Thanks, this does indeed look like exact issue I'm referring to. I don't think it ever made it in to release, though. Despite apparent agreement that it's a use

Thanks, this does indeed look like exact issue I'm referring to. I don't think it ever made it in to release, though. Despite apparent agreement that it's a useful optimization, it appears the final result of the two-month 59-message thread is that after many reworks of the patch and lots of feedback, the OP eventually gives up on getting it included due to interactions with another feature: http://gcc.1065356.n8.nabble.com/Fwd-PATCH-Scheduling-result-adjustment-to-enable-macro-fusion-tc965571.html http://gcc.1065356.n8.nabble.com/Fwd-PATCH-Scheduling-result...