gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//llvm/test/Analysis/CostModel/AArch64/cast.ll",
    "//llvm/test/Analysis/CostModel/AArch64/no-sve-no-neon.ll",
    "//llvm/test/Analysis/CostModel/AArch64/sve-cast.ll",
    "//llvm/test/Analysis/CostModel/AArch64/sve-ext.ll",
    "//llvm/test/Analysis/CostModel/AArch64/sve-fpext.ll",
    "//llvm/test/Analysis/CostModel/AArch64/sve-fptoi.ll",
    "//llvm/test/Analysis/CostModel/AArch64/sve-fptrunc.ll",
    "//llvm/test/Analysis/CostModel/AArch64/sve-trunc.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": []
}