gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "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"
  ]
}
gn analyze input:
{
  "files": [
    "//libcxx/include/CMakeLists.txt",
    "//libcxx/include/__locale",
    "//libcxx/include/__memory/shared_count.h",
    "//libcxx/include/__memory/shared_ptr.h",
    "//libcxx/include/__mutex/once_flag.h",
    "//libcxx/include/future",
    "//libcxx/include/module.modulemap",
    "//libcxx/include/mutex",
    "//llvm/lib/Transforms/Vectorize/VectorCombine.cpp",
    "//llvm/test/Transforms/VectorCombine/X86/extract-binop-inseltpoison.ll",
    "//llvm/test/Transforms/VectorCombine/X86/extract-binop.ll",
    "//llvm/test/Transforms/VectorCombine/X86/extract-cmp.ll",
    "//llvm/test/Transforms/VectorCombine/X86/load-inseltpoison.ll",
    "//llvm/test/Transforms/VectorCombine/X86/load.ll",
    "//llvm/utils/gn/secondary/libcxx/include/BUILD.gn",
    "//mlir/include/mlir/Dialect/EmitC/IR/EmitC.td"
  ],
  "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": []
}
running all tests due to change to blacklisted file