gh-106529: Split FOR_ITER_RANGE into uops #106638
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gvanrossum
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gvanrossum
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(Plus a skipped cache entry.)
This was remarkably straightforward
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I will fix the conflict and merge this. |
(I wasn't updating trace_length in this case.)
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New benchmark says it's no faster or slower (in Tier 1, that is). That's good news. |
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Ignore the commit history, this is a pile of different experiments.
Benchmark says 1% slower. Now, that's for the version where the "is it exhausted?" check pushes a
NULLonto the stack if it is, and the next value if it isn't, which isn't the latest design. So I'm not sure whether I care. If Mark likes the latest version I'll re-run the benchmarks.(Benchmarking says nothing about the Tier 2 interpreter speed, since that's off except during a few tests.)