https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103423
--- Comment #3 from hubicka at kam dot mff.cuni.cz --- > Oh, you are right, then it started with r12-2353-g8da8ed435e9f01b3. OK so mine, (as I sort of suspected :) If it is easy for you to get -ftime-report of before and after build, it would be great to attach it. I will try to reproduce this with -fno-ipa-modref on current tree.