https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102649
--- Comment #2 from David Haufe <davidhaufegcc at gmail dot com> --- I had assumed this would be the response. Unfortunately the source code involved is both large (1000+ object files in this build) and proprietary. The behavior we see where if we roll forward GIT and rebuild, and unrelated changes "fix" the problem, makes it seem futile to develop an isolated test case. I can provide the assembly for the functions that highlight the error if that would be beneficial? Not sure how helpful that would be though. Are there any other best practices in a case like this one?