Paulo Pinto:
http://cgo.org/cgo2014/conference/program/
I like the Partial escape analysis for Java (the compiler doesn't heap allocate an object only in the most frequent code paths inside a function), and optimization usable for D too:
http://cgo.org/cgo2014/wp-content/uploads/2013/05/Partial_Escape_Analysis.pdf Bye, bearophile
