gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AArch64/arm64-early-ifcvt.ll",
    "//llvm/test/CodeGen/AArch64/swift-error-unreachable-use.ll",
    "//llvm/test/CodeGen/AMDGPU/dagcomb-shuffle-vecextend-non2.ll",
    "//llvm/test/CodeGen/X86/mbp-false-cfg-break.ll",
    "//llvm/test/CodeGen/X86/misched-aa-mmos.ll",
    "//llvm/test/CodeGen/X86/multiple-loop-post-inc.ll",
    "//llvm/test/CodeGen/X86/phi-bit-propagation.ll",
    "//llvm/test/CodeGen/X86/pr18846.ll",
    "//llvm/test/CodeGen/X86/remat-fold-load.ll",
    "//llvm/test/CodeGen/X86/selectiondag-cse.ll",
    "//llvm/test/CodeGen/X86/tailcall-cgp-dup.ll",
    "//llvm/test/CodeGen/X86/tailcall-ssp-split-debug.ll",
    "//llvm/test/CodeGen/X86/taildup-crash.ll",
    "//llvm/test/CodeGen/X86/vaargs-prolog-insert.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": []
}