
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return;
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}
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const char Pref = Jit->getDataLayout().getGlobalPrefix();
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// Discover symbols from the process as a fallback.
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if (auto PSGOrErr = DynamicLibrarySearchGenerator::GetForCurrentProcess(Pref))
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Jit->getMainJITDylib().addGenerator(std::move(*PSGOrErr));
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else {
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Err = PSGOrErr.takeError();
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return;
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}
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}
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IncrementalExecutor::~IncrementalExecutor() {}
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llvm::Error IncrementalExecutor::addModule(std::unique_ptr<llvm::Module> M) {
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return Jit->addIRModule(llvm::orc::ThreadSafeModule(std::move(M), TSCtx));
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}
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llvm::Error IncrementalExecutor::runCtors() const {
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return Jit->initialize(Jit->getMainJITDylib());
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}
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llvm::Expected<llvm::JITTargetAddress>
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IncrementalExecutor::getSymbolAddress(llvm::StringRef UnmangledName) const {
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auto Sym = Jit->lookup(UnmangledName);
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if (!Sym)
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return Sym.takeError();
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return Sym->getAddress();
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}
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} // end namespace clang
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