This is precommitting a full reproducer of one of our motivating
examples. Looking at a full reproducer is helpful for further discussion
on DependenceAnalysis and Delinearization issues and the runtime
predicates discussion. I appreciate that this is a larger than usual
test case, but that is by design, because I think it is useful to look
at the whole thing with all of its complexities.
I have given useful names to all the relevant loop variables, and the
relevant blocks in these loops and their functions, but have
intentionally not done that for others as there are quite a few more.
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