JIT

gh-134584: Decref elimination for float ops in the JIT #3591

Job	Run time
Interpreter (Debug)	9m 33s
i686-pc-windows-msvc/msvc (Debug)	4m 55s
i686-pc-windows-msvc/msvc (Release)	4m 47s
x86_64-pc-windows-msvc/msvc (Debug)	4m 32s
x86_64-pc-windows-msvc/msvc (Release)	4m 27s
aarch64-pc-windows-msvc/msvc (Debug)	4m 46s
aarch64-pc-windows-msvc/msvc (Release)	6m 11s
x86_64-apple-darwin/clang (Debug)	14m 21s
x86_64-apple-darwin/clang (Release)	9m 41s
aarch64-apple-darwin/clang (Debug)	11m 43s
aarch64-apple-darwin/clang (Release)	10m 20s
x86_64-unknown-linux-gnu/gcc (Debug)	10m 45s
x86_64-unknown-linux-gnu/gcc (Release)	6m 27s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 5s
aarch64-unknown-linux-gnu/gcc (Release)	5m 41s
	1h 55m 14s

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