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Handle width expansion of shift operators.

This commit is contained in:
steve 2000-06-18 03:29:52 +00:00
parent e52243a82d
commit 4febf5801b
1 changed files with 15 additions and 5 deletions
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20
set_width.cc
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: set_width.cc,v 1.13 2000/05/04 03:37:59 steve Exp $"
#ident "$Id: set_width.cc,v 1.14 2000/06/18 03:29:52 steve Exp $"
#endif
/*
@ -47,8 +47,8 @@ bool NetEBinary::set_width(unsigned w)
case 'l': // left shift (<<)
case 'r': // right shift (>>)
flag = left_->set_width(w);
expr_width(w);
/* these operators are handled in the derived class. */
assert(0);
break;
/* The default rule is that the operands of the binary
@ -163,8 +163,15 @@ bool NetEBMult::set_width(unsigned w)
*/
bool NetEBShift::set_width(unsigned w)
{
bool flag;
flag = left_->set_width(w);
bool flag = true;
left_->set_width(w);
if (left_->expr_width() < w)
left_ = pad_to_width(left_, w);
expr_width(left_->expr_width());
flag = expr_width() == w;
return flag;
}
@ -300,6 +307,9 @@ bool NetEUnary::set_width(unsigned w)
/*
* $Log: set_width.cc,v $
* Revision 1.14 2000/06/18 03:29:52 steve
* Handle width expansion of shift operators.
*
* Revision 1.13 2000/05/04 03:37:59 steve
* Add infrastructure for system functions, move
* $time to that structure and add $random.