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base repository: python/cpython
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head repository: eendebakpt/cpython
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compare: d2bf2d6
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  • 1 commit
  • 4 files changed
  • 2 contributors

Commits on Nov 1, 2026

  1. Analyze exception handlers in optimize_load_fast 

    Once the SETUP_* pseudo-instructions have been converted, exception
handler blocks are only reachable through the per-instruction exception
edges. optimize_load_fast() only followed jumps and fallthroughs, so the
code in exception handlers was never considered for the LOAD_FAST to
LOAD_FAST_BORROW conversion. Push the exception handler blocks onto the
work list as well.

END_ASYNC_FOR has a jump target that is only used for monitoring, so it
must not be treated as a jump, like in calculate_stackdepth().

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
    @eendebakpt @claude
    eendebakpt and claude committed Nov 1, 2026
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