Let suppose IBM make processors with predicatble instruction speed, no
heuristics etc , as it had been.
We are back (with assembler) again ?
Interesting that they didn't use XC, isn't it? If you spend any time
looking at XLC generated code you will see lots of interesting stuff.
Of particular interest is some of the loop unwinding optimizations.
After a while you start to wonder if you should ever write in
assembler again, since only IBM knows what instruction heuristics
slide through the pipelines the best.
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