[ACTIVITY] Weekly report for week 36

[Linaro Connect] - Wrote my presentation for the official track (on using Clang libtooling and ASTMatchers) - Started working on hackroom presentation on profile guided optimisation in LLVM. In both cases writing a presentation on something you don't know much about forces you do a lot of learning

[ACTIVITY] Weekly report for week 36

=== Work done during this 3-day week === * TCWG-1428 (Support arithmetic on FileCheck regex variable): + continue to rework patch, feature complete and most testcase pass + sent another external email to hammer a few details * Arm new starter welcome and related faff * GNU Tools Cauldron + tra