tree-ssa-sink.c (nearest_common_dominator_of_uses): Factor out common code.

	* tree-ssa-sink.c (nearest_common_dominator_of_uses): Factor
	out common code.

From-SVN: r99105

gcc/ChangeLog

@@ -5,6 +5,9 @@
 	Use VEC instead of VARRAY.
 	(equiv_free): New.
 
+	* tree-ssa-sink.c (nearest_common_dominator_of_uses): Factor
+	out common code.
+
 2005-05-02  Paolo Bonzini  <bonzini@gnu.org>
 
         * c-common.c (resolve_overloaded_builtin): Forward to target

gcc/tree-ssa-sink.c

@@ -238,22 +238,17 @@ nearest_common_dominator_of_uses (tree stmt)
         {
 	  tree usestmt = USE_STMT (use_p);
 	  basic_block useblock;
+
 	  if (TREE_CODE (usestmt) == PHI_NODE)
 	    {
 	      int idx = PHI_ARG_INDEX_FROM_USE (use_p);
 
 	      useblock = PHI_ARG_EDGE (usestmt, idx)->src;
-	      /* Short circuit. Nothing dominates the entry block.  */
-	      if (useblock == ENTRY_BLOCK_PTR)
-		{
-		  BITMAP_FREE (blocks);
-		  return NULL;
-		}
-	      bitmap_set_bit (blocks, useblock->index);
 	    }
 	  else
 	    {
 	      useblock = bb_for_stmt (usestmt);
+	    }
 
 	  /* Short circuit. Nothing dominates the entry block.  */
 	  if (useblock == ENTRY_BLOCK_PTR)
@@ -264,7 +259,6 @@ nearest_common_dominator_of_uses (tree stmt)
 	  bitmap_set_bit (blocks, useblock->index);
 	}
     }
-    }
   commondom = BASIC_BLOCK (bitmap_first_set_bit (blocks));
   EXECUTE_IF_SET_IN_BITMAP (blocks, 0, j, bi)
     commondom = nearest_common_dominator (CDI_DOMINATORS, commondom,