NEW 142921
DFG IR should represent the various of effects of put_by_id in a single node 
https://bugs.webkit.org/show_bug.cgi?id=142921
Summary DFG IR should represent the various of effects of put_by_id in a single node
Filip Pizlo
Reported 2015-03-20 14:20:09 PDT
Currently put_by_id may turn into a three-node lowering: AllocatePropertyStorage, PutByOffset, PutStructure. This barely works. We should use a single node ("PutByOffsetWithPropertyAllocationTransition", or something with a shorter name) so that code motion of things that GC and exit doesn't have to tiptoe around this.
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Filip Pizlo
Comment 1 2015-03-20 15:03:37 PDT
An alternate approach might be: https://bugs.webkit.org/show_bug.cgi?id=142924
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