Process stuck in `Run<EscapeAnalysisPhase>()`

[Patric Lemo]

I am using v8 9.1.269.40. 

When optimizing a function, the size is within 30K, in the background.

It takes 250 seconds to finish `Run<EscapeAnalysisPhase>()`

These codes `ReduceFrom` loop more than 1,000,000 times.

Is this a known issue or fixed in newer versions? 

[Patric Lemo]

Source code of the function 

[Marja Hölttä]

Hi,

Thanks for reporting this!

Could you try out with a more recent V8 version, and if the problem persists, file a bug in crbug.com/v8 with a repro case attached as text (preferably after all transformations have been done by the compilation pipeline you're using). That would be helpful for debugging this on our end. Thanks!

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[Patric Lemo]

I tried 10.9.194.4 and then seems to be fixed.   

Since I don't plan to upgrade v8 recently, can I turn on `--no-turbo-escape`?  I've done some simple tests, and in my scenario, there is a small performance improvement. I'm not sure if there are any other issues.