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, 2 insertions, 5 deletions

diff --git a/gcc/cgraphbuild.c b/gcc/cgraphbuild.c
index 91811d7c2fb..a04958f4d8c 100644
--- a/gcc/cgraphbuild.c
+++ b/gcc/cgraphbuild.c
@@ -322,7 +322,6 @@ pass_build_cgraph_edges::execute (function *fun)
 {
   basic_block bb;
   struct cgraph_node *node = cgraph_node::get (current_function_decl);
-  struct pointer_set_t *visited_nodes = pointer_set_create ();
   gimple_stmt_iterator gsi;
   tree decl;
   unsigned ix;
@@ -386,7 +385,6 @@ pass_build_cgraph_edges::execute (function *fun)
       varpool_node::finalize_decl (decl);
   record_eh_tables (node, fun);
 
-  pointer_set_destroy (visited_nodes);
   return 0;
 }
 
@@ -405,15 +403,14 @@ make_pass_build_cgraph_edges (gcc::context *ctxt)
 void
 record_references_in_initializer (tree decl, bool only_vars)
 {
-  struct pointer_set_t *visited_nodes = pointer_set_create ();
   varpool_node *node = varpool_node::get_create (decl);
+  hash_set<tree> visited_nodes;
   struct record_reference_ctx ctx = {false, NULL};
 
   ctx.varpool_node = node;
   ctx.only_vars = only_vars;
   walk_tree (&DECL_INITIAL (decl), record_reference,
-             &ctx, visited_nodes);
-  pointer_set_destroy (visited_nodes);
+             &ctx, &visited_nodes);
 }
 
 /* Rebuild cgraph edges for current function node.  This needs to be run after