`DECREF_INPUTS()` should be escaping

[brandtbucher]

Crash report

The interpreter generator doesn't set the HAS_ESCAPES_FLAG on instructions/micro-ops that use DECREF_INPUTS(). It should, though.

I think the issue is that we short-circuit our escape check to omit calls that are all-uppercase, since these are generally non-escaping macros:

cpython/Tools/cases_generator/analyzer.py

Lines 732 to 734 in 7c3692f

	if tkn.text.upper() == tkn.text:
	# simple macro
	continue

I'm not sure if it makes sense to just add a special case for DECREF_INPUTS here, or omit this heuristic and manually add things that fit this pattern to the non-escaping allowlist. There may also be other surgery involved to make this work correctly, since we want to avoid extra spills and reloads around this.

Linked PRs

• GH-131688: Mark instructions and uops with DECREF_INPUTS as escaping. #133501