gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AArch64/GlobalISel/select-splat-vector.ll",
    "//llvm/test/CodeGen/AArch64/dump-schedule-trace.mir",
    "//llvm/test/CodeGen/AArch64/force-enable-intervals.mir",
    "//llvm/test/CodeGen/AArch64/misched-detail-resource-booking-01.mir",
    "//llvm/test/CodeGen/AArch64/misched-detail-resource-booking-02.mir",
    "//llvm/test/CodeGen/AArch64/misched-sort-resource-in-trace.mir",
    "//llvm/test/CodeGen/ARM/misched-prevent-erase-history-of-subunits.mir",
    "//llvm/test/CodeGen/SPARC/llvm.sincos.ll",
    "//llvm/test/CodeGen/SystemZ/systemz-large-stack-frames.ll",
    "//llvm/test/CodeGen/SystemZ/zos-ppa1.ll",
    "//llvm/test/CodeGen/WebAssembly/expand-variadic-call.ll",
    "//llvm/test/CodeGen/WebAssembly/vararg-frame.ll"
  ],
  "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": []
}