[Bug tree-optimization/126497] New: ICE with bitint(1)

"ktkachov at gcc dot gnu.org via Gcc-bugs" <[email protected]> Thu, 30 Jul 2026 07:06:53 +0000

Newsgroups	gmane.comp.gcc.bugs
Message-ID	<[email protected]/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126497

            Bug ID: 126497
           Summary: ICE with bitint(1)
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ktkachov at gcc dot gnu.org
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---

typedef unsigned _BitInt(1) U;

U ge (U a) { U t; t = a >= 1uwb; return t; }   /* ICE */
U eq (U a) { U t; t = a == 1uwb; return t; }   /* ICE */

ICEs at all levels