https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117990
--- Comment #6 from Li Pan <pan2.li at intel dot com> --- Add (mem:BLK (scratch)) to strided load define_insn can help to fix this issue, as (mem:BLK (scratch)) is considered to alias all other memories. In theory, we can do even more accurate alias analysis here, like verify each location stride load touched. Consider stage-3 and most RVV define insn leverage the (mem:BLK (scratch)), it can add (mem:BLK (scratch)) to strided load too here. I will test if there is any surprise.
