Regressions on trunk at revision 190067 vs revision 190063

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/pr52558-1.c scan-tree-dump-times lim1 "MEM count_lsm.. count_lsm_flag" 1
FAIL: gcc.dg/pr52558-2.c scan-tree-dump-times lim1 "MEM.*g_2_lsm_flag" 1
FAIL: gcc.dg/tm/reg-promotion.c scan-tree-dump-times lim1 "MEM count_lsm.. count_lsm_flag" 1
FAIL: gfortran.dg/internal_readwrite_1.f90  -Os  (test for excess errors)
FAIL: gfortran.dg/list_read_6.f90  -O0  (test for excess errors)

New passes: