| 1 | //===- unittests/Frontend/CodeGenActionTest.cpp --- FrontendAction tests --===// |
|---|---|
| 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 | // Unit tests for CodeGenAction. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #include "clang/CodeGen/BackendUtil.h" |
| 14 | #include "clang/CodeGen/CodeGenAction.h" |
| 15 | #include "clang/Frontend/CompilerInstance.h" |
| 16 | #include "clang/Lex/PreprocessorOptions.h" |
| 17 | #include "gtest/gtest.h" |
| 18 | |
| 19 | using namespace llvm; |
| 20 | using namespace clang; |
| 21 | using namespace clang::frontend; |
| 22 | |
| 23 | namespace { |
| 24 | |
| 25 | |
| 26 | class NullCodeGenAction : public CodeGenAction { |
| 27 | public: |
| 28 | NullCodeGenAction(llvm::LLVMContext *_VMContext = nullptr) |
| 29 | : CodeGenAction(Backend_EmitMCNull, _VMContext) {} |
| 30 | |
| 31 | // The action does not call methods of ATContext. |
| 32 | void ExecuteAction() override { |
| 33 | CompilerInstance &CI = getCompilerInstance(); |
| 34 | if (!CI.hasPreprocessor()) |
| 35 | return; |
| 36 | if (!CI.hasSema()) |
| 37 | CI.createSema(getTranslationUnitKind(), nullptr); |
| 38 | } |
| 39 | }; |
| 40 | |
| 41 | |
| 42 | TEST(CodeGenTest, TestNullCodeGen) { |
| 43 | auto Invocation = std::make_shared<CompilerInvocation>(); |
| 44 | Invocation->getPreprocessorOpts().addRemappedFile( |
| 45 | "test.cc", |
| 46 | MemoryBuffer::getMemBuffer("").release()); |
| 47 | Invocation->getFrontendOpts().Inputs.push_back( |
| 48 | FrontendInputFile("test.cc", InputKind::CXX)); |
| 49 | Invocation->getFrontendOpts().ProgramAction = EmitLLVM; |
| 50 | Invocation->getTargetOpts().Triple = "i386-unknown-linux-gnu"; |
| 51 | CompilerInstance Compiler; |
| 52 | Compiler.setInvocation(std::move(Invocation)); |
| 53 | Compiler.createDiagnostics(); |
| 54 | EXPECT_TRUE(Compiler.hasDiagnostics()); |
| 55 | |
| 56 | std::unique_ptr<FrontendAction> Act(new NullCodeGenAction); |
| 57 | bool Success = Compiler.ExecuteAction(*Act); |
| 58 | EXPECT_TRUE(Success); |
| 59 | } |
| 60 | |
| 61 | } |
| 62 |