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Phoenix666 [soylentnews.org] writes:

The "jump threading" compiler optimization [tuxen.de] (aka -fthread-jump) turns conditional into unconditional branches on certain paths at the expense of code size. For hardware with branch prediction, speculative execution, and prefetching, this can greatly improve performance. However, there is no scientific publication or documentation at all. The Wikipedia article is very short and incomplete. Here is a more comprehensive description.

An illustrated treatment of the common code structure.

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