Stephan Brumme
Author of bits.stephan-brumme.com, a collection of bit-manipulation / low-level tricks where each technique ships with assembler output, benchmarks, and downloadable source — the benchmarked companion to bit-twiddling-hacks. Sources here: xor-swap and branchless-abs.
His pages are notable for measuring the tricks rather than assuming them, which is why several of his entries conclude the classic trick is slower than the naive code on modern CPUs — the empirical backbone of this spoke’s “the compiler/hardware usually wins now” thesis.
Related
xor-swap · branchless-abs · bit-manipulation · branchless-programming