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Re: Fix PR tree-optimization/28778, 29156, and 29415
The other patches would have been about 50% memory consumption
increase, and about 30-50% compile time slowdown (yeah, those are real
numbers, the number of vops just goes ballistic).
Try the attached and let me know if it helps please!
Also note that if we are willing to put off fixing these P1 PR's till
4.3, mem-ssa should make this a non-issue in terms of compile time and
Otherwise, i can keep fighting to try to get the number of nonlocal vars down