- How do modern compilers choose which variables to put in registers? (langdev.stackexchange.com)
This is a very broad subject. The problem of deciding how to map a program with arbitrarily many variables onto a fixed set of registers is known as register allocation, and it has been the subject of much research, study, and engineering effort since the very earliest compilers. One of the canonical approaches, graph coloring, was first proposed in 1981. Countless other approaches and variants have been explored since then, and I cannot hope to cover the full breadth of the topic in a single answer.
- County conducts massive park cleanup (dispatchnews.com)
Snohomish County agencies spent Thursday and part of Friday last week engaged in a massive cleanup effort of the area known as Steelhead County Park, which is located just south of Sultan along the Skykomish River. Widely used by homeless and transient individuals as an illegal camping area, the total weight of the garbage removed from the wooded, riverside piece of property topped out at over 12 tons; roughly equivalent to that of a 38-foot, 84-passenger school bus.