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numdagiselretries
2010 May 14
3
[LLVMdev] selection dag speedups / llc speedups
...mple, simply switching on "-fast-isel" (roughly 17%
drop in code quality for some of my benchmarks) or "-regalloc=local/fast"
(roughly 2x slower for some of my benchmarks) is, unfortunately, not an
acceptable option.
I noticed that a semi-recent commit added the
"STATISTIC(NumDAGIselRetries,"Number of times dag isel has to try another
path");" as well as a sorting change in DAGISelEmitter.cpp. This suggests to
me that there is work being done. Are there other similar efforts, but
perhaps aiming for bigger gains, that I should be aware of? From the other
end, are there...