https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93408

            Bug ID: 93408
           Summary: PPC: Provide intrinsics for cache prefetch
                    instructions
           Product: gcc
           Version: 8.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: memmerto at ca dot ibm.com
  Target Milestone: ---

From https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93177

> > > > __protected_stream_set()
> > > > __protected_stream_count()
> > > > __protected_stream_count_depth() // currently not implemented in gcc
> > > > __protected_stream_go()
> > > 
> > > Those are pretty specific to CBE I think?
> > 
> > No.  They are implemented on POWER5 and above (ISA 2.02), and are useful in
> > managing cache prefetch behaviour.
> 
> Open a separate feature request for these then, please.

This is that request.

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