gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//mlir/docs/Dialects/Affine.md",
    "//mlir/lib/Dialect/Affine/IR/AffineOps.cpp",
    "//mlir/test/Dialect/Affine/SuperVectorize/vectorize_reduction.mlir",
    "//mlir/test/Dialect/Affine/invalid.mlir",
    "//mlir/test/Dialect/Affine/ops.mlir",
    "//mlir/test/Dialect/GPU/transform-gpu.mlir",
    "//mlir/test/Dialect/Linalg/convert-conv2d-to-img2col.mlir",
    "//mlir/test/Dialect/Linalg/tile-indexed.mlir",
    "//mlir/test/Dialect/Linalg/transform-op-split.mlir",
    "//mlir/test/Interfaces/TilingInterface/tile-using-interface.mlir",
    "//mlir/test/Interfaces/TilingInterface/tile-using-scfforall.mlir"
  ],
  "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": []
}