[issue24915] Profile Guided Optimization improvements (better training, llvm support, etc)

[Gregory P. Smith]

Gregory P. Smith added the comment:

i'm updating the title to be more accurate.

turning it on by default is likely not desirable as the makefile is primarily used by developers who are iterating on changes.

but having it use a good workload (regrtest) and work with llvm and os x are good. :)

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nosy: +gregory.p.smith
title: Profile Guided Optimization active by-default -> Profile Guided Optimization improvements (better training, llvm support, etc)

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<http://bugs.python.org/issue24915>
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