JIT

fix thread safety #64

Job	Run time
Interpreter (Debug)	7m 48s
Free-Threaded (Debug) (19)	12m 46s
i686-pc-windows-msvc/msvc (Debug)	18m 25s
i686-pc-windows-msvc/msvc (Release)	10m 45s
x86_64-pc-windows-msvc/msvc (Debug)	18m 39s
x86_64-pc-windows-msvc/msvc (Release)	11m 11s
aarch64-pc-windows-msvc/msvc (Debug)	5m 3s
aarch64-pc-windows-msvc/msvc (Release)	6m 21s
x86_64-apple-darwin/clang (Debug)	12m 55s
x86_64-apple-darwin/clang (Release)	10m 25s
aarch64-apple-darwin/clang (Debug)	8m 46s
aarch64-apple-darwin/clang (Release)	9m 41s
x86_64-unknown-linux-gnu/gcc (Debug)	8m 34s
x86_64-unknown-linux-gnu/gcc (Release)	5m 34s
aarch64-unknown-linux-gnu/gcc (Debug)	9s
aarch64-unknown-linux-gnu/gcc (Release)	9s
	2h 27m 11s

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