Regressions on trunk at revision 206008 vs revision 205997

[H.J. Lu Intel64]

New failures:

New passes:
FAIL: gcc.dg/vect/vect-nop-move.c execution test
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 14)
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 14)
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 6)
FAIL: gcc.target/i386/pr57756.c  (test for errors, line 6)