bob rogers rogersperl6rgrjrdyndnsorg coleda date thu 7 aug 2008 113034 0400 thu aug 7 2008 1126 bob rogers wrote suggested null register allocator would globally better idea use case think debugging particularly register allocator thats still important bob rogers httprgrjrdyndnsorg convinced debugging register allocation inside pir makes sense coke coleda think tool gives hll compiler control register allocation advantage may huge zero cost pretty low chromatic date thu 7 aug 2008 095837 0700 theory thats vanilla register allocator practice somehow something sometimes turns graphbased allocator couple bugs pge trips occasionally c suggested new allocator mapped eg pn pn without compaction done vanilla register allocator currently two mappings hll var parrot register var p register p register neither recorded anywhere gleaned debugging output produced compilers able dispense one demand would useful debugging imho course someday mappings need recorded hll debuggers use thats another story bob thu 07 aug 2008 184942 0400 perl 57636 todopdd19 document reason unique_reg flag