142924 2015-03-20 15:03:20 -0700 FTL (and maybe DFG) should have GC deferred indefinitely in the slow paths of any node that doesn't clobber world 2015-03-20 15:05:22 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) All All NEW P2 Normal --- 142920 1 fpizlo webkit-unassigned barraclough benjamin ggaren mark.lam mhahnenb mmirman msaboff nrotem oliver saam sam oldest_to_newest 1078961 0 fpizlo 2015-03-20 15:03:20 -0700 And we should insert fast "should GC?" checks on loop backedges and function exits, of any code that could GC but not clobber world. Those insertion points should be computed before SSA conversion, so that SSA could create loops without worrying about creating new GC points. This can be viewed as an alternate solution to most of the issues that https://bugs.webkit.org/show_bug.cgi?id=142921 would fix. 1078963 1 fpizlo 2015-03-20 15:04:13 -0700 One of the nice things about this is that it will allow us to do more store barrier elimination.