JIT

gh-134584: Decref elimination for float ops in the JIT #3606

Job	Run time
Interpreter (Debug)	9m 46s
i686-pc-windows-msvc/msvc (Debug)	20m 33s
i686-pc-windows-msvc/msvc (Release)	12m 8s
x86_64-pc-windows-msvc/msvc (Debug)	20m 51s
x86_64-pc-windows-msvc/msvc (Release)	11m 25s
aarch64-pc-windows-msvc/msvc (Debug)	23m 28s
aarch64-pc-windows-msvc/msvc (Release)	20m 7s
x86_64-apple-darwin/clang (Debug)	21m 23s
x86_64-apple-darwin/clang (Release)	11m 26s
aarch64-apple-darwin/clang (Debug)	11m 33s
aarch64-apple-darwin/clang (Release)	10m 42s
x86_64-unknown-linux-gnu/gcc (Debug)	10m 42s
x86_64-unknown-linux-gnu/gcc (Release)	6m 28s
aarch64-unknown-linux-gnu/gcc (Debug)	8m 37s
aarch64-unknown-linux-gnu/gcc (Release)	7m 43s
	3h 26m 52s

Provide feedback