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138393
2020 Mar 16
2
Redundant copies
Hi Sjoerd,
I'm already using RDA in the pass I mentioned and it works great. Thanks
Sam!
Regarding the root cause, I didn't see anything obviously suboptimal not in
the copy coalescing or the register allocation, at least in my previous
example. Alternatively we might want to improve what we pass onto RA: i.e.
remove the redundant copy earlier. At this point however it doesn't