NEW72072
DFG does worse than the old JIT for virtual calls 
https://bugs.webkit.org/show_bug.cgi?id=72072
Summary DFG does worse than the old JIT for virtual calls
Filip Pizlo
Reported 2011-11-10 16:01:53 PST
The DFG calls to a C function to do virtual calls, while the old JIT calls a JIT-generated thunk. The DFG should try to perform at least as well as the old JIT for virtual calls.
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Filip Pizlo
Comment 1 2011-11-10 16:02:55 PST
This depends on https://bugs.webkit.org/show_bug.cgi?id=72065 because we probably want the DFG to be able to specialize for virtual calls where non-JSFunctions are never the callee. To do that we need a PredictFunction facility.
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