re PR ipa/65557 (ICE: SIGSEGV in hash_table<>::find_slot_with_hash() with…

re PR ipa/65557 (ICE: SIGSEGV in hash_table<>::find_slot_with_hash() with -fdevirtualize -fipa-cp -fipa-icf-functions)

Fix PR65557.

	* ipa-icf.c (sem_function::equals_wpa): Check if IPA CP
	has already filled up function summary.
	(sem_item_optimizer::update_hash_by_addr_refs): Likewise.
	* g++.dg/ipa/pr65557.C: New test.

From-SVN: r221796

gcc/ChangeLog

+2015-03-31  Martin Liska  <mliska@suse.cz>
+
+	PR ipa/65557
+	* ipa-icf.c (sem_function::equals_wpa): Check if IPA CP
+	has already filled up function summary.
+	(sem_item_optimizer::update_hash_by_addr_refs): Likewise.
+
 2015-03-31  Richard Biener  <rguenther@suse.de>
 
 	* tree-sra.c (create_access_replacement): Drop under-/over-alignment

gcc/ipa-icf.c

@@ -534,7 +534,7 @@ sem_function::equals_wpa (sem_item *item,
   if (opt_for_fn (decl, flag_devirtualize)
       && (TREE_CODE (TREE_TYPE (decl)) == METHOD_TYPE
           || TREE_CODE (TREE_TYPE (item->decl)) == METHOD_TYPE)
-      && (!flag_ipa_cp
+      && (ipa_node_params_sum == NULL
 	  || ipa_is_param_used (IPA_NODE_REF (dyn_cast <cgraph_node *>(node)),
 				0))
       && compare_polymorphic_p ())
@@ -2505,7 +2505,7 @@ sem_item_optimizer::update_hash_by_addr_refs ()
 	      && contains_polymorphic_type_p
 		   (method_class_type (TREE_TYPE (m_items[i]->decl)))
 	      && (DECL_CXX_CONSTRUCTOR_P (m_items[i]->decl)
-		  || ((!flag_ipa_cp
+		  || ((ipa_node_params_sum == NULL
 		       || ipa_is_param_used (
 			    IPA_NODE_REF
 			      (dyn_cast <cgraph_node *>(m_items[i]->node)), 0))

gcc/testsuite/ChangeLog

+2015-03-31  Martin Liska  <mliska@suse.cz>
+
+	* g++.dg/ipa/pr65557.C: New test.
+
 2015-03-31  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 
 	* gcc.target/s390/hotpatch-25.c: New test.

gcc/testsuite/g++.dg/ipa/pr65557.C

+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-ipa-icf-details"  } */
+
+struct S0
+{
+  S0 ()
+  {
+  }
+};
+
+struct S1
+{
+  S1 ()
+  {
+  }
+};
+
+S0 s0;
+S1 s1;