JIT

gh-151289: specialize shrinking int subtraction #6985

Job	Run time
Interpreter (Debug)	14m 26s
Free-Threaded (Debug)	2m 21s
JIT without optimizations (Debug)	3m 50s
JIT with stress testing (Debug)	2m 57s
JIT with tail calling interpreter	3m 44s
aarch64-unknown-linux-gnu/gcc (Release)	6m 32s
i686-pc-windows-msvc/msvc (Debug)	21m 19s
aarch64-apple-darwin/clang (Release)	13m 19s
x86_64-unknown-linux-gnu/gcc (Release)	9m 3s
aarch64-pc-windows-msvc/msvc (Debug)	25m 1s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 12s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 55s
x86_64-apple-darwin/clang (Debug)	44m 0s
x86_64-apple-darwin/clang (Release)	25m 27s
x86_64-pc-windows-msvc/msvc (Release)	15m 28s
aarch64-apple-darwin/clang (Debug)	16m 18s
i686-pc-windows-msvc/msvc (Release)	15m 26s
x86_64-pc-windows-msvc/msvc (Debug)	28m 14s
aarch64-pc-windows-msvc/msvc (Release)	19m 14s
	4h 50m 46s

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