49f9532165
Some systems use a different data layout. For instance, s390x the layout of machines with vector registers is different from the ones without. In such cases, the JIT will automatically detect the vector registers and go out of sync. This patch tells the JIT what is the target triple of the generated code so that both ends are in sync. Discussion available in https://reviews.llvm.org/D96033. Thanks to @uweigand for helping understand the issue. Differential revision https://reviews.llvm.org/D102756
64 lines
2.2 KiB
C++
64 lines
2.2 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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} // end namespace clang
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