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gh-104584: Baby steps towards generating and executing traces (#105924)

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Added a new, experimental, tracing optimizer and interpreter (a.k.a. "tier 2"). This currently pessimizes, so don't use yet -- this is infrastructure so we can experiment with optimizing passes. To enable it, pass ``-Xuops`` or set ``PYTHONUOPS=1``. To get debug output, set ``PYTHONUOPSDEBUG=N`` where ``N`` is a debug level (0-4, where 0 is no debug output and 4 is excessively verbose).

All of this code is likely to change dramatically before the 3.13 feature freeze. But this is a first step.
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Guido van Rossum
2023-06-26 19:02:57 -07:00
committed by GitHub
parent d3af83b934
commit 51fc725117
21 changed files with 2559 additions and 305 deletions
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@@ -86,6 +86,7 @@ Parser/token.c generated
Programs/test_frozenmain.h generated
Python/Python-ast.c generated
Python/generated_cases.c.h generated
Python/executor_cases.c.h generated
Python/opcode_targets.h generated
Python/stdlib_module_names.h generated
Tools/peg_generator/pegen/grammar_parser.py generated