| //===----- LLJITDumpObjects.cpp - How to dump JIT'd objects with LLJIT ----===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/ADT/StringMap.h" |
| #include "llvm/ExecutionEngine/Orc/DebugUtils.h" |
| #include "llvm/ExecutionEngine/Orc/LLJIT.h" |
| #include "llvm/ExecutionEngine/Orc/ObjectTransformLayer.h" |
| #include "llvm/Support/InitLLVM.h" |
| #include "llvm/Support/TargetSelect.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| #include "../ExampleModules.h" |
| |
| using namespace llvm; |
| using namespace llvm::orc; |
| |
| ExitOnError ExitOnErr; |
| |
| cl::opt<bool> DumpJITdObjects("dump-jitted-objects", |
| cl::desc("dump jitted objects"), cl::Optional, |
| cl::init(true)); |
| |
| cl::opt<std::string> DumpDir("dump-dir", |
| cl::desc("directory to dump objects to"), |
| cl::Optional, cl::init("")); |
| |
| cl::opt<std::string> DumpFileStem("dump-file-stem", |
| cl::desc("Override default dump names"), |
| cl::Optional, cl::init("")); |
| |
| int main(int argc, char *argv[]) { |
| // Initialize LLVM. |
| InitLLVM X(argc, argv); |
| |
| InitializeNativeTarget(); |
| InitializeNativeTargetAsmPrinter(); |
| |
| cl::ParseCommandLineOptions(argc, argv, "LLJITDumpObjects"); |
| ExitOnErr.setBanner(std::string(argv[0]) + ": "); |
| |
| outs() |
| << "Usage notes:\n" |
| " Use -debug-only=orc on debug builds to see log messages of objects " |
| "being dumped\n" |
| " Specify -dump-dir to specify a dump directory\n" |
| " Specify -dump-file-stem to override the dump file stem\n" |
| " Specify -dump-jitted-objects=false to disable dumping\n"; |
| |
| auto J = ExitOnErr(LLJITBuilder().create()); |
| |
| if (DumpJITdObjects) |
| J->getObjTransformLayer().setTransform(DumpObjects(DumpDir, DumpFileStem)); |
| |
| auto M = ExitOnErr(parseExampleModule(Add1Example, "add1")); |
| |
| ExitOnErr(J->addIRModule(std::move(M))); |
| |
| // Look up the JIT'd function, cast it to a function pointer, then call it. |
| auto Add1Addr = ExitOnErr(J->lookup("add1")); |
| int (*Add1)(int) = Add1Addr.toPtr<int(int)>(); |
| |
| int Result = Add1(42); |
| outs() << "add1(42) = " << Result << "\n"; |
| |
| return 0; |
| } |