Examples with ExprConstant de.neemann.digital.hdl.model2.expression.ExprConstant used on opensource projects

Example 1 with ExprConstant

use of de.neemann.digital.hdl.model2.expression.ExprConstant in project Digital by hneemann.

the class MergeConstants method optimize.

@Override
public void optimize(HDLCircuit circuit) throws HDLException {
    this.circuit = circuit;
    ArrayList<HDLNode> nodes = circuit.getNodes();
    int n1 = 0;
    while (n1 < nodes.size()) {
        final HDLNode node1 = nodes.get(n1);
        ExprConstant con1 = ExprConstant.isConstant(node1);
        if (con1 != null) {
            // CHECKSTYLE.OFF: ModifiedControlVariable
            for (int n2 = n1 + 1; n2 < nodes.size(); n2++) {
                final HDLNode node2 = nodes.get(n2);
                ExprConstant con2 = ExprConstant.isConstant(node2);
                if (con2 != null) {
                    if (con1.isEqualTo(con2)) {
                        merge(node1, node2);
                        nodes.remove(n2);
                        n2--;
                    }
                }
            }
        // CHECKSTYLE.ON: ModifiedControlVariable
        }
        n1++;
    }
}

Example 2 with ExprConstant

use of de.neemann.digital.hdl.model2.expression.ExprConstant in project Digital by hneemann.

the class RemoveConstantSignals method optimize.

@Override
public void optimize(HDLCircuit circuit) {
    Iterator<HDLNet> it = circuit.getNets().iterator();
    while (it.hasNext()) {
        HDLNet net = it.next();
        final ExprConstant constant = net.isConstant();
        if (constant != null && isOnlyUsedInSupportedNodes(net)) {
            circuit.getNodes().remove(net.getOutput().getParent());
            it.remove();
            circuit.replaceNetByExpression(net, new ExprConstant(constant));
        }
    }
}