Regressions on trunk at revision 172321 vs revision 172316

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto -flto-partition=none  line 17 sizeof (a) == 6

New passes:
FAIL: c-c++-common/torture/complex-sign-mul-minus-one.c  -Os  (internal compiler error)
FAIL: c-c++-common/torture/complex-sign-mul-minus-one.c  -Os  (internal compiler error)
FAIL: c-c++-common/torture/complex-sign-mul-minus-one.c  -Os  (test for excess errors)
FAIL: c-c++-common/torture/complex-sign-mul-minus-one.c  -Os  (test for excess errors)
FAIL: c-c++-common/torture/complex-sign-mul-one.c  -Os  (internal compiler error)
FAIL: c-c++-common/torture/complex-sign-mul-one.c  -Os  (internal compiler error)
FAIL: c-c++-common/torture/complex-sign-mul-one.c  -Os  (test for excess errors)
FAIL: c-c++-common/torture/complex-sign-mul-one.c  -Os  (test for excess errors)
FAIL: gcc.c-torture/compile/20031208-1.c  -Os  (internal compiler error)
FAIL: gcc.c-torture/compile/20031208-1.c  -Os  (test for excess errors)
FAIL: gcc.c-torture/compile/20080628-1.c  -Os  (internal compiler error)
FAIL: gcc.c-torture/compile/20080628-1.c  -Os  (test for excess errors)
FAIL: gcc.c-torture/execute/20020413-1.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/20080502-1.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/960513-1.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/ieee/fp-cmp-8l.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/ieee/inf-2.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/ieee/inf-3.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/pr44942.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/stdarg-1.c compilation,  -Os  (internal compiler error)
FAIL: gcc.c-torture/execute/stdarg-2.c compilation,  -Os  (internal compiler error)
FAIL: gcc.dg/pr19402-2.c (internal compiler error)
FAIL: gcc.dg/pr19402-2.c (test for excess errors)
FAIL: gcc.dg/pr43305.c (internal compiler error)
FAIL: gcc.dg/pr43305.c (test for excess errors)
FAIL: gcc.dg/torture/builtin-convert-4.c  -Os  (internal compiler error)
FAIL: gcc.dg/torture/builtin-convert-4.c  -Os  (test for excess errors)
FAIL: gcc.dg/torture/builtin-math-2.c  -Os  (internal compiler error)
FAIL: gcc.dg/torture/builtin-math-2.c  -Os  (test for excess errors)
FAIL: gfortran.dg/c_kind_params.f90  -Os  (internal compiler error)
FAIL: gfortran.dg/c_kind_params.f90  -Os  (test for excess errors)
FAIL: gfortran.dg/default_format_2.f90  -Os  (internal compiler error)
FAIL: gfortran.dg/default_format_2.f90  -Os  (test for excess errors)
FAIL: gfortran.dg/default_format_denormal_2.f90  -Os  (internal compiler error)
FAIL: gfortran.dg/default_format_denormal_2.f90  -Os  (test for excess errors)
FAIL: gfortran.dg/large_real_kind_2.F90  -Os  (internal compiler error)
FAIL: gfortran.dg/large_real_kind_2.F90  -Os  (test for excess errors)
FAIL: libffi.call/float2.c -Os (test for excess errors)
FAIL: libgomp.c++/ctor-5.C  -Os  (internal compiler error)
FAIL: libgomp.c++/ctor-5.C  -Os  (test for excess errors)
FAIL: libgomp.fortran/allocatable2.f90  -Os  (internal compiler error)
FAIL: libgomp.fortran/allocatable2.f90  -Os  (test for excess errors)
FAIL: libgomp.fortran/appendix-a/a.22.7.f90  -Os  (internal compiler error)
FAIL: libgomp.fortran/appendix-a/a.22.7.f90  -Os  (test for excess errors)
FAIL: libgomp.fortran/threadprivate2.f90  -Os  (internal compiler error)
FAIL: libgomp.fortran/threadprivate2.f90  -Os  (test for excess errors)
FAIL: libgomp.fortran/threadprivate3.f90  -Os  (internal compiler error)
FAIL: libgomp.fortran/threadprivate3.f90  -Os  (test for excess errors)