[Bug middle-end/126153] [13/14/15/16/17 Regression] [csmith] runtime crash with -O3 -ftrivial-auto-var-init=zero

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126153

--- Comment #22 from rguenther at suse dot de <rguenther at suse dot de> ---
On Wed, 2 Sep 2026, jamborm at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126153
> 
> --- Comment #21 from Martin Jambor <jamborm at gcc dot gnu.org> ---
> Bah, IPA-CP is not really supposed to try anything at non-byte-aligned offsets.
>  The (rather long-term) plan is to encode stuff in bytes to make WPA structures
> smaller, which is why ipa_argagg_value_list uses bytes.  I am surprised
> bit-aligned accesses even got this far :-/

Heh.  I wonder if a truncated bit position (excluding very large offsets)
is better in practice though.  bitfields do matter - unless we want to
track them in (implicitly?) lowered form.