IPA modref: fix miscompilation in clone when IPA modref is used

gcc/ChangeLog:

	PR ipa/97292
	PR ipa/97335
	* ipa-modref-tree.h (copy_from): Drop summary in a
	clone.

diff --git a/gcc/ipa-modref-tree.h b/gcc/ipa-modref-tree.h
index b37280d..8d7f286 100644 (file)
--- a/gcc/ipa-modref-tree.h
+++ b/gcc/ipa-modref-tree.h
@@ -496,7 +496,8 @@ struct GTY((user)) modref_tree
   /* Copy OTHER to THIS.  */
   void copy_from (modref_tree <T> *other)
   {
-    merge (other, NULL);
+    auto_vec <modref_parm_map, 32> parm_map;
+    merge (other, &parm_map);
   }
 
   /* Search BASE in tree; return NULL if failed.  */