gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/config/linux/x86_64/entrypoints.txt",
    "//libc/hdr/CMakeLists.txt",
    "//libc/hdr/pthread_macros.h",
    "//libc/hdr/types/CMakeLists.txt",
    "//libc/hdr/types/pthread_barrier_t.h",
    "//libc/hdr/types/pthread_barrierattr_t.h",
    "//libc/include/CMakeLists.txt",
    "//libc/include/llvm-libc-macros/pthread-macros.h",
    "//libc/include/llvm-libc-types/CMakeLists.txt",
    "//libc/include/llvm-libc-types/__barrier_type.h",
    "//libc/include/llvm-libc-types/pthread_barrier_t.h",
    "//libc/include/llvm-libc-types/pthread_barrierattr_t.h",
    "//libc/include/pthread.yaml",
    "//libc/src/__support/threads/linux/CMakeLists.txt",
    "//libc/src/__support/threads/linux/barrier.cpp",
    "//libc/src/__support/threads/linux/barrier.h",
    "//libc/src/pthread/CMakeLists.txt",
    "//libc/src/pthread/pthread_barrier_destroy.cpp",
    "//libc/src/pthread/pthread_barrier_destroy.h",
    "//libc/src/pthread/pthread_barrier_init.cpp",
    "//libc/src/pthread/pthread_barrier_init.h",
    "//libc/src/pthread/pthread_barrier_wait.cpp",
    "//libc/src/pthread/pthread_barrier_wait.h",
    "//libc/test/integration/src/pthread/CMakeLists.txt",
    "//libc/test/integration/src/pthread/pthread_barrier_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