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": [
    "//llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp",
    "//llvm/test/CodeGen/AArch64/GlobalISel/legalize-load-range.mir",
    "//llvm/test/CodeGen/AArch64/add.ll",
    "//llvm/test/CodeGen/AArch64/andorxor.ll",
    "//llvm/test/CodeGen/AArch64/ctlz.ll",
    "//llvm/test/CodeGen/AArch64/ctpop.ll",
    "//llvm/test/CodeGen/AArch64/cttz.ll",
    "//llvm/test/CodeGen/AArch64/load.ll",
    "//llvm/test/CodeGen/AArch64/mul.ll",
    "//llvm/test/CodeGen/AArch64/neon-dotreduce.ll",
    "//llvm/test/CodeGen/AArch64/sub.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": []
}