gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/Analysis/CostModel/ARM/add-cast-vect.ll",
    "//llvm/test/Analysis/CostModel/ARM/cast_ldst.ll",
    "//llvm/test/Analysis/CostModel/ARM/freeshift.ll",
    "//llvm/test/Analysis/CostModel/ARM/gep.ll",
    "//llvm/test/Analysis/CostModel/ARM/immediates.ll",
    "//llvm/test/Analysis/CostModel/ARM/insertelement.ll",
    "//llvm/test/Analysis/CostModel/ARM/load-to-trunc.ll",
    "//llvm/test/Analysis/CostModel/ARM/load_store.ll",
    "//llvm/test/Analysis/CostModel/ARM/logicalop.ll",
    "//llvm/test/Analysis/CostModel/ARM/mul-cast-vect.ll",
    "//llvm/test/Analysis/CostModel/ARM/muls-in-smlal-patterns.ll",
    "//llvm/test/Analysis/CostModel/ARM/muls-in-umull-patterns.ll",
    "//llvm/test/Analysis/CostModel/ARM/select.ll",
    "//llvm/test/Analysis/CostModel/ARM/shl-cast-vect.ll",
    "//llvm/test/Analysis/CostModel/ARM/shuffle.ll",
    "//llvm/test/Analysis/CostModel/ARM/sub-cast-vect.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": []
}