Regressions on trunk at revision 227491 vs revision 227484

[H.J. Lu Intel64 LTO/FDO]

New failures:
FAIL: g++.dg/guality/pr55665.C   -O2  line 23 p == 40
FAIL: g++.dg/guality/pr55665.C   -O3 -g  line 23 p == 40
ERROR: can't unset "et_cache(ilp32,value)": no such element in array

New passes:
ERROR: can't unset "et_cache(label_values,value)": no such element in array