re PR c++/9373 (ICE with -fstrict-aliasing in set_mem_alias_set, at emit-rtl.c:1932)

	PR c++/9373
	* g++.dg/opt/ptrmem2.C: New test.

	PR c++/9373
	* cp-lang.c (cxx_get_alias_set): Use alias set zero for
	pointers to member functions.

From-SVN: r64070

gcc/cp/ChangeLog

 2003-03-09  Mark Mitchell  <mark@codesourcery.com>
 
+	PR c++/9373
+	* cp-lang.c (cxx_get_alias_set): Use alias set zero for
+	pointers to member functions.
+
 	PR c++/8534
 	* decl.c (build_ptrmemfunc_type): Do not allow default arugments
 	in pointer-to-member-function types.

gcc/cp/cp-lang.c

@@ -262,8 +262,14 @@ ok_to_generate_alias_set_for_type (tree t)
 static HOST_WIDE_INT
 cxx_get_alias_set (tree t)
 {
-  /* It's not yet safe to use alias sets for classes in C++.  */
-  if (!ok_to_generate_alias_set_for_type(t))
+  
+  if (/* It's not yet safe to use alias sets for some classes in C++.  */
+      !ok_to_generate_alias_set_for_type (t)
+      /* Nor is it safe to use alias sets for pointers-to-member
+	 functions, due to the fact that there may be more than one
+	 RECORD_TYPE type corresponding to the same pointer-to-member
+	 type.  */
+      || TYPE_PTRMEMFUNC_P (t))
     return 0;
 
   return c_common_get_alias_set (t);

gcc/testsuite/ChangeLog

 2003-03-09  Mark Mitchell  <mark@codesourcery.com>
 
+	PR c++/9373
+	* g++.dg/opt/ptrmem2.C: New test.
+
 	PR c++/8534
 	* g++.dg/opt/ptrmem1.C: New test.
 

gcc/testsuite/g++.dg/opt/ptrmem2.C

+typedef unsigned int Mword;
+struct Thread
+{
+  Mword sys_ipc_log();
+  void hook_ipc_vector();
+  unsigned (Thread::*syscall_table)();
+};
+
+void Thread::hook_ipc_vector()
+{
+  syscall_table = &Thread::sys_ipc_log;
+}