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/Target/AArch64/AArch64TargetTransformInfo.cpp",
    "//llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp",
    "//llvm/test/CodeGen/AMDGPU/agpr-copy-no-free-registers.ll",
    "//llvm/test/CodeGen/AMDGPU/agpr-copy-propagation.mir",
    "//llvm/test/CodeGen/AMDGPU/mfma-no-register-aliasing.ll",
    "//llvm/test/CodeGen/AMDGPU/no-fold-accvgpr-mov.ll",
    "//llvm/test/Transforms/LoopVectorize/AArch64/pr162009.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": []
}