Regressions on trunk at revision 221069 vs revision 221064

[H.J. Lu Intel64 Core i7]

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:21:10: runtime error: load of address 0x7ffccbf76c9c with insufficient space for an object of type 'char'

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:21:10: runtime error: load of address 0x7ffddb157bfc with insufficient space for an object of type 'char'
FAIL: gcc.dg/ipa/ipa-cp-1.c scan-ipa-dump cp "Alignment 2"
FAIL: gcc.dg/ipa/ipa-cp-1.c scan-ipa-dump cp "Alignment 2"
FAIL: gcc.dg/ipa/ipa-cp-2.c scan-ipa-dump cp "Alignment 8, misalignment 4"
FAIL: gcc.dg/ipa/ipa-cp-2.c scan-ipa-dump cp "Alignment 8, misalignment 4"