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",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/CMakeLists.txt",
    "//llvm/lib/Target/X86/X86ISelLowering.cpp",
    "//llvm/test/CodeGen/ARM/2009-10-02-NEONSubregsBug.ll",
    "//llvm/test/CodeGen/ARM/2012-04-10-DAGCombine.ll",
    "//llvm/test/CodeGen/ARM/fnmul.ll",
    "//llvm/test/CodeGen/ARM/fp16-vminmaxnm.ll",
    "//llvm/test/CodeGen/ARM/fp16.ll",
    "//llvm/test/CodeGen/ARM/sincos.ll",
    "//llvm/test/CodeGen/ARM/vminmaxnm.ll",
    "//llvm/test/CodeGen/X86/vector-shuffle-combining-avx2.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": []
}