[clang] [clang][test] add testing for the AST matcher reference (PR #94248)

Fri Sep 27 05:05:56 PDT 2024

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-cmake-x86_64-avx512-linux` running on `avx512-intel64` while building `clang` at step 7 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/133/builds/4366

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 7 (ninja check 1) failure: stage 1 checked (failure)
...
[31/967] Building CXX object tools/clang/unittests/Driver/CMakeFiles/ClangDriverTests.dir/MultilibTest.cpp.o
[32/967] Building CXX object tools/clang/unittests/Basic/CMakeFiles/BasicTests.dir/SourceManagerTest.cpp.o
[33/967] Building CXX object tools/clang/unittests/Lex/CMakeFiles/LexTests.dir/LexerTest.cpp.o
[34/967] Linking CXX executable tools/clang/unittests/Basic/BasicTests
[35/967] Building CXX object tools/clang/unittests/Analysis/FlowSensitive/CMakeFiles/ClangAnalysisFlowSensitiveTests.dir/DataflowAnalysisContextTest.cpp.o
[36/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/APSIntTypeTest.cpp.o
[37/967] Building CXX object tools/clang/unittests/Driver/CMakeFiles/ClangDriverTests.dir/DXCModeTest.cpp.o
[38/967] Building CXX object tools/clang/lib/Testing/CMakeFiles/clangTesting.dir/TestAST.cpp.o
[39/967] Linking CXX static library lib/libclangTesting.a
[40/967] Generating ASTMatchersDocTests.cpp
FAILED: tools/clang/unittests/ASTMatchers/ASTMatchersDocTests.cpp 
cd /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/tools/clang/unittests/ASTMatchers && /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/clang/utils/generate_ast_matcher_doc_tests.py --input-file /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/clang/include/clang/ASTMatchers/ASTMatchers.h --output-file /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/tools/clang/unittests/ASTMatchers/ASTMatchersDocTests.cpp
Traceback (most recent call last):
  File "/localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/clang/utils/generate_ast_matcher_doc_tests.py", line 1165, in <module>
    main()
  File "/localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/clang/utils/generate_ast_matcher_doc_tests.py", line 1130, in main
    [r.build_test_case() for r in results[0]],
  File "/localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/clang/utils/generate_ast_matcher_doc_tests.py", line 1130, in <listcomp>
    [r.build_test_case() for r in results[0]],
  File "/localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/clang/utils/generate_ast_matcher_doc_tests.py", line 620, in build_test_case
    if not can_code_compile(self.code, self.headers, self.compile_args):
  File "/localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/clang/utils/generate_ast_matcher_doc_tests.py", line 477, in can_code_compile
    res = run(invocation, cwd=tmp_path, check=False)
  File "/usr/lib64/python3.9/subprocess.py", line 505, in run
    with Popen(*popenargs, **kwargs) as process:
  File "/usr/lib64/python3.9/subprocess.py", line 951, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib64/python3.9/subprocess.py", line 1821, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'clang'
[41/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/Z3CrosscheckOracleTest.cpp.o
[42/967] Building CXX object tools/clang/unittests/Analysis/CMakeFiles/ClangAnalysisTests.dir/MacroExpansionContextTest.cpp.o
[43/967] Building CXX object tools/clang/unittests/Lex/CMakeFiles/LexTests.dir/PPCallbacksTest.cpp.o
[44/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/ConflictingEvalCallsTest.cpp.o
[45/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/ExprEngineVisitTest.cpp.o
[46/967] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/CommentTextTest.cpp.o
[47/967] Building CXX object tools/clang/unittests/AST/CMakeFiles/ASTTests.dir/ASTVectorTest.cpp.o
[48/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/CallEventTest.cpp.o
[49/967] Building CXX object tools/clang/unittests/Driver/CMakeFiles/ClangDriverTests.dir/ToolChainTest.cpp.o
[50/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/MemRegionDescriptiveNameTest.cpp.o
[51/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/NoStateChangeFuncVisitorTest.cpp.o
[52/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/TestReturnValueUnderConstruction.cpp.o
[53/967] Building CXX object tools/clang/unittests/Analysis/FlowSensitive/CMakeFiles/ClangAnalysisFlowSensitiveTests.dir/MapLatticeTest.cpp.o
[54/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/IsCLibraryFunctionTest.cpp.o
[55/967] Building CXX object tools/clang/unittests/Analysis/FlowSensitive/CMakeFiles/ClangAnalysisFlowSensitiveTests.dir/DebugSupportTest.cpp.o
[56/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/RegisterCustomCheckersTest.cpp.o
[57/967] Building CXX object tools/clang/unittests/Analysis/CMakeFiles/ClangAnalysisTests.dir/CFGDominatorTree.cpp.o
[58/967] Building CXX object tools/clang/unittests/Analysis/FlowSensitive/CMakeFiles/ClangAnalysisFlowSensitiveTests.dir/SimplifyConstraintsTest.cpp.o
[59/967] Building CXX object tools/clang/unittests/StaticAnalyzer/CMakeFiles/StaticAnalysisTests.dir/StoreTest.cpp.o

```

</details>

https://github.com/llvm/llvm-project/pull/94248