1 files changed, 148 insertions, 0 deletions
diff --git a/clang/unittests/Interpreter/OutOfProcessInterpreterTests.cpp b/clang/unittests/Interpreter/OutOfProcessInterpreterTests.cpp
new file mode 100644
index 0000000..4d5ef5c
--- /dev/null
+++ b/clang/unittests/Interpreter/OutOfProcessInterpreterTests.cpp
@@ -0,0 +1,148 @@
+//===- unittests/Interpreter/OutOfProcessInterpreterTest.cpp --- Interpreter
+// tests when Out-of-Process ----===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// Unit tests for Clang's Interpreter library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "InterpreterTestFixture.h"
+
+#include "clang/AST/Decl.h"
+#include "clang/AST/DeclGroup.h"
+#include "clang/AST/Mangle.h"
+#include "clang/Basic/Version.h"
+#include "clang/Config/config.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Frontend/TextDiagnosticPrinter.h"
+#include "clang/Interpreter/Interpreter.h"
+#include "clang/Interpreter/RemoteJITUtils.h"
+#include "clang/Interpreter/Value.h"
+#include "clang/Sema/Lookup.h"
+#include "clang/Sema/Sema.h"
+#include "llvm/Support/Error.h"
+#include "llvm/TargetParser/Host.h"
+
+#include "llvm/TargetParser/Host.h"
+
+#include "gmock/gmock.h"
+#include "gtest/gtest.h"
+
+using namespace clang;
+
+llvm::ExitOnError ExitOnError;
+
+#ifdef _WIN32
+#define STDIN_FILENO 0
+#define STDOUT_FILENO 1
+#define STDERR_FILENO 2
+#endif
+
+namespace {
+
+using Args = std::vector<const char *>;
+
+static void removePathComponent(unsigned N, llvm::SmallString<256> &Path) {
+  for (unsigned i = 0; i < N; ++i)
+    llvm::sys::path::remove_filename(Path);
+}
+
+static std::string getExecutorPath() {
+  llvm::SmallString<256> ExecutorPath(llvm::sys::fs::getMainExecutable(
+      nullptr, reinterpret_cast<void *>(&getExecutorPath)));
+  removePathComponent(5, ExecutorPath);
+  llvm::sys::path::append(ExecutorPath, "bin", "llvm-jitlink-executor");
+  return ExecutorPath.str().str();
+}
+
+static std::string getOrcRuntimePath() {
+  llvm::SmallString<256> RuntimePath(llvm::sys::fs::getMainExecutable(
+      nullptr, reinterpret_cast<void *>(&getOrcRuntimePath)));
+  removePathComponent(5, RuntimePath);
+  llvm::sys::path::append(RuntimePath, CLANG_INSTALL_LIBDIR_BASENAME, "clang",
+                          CLANG_VERSION_MAJOR_STRING, "lib");
+
+  llvm::Triple SystemTriple(llvm::sys::getProcessTriple());
+  if (SystemTriple.isOSBinFormatMachO()) {
+    llvm::sys::path::append(RuntimePath, "darwin", "liborc_rt_osx.a");
+  } else if (SystemTriple.isOSBinFormatELF()) {
+    llvm::sys::path::append(RuntimePath, "x86_64-unknown-linux-gnu",
+                            "liborc_rt.a");
+  }
+
+  return RuntimePath.str().str();
+}
+
+static std::unique_ptr<Interpreter>
+createInterpreterWithRemoteExecution(const Args &ExtraArgs = {},
+                                     DiagnosticConsumer *Client = nullptr) {
+  Args ClangArgs = {"-Xclang", "-emit-llvm-only"};
+  llvm::append_range(ClangArgs, ExtraArgs);
+  auto CB = clang::IncrementalCompilerBuilder();
+  CB.SetCompilerArgs(ClangArgs);
+  auto CI = cantFail(CB.CreateCpp());
+  if (Client)
+    CI->getDiagnostics().setClient(Client, /*ShouldOwnClient=*/false);
+
+  std::unique_ptr<llvm::orc::LLJITBuilder> JB;
+
+  llvm::Triple SystemTriple(llvm::sys::getProcessTriple());
+
+  if ((SystemTriple.isOSBinFormatELF() || SystemTriple.isOSBinFormatMachO())) {
+    std::string OOPExecutor = getExecutorPath();
+    std::string OrcRuntimePath = getOrcRuntimePath();
+    bool UseSharedMemory = false;
+    std::string SlabAllocateSizeString = "";
+    std::unique_ptr<llvm::orc::ExecutorProcessControl> EPC;
+    EPC = ExitOnError(launchExecutor(OOPExecutor, UseSharedMemory,
+                                     SlabAllocateSizeString,
+                                     [=] { // Lambda defined inline
+                                       auto redirect = [](int from, int to) {
+                                         if (from != to) {
+                                           dup2(from, to);
+                                           close(from);
+                                         }
+                                       };
+
+                                       redirect(0, STDIN_FILENO);
+                                       redirect(1, STDOUT_FILENO);
+                                       redirect(2, STDERR_FILENO);
+
+                                       setvbuf(stdout, nullptr, _IONBF, 0);
+                                       setvbuf(stderr, nullptr, _IONBF, 0);
+                                     }));
+    if (EPC) {
+      CB.SetTargetTriple(EPC->getTargetTriple().getTriple());
+      JB = ExitOnError(clang::Interpreter::createLLJITBuilder(std::move(EPC),
+                                                              OrcRuntimePath));
+    }
+  }
+
+  return cantFail(clang::Interpreter::create(std::move(CI), std::move(JB)));
+}
+
+static size_t DeclsSize(TranslationUnitDecl *PTUDecl) {
+  return std::distance(PTUDecl->decls().begin(), PTUDecl->decls().end());
+}
+
+TEST_F(InterpreterTestBase, SanityWithRemoteExecution) {
+  if (!HostSupportsJIT())
+    GTEST_SKIP();
+
+  std::unique_ptr<Interpreter> Interp = createInterpreterWithRemoteExecution();
+
+  using PTU = PartialTranslationUnit;
+
+  PTU &R1(cantFail(Interp->Parse("void g(); void g() {}")));
+  EXPECT_EQ(2U, DeclsSize(R1.TUPart));
+
+  PTU &R2(cantFail(Interp->Parse("int i;")));
+  EXPECT_EQ(1U, DeclsSize(R2.TUPart));
+}
+
+} // end anonymous namespace