gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang/lib/CIR/Lowering/DirectToLLVM/LowerToLLVM.cpp",
    "//mlir/include/mlir/Dialect/LLVMIR/LLVMIntrinsicOps.td",
    "//mlir/include/mlir/Dialect/LLVMIR/LLVMOpBase.td",
    "//mlir/lib/Conversion/VectorToLLVM/ConvertVectorToLLVM.cpp",
    "//mlir/lib/Dialect/LLVMIR/IR/LLVMInterfaces.cpp",
    "//mlir/test/Conversion/VectorToLLVM/use-vector-alignment.mlir",
    "//mlir/test/Conversion/VectorToLLVM/vector-to-llvm-interface.mlir",
    "//mlir/test/Conversion/VectorToLLVM/vector-to-llvm.mlir",
    "//mlir/test/Conversion/VectorToLLVM/vector-xfer-to-llvm.mlir",
    "//mlir/test/Dialect/LLVMIR/opaque-ptr.mlir",
    "//mlir/test/Dialect/LLVMIR/roundtrip.mlir",
    "//mlir/test/Target/LLVMIR/Import/intrinsic.ll",
    "//mlir/test/Target/LLVMIR/Import/masked-intrinsic-metadata.ll",
    "//mlir/test/Target/LLVMIR/llvmir-intrinsics.mlir",
    "//mlir/test/Target/LLVMIR/llvmir-invalid.mlir",
    "//mlir/test/Target/LLVMIR/masked-intrinsic-metadata.mlir",
    "//mlir/test/Target/LLVMIR/opaque-ptr.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": []
}