re PR c++/71446 (Incorrect overload resolution when using designated initializers)

	PR c++/71446
	* call.c (filed_in_pset): Change pset from hash_set<tree> * to
	hash_set<tree, true> &, adjust uses accordingly.
	(build_aggr_conv): Change pset from hash_set<tree> *
	to hash_set<tree, true>.  Replace goto fail; with return NULL;,
	adjust pset uses.

From-SVN: r269861

gcc/cp/ChangeLog

 2019-03-21  Jakub Jelinek  <jakub@redhat.com>
 
+	PR c++/71446
+	* call.c (filed_in_pset): Change pset from hash_set<tree> * to
+	hash_set<tree, true> &, adjust uses accordingly.
+	(build_aggr_conv): Change pset from hash_set<tree> *
+	to hash_set<tree, true>.  Replace goto fail; with return NULL;,
+	adjust pset uses.
+
 	PR c++/89767
 	* parser.c (cp_parser_lambda_introducer): Add ids and first_capture_id
 	variables, check for duplicates in this function.

gcc/cp/call.c

@@ -907,9 +907,9 @@ can_convert_array (tree atype, tree ctor, int flags, tsubst_flags_t complain)
    is in PSET.  */
 
 static bool
-field_in_pset (hash_set<tree> *pset, tree field)
+field_in_pset (hash_set<tree, true> &pset, tree field)
 {
-  if (pset->contains (field))
+  if (pset.contains (field))
     return true;
   if (ANON_AGGR_TYPE_P (TREE_TYPE (field)))
     for (field = TYPE_FIELDS (TREE_TYPE (field));
@@ -934,7 +934,7 @@ build_aggr_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
   conversion *c;
   tree field = next_initializable_field (TYPE_FIELDS (type));
   tree empty_ctor = NULL_TREE;
-  hash_set<tree> *pset = NULL;
+  hash_set<tree, true> pset;
 
   /* We already called reshape_init in implicit_conversion.  */
 
@@ -964,7 +964,7 @@ build_aggr_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
 				      complain);
 
 	      if (!ok)
-		goto fail;
+		return NULL;
 	      /* For unions, there should be just one initializer.  */
 	      if (TREE_CODE (type) == UNION_TYPE)
 		{
@@ -972,12 +972,10 @@ build_aggr_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
 		  i = 1;
 		  break;
 		}
-	      if (pset == NULL)
-		pset = new hash_set<tree>;
-	      pset->add (idx);
+	      pset.add (idx);
 	    }
 	  else
-	    goto fail;
+	    return NULL;
 	}
     }
 
@@ -987,7 +985,7 @@ build_aggr_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
       tree val;
       bool ok;
 
-      if (pset && field_in_pset (pset, field))
+      if (pset.elements () && field_in_pset (pset, field))
 	continue;
       if (i < CONSTRUCTOR_NELTS (ctor))
 	{
@@ -998,7 +996,7 @@ build_aggr_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
 	val = get_nsdmi (field, /*ctor*/false, complain);
       else if (TYPE_REF_P (ftype))
 	/* Value-initialization of reference is ill-formed.  */
-	goto fail;
+	return NULL;
       else
 	{
 	  if (empty_ctor == NULL_TREE)
@@ -1014,22 +1012,15 @@ build_aggr_conv (tree type, tree ctor, int flags, tsubst_flags_t complain)
 			      complain);
 
       if (!ok)
-	goto fail;
+	return NULL;
 
       if (TREE_CODE (type) == UNION_TYPE)
 	break;
     }
 
   if (i < CONSTRUCTOR_NELTS (ctor))
-    {
-    fail:
-      if (pset)
-	delete pset;
-      return NULL;
-    }
+    return NULL;
 
-  if (pset)
-    delete pset;
   c = alloc_conversion (ck_aggr);
   c->type = type;
   c->rank = cr_exact;