gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/lib/Target/DirectX/CMakeLists.txt",
    "//llvm/lib/Target/DirectX/DXILFlattenArrays.cpp",
    "//llvm/lib/Target/DirectX/DXILFlattenArrays.h",
    "//llvm/lib/Target/DirectX/DirectX.h",
    "//llvm/lib/Target/DirectX/DirectXPassRegistry.def",
    "//llvm/lib/Target/DirectX/DirectXTargetMachine.cpp",
    "//llvm/test/CodeGen/DirectX/flatten-array.ll",
    "//llvm/test/CodeGen/DirectX/llc-pipeline.ll",
    "//llvm/test/CodeGen/DirectX/llc-vector-load-scalarize.ll",
    "//llvm/test/CodeGen/DirectX/llc-vector-store-scalarize.ll",
    "//llvm/test/CodeGen/DirectX/scalar-data.ll",
    "//llvm/test/CodeGen/DirectX/scalar-load.ll",
    "//llvm/test/CodeGen/DirectX/scalar-store.ll"
  ],
  "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