Regressions on trunk at revision 191171 vs revision 191129

[H.J. Lu x32]

New failures:

New passes:
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