public void visitIfCmpStmt(final IfCmpStmt stmt) {
		if (stmt.left == from) {
			stmt.left = (Expr) to;
			((Expr) to).setParent(stmt);
		} else if (stmt.right == from) {
			stmt.right = (Expr) to;
			((Expr) to).setParent(stmt);
		} else {
			stmt.visitChildren(this);
		}
	}