JIT

gh-134584: Decref elimination for float ops in the JIT #3589

Job	Run time
Interpreter (Debug)	9m 55s
i686-pc-windows-msvc/msvc (Debug)	2m 49s
i686-pc-windows-msvc/msvc (Release)	3m 18s
x86_64-pc-windows-msvc/msvc (Debug)	3m 10s
x86_64-pc-windows-msvc/msvc (Release)	2m 19s
aarch64-pc-windows-msvc/msvc (Debug)	3m 41s
aarch64-pc-windows-msvc/msvc (Release)	3m 37s
x86_64-apple-darwin/clang (Debug)	3m 18s
x86_64-apple-darwin/clang (Release)	3m 34s
aarch64-apple-darwin/clang (Debug)	2m 29s
aarch64-apple-darwin/clang (Release)	1m 54s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 23s
x86_64-unknown-linux-gnu/gcc (Release)	6m 21s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 22s
aarch64-unknown-linux-gnu/gcc (Release)	6m 30s
	1h 11m 40s

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