Regressions on trunk at revision 208692 vs revision 208680

[H.J. Lu ia32 Core i7]

New failures:

New passes:
FAIL: c-c++-common/torture/complex-sign-mixed-mul.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  execution test
FAIL: c-c++-common/torture/complex-sign-mixed-mul.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)