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kenjackson
on May 26, 2011
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Author of LuaJIT explains why compilers can't beat...
Some of those loads are unexpected. Can you verify that /O2 optimization is on (since release builds can, in theory, have optimizations off).
chrisb
on May 26, 2011
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Yes - one of the first things I checked - I've tried it with /O2 and /Ox
Same result both times.
beagle3
on May 27, 2011
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If you have the time to play with it some more ... I wonder, does gcc or clang or icc do a better job?
chrisb
on May 27, 2011
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Unfortunately I don't have any of these compilers ready to use at the moment, but I may try some of them in a week or two.
jerhewet
on May 27, 2011
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ICC is pretty spectacular (and sometimes awesome!) at optimization.
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