Regressions on trunk at revision 171381 vs revision 171379

[H.J. Lu ia32 Core 2/i7]

New failures:
FAIL: gcc.c-torture/execute/builtins/strlen-2.c compilation,  -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: gcc.c-torture/execute/builtins/strlen-2.c compilation,  -O3 -g  (internal compiler error)
FAIL: gcc.c-torture/execute/cbrt.c compilation,  -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: gcc.c-torture/execute/cbrt.c compilation,  -O3 -g  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870-1.c compilation,  -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870-1.c compilation,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870-1.c compilation,  -O3 -fomit-frame-pointer -funroll-loops  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870-1.c compilation,  -O3 -g  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870.c compilation,  -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870.c compilation,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870.c compilation,  -O3 -fomit-frame-pointer -funroll-loops  (internal compiler error)
FAIL: gcc.c-torture/execute/pr33870.c compilation,  -O3 -g  (internal compiler error)
FAIL: gcc.c-torture/unsorted/bad.c,  -O3 -fomit-frame-pointer   (internal compiler error)
FAIL: gcc.c-torture/unsorted/bad.c,  -O3 -g   (internal compiler error)
FAIL: gcc.dg/vect/pr43842.c (internal compiler error)
FAIL: gcc.dg/vect/pr43842.c (test for excess errors)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (internal compiler error)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -fomit-frame-pointer -funroll-loops  (internal compiler error)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -g  (internal compiler error)
FAIL: gfortran.dg/bounds_check_9.f90  -O3 -g  (test for excess errors)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -fomit-frame-pointer  (internal compiler error)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (internal compiler error)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -fomit-frame-pointer -funroll-loops  (internal compiler error)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -g  (internal compiler error)
FAIL: gfortran.dg/bounds_check_fail_2.f90  -O3 -g  (test for excess errors)

New passes: