264c3d8738
into two parts - one to do the bsfl and the other to convert the result (base 0) to ffs()-like (base 1) in inline C. This enables the optimizer to be a lot smarter in certain cases, like where it knows that the argument is non-zero and we want ffs(known non zero arg) - 1. This appears to produce identical code to the old inline when the argument is unknown. |
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Makefile |