gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//mlir/include/mlir-c/Dialect/GPU.h",
    "//mlir/lib/Bindings/Python/DialectGPU.cpp",
    "//mlir/lib/CAPI/Dialect/GPU.cpp",
    "//mlir/python/CMakeLists.txt",
    "//mlir/python/mlir/dialects/gpu/__init__.py",
    "//mlir/test/python/dialects/gpu/dialect.py",
    "//mlir/test/python/dialects/gpu/module-to-binary-nvvm.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": []
}