https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94954

            Bug ID: 94954
           Summary: Wrong code generation for vec_pack_to_short_fp32
                    builtin for Power
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: wschmidt at gcc dot gnu.org
  Target Milestone: ---

This builtin was mis-implemented.  It is supposed to pack 32-bit floating-point
values into 16-bit floating-point form.  Instead, the values are converted to
unsigned 16-bit integer form.  This should be fixed in all supported releases.

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