[Bug jit/66812] jit code-generation example that unexpectedly required -fno-strict-aliasing to work

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66812

--- Comment #8 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Root cause found: it's because of the langhook:
  LANG_HOOKS_GET_ALIAS_SET
which it looks like I need to implement for libgccjit.