gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/config/gpu/entrypoints.txt",
    "//libc/config/linux/aarch64/entrypoints.txt",
    "//libc/config/linux/arm/entrypoints.txt",
    "//libc/config/linux/riscv/entrypoints.txt",
    "//libc/config/linux/x86_64/entrypoints.txt",
    "//libc/docs/math/index.rst",
    "//libc/include/llvm-libc-macros/CMakeLists.txt",
    "//libc/include/llvm-libc-macros/math-macros.h",
    "//libc/spec/stdc.td",
    "//libc/src/__support/FPUtil/ManipulationFunctions.h",
    "//libc/src/__support/FPUtil/dyadic_float.h",
    "//libc/src/math/CMakeLists.txt",
    "//libc/src/math/generic/CMakeLists.txt",
    "//libc/src/math/generic/ilogb.cpp",
    "//libc/src/math/generic/ilogbf.cpp",
    "//libc/src/math/generic/ilogbf128.cpp",
    "//libc/src/math/generic/ilogbl.cpp",
    "//libc/src/math/generic/llogb.cpp",
    "//libc/src/math/generic/llogbf.cpp",
    "//libc/src/math/generic/llogbf128.cpp",
    "//libc/src/math/generic/llogbl.cpp",
    "//libc/src/math/generic/logbf.cpp",
    "//libc/src/math/generic/logbf128.cpp",
    "//libc/src/math/ilogbf128.h",
    "//libc/src/math/llogb.h",
    "//libc/src/math/llogbf.h",
    "//libc/src/math/llogbf128.h",
    "//libc/src/math/llogbl.h",
    "//libc/src/math/logbf128.h",
    "//libc/test/src/math/smoke/CMakeLists.txt",
    "//libc/test/src/math/smoke/ILogbTest.h",
    "//libc/test/src/math/smoke/LogbTest.h",
    "//libc/test/src/math/smoke/ilogb_test.cpp",
    "//libc/test/src/math/smoke/ilogbf128_test.cpp",
    "//libc/test/src/math/smoke/ilogbf_test.cpp",
    "//libc/test/src/math/smoke/ilogbl_test.cpp",
    "//libc/test/src/math/smoke/llogb_test.cpp",
    "//libc/test/src/math/smoke/llogbf128_test.cpp",
    "//libc/test/src/math/smoke/llogbf_test.cpp",
    "//libc/test/src/math/smoke/llogbl_test.cpp",
    "//libc/test/src/math/smoke/logbf128_test.cpp"
  ],
  "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