Is there a way to find out when perl precompiles a regex and when it does not ?

In reply to Re^2: Is regcomp slower in 5.16.2 than in 5.8.8. How to speed things up ? by PerlBhikkhuni
in thread Is regcomp slower in 5.16.2 than in 5.8.8. How to speed things up ? by PerlBhikkhuni

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