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Be more stubborn about widths.

This commit is contained in:
steve 2006-05-02 04:29:42 +00:00
parent a8b86ea3bb
commit 044da54b41
1 changed files with 17 additions and 4 deletions
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21
set_width.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/ */
#ifdef HAVE_CVS_IDENT #ifdef HAVE_CVS_IDENT
#ident "$Id: set_width.cc,v 1.37 2005/11/26 00:35:44 steve Exp $" #ident "$Id: set_width.cc,v 1.38 2006/05/02 04:29:42 steve Exp $"
#endif #endif
# include "config.h" # include "config.h"
@ -373,11 +373,21 @@ bool NetESignal::set_width(unsigned w, bool)
return true; return true;
} }
bool NetETernary::set_width(unsigned w, bool) bool NetETernary::set_width(unsigned w, bool last_chance)
{ {
bool flag = true; bool flag = true;
flag = flag && true_val_->set_width(w); flag = flag && true_val_->set_width(w, last_chance);
flag = flag && false_val_->set_width(w); flag = flag && false_val_->set_width(w, last_chance);
/* The ternary really insists that the true and false clauses
have the same width. Even if we fail to make the width that
the user requests, at least pad the smaller width to suit
the larger. */
if (true_val_->expr_width() < false_val_->expr_width())
true_val_ = pad_to_width(true_val_, false_val_->expr_width());
if (false_val_->expr_width() < true_val_->expr_width())
false_val_ = pad_to_width(false_val_, true_val_->expr_width());
expr_width(true_val_->expr_width()); expr_width(true_val_->expr_width());
return flag; return flag;
} }
@ -424,6 +434,9 @@ bool NetEUReduce::set_width(unsigned w, bool)
/* /*
* $Log: set_width.cc,v $ * $Log: set_width.cc,v $
* Revision 1.38 2006/05/02 04:29:42 steve
* Be more stubborn about widths.
*
* Revision 1.37 2005/11/26 00:35:44 steve * Revision 1.37 2005/11/26 00:35:44 steve
* More precise about r-value width of constants. * More precise about r-value width of constants.
* *