Regressions on 4.9 (power7) at revision 235031 vs revision 234974 on yavin3.rch.stglabs.ibm.com

[Bill Seurer on yavin3 (POWER7)]

New failures:
FAIL: libgomp.c++/loop-9.C execution test
FAIL: libgomp.fortran/collapse3.f90  -Os  execution test
FAIL: libgomp.fortran/simd3.f90  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: libgomp.fortran/udr15.f90  -O2  execution test
FAIL: runtime

New passes:
FAIL: libgomp.c++/loop-12.C execution test