[Bug c/120573] New: Inconsistent array size overflow behavior between -O0 and others optimizations: code compiles at -O1、-O2、O3ad, but fails at -O0

[2023091106 at cauc dot edu.cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120573

            Bug ID: 120573
           Summary: Inconsistent array size overflow behavior between -O0
                    and others optimizations: code compiles at
                    -O1、-O2、O3ad, but fails at -O0
           Product: gcc
           Version: 14.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: 2023091106 at cauc dot edu.cn
  Target Milestone: ---