gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//lld/ELF/LinkerScript.cpp",
    "//lld/wasm/Writer.cpp",
    "//llvm/lib/IR/Type.cpp",
    "//llvm/lib/IR/Verifier.cpp",
    "//llvm/lib/LTO/LTO.cpp",
    "//llvm/lib/Transforms/IPO/SampleProfile.cpp",
    "//llvm/lib/Transforms/Scalar/LowerMatrixIntrinsics.cpp",
    "//llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp",
    "//llvm/lib/Transforms/Utils/LoopUtils.cpp",
    "//llvm/lib/Transforms/Vectorize/LoopVectorize.cpp",
    "//llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp",
    "//llvm/utils/gn/secondary/bolt/lib/Passes/BUILD.gn",
    "//llvm/utils/gn/secondary/clang/lib/CodeGen/BUILD.gn",
    "//llvm/utils/gn/secondary/lldb/tools/lldb-dap/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/lib/Target/SystemZ/MCTargetDesc/BUILD.gn"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}