JIT

gh-134584: Decref elimination for float ops in the JIT #3607

Job	Run time
Interpreter (Debug)	9m 47s
i686-pc-windows-msvc/msvc (Debug)	23m 13s
i686-pc-windows-msvc/msvc (Release)	14m 1s
x86_64-pc-windows-msvc/msvc (Debug)	22m 48s
x86_64-pc-windows-msvc/msvc (Release)	13m 46s
aarch64-pc-windows-msvc/msvc (Debug)	22m 34s
aarch64-pc-windows-msvc/msvc (Release)	17m 32s
x86_64-apple-darwin/clang (Debug)	20m 21s
x86_64-apple-darwin/clang (Release)	14m 40s
aarch64-apple-darwin/clang (Debug)	11m 54s
aarch64-apple-darwin/clang (Release)	9m 54s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 8s
x86_64-unknown-linux-gnu/gcc (Release)	6m 37s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 17s
aarch64-unknown-linux-gnu/gcc (Release)	5m 35s
	3h 31m 7s

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