gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//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": [
    "//libcxxabi/test/cxa_thread_atexit_test.pass.cpp",
    "//llvm/lib/CodeGen/DeadMachineInstructionElim.cpp",
    "//llvm/test/CodeGen/AArch64/fcvt-i256.ll",
    "//llvm/test/CodeGen/AMDGPU/constant-fold-imm-immreg.mir",
    "//llvm/test/CodeGen/AMDGPU/fold-immediate-operand-shrink.mir",
    "//llvm/test/CodeGen/SystemZ/atomicrmw-udec_wrap.ll",
    "//llvm/test/CodeGen/Thumb/pr35836.ll",
    "//llvm/test/CodeGen/X86/bittest-big-integer.ll",
    "//llvm/test/CodeGen/X86/combine-sbb.ll",
    "//llvm/test/CodeGen/X86/dead-mi-elimination-dead-physreg-def.mir",
    "//llvm/test/CodeGen/X86/midpoint-int.ll",
    "//llvm/test/CodeGen/X86/scheduler-backtracking.ll",
    "//llvm/test/CodeGen/X86/select-lea.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": []
}