gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/config/baremetal/aarch64/entrypoints.txt",
    "//libc/config/baremetal/aarch64/headers.txt",
    "//libc/config/baremetal/arm/entrypoints.txt",
    "//libc/config/baremetal/arm/headers.txt",
    "//libc/config/baremetal/riscv/entrypoints.txt",
    "//libc/config/baremetal/riscv/headers.txt",
    "//libc/config/linux/aarch64/entrypoints.txt",
    "//libc/config/linux/aarch64/headers.txt",
    "//libc/config/linux/arm/entrypoints.txt",
    "//libc/config/linux/arm/headers.txt",
    "//libc/config/linux/riscv/entrypoints.txt",
    "//libc/config/linux/riscv/headers.txt",
    "//libc/config/linux/x86_64/entrypoints.txt",
    "//libc/config/linux/x86_64/headers.txt",
    "//libc/hdr/CMakeLists.txt",
    "//libc/hdr/netinet_in_macros.h",
    "//libc/hdr/regex_macros.h",
    "//libc/hdr/types/CMakeLists.txt",
    "//libc/hdr/types/in_addr_t.h",
    "//libc/hdr/types/regex_t.h",
    "//libc/hdr/types/regmatch_t.h",
    "//libc/hdr/types/regoff_t.h",
    "//libc/hdr/types/struct_in_addr.h",
    "//libc/include/CMakeLists.txt",
    "//libc/include/llvm-libc-macros/CMakeLists.txt",
    "//libc/include/llvm-libc-macros/regex-macros.h",
    "//libc/include/llvm-libc-types/CMakeLists.txt",
    "//libc/include/llvm-libc-types/regex_t.h",
    "//libc/include/llvm-libc-types/regmatch_t.h",
    "//libc/include/llvm-libc-types/regoff_t.h",
    "//libc/include/regex.yaml",
    "//libc/src/CMakeLists.txt",
    "//libc/src/__support/CMakeLists.txt",
    "//libc/src/arpa/inet/CMakeLists.txt",
    "//libc/src/arpa/inet/inet_addr.cpp",
    "//libc/src/arpa/inet/inet_addr.h",
    "//libc/src/arpa/inet/inet_aton.h",
    "//libc/src/regex/CMakeLists.txt",
    "//libc/src/regex/regcomp.cpp",
    "//libc/src/regex/regcomp.h",
    "//libc/src/regex/regerror.cpp",
    "//libc/src/regex/regerror.h",
    "//libc/src/regex/regexec.cpp",
    "//libc/src/regex/regexec.h",
    "//libc/src/regex/regfree.cpp",
    "//libc/src/regex/regfree.h",
    "//libc/test/src/CMakeLists.txt",
    "//libc/test/src/regex/CMakeLists.txt",
    "//libc/test/src/regex/regerror_test.cpp",
    "//libc/test/src/regex/regex_basic_test.cpp"
  ],
  "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": []
}
running all tests due to change to blacklisted file