https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108402
--- Comment #4 from pefoley2 at pefoley dot com --- Yeah, I had a lot of trouble getting creduce to do something sane with the testcase that didn't wind up just deleting everything. I wound up trying delta, which got me a smaller, but still enormous repo. It should also be reproducible via make O=um ARCH=um allyesconfig drivers/spi/spi-stm32-qspi.o in a 6.1 linux kernel tree.
