* ipa-icf.c (sem_variable::equals_wpa): Check FINAL flags.

From-SVN: r221226

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c4496f5..9d2e92b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2015-03-05  Jan Hubicka  <hubicka@ucw.cz>
+
+       * ipa-icf.c (sem_variable::equals_wpa): Check FINAL flags.
+
 2015-03-05  Vladimir Makarov  <vmakarov@redhat.com>
 
        PR target/64342

diff --git a/gcc/ipa-icf.c b/gcc/ipa-icf.c
index a7f19d6..7c4c852 100644 (file)
--- a/gcc/ipa-icf.c
+++ b/gcc/ipa-icf.c
@@ -1480,6 +1480,18 @@ sem_variable::equals_wpa (sem_item *item,
                                      ref->referred, ref2->referred,
                                      ref->address_matters_p ()))
        return false;
+
+      /* DECL_FINAL_P flag on methods referred by virtual tables is used
+        to decide on completeness possible_polymorphic_call_targets lists
+        and therefore it must match.  */
+      if ((DECL_VIRTUAL_P (decl) || DECL_VIRTUAL_P (item->decl))
+         && (DECL_VIRTUAL_P (ref->referred->decl)
+             || DECL_VIRTUAL_P (ref2->referred->decl))
+         && ((DECL_VIRTUAL_P (ref->referred->decl)
+              != DECL_VIRTUAL_P (ref2->referred->decl))
+             || (DECL_FINAL_P (ref->referred->decl)
+                 != DECL_FINAL_P (ref2->referred->decl))))
+        return return_false_with_msg ("virtual or final flag mismatch");
     }
 
   return true;