JIT

gh-134584: Decref elimination for float ops in the JIT #3609

Job	Run time
Interpreter (Debug)	9m 25s
i686-pc-windows-msvc/msvc (Debug)	24m 17s
i686-pc-windows-msvc/msvc (Release)	13m 51s
x86_64-pc-windows-msvc/msvc (Debug)	22m 5s
x86_64-pc-windows-msvc/msvc (Release)	14m 43s
aarch64-pc-windows-msvc/msvc (Debug)	24m 18s
aarch64-pc-windows-msvc/msvc (Release)	18m 38s
x86_64-apple-darwin/clang (Debug)	16m 45s
x86_64-apple-darwin/clang (Release)	16m 56s
aarch64-apple-darwin/clang (Debug)	10m 18s
aarch64-apple-darwin/clang (Release)	9m 37s
x86_64-unknown-linux-gnu/gcc (Debug)	11m 2s
x86_64-unknown-linux-gnu/gcc (Release)	6m 30s
aarch64-unknown-linux-gnu/gcc (Debug)	7m 38s
aarch64-unknown-linux-gnu/gcc (Release)	6m 45s
	3h 32m 48s

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