[Bug c/80421] New: Case dispatch is scrambled in switch-statement

[ivan_j_johnson at msn dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80421

            Bug ID: 80421
           Summary: Case dispatch is scrambled in switch-statement
           Product: gcc
           Version: 5.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ivan_j_johnson at msn dot com
  Target Milestone: ---

Created attachment 41196
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41196&action=edit
Source code to demonstrate the bug

the exact version of GCC;
the system type;
the options given when GCC was configured/built;
the complete command line that triggers the bug;
the compiler output (error messages, warnings, etc.); and
the preprocessed file (*.i*) that triggers the bug, generated by adding
-save-temps to the complete compilation command, or, in the case of a bug
report for the GNAT front end, a complete set of source files (see below).