JIT

gh-134584: Decref elimination for float ops in the JIT #3557

Job	Run time
Interpreter (Debug)	9m 53s
i686-pc-windows-msvc/msvc (Debug)	22m 33s
i686-pc-windows-msvc/msvc (Release)	11m 52s
x86_64-pc-windows-msvc/msvc (Debug)	20m 52s
x86_64-pc-windows-msvc/msvc (Release)	12m 5s
aarch64-pc-windows-msvc/msvc (Debug)	23m 37s
aarch64-pc-windows-msvc/msvc (Release)	20m 42s
x86_64-apple-darwin/clang (Debug)	17m 17s
x86_64-apple-darwin/clang (Release)	14m 12s
aarch64-apple-darwin/clang (Debug)	10m 59s
aarch64-apple-darwin/clang (Release)	10m 18s
x86_64-unknown-linux-gnu/gcc (Debug)	10m 51s
x86_64-unknown-linux-gnu/gcc (Release)	7m 44s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 46s
aarch64-unknown-linux-gnu/gcc (Release)	6m 6s
	3h 26m 47s

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