re PR c++/71100 (Internal compiler error while calling a pointer to member function that throws)

	PR c++/71100
	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Don't drop
	lhs if it has TREE_ADDRESSABLE type.

	* g++.dg/opt/pr71100.C: New test.

From-SVN: r236430

gcc/ChangeLog

+2016-05-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/71100
+	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Don't drop
+	lhs if it has TREE_ADDRESSABLE type.
+
 2016-05-18  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/71145

gcc/cgraph.c

@@ -1515,7 +1515,8 @@ cgraph_edge::redirect_call_stmt_to_callee (void)
   /* If the call becomes noreturn, remove the LHS if possible.  */
   if (lhs
       && (gimple_call_flags (new_stmt) & ECF_NORETURN)
-      && TREE_CODE (TYPE_SIZE_UNIT (TREE_TYPE (lhs))) == INTEGER_CST)
+      && TREE_CODE (TYPE_SIZE_UNIT (TREE_TYPE (lhs))) == INTEGER_CST
+      && !TREE_ADDRESSABLE (TREE_TYPE (lhs)))
     {
       if (TREE_CODE (lhs) == SSA_NAME)
 	{

gcc/testsuite/ChangeLog

+2016-05-18  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/71100
+	* g++.dg/opt/pr71100.C: New test.
+
 2016-05-18  Martin Jambor  <mjambor@suse.cz>
 
 	PR ipa/69708

gcc/testsuite/g++.dg/opt/pr71100.C

+// PR c++/71100
+// { dg-do compile }
+// { dg-options "-O2" }
+
+struct D { ~D (); };
+struct E { D foo () { throw 1; } };
+
+inline void
+bar (D (E::*f) (), E *o)
+{
+  (o->*f) ();
+}
+
+void
+baz (E *o)
+{
+  bar (&E::foo, o);
+}