gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AArch64/arm64-storebytesmerge.ll",
    "//llvm/test/CodeGen/AArch64/br-to-eh-lpad.ll",
    "//llvm/test/CodeGen/AArch64/br-undef-cond.ll",
    "//llvm/test/CodeGen/AArch64/gep-nullptr.ll",
    "//llvm/test/CodeGen/AArch64/machine-sink-getmemoperandwithoffset.mir",
    "//llvm/test/CodeGen/AArch64/madd-combiner.ll",
    "//llvm/test/CodeGen/AArch64/optimize-cond-branch.ll",
    "//llvm/test/CodeGen/AArch64/shrink-wrap.ll",
    "//llvm/test/CodeGen/AArch64/tail-call-unused-zext.ll",
    "//llvm/test/CodeGen/AArch64/tailcall-ssp-split-debug.ll",
    "//llvm/test/CodeGen/AMDGPU/cgp-bitfield-extract.ll",
    "//llvm/test/CodeGen/AMDGPU/dagcomb-shuffle-vecextend-non2.ll"
  ],
  "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": []
}