Regressions on trunk at revision 218874 vs revision 218871

[H.J. Lu Intel64]

New failures:
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff045440fc with insufficient space for an object of type 'char'
FAIL: gcc.target/i386/pr64291-1.c execution test
FAIL: gcc.target/i386/pr64291-1.c (test for excess errors)

New passes:
FAIL: c-c++-common/ubsan/object-size-9.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  output pattern test, is c-c++-common/ubsan/object-size-9.c:21:11: runtime error: load of address 0x7fff5ec245dc with insufficient space for an object of type 'char'