https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116713

--- Comment #5 from pietro <pietro.gcc at sociotechnical dot xyz> ---
Created attachment 59210
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59210&action=edit
Add a blockage instruction before the prefetch

I did a few tests on sh4-elf and adding a blockage before the prefetch keeps
the prefetch in place. I'm attaching the patch to the PR because I'm not sure
I'll be able to do a full bootstrap and regtest on one of the main platforms.

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