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

1 files changed, 6 insertions, 6 deletions

diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 2f0ae71..b20be10 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -35,6 +35,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "expr.h"
 #include "langhooks.h"
 #include "bitmap.h"
+#include "hash-set.h"
 #include "pointer-set.h"
 #include "tree-ssa-alias.h"
 #include "internal-fn.h"
@@ -594,7 +595,7 @@ stack_var_cmp (const void *a, const void *b)
 static void
 add_partitioned_vars_to_ptset (struct pt_solution *pt,
 			       struct pointer_map_t *decls_to_partitions,
-			       struct pointer_set_t *visited, bitmap temp)
+			       hash_set<bitmap> *visited, bitmap temp)
 {
   bitmap_iterator bi;
   unsigned i;
@@ -604,7 +605,7 @@ add_partitioned_vars_to_ptset (struct pt_solution *pt,
       || pt->vars == NULL
       /* The pointed-to vars bitmap is shared, it is enough to
 	 visit it once.  */
-      || pointer_set_insert (visited, pt->vars))
+      || visited->add (pt->vars))
     return;
 
   bitmap_clear (temp);
@@ -684,7 +685,7 @@ update_alias_info_with_stack_vars (void)
   if (decls_to_partitions)
     {
       unsigned i;
-      struct pointer_set_t *visited = pointer_set_create ();
+      hash_set<bitmap> visited;
       bitmap temp = BITMAP_ALLOC (&stack_var_bitmap_obstack);
 
       for (i = 1; i < num_ssa_names; i++)
@@ -696,13 +697,12 @@ update_alias_info_with_stack_vars (void)
 	      && POINTER_TYPE_P (TREE_TYPE (name))
 	      && ((pi = SSA_NAME_PTR_INFO (name)) != NULL))
 	    add_partitioned_vars_to_ptset (&pi->pt, decls_to_partitions,
-					   visited, temp);
+					   &visited, temp);
 	}
 
       add_partitioned_vars_to_ptset (&cfun->gimple_df->escaped,
-				     decls_to_partitions, visited, temp);
+				     decls_to_partitions, &visited, temp);
 
-      pointer_set_destroy (visited);
       pointer_map_destroy (decls_to_partitions);
       BITMAP_FREE (temp);
     }