20:08:38stassatswhat if transform-call doesn't perform full lambda transformation but directly transforms into a let
20:09:18stassatswhich would save a lot of intermediate steps for transforms with &key
20:17:04stassatsunknown key args would be a problem, but that rarely happens, could fall back the full convert-lambda
20:37:53stassatsthough even LET isn't transformed into a let-call
22:27:54scymtymstassats: couldn't the sb comparison at the end of PACK-WIRED-TN been done as (eq sb (l-t-v (sb-or-loose 'control-stack)))? (saw the STRING= while making sb-sprof flamegraph in mcclim)