Regressions on trunk at revision 245990 vs revision 245986

[H.J. Lu x32]

New failures:
FAIL: g++.dg/warn/Wpadded-1.C  -std=gnu++11  (test for warnings, line 6)
FAIL: g++.dg/warn/Wpadded-1.C  -std=gnu++14  (test for warnings, line 6)
FAIL: g++.dg/warn/Wpadded-1.C  -std=gnu++98  (test for warnings, line 6)

New passes: