1 files changed, 0 insertions, 95 deletions
diff --git a/llvm/support/tools/Burg/closure.c b/llvm/support/tools/Burg/closure.c
deleted file mode 100644
index 70e16264ebb..00000000000
--- a/llvm/support/tools/Burg/closure.c
+++ /dev/null
@@ -1,95 +0,0 @@
-char rcsid_closure[] = "$Id$";
-
-#include <stdio.h>
-#include "b.h"
-
-int prevent_divergence = 0;
-
-List chainrules;
-
-void
-findChainRules()
-{
-	List pl;
-
-	assert(!chainrules);
-
-	for (pl = rules; pl; pl = pl->next) {
-		Rule p = (Rule) pl->x;
-		if (!p->pat->op) {
-			chainrules = newList(p, chainrules);
-		} else {
-			p->pat->op->table->rules = newList(p, p->pat->op->table->rules);
-			addRelevant(p->pat->op->table->relevant, p->lhs->num);
-		}
-	}
-}
-
-void
-zero(t) Item_Set t;
-{
-	int i;
-	DeltaCost base;
-	int exists;
-	int base_nt;
-
-	assert(!t->closed);
-
-	ZEROCOST(base);
-	exists = 0;
-	for (i = 0; i < max_nonterminal; i++) {
-		if (t->virgin[i].rule) {
-			if (exists) {
-				if (LESSCOST(t->virgin[i].delta, base)) {
-					ASSIGNCOST(base, t->virgin[i].delta);
-					base_nt = i;
-				}
-			} else {
-				ASSIGNCOST(base, t->virgin[i].delta);
-				exists = 1;
-				base_nt = i;
-			}
-		}
-	}
-	if (!exists) {
-		return;
-	}
-	for (i = 0; i < max_nonterminal; i++) {
-		if (t->virgin[i].rule) {
-			MINUSCOST(t->virgin[i].delta, base);
-		}
-		NODIVERGE(t->virgin[i].delta, t, i, base_nt);
-	}
-}
-
-void
-closure(t) Item_Set t;
-{
-	int changes;
-	List pl;
-
-	assert(!t->closed);
-	t->closed = itemArrayCopy(t->virgin);
-
-	changes = 1;
-	while (changes) {
-		changes = 0;
-		for (pl = chainrules; pl; pl = pl->next) {
-			Rule p = (Rule) pl->x;
-			register Item *rhs_item = &t->closed[p->pat->children[0]->num];
-
-			if (rhs_item->rule) {	/* rhs is active */
-				DeltaCost dc;
-				register Item *lhs_item = &t->closed[p->lhs->num];
-
-				ASSIGNCOST(dc, rhs_item->delta);
-				ADDCOST(dc, p->delta);
-				if (LESSCOST(dc, lhs_item->delta) || !lhs_item->rule) {
-					ASSIGNCOST(lhs_item->delta, dc);
-					lhs_item->rule = p;
-					changes = 1;
-				}
-			}
-		}
-	}
-}