Regressions on master at commit r16-4241 vs commit r16-4240 on Linux/x86_64 New failures: FAIL: libgomp.fortran/async_io_1.f90 -Os execution test
New passes: FAIL: gcc.dg/lto/save-temps c_lto_save-temps_0.o-c_lto_save-temps_0.o link, -O -flto -save-temps
