https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90316
--- Comment #22 from Than McIntosh <thanm at google dot com> --- Apologies for the delayed response (busy with other bugs yesterday). Testcase: hard to share the original... it has hundreds if not thousands of imported packages (it's an auto-generated Go file), and I'd have to figure out some way to sanitize all the identifiers, since there is a lot of Google-proprietary stuff there. I'm attaching the output of -fdump-statistics-stats. The insert iterations lines are: 135 pre "insert iterations == 1084" 1 135 pre "insert iterations == 1" 9 135 pre "insert iterations == 2" 1