JIT

gh-134584: Decref elimination for float ops in the JIT #3570

Job	Run time
Interpreter (Debug)	9m 34s
i686-pc-windows-msvc/msvc (Debug)	24m 47s
i686-pc-windows-msvc/msvc (Release)	12m 34s
x86_64-pc-windows-msvc/msvc (Debug)	20m 47s
x86_64-pc-windows-msvc/msvc (Release)	12m 28s
aarch64-pc-windows-msvc/msvc (Debug)	22m 48s
aarch64-pc-windows-msvc/msvc (Release)	17m 46s
x86_64-apple-darwin/clang (Debug)	14m 43s
x86_64-apple-darwin/clang (Release)	11m 57s
aarch64-apple-darwin/clang (Debug)	11m 15s
aarch64-apple-darwin/clang (Release)	10m 14s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 12s
x86_64-unknown-linux-gnu/gcc (Release)	7m 17s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 1s
aarch64-unknown-linux-gnu/gcc (Release)	6m 28s
	3h 21m 51s

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