[Bug tree-optimization/125296] forwprop increases alignment requirements

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125296

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2026-05-13
                 CC|                            |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
           Keywords|                            |wrong-code

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed, this looks wrong.  (yes, C requires 's' to be properly aligned for
the type, but GIMPLE does not)

Likely forward_propagate_addr_expr_1 misses an appropriate check or the
code to adjust alignment back to the original requirement.