https://sourceware.org/bugzilla/show_bug.cgi?id=27289

Alan Modra <amodra at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |NOTABUG
             Status|UNCONFIRMED                 |RESOLVED
           Assignee|unassigned at sourceware dot org   |amodra at gmail dot com

--- Comment #1 from Alan Modra <amodra at gmail dot com> ---
-1u is parsed as -(1u).  This is *not* negation of 1 as claimed by the usban
error but negation of an unsigned int.  Negation of an unsigned int is
perfectly well defined.  Looks like a bug in ubsan to me.

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