gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//mlir/python/mlir/dialects/amdgpu.py",
    "//mlir/python/mlir/dialects/async_dialect/__init__.py",
    "//mlir/python/mlir/dialects/bufferization.py",
    "//mlir/python/mlir/dialects/cf.py",
    "//mlir/python/mlir/dialects/complex.py",
    "//mlir/python/mlir/dialects/emitc.py",
    "//mlir/python/mlir/dialects/index.py",
    "//mlir/python/mlir/dialects/linalg/__init__.py",
    "//mlir/python/mlir/dialects/llvm.py",
    "//mlir/python/mlir/dialects/math.py",
    "//mlir/python/mlir/dialects/memref.py",
    "//mlir/python/mlir/dialects/nvgpu.py",
    "//mlir/python/mlir/dialects/nvvm.py",
    "//mlir/python/mlir/dialects/openacc.py",
    "//mlir/python/mlir/dialects/openmp.py",
    "//mlir/python/mlir/dialects/python_test.py",
    "//mlir/python/mlir/dialects/rocdl.py",
    "//mlir/python/mlir/dialects/shape.py",
    "//mlir/python/mlir/dialects/shard.py",
    "//mlir/python/mlir/dialects/smt.py",
    "//mlir/python/mlir/dialects/sparse_tensor.py",
    "//mlir/python/mlir/dialects/spirv.py",
    "//mlir/python/mlir/dialects/tosa.py",
    "//mlir/python/mlir/dialects/ub.py",
    "//mlir/python/mlir/dialects/vector.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": []
}