JIT

GH-126910: Make `_Py_get_machine_stack_pointer` return the actual stack pointer #6521

Job	Run time
Interpreter (Debug)	9m 46s
x86_64-unknown-linux-gnu/gcc (Release)	8m 52s
aarch64-unknown-linux-gnu/gcc (Release)	6m 39s
JIT with tail calling interpreter	4m 45s
x86_64-apple-darwin/clang (Release)	33m 15s
JIT without optimizations (Debug)	4m 3s
i686-pc-windows-msvc/msvc (Release)	15m 52s
x86_64-pc-windows-msvc/msvc (Debug)	24m 46s
aarch64-pc-windows-msvc/msvc (Release)	20m 36s
i686-pc-windows-msvc/msvc (Debug)	24m 1s
aarch64-apple-darwin/clang (Release)	14m 59s
x86_64-unknown-linux-gnu/gcc (Debug)	15m 17s
x86_64-apple-darwin/clang (Debug)	41m 42s
aarch64-pc-windows-msvc/msvc (Debug)	26m 28s
x86_64-pc-windows-msvc/msvc (Release)	16m 39s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 20s
Free-Threaded (Debug)	3m 25s
aarch64-apple-darwin/clang (Debug)	16m 48s
	4h 57m 13s

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