https://issues.dlang.org/show_bug.cgi?id=13636

          Issue ID: 13636
           Summary: add runtime checks for undefined behavior
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: DMD
          Assignee: nobody@puremagic.com
          Reporter: bugzilla@digitalmars.com

Some undefined behaviors can only be detected at runtime, such as array bounds checking. An undefined behavior checker for C is ubsan:

http://developerblog.redhat.com/2014/10/16/gcc-undefined-behavior-sanitizer-ubsan/

Those relevant to D and not already in D can be added with a compile time switch.

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