gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AMDGPU/lds-run-twice-absolute-md.ll",
    "//llvm/test/CodeGen/AMDGPU/lds-run-twice.ll",
    "//llvm/test/tools/llvm-ar/option-X.test",
    "//llvm/test/tools/llvm-nm/option-X-AIX.test",
    "//llvm/test/tools/llvm-ranlib/aix-X-option.test",
    "//llvm/test/tools/llvm-strings/eof.test",
    "//llvm/test/tools/llvm-strings/stdin.test",
    "//llvm/test/tools/llvm-strings/whitespace.test",
    "//llvm/test/tools/yaml2obj/empty-or-invalid-doc.yaml",
    "//llvm/utils/lit/tests/shtest-readfile-external.py",
    "//llvm/utils/lit/tests/shtest-ulimit-nondarwin.py"
  ],
  "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