[Bug c++/120471] [12/13/14/15/16 regression] -fsanitize=undefined causes read of uninitialized variable when accessing element in an array at -O0 level

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120471

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org
             Status|NEW                         |ASSIGNED

--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 61733
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61733&action=edit
gcc16-pr120471.patch

Untested fix.