JIT

Reference implementation for PEP 828 #6428

Job	Run time
JIT with tail calling interpreter	5m 0s
x86_64-apple-darwin/clang (Debug)	46m 14s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 5s
Free-Threaded (Debug)	3m 55s
Interpreter (Debug)	12m 1s
JIT without optimizations (Debug)	3m 32s
aarch64-apple-darwin/clang (Debug)	13m 13s
aarch64-apple-darwin/clang (Release)	13m 22s
x86_64-apple-darwin/clang (Release)	24m 47s
x86_64-pc-windows-msvc/msvc (Release)	15m 58s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 31s
i686-pc-windows-msvc/msvc (Release)	15m 31s
aarch64-unknown-linux-gnu/gcc (Release)	6m 34s
i686-pc-windows-msvc/msvc (Debug)	30m 1s
aarch64-pc-windows-msvc/msvc (Release)	18m 40s
aarch64-pc-windows-msvc/msvc (Debug)	25m 54s
x86_64-unknown-linux-gnu/gcc (Release)	8m 25s
x86_64-pc-windows-msvc/msvc (Debug)	22m 26s
	4h 49m 9s

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