1 //===----- ExampleModules.h - IR modules for LLJIT examples -----*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // Example modules for LLJIT examples
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_EXAMPLES_HOWTOUSELLJIT_EXAMPLEMODULES_H
14 #define LLVM_EXAMPLES_HOWTOUSELLJIT_EXAMPLEMODULES_H
15 
16 #include "llvm/ADT/StringRef.h"
17 #include "llvm/ExecutionEngine/Orc/ThreadSafeModule.h"
18 #include "llvm/IR/LLVMContext.h"
19 #include "llvm/IR/Module.h"
20 #include "llvm/IRReader/IRReader.h"
21 #include "llvm/Support/Error.h"
22 #include "llvm/Support/SourceMgr.h"
23 
24 const llvm::StringRef Add1Example =
25     R"(
26   define i32 @add1(i32 %x) {
27   entry:
28     %r = add nsw i32 %x, 1
29     ret i32 %r
30   }
31 )";
32 
33 inline llvm::Expected<llvm::orc::ThreadSafeModule>
34 parseExampleModule(llvm::StringRef Source, llvm::StringRef Name) {
35   using namespace llvm;
36   using namespace llvm::orc;
37 
38   auto Ctx = std::make_unique<LLVMContext>();
39   SMDiagnostic Err;
40   auto M = parseIR(MemoryBufferRef(Source, Name), Err, *Ctx);
41 
42   if (!M) {
43     std::string ErrMsg;
44     {
45       raw_string_ostream ErrStream(ErrMsg);
46       Err.print("", ErrStream);
47     }
48     return make_error<StringError>(std::move(ErrMsg), inconvertibleErrorCode());
49   }
50 
51   return ThreadSafeModule(std::move(M), std::move(Ctx));
52 }
53 
54 #endif // LLVM_EXAMPLES_HOWTOUSELLJIT_EXAMPLEMODULES_H
55