gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/docs/CommandGuide/index.md",
    "//llvm/docs/CommandGuide/llvm-calc-occupancy.rst",
    "//llvm/test/CMakeLists.txt",
    "//llvm/test/lit.cfg.py",
    "//llvm/test/tools/llvm-calc-occupancy/basic.test",
    "//llvm/tools/llvm-calc-occupancy/CMakeLists.txt",
    "//llvm/tools/llvm-calc-occupancy/llvm-calc-occupancy.cpp",
    "//mlir/include/mlir-c/BuiltinTypes.h",
    "//mlir/include/mlir/Bindings/Python/IRTypes.h",
    "//mlir/include/mlir/IR/Builders.h",
    "//mlir/include/mlir/IR/BuiltinTypes.td",
    "//mlir/include/mlir/IR/CommonTypeConstraints.td",
    "//mlir/lib/AsmParser/TokenKinds.def",
    "//mlir/lib/AsmParser/TypeParser.cpp",
    "//mlir/lib/Bindings/Python/IRTypes.cpp",
    "//mlir/lib/CAPI/IR/BuiltinTypes.cpp",
    "//mlir/lib/Conversion/LLVMCommon/TypeConverter.cpp",
    "//mlir/lib/IR/AsmPrinter.cpp",
    "//mlir/lib/IR/Builders.cpp",
    "//mlir/lib/IR/BuiltinTypes.cpp",
    "//mlir/python/mlir/extras/types.py",
    "//mlir/test/IR/attribute.mlir",
    "//mlir/test/Target/LLVMIR/llvmir.mlir",
    "//mlir/test/python/ir/builtin_types.py",
    "//mlir/utils/lldb-scripts/mlirDataFormatters.py",
    "//mlir/utils/tree-sitter-mlir/grammar.js"
  ],
  "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": []
}