[Bug middle-end/86645] New: [9 Regression] UBSAN error: tree-cfg.c:7874:26: runtime error: load of value 4293224825, which is not a valid value for type 'dump_flag'

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86645

            Bug ID: 86645
           Summary: [9 Regression] UBSAN error: tree-cfg.c:7874:26:
                    runtime error: load of value 4293224825, which is not
                    a valid value for type 'dump_flag'
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
            Blocks: 63426
  Target Milestone: ---

Seen for any test-case.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
[Bug 63426] [meta-bug] Issues found with -fsanitize=undefined