Regressions on 4.5 at revision 162929 vs revision 162853

[H.J. Lu ia64]

New failures:

New passes:
FAIL: gcc.c-torture/compile/950612-1.c  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o assemble, -O0 -flto
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o assemble, -O0 -fwhopr
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o assemble, -O2 -flto
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o assemble, -O2 -fwhopr
FAIL: gfortran.dg/sms-2.f90  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
WARNING: program timed out.