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Make sure comparison widths match.

This commit is contained in:
steve 2005-05-19 03:51:38 +00:00
parent 28168e0f57
commit 06e08dbdf0
1 changed files with 16 additions and 12 deletions
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28
elab_net.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: elab_net.cc,v 1.163 2005/05/10 05:10:40 steve Exp $"
#ident "$Id: elab_net.cc,v 1.164 2005/05/19 03:51:38 steve Exp $"
#endif
# include "config.h"
@ -451,7 +451,7 @@ NetNet* PEBinary::elaborate_net_cmp_(Design*des, NetScope*scope,
(so that the eval_tree method can reduce constant
expressions, including parameters) then turn those results
into synthesized nets. */
NetExpr*lexp = left_->elaborate_expr(des, scope);
NetExpr*lexp = elab_and_eval(des, scope, left_);
if (lexp == 0) {
cerr << get_line() << ": error: Cannot elaborate ";
left_->dump(cerr);
@ -459,12 +459,7 @@ NetNet* PEBinary::elaborate_net_cmp_(Design*des, NetScope*scope,
return 0;
}
if (NetExpr*tmp = lexp->eval_tree()) {
delete lexp;
lexp = tmp;
}
NetExpr*rexp = right_->elaborate_expr(des, scope);
NetExpr*rexp = elab_and_eval(des, scope, right_);
if (rexp == 0) {
cerr << get_line() << ": error: Cannot elaborate ";
right_->dump(cerr);
@ -472,10 +467,16 @@ NetNet* PEBinary::elaborate_net_cmp_(Design*des, NetScope*scope,
return 0;
}
if (NetExpr*tmp = rexp->eval_tree()) {
delete rexp;
rexp = tmp;
}
/* Choose the operand width to be the width of the widest
self-determined operand. */
unsigned operand_width = lexp->expr_width();
if (rexp->expr_width() > operand_width)
operand_width = rexp->expr_width();
lexp->set_width(operand_width);
lexp = pad_to_width(lexp, operand_width);
rexp->set_width(operand_width);
rexp = pad_to_width(rexp, operand_width);
NetNet*lsig = 0;
NetNet*rsig = 0;
@ -2460,6 +2461,9 @@ NetNet* PEUnary::elaborate_net(Design*des, NetScope*scope,
/*
* $Log: elab_net.cc,v $
* Revision 1.164 2005/05/19 03:51:38 steve
* Make sure comparison widths match.
*
* Revision 1.163 2005/05/10 05:10:40 steve
* Make sig-eq-constant optimization more effective.
*