[Bug tree-optimization/127092] [17 Regression] Ranger folds CEIL_DIV_EXPR and ROUND_DIV_EXPR to zero for some nonnegative operands that satisfy a < b

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127092

Drea Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |17.0
   Last reconfirmed|                            |2026-08-26
           Assignee|unassigned at gcc dot gnu.org      |pinskia at gcc dot 
gnu.org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Easy fix:
operator_div::op1_op2_relation_effect needs a check on m_code being
EXACT_DIV_EXPR or TRUNC_DIV_EXPR for the VREL_LT case.