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66e55d58ea
This ensures that we're building and testing the CompileOnDemand layer, at least
in a basic way.
Currently x86-64 only, and with limited to no library calls enabled (depending
on host platform). Patches welcome. ;)
To enable access to the lazy JIT, this patch replaces the '-use-orcmcjit' lli
option with a new option:
'-jit-kind={ mcjit | orc-mcjit | orc-lazy }'.
All regression tests are updated to use the new option, and one trivial test of
the new lazy JIT is added.
llvm-svn: 233182
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===------ OrcLazyJIT.cpp - Basic Orc-based JIT for lazy execution -------===//
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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 "OrcLazyJIT.h"
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#include "llvm/ExecutionEngine/Orc/OrcTargetSupport.h"
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using namespace llvm;
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std::unique_ptr<OrcLazyJIT::CompileCallbackMgr>
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OrcLazyJIT::createCallbackMgr(Triple T, LLVMContext &Context) {
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switch (T.getArch()) {
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default:
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// Flag error.
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Error = true;
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return nullptr;
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case Triple::x86_64: {
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typedef orc::JITCompileCallbackManager<CompileLayerT,
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orc::OrcX86_64> CCMgrT;
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return make_unique<CCMgrT>(CompileLayer, Context, 0, 64);
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}
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}
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}
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int llvm::runOrcLazyJIT(std::unique_ptr<Module> M, int ArgC, char* ArgV[]) {
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OrcLazyJIT J(std::unique_ptr<TargetMachine>(EngineBuilder().selectTarget()),
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getGlobalContext());
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if (!J.Ok()) {
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errs() << "Could not construct JIT.\n";
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return 1;
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}
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auto MainHandle = J.addModule(std::move(M));
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auto MainSym = J.findSymbolIn(MainHandle, "main");
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if (!MainSym) {
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errs() << "Could not find main function.\n";
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return 1;
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}
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typedef int (*MainFnPtr)(int, char*[]);
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auto Main = reinterpret_cast<MainFnPtr>(
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static_cast<uintptr_t>(MainSym.getAddress()));
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return Main(ArgC, ArgV);
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}
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