Regressions on trunk at revision 270894 vs revision 270786

[H.J. Lu (Intel64 AVX)]

New failures:
FAIL: compiler driver --help=params --help=optimizers option(s): "maximum number of" present in output
FAIL: compiler driver --help=params --help=optimizers option(s): "maximum number of" present in output
FAIL: compiler driver --help=params --help=optimizers option(s): "maximum number of" present in output

New passes:
FAIL: gcc.dg/tree-prof/stringop-1.c scan-tree-dump optimized "return 1;"