[Bug c++/79681] [6/7 Regression] ICE with constexpr and bitfield

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79681

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I think the problem is that BIT_FIELD_REF acts similarly to MEM_REF, it can
bypass several levels of nested handled components like ARRAY_REFs and
COMPONENT_REFs.  So most likely the second part of cxx_eval_bit_field_ref needs
to be recursive and handle also array CONSTRUCTORs (update the start each time
we recurse into yet another CONSTRUCTOR).