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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@213516 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 6 insertions, 7 deletions

diff --git a/gcc/value-prof.c b/gcc/value-prof.c
index 3e51539c72d..ffdee650f7e 100644
--- a/gcc/value-prof.c
+++ b/gcc/value-prof.c
@@ -59,6 +59,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "data-streamer.h"
 #include "builtins.h"
 #include "tree-nested.h"
+#include "hash-set.h"
 
 /* In this file value profile based optimizations are placed.  Currently the
    following optimizations are implemented (for more detailed descriptions
@@ -515,10 +516,10 @@ static bool error_found = false;
 static int
 visit_hist (void **slot, void *data)
 {
-  struct pointer_set_t *visited = (struct pointer_set_t *) data;
+  hash_set<histogram_value> *visited = (hash_set<histogram_value> *) data;
   histogram_value hist = *(histogram_value *) slot;
 
-  if (!pointer_set_contains (visited, hist)
+  if (!visited->contains (hist)
       && hist->type != HIST_TYPE_TIME_PROFILE)
     {
       error ("dead histogram");
@@ -538,10 +539,9 @@ verify_histograms (void)
   basic_block bb;
   gimple_stmt_iterator gsi;
   histogram_value hist;
-  struct pointer_set_t *visited_hists;
 
   error_found = false;
-  visited_hists = pointer_set_create ();
+  hash_set<histogram_value> visited_hists;
   FOR_EACH_BB_FN (bb, cfun)
     for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
       {
@@ -558,12 +558,11 @@ verify_histograms (void)
 		dump_histogram_value (stderr, hist);
 		error_found = true;
 	      }
-            pointer_set_insert (visited_hists, hist);
+            visited_hists.add (hist);
 	  }
       }
   if (VALUE_HISTOGRAMS (cfun))
-    htab_traverse (VALUE_HISTOGRAMS (cfun), visit_hist, visited_hists);
-  pointer_set_destroy (visited_hists);
+    htab_traverse (VALUE_HISTOGRAMS (cfun), visit_hist, &visited_hists);
   if (error_found)
     internal_error ("verify_histograms failed");
 }