gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/cmake/modules/LLVMLibCCompileOptionRules.cmake",
    "//libc/config/config.json",
    "//libc/config/windows/config.json",
    "//libc/docs/dev/printf_behavior.rst",
    "//libc/src/__support/wchar/CMakeLists.txt",
    "//libc/src/__support/wchar/character_converter.cpp",
    "//libc/src/__support/wchar/character_converter.h",
    "//libc/src/__support/wchar/wcrtomb.cpp",
    "//libc/src/__support/wchar/wcrtomb.h",
    "//libc/src/stdio/printf_core/CMakeLists.txt",
    "//libc/src/stdio/printf_core/char_converter.h",
    "//libc/src/stdio/printf_core/core_structs.h",
    "//libc/src/stdio/printf_core/linux/error_mapper.h",
    "//libc/src/stdio/printf_core/parser.h",
    "//libc/test/src/stdio/CMakeLists.txt",
    "//libc/test/src/stdio/sprintf_test.cpp"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}
running all tests due to change to blacklisted file