[Bug middle-end/92037] [10 Regression] LTO bootstrap broken in selftests

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92037

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note my stage1 compiler was built with gcc 9.2.1 (r274748) and
STAGE1_CFLAGS=-O2
trying with -O0 stage1 now.