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Disable obsolete logic constant fixup code.

This commit is contained in:
steve 2005-05-15 04:44:30 +00:00
parent 870395e627
commit fcb02ee9c2
1 changed files with 23 additions and 6 deletions
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29
cprop.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: cprop.cc,v 1.52 2005/04/24 23:44:01 steve Exp $"
#ident "$Id: cprop.cc,v 1.53 2005/05/15 04:44:30 steve Exp $"
#endif
# include "config.h"
@ -218,7 +218,11 @@ void cprop_functor::lpm_logic(Design*des, NetLogic*obj)
NetScope*scope = obj->scope();
switch (obj->type()) {
#if 0
/* XXXX This old code assumed that the individual bit
slices could be replaced with different gates. They
cannot when the device takes atomic vectors, so this
needs to be rewritten. XXXX */
case NetLogic::NAND:
case NetLogic::AND: {
unsigned top = obj->pin_count();
@ -381,7 +385,12 @@ void cprop_functor::lpm_logic(Design*des, NetLogic*obj)
}
break;
}
#endif
#if 0
/* XXXX This old code assumed that the individual bit
slices could be replaced with different gates. They
cannot when the device takes atomic vectors, so this
needs to be rewritten. XXXX */
case NetLogic::NOR:
case NetLogic::OR: {
@ -503,7 +512,7 @@ void cprop_functor::lpm_logic(Design*des, NetLogic*obj)
delete obj;
count += 1;
return;
}
v }
/* Finally, this cleans up the gate by creating a
new [N]OR gate that has the right number of
@ -528,7 +537,12 @@ void cprop_functor::lpm_logic(Design*des, NetLogic*obj)
}
break;
}
#endif
#if 0
/* XXXX This old code assumed that the individual bit
slices could be replaced with different gates. They
cannot when the device takes atomic vectors, so this
needs to be rewritten. XXXX */
case NetLogic::XNOR:
case NetLogic::XOR: {
unsigned top = obj->pin_count();
@ -718,7 +732,7 @@ void cprop_functor::lpm_logic(Design*des, NetLogic*obj)
}
break;
}
#endif
default:
break;
}
@ -941,6 +955,9 @@ void cprop(Design*des)
/*
* $Log: cprop.cc,v $
* Revision 1.53 2005/05/15 04:44:30 steve
* Disable obsolete logic constant fixup code.
*
* Revision 1.52 2005/04/24 23:44:01 steve
* Update DFF support to new data flow.
*