@c "attrib/bool-iscomb.texi"
@c extracted from "../../src/Object/unroll/bool_instance_attribute.cc"
@c by "$(top_srcdir)/scripts/extract_texinfo.awk".

@defmac iscomb b
Nodes are initially @t{iscomb=false}.
If @var{b} is true, node is marked as being driven combinationally, 
@emph{regardless} of the actual fanin rule of the node.  
This can be used to tell other tools to not expect a staticizer on this node.
If attribute value is unspecified, default value is true.
@end defmac

