https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114932
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |pinskia at gcc dot gnu.org
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
> which is harder for prefetchers to follow.
This seems like a limitation in the HW prefetcher rather than anything else.
Maybe the cost model for addressing mode should punish base+index if so. Many
HW prefetchers I know of are based on the final VA (or even PA) rather looking
at the instruction to see if it increments or not ...
