Regressions on trunk at revision 236919 vs revision 236907

[H.J. Lu ia32 -fpic]

New failures:

New passes:
FAIL: c-c++-common/cilk-plus/CK/spawnee_inline.c  -O3 -flto -g  execution test
FAIL: c-c++-common/cilk-plus/CK/spawnee_inline.c  -O3 -g  execution test
FAIL: c-c++-common/cilk-plus/CK/spawnee_inline.c  -O3 execution test
FAIL: c-c++-common/cilk-plus/CK/spawner_inline.c  -O3 -flto -g  execution test
FAIL: c-c++-common/cilk-plus/CK/spawner_inline.c  -O3 -g  execution test
FAIL: c-c++-common/cilk-plus/CK/spawner_inline.c  -O3 execution test
FAIL: c-c++-common/cilk-plus/CK/varargs_test.c  -O3 -flto -g  execution test
FAIL: c-c++-common/cilk-plus/CK/varargs_test.c  -O3 -g  execution test
FAIL: c-c++-common/cilk-plus/CK/varargs_test.c  -O3 execution test