superpmi: crossgen and PMI collection "clean phase" replay failures #47546
Description
Related: #47540
Part of the SuperPMI collection process is to "clean" the collection. This takes the collected assets, runs a SuperPMI replay on them, and delete the method contexts (functions) that fail to replay. Thus, the final result replay is error-free. As long as there aren't too many functions removed, we still get great coverage and utility from the collection.
However, each of these failures indicates a potential bug (or limitation) in SuperPMI. We should track down the failures, figure out why they occur, and fix SuperPMI or the JIT, VM, or JIT interface protocols, as necessary.
For a sample crossgen collection of the libraries using this command (Windows x64 Checked):
py c:\gh\runtime2\src\coreclr\scripts\superpmi.py collect --crossgen -output_mch_path c:\bugs\spmicollect4\win-x64-cg.mch -assemblies c:\gh\runtime2\artifacts\tests\coreclr\windows.x64.Checked\Tests\Core_Root
The "clean" phase encountered 680 failures (out of 197906 compilations).
category:eng-sys
theme:super-pmi
skill-level:expert
cost:large
impact:medium