Regressions on trunk at revision 221805 vs revision 221790

[H.J. Lu ia32]

New failures:
FAIL: g++.dg/torture/pr64378.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (internal compiler error)
FAIL: g++.dg/torture/pr64378.C   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)

New passes: