gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang/lib/Lower/Support/LoopAnnotation.cpp",
    "//flang/lib/Optimizer/Builder/HLFIRTools.cpp",
    "//libcxx/utils/ci/lnt/README.md",
    "//libcxx/utils/ci/lnt/common.py",
    "//libcxx/utils/ci/lnt/plan-benchmarks",
    "//libcxx/utils/ci/lnt/select-anchor-commits",
    "//mlir/include/mlir/Dialect/LLVMIR/LLVMAttrDefs.td",
    "//mlir/include/mlir/Dialect/LLVMIR/LLVMDialectBytecode.td",
    "//mlir/lib/Dialect/LLVMIR/Transforms/InlinerInterfaceImpl.cpp",
    "//mlir/lib/Target/LLVMIR/LoopAnnotationImporter.cpp",
    "//mlir/lib/Target/LLVMIR/LoopAnnotationTranslation.cpp",
    "//mlir/test/Dialect/LLVMIR/invalid.mlir",
    "//mlir/test/Dialect/LLVMIR/loop-metadata.mlir",
    "//mlir/test/Target/LLVMIR/Import/metadata-loop.ll",
    "//mlir/test/Target/LLVMIR/loop-metadata.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": []
}