bitint: Fix up big-endian handling in limb_access [PR122714]
The bitint_extended changes in limb_access broke bitint_big_endian.
As we sometimes (for bitint_extended) access the MEM_REFs using
atype rather than m_limb_type, for big-endian we need to adjust
the MEM_REFs offset if atype has smaller TYPE_SIZE_UNIT than m_limb_size.
2025-11-27 Jakub Jelinek <jakub@redhat.com>
PR target/122714
* gimple-lower-bitint.cc (bitint_large_huge::limb_access): Adjust
MEM_REFs offset for bitint_big_endian if ltype doesn't have the
same byte size as m_limb_type.