Regressions on trunk at revision 219122 vs revision 219119

[H.J. Lu ia32]

New failures:
FAIL: 28_regex/algorithms/regex_match/ecma/char/backref.cc execution test

New passes:
FAIL: gcc.dg/vect/slp-9.c -flto -ffat-lto-objects  scan-tree-dump-times vect "vectorized 1 loops" 1
FAIL: gcc.dg/vect/slp-9.c -flto -ffat-lto-objects  scan-tree-dump-times vect "vectorizing stmts using SLP" 1
FAIL: gcc.dg/vect/slp-9.c scan-tree-dump-times vect "vectorized 1 loops" 1
FAIL: gcc.dg/vect/slp-9.c scan-tree-dump-times vect "vectorizing stmts using SLP" 1