HIST_FIELD_FL_EXPR
else if (field->flags & HIST_FIELD_FL_EXPR ||
if (flags & HIST_FIELD_FL_EXPR || flags & HIST_FIELD_FL_ALIAS)
flags |= HIST_FIELD_FL_EXPR;
flags |= combine_consts ? HIST_FIELD_FL_CONST : HIST_FIELD_FL_EXPR;
if (flags & HIST_FIELD_FL_VAR || flags & HIST_FIELD_FL_EXPR)
!(hist_field->flags & HIST_FIELD_FL_EXPR) &&