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bpo-46841: Use *inline* caching forBINARY_OP#31543

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markshannon merged 8 commits intopython:mainfrombrandtbucher:inline-caches
Feb 25, 2022

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@brandtbucherbrandtbucher commentedFeb 24, 2022•
edited by bedevere-bot
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Here's a sort-of-rough first pass at implementing this idea.BINARY_OP is easy to start with, since it only uses its cache for the adaptivecounter member. Initial perf testing doesn't show any impact, which I think is good (it means that the basic idea works well, even when the cacheisn't being used).

Related changes:

  • All of thedis utilities grow ashow_caches parameter, defaulting toFalse.
  • wordcode_helpers.h has been moved intocompile.c.

https://bugs.python.org/issue46841

Use 2 bytes for each instruction. Previously the number of bytes varied
by instruction.

..versionchanged::3.11
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Maybe don't document this until we are sure it's what we want?

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I'd prefer to keep it, and change it if/whendis changes (which is easy enough). That way we don't forget to document it.

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OK. Once we've started doing this we will need to complete it before the beta release anyway.

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Looks good in general.
I've commented onhttps://bugs.python.org/issue46841 about what interface we want to add to the dis module.

@brandtbucherbrandtbucher added the 🔨 test-with-buildbotsTest PR w/ buildbots; report in status section labelFeb 24, 2022
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🤖 New build scheduled with the buildbot fleet by@brandtbucher for commit1aa079c 🤖

If you want to schedule another build, you need to add the ":hammer: test-with-buildbots" label again.

@bedevere-botbedevere-bot removed the 🔨 test-with-buildbotsTest PR w/ buildbots; report in status section labelFeb 24, 2022
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👍
Let the process of inlining the caches commence

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