Regressions on trunk at revision 247459 vs revision 247429

[H.J. Lu x32]

New failures:

New passes:
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-18.c (test for excess errors)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-18.c  (test for warnings, line 123)
FAIL: gcc.dg/tree-ssa/builtin-sprintf-warn-18.c  (test for warnings, line 125)