https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88450
--- Comment #21 from Bence Szabó <sbence92 at gmail dot com> --- Bootstrap succeeds with trunk + gcc9-pr88450.patch. Ran gcc testsuite, all stackalignment tests pass and so does the test added by r266345. The CPU was an Intel Coffee Lake so avx and avx2 is supported but avx512 is not.
