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remove iff

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-05-16 18:35:38 -07:00 • committed by Arie Gurfinkel
parent ecf15ab07d
commit ff0f257102
47 changed files with 199 additions and 264 deletions
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8
src/ast/static_features.cpp
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@ -154,8 +154,10 @@ bool static_features::is_diff_atom(expr const * e) const {
bool static_features::is_gate(expr const * e) const {
if (is_basic_expr(e)) {
switch (to_app(e)->get_decl_kind()) {
case OP_ITE: case OP_AND: case OP_OR: case OP_IFF: case OP_XOR: case OP_IMPLIES:
case OP_ITE: case OP_AND: case OP_OR: case OP_XOR: case OP_IMPLIES:
return true;
case OP_EQ:
return m_manager.is_bool(e);
}
}
return false;
@ -207,7 +209,7 @@ void static_features::update_core(expr * e) {
case OP_OR:
m_num_ors++;
break;
case OP_IFF:
case OP_EQ:
m_num_iffs++;
break;
}
@ -418,7 +420,7 @@ void static_features::process(expr * e, bool form_ctx, bool or_and_ctx, bool ite
form_ctx_new = true;
or_and_ctx_new = true;
break;
case OP_IFF:
case OP_EQ:
form_ctx_new = true;
break;
}