[Bug tree-optimization/101830] [12 Regression] Incorrect error messages beginning with r12-2591 (backward jump threader)

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101830

--- Comment #8 from Martin Sebor <msebor at gcc dot gnu.org> ---
Created attachment 51298
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51298&action=edit
Change to test case that avoids -Warray-bounds.

The attached change to test case avoids all -Warray-bounds instances.