Regressions on trunk at revision 207528 vs revision 207499

[H.J. Lu Intel64 Core i7]

New failures:

New passes:
FAIL: c-c++-common/cilk-plus/CK/spawner_inline.c  -O1 execution test
FAIL: c-c++-common/cilk-plus/CK/spawner_inline.c  -O1 execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O1 -fcilkplus execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O1 -fcilkplus execution test