[Bug 298295] llvm doesn't support MPX (bnd*) instructions (both llvm from base and from ports)

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 07 Sep 2026 19:37:30 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=298295

            Bug ID: 298295
           Summary: llvm doesn't support MPX (bnd*) instructions (both
                    llvm from base and from ports)
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: yuri@freebsd.org

Created attachment 274521
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=274521&action=edit
shar

See the attached reproducer (shar archive).

Problem exists in both base and llvm23.

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