Regressions on trunk at revision 176564 vs revision 176539

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/tree-ssa/vrp47.c scan-tree-dump-times vrp1 "x[^ ]* \^ 1" 1
FAIL: gcc.dg/tree-ssa/vrp47.c scan-tree-dump-times vrp1 "x[^ ]* \^ 1" 1
FAIL: gcc.target/i386/andor-2.c scan-assembler-not sete
FAIL: gcc.target/i386/andor-2.c scan-assembler-not sete

New passes: