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threshhold
2018 Nov 06
4
top-down vs. bottom-up list scheduling
...these kind of codes, but not for
some other benchmarks, and so solving this issue not just a matter of
defaulting to a new scheduling policy.
I am thinking about prototyping an approach where we start with the bottom-up
approach (under a new misched option), but when a register-pressure/live-range
trashhold value is reached, we bail and fall back to the top-down approach.
This is my first rough idea, but I haven't looked at this problem for very
long. My first few data points is suggesting this might be benificial, but I
could be missing a lot here. And also I am sure that I am looking at an
old/c...