gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/CodeGen/AArch64/fsincos.ll",
    "//llvm/test/CodeGen/AArch64/llvm.frexp.ll",
    "//llvm/test/CodeGen/AArch64/llvm.sincos.ll",
    "//llvm/test/CodeGen/Mips/ldexp.ll",
    "//llvm/test/CodeGen/PowerPC/exp10-libcall.ll",
    "//llvm/test/CodeGen/PowerPC/ldexp-libcall.ll",
    "//llvm/test/CodeGen/PowerPC/ldexp.ll",
    "//llvm/test/CodeGen/PowerPC/llvm.frexp.ll",
    "//llvm/test/CodeGen/SystemZ/fp-half-libcall.ll",
    "//llvm/test/CodeGen/X86/exp10-libcall.ll",
    "//llvm/test/CodeGen/X86/ldexp-f80.ll",
    "//llvm/test/CodeGen/X86/ldexp-libcall.ll",
    "//llvm/test/CodeGen/X86/ldexp-not-readonly.ll",
    "//llvm/test/CodeGen/X86/ldexp-strict.ll",
    "//llvm/test/CodeGen/X86/ldexp-wrong-signature.ll",
    "//llvm/test/CodeGen/X86/ldexp-wrong-signature2.ll",
    "//llvm/test/CodeGen/X86/ldexp.ll",
    "//llvm/test/CodeGen/X86/llvm.frexp.f80.ll",
    "//llvm/test/CodeGen/X86/llvm.frexp.ll",
    "//llvm/test/CodeGen/X86/sincos-stack-args.ll",
    "//llvm/test/CodeGen/X86/sincos.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": []
}