Sorry, I forgot to answer to the list.
If the code is already there and some architectures can profit of it,
especially in inner loops - why not just make it an optimisation flag?
Nicu
Am 20.04.2015 um 16:41 schrieb Joachim Breitner:
Hi,
Am Montag, den 20.04.2015, 16:29 +0200 schrieb Sven Panne:
2015-04-19 9:44 GMT+02:00 Joachim Breitner<[email protected]>:
[...] So my question to the general audience: Is such branchless code really
better than the current, branching code? Can someone provide us with an
example that shows that it is better? Do I need to produce different
branchless assembly? [...]
Just a few war stories regarding this from the trenches (= Chrome's
JavaScript JIT):
thanks a lot.
The conclusion I draw from your mail, at last for our case, is:
Don’t bother (and keep the compiler code simple). Is that a correct
reading?
Greetings,
Joachim
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