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Re:V8: A Tale of TurboFan by wisebit on Thursday March 02, 2017 @10:51AM (#13774917)
>Looking at it naively, it seems to follow the rules for the arguments object in Crankshaft

I've never managed to find a good source on the V8 internals and how to target these optimizations (the "rules for the arguments object" the author alludes to).

Any recommendations?

Re:V8: A Tale of TurboFan by cwmma on Thursday March 02, 2017 @11:10AM (#13775131)
Re:V8: A Tale of TurboFan by wisebit on Thursday March 02, 2017 @12:32PM (#13776103)
Thanks! The linked repo [1] is also great:

[1] https://github.com/vhf/v8-bailout-reasons

Re:V8: A Tale of TurboFan by vhf on Thursday March 02, 2017 @12:50PM (#13776322)
They are complementary resources, "Optimization killers" helps you avoid pitfalls in practice, "v8-bailout-reasons" tries to document and explain the various Crankshaft bailouts.