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Precalculate indices to l-value arrays.

This commit is contained in:
steve 2002-11-21 23:27:51 +00:00
parent 03afbf157b
commit 412518d1ca
1 changed files with 15 additions and 1 deletions
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16
elab_lval.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_lval.cc,v 1.22 2002/11/21 18:15:40 steve Exp $"
#ident "$Id: elab_lval.cc,v 1.23 2002/11/21 23:27:51 steve Exp $"
#endif
# include "config.h"
@ -302,6 +302,17 @@ NetAssign_* PEIdent::elaborate_mem_lval_(Design*des, NetScope*scope,
if (ix == 0)
return 0;
/* Evaluate the memory index expression down as must as
possible. Ideally, we can get it down to a constant. */
if (! dynamic_cast<NetEConst*>(ix)) {
NetExpr*tmp = ix->eval_tree();
if (tmp) {
tmp->set_line(*ix);
delete ix;
ix = tmp;
}
}
NetAssign_*lv = new NetAssign_(mem);
lv->set_bmux(ix);
lv->set_part(0, mem->width());
@ -318,6 +329,9 @@ NetAssign_* PENumber::elaborate_lval(Design*des, NetScope*) const
/*
* $Log: elab_lval.cc,v $
* Revision 1.23 2002/11/21 23:27:51 steve
* Precalculate indices to l-value arrays.
*
* Revision 1.22 2002/11/21 18:15:40 steve
* Fix const test of msb in assignment l-values.
*