Regressions on trunk at revision 218090 vs revision 218078

[Alexander V Tikhonov [ia32 Core AVX2]]

New failures:
FAIL: gfortran.dg/power_4.f90   -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (internal compiler error)
FAIL: gfortran.dg/power_4.f90   -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gfortran.dg/power_4.f90   -O3 -fomit-frame-pointer -funroll-loops  (internal compiler error)
FAIL: gfortran.dg/power_4.f90   -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gfortran.dg/power_4.f90   -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: gfortran.dg/power_4.f90   -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gfortran.dg/power_4.f90   -O3 -g  (internal compiler error)
FAIL: gfortran.dg/power_4.f90   -O3 -g  (test for excess errors)

New passes: