[Bug tree-optimization/128277] New: [13/14/15/16/17 Regression] Compile-time hog in ccp1 at -O1 on a loop header with many latch edges since r13-5102

[lyfanyang at smail dot nju.edu.cn via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128277

            Bug ID: 128277
           Summary: [13/14/15/16/17 Regression] Compile-time hog in ccp1
                    at -O1 on a loop header with many latch edges since
                    r13-5102
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: lyfanyang at smail dot nju.edu.cn
  Target Milestone: ---

Created attachment 66030
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=66030&action=edit
small testcase