Regressions on trunk at revision 226296 vs revision 226271

[H.J. Lu Intel64]

New failures:

New passes:
FAIL: gcc.dg/ubsan/object-size-9.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test
FAIL: gcc.dg/ubsan/object-size-9.c   -O2  output pattern test