add a hash_set based on hash_table

This allows us to replace the usage of pointer_set outside of
pointer_map with a nicer interface.

gcc/ada/

	* gcc-interface/trans.c: Use hash_set instead of pointer_set.

gcc/c-family/

	* c-gimplify.c: Use hash_set instead of pointer_set.

gcc/c/

	* c-decl.c: Use hash_set instead of pointer_set.

gcc/cp/

	* class.c, cp-gimplify.c, cp-tree.h, decl.c, decl2.c, error.c,
	method.c, name-lookup.c, pt.c, semantics.c, tree.c: Use hash_set
	instead of pointer_set.

gcc/fortran/

	* openmp.c, trans-decl.c: Use hash_set instead of pointer_set.

gcc/

	* hash-set.h: new File.
	* cfgexpand.c, cfgloop.c, cgraph.c, cgraphbuild.c, cgraphunit.c,
	cprop.c, cse.c, gimple-walk.c, gimple-walk.h, gimplify.c, godump.c,
	ipa-devirt.c, ipa-pure-const.c, ipa-visibility.c, ipa.c, lto-cgraph.c,
	lto-streamer-out.c, stmt.c, tree-cfg.c, tree-core.h, tree-eh.c,
	tree-inline.c, tree-inline.h, tree-nested.c, tree-pretty-print.c,
	tree-ssa-loop-niter.c, tree-ssa-phiopt.c, tree-ssa-threadedge.c,
	tree-ssa-uninit.c, tree.c, tree.h, value-prof.c, varasm.c,
	varpool.c: Use hash_set instead of pointer_set.

gcc/lto/

	* lto-partition.c, lto-partition.h: Use hash_set instead of
	pointer_set.

From-SVN: r213516

3 files changed, 11 insertions, 5 deletions

diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index fbb9d6b..2d0018ff 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,8 @@
+2014-08-02  Trevor Saunders  <tsaunders@mozilla.com>
+
+	* lto-partition.c, lto-partition.h: Use hash_set instead of
+	pointer_set.
+
 2014-07-31  Andi Kleen  <ak@linux.intel.com>
 
 	* lto.c (hash_canonical_type): Use inchash::hash
diff --git a/gcc/lto/lto-partition.c b/gcc/lto/lto-partition.c
index cb08a88..a5bcf92 100644
--- a/gcc/lto/lto-partition.c
+++ b/gcc/lto/lto-partition.c
@@ -66,7 +66,7 @@ free_ltrans_partitions (void)
   for (idx = 0; ltrans_partitions.iterate (idx, &part); idx++)
     {
       if (part->initializers_visited)
-	pointer_set_destroy (part->initializers_visited);
+	delete part->initializers_visited;
       /* Symtab encoder is freed after streaming.  */
       free (part);
     }
@@ -101,8 +101,8 @@ add_references_to_partition (ltrans_partition part, symtab_node *node)
 	     && !lto_symtab_encoder_in_partition_p (part->encoder, ref->referred))
       {
 	if (!part->initializers_visited)
-	  part->initializers_visited = pointer_set_create ();
-	if (!pointer_set_insert (part->initializers_visited, ref->referred))
+	  part->initializers_visited = new hash_set<symtab_node *>;
+	if (!part->initializers_visited->add (ref->referred))
 	  add_references_to_partition (part, ref->referred);
       }
 }
@@ -250,7 +250,7 @@ undo_partition (ltrans_partition partition, unsigned int n_nodes)
 
       /* After UNDO we no longer know what was visited.  */
       if (partition->initializers_visited)
-	pointer_set_destroy (partition->initializers_visited);
+	delete partition->initializers_visited;
       partition->initializers_visited = NULL;
 
       if (!node->alias && (cnode = dyn_cast <cgraph_node *> (node)))
diff --git a/gcc/lto/lto-partition.h b/gcc/lto/lto-partition.h
index 8db61b3..50ec2fa 100644
--- a/gcc/lto/lto-partition.h
+++ b/gcc/lto/lto-partition.h
@@ -17,6 +17,7 @@ You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
 
+#include "hash-set.h"
 
 /* Structure describing ltrans partitions.  */
 
@@ -25,7 +26,7 @@ struct ltrans_partition_def
   lto_symtab_encoder_t encoder;
   const char * name;
   int insns;
-  pointer_set_t *initializers_visited;
+  hash_set<symtab_node *> *initializers_visited;
 };
 
 typedef struct ltrans_partition_def *ltrans_partition;