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by tmtvl 138 days ago
Don't forget about branch prediction (GCC may have __builtin_expect, but that's not standard C).
1 comments
direwolf20 138 days ago
The compiler usually can't do anything about branch prediction. Expect is more about keeping cold paths out of the cache.
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pjmlp 138 days ago
Actually that was one of the problems with EPIC architectures, where compilers are expected to be the ones doing those kind of optimizations.
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