gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/shared/math.h",
    "//libc/shared/math/fmod.h",
    "//libc/shared/math/fmodbf16.h",
    "//libc/shared/math/fmodf.h",
    "//libc/shared/math/fmodf128.h",
    "//libc/shared/math/fmodf16.h",
    "//libc/shared/math/fmodl.h",
    "//libc/shared/math/modf.h",
    "//libc/shared/math/modfbf16.h",
    "//libc/shared/math/modff.h",
    "//libc/shared/math/modff128.h",
    "//libc/shared/math/modff16.h",
    "//libc/shared/math/modfl.h",
    "//libc/src/__support/FPUtil/ManipulationFunctions.h",
    "//libc/src/__support/FPUtil/generic/FMod.h",
    "//libc/src/__support/math/CMakeLists.txt",
    "//libc/src/__support/math/fmod.h",
    "//libc/src/__support/math/fmodbf16.h",
    "//libc/src/__support/math/fmodf.h",
    "//libc/src/__support/math/fmodf128.h",
    "//libc/src/__support/math/fmodf16.h",
    "//libc/src/__support/math/fmodl.h",
    "//libc/src/__support/math/modf.h",
    "//libc/src/__support/math/modfbf16.h",
    "//libc/src/__support/math/modff.h",
    "//libc/src/__support/math/modff128.h",
    "//libc/src/__support/math/modff16.h",
    "//libc/src/__support/math/modfl.h",
    "//libc/src/math/generic/CMakeLists.txt",
    "//libc/src/math/generic/fmod.cpp",
    "//libc/src/math/generic/fmodbf16.cpp",
    "//libc/src/math/generic/fmodf.cpp",
    "//libc/src/math/generic/fmodf128.cpp",
    "//libc/src/math/generic/fmodf16.cpp",
    "//libc/src/math/generic/fmodl.cpp",
    "//libc/src/math/generic/modf.cpp",
    "//libc/src/math/generic/modfbf16.cpp",
    "//libc/src/math/generic/modff.cpp",
    "//libc/src/math/generic/modff128.cpp",
    "//libc/src/math/generic/modff16.cpp",
    "//libc/src/math/generic/modfl.cpp",
    "//libc/test/shared/CMakeLists.txt",
    "//libc/test/shared/shared_math_constexpr_test.cpp",
    "//libc/test/shared/shared_math_test.cpp",
    "//utils/bazel/llvm-project-overlay/libc/BUILD.bazel"
  ],
  "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