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Author: markshannon

Misc/NEWS.d/next/Core_and_Builtins/2025-06-20-16-03-59.gh-issue-135379.eDg89T.rst

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+Implement a limited form of register allocation know as "top of stack
+caching" in the JIT. It works by keeping 0-3 of the top items in the stack
+in registers. The code generator generates multiple versions of thos uops
+that do not escape and are relatively small. During JIT compilation, the
+copy that produces the least memory traffic is selected, spilling or
+reloading values when needed.