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shift expressions can have definite widths.

This commit is contained in:
steve 2001-11-06 04:32:37 +00:00
parent bf9a8f5021
commit 1ff36dc892
2 changed files with 18 additions and 2 deletions
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10
netlist.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: netlist.cc,v 1.174 2001/10/28 01:14:53 steve Exp $"
#ident "$Id: netlist.cc,v 1.175 2001/11/06 04:32:37 steve Exp $"
#endif
# include "config.h"
@ -1996,6 +1996,11 @@ NetEBShift::~NetEBShift()
{
}
bool NetEBShift::has_width() const
{
return left_->has_width();
}
NetEBShift* NetEBShift::dup_expr() const
{
NetEBShift*result = new NetEBShift(op_, left_->dup_expr(),
@ -2411,6 +2416,9 @@ const NetProc*NetTaskDef::proc() const
/*
* $Log: netlist.cc,v $
* Revision 1.175 2001/11/06 04:32:37 steve
* shift expressions can have definite widths.
*
* Revision 1.174 2001/10/28 01:14:53 steve
* NetObj constructor finally requires a scope.
*

10
netlist.h
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: netlist.h,v 1.220 2001/10/31 05:24:52 steve Exp $"
#ident "$Id: netlist.h,v 1.221 2001/11/06 04:32:37 steve Exp $"
#endif
/*
@ -2225,6 +2225,11 @@ class NetEBShift : public NetEBinary {
~NetEBShift();
virtual bool set_width(unsigned w);
// A shift expression only needs the left expression to have a
// definite with to give the expression a definite width.
virtual bool has_width() const;
virtual NetEBShift* dup_expr() const;
virtual NetEConst* eval_tree();
@ -2851,6 +2856,9 @@ extern ostream& operator << (ostream&, NetNet::Type);
/*
* $Log: netlist.h,v $
* Revision 1.221 2001/11/06 04:32:37 steve
* shift expressions can have definite widths.
*
* Revision 1.220 2001/10/31 05:24:52 steve
* ivl_target support for assign/deassign.
*