Regressions on trunk at revision 218855 vs revision 218817

[H.J. Lu ia32]

New failures:

New passes:
FAIL: c-c++-common/ubsan/object-size-10.c   -O2  execution test
FAIL: c-c++-common/ubsan/object-size-10.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: c-c++-common/ubsan/object-size-10.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.target/i386/pr64110.c (internal compiler error)
FAIL: gcc.target/i386/pr64110.c (test for excess errors)