Regressions on trunk at revision 194655 vs revision 194628

[Kirill Yukhin [ia32 Core i7 AVX]]

New failures:

New passes:
FAIL: gfortran.dg/same_type_as_1.f03  -O   (test for errors, line 21)
FAIL: gfortran.dg/same_type_as_1.f03  -O   (test for errors, line 24)
FAIL: gfortran.dg/same_type_as_1.f03  -O  (test for excess errors)