re PR c++/58201 (Undefined reference to `B::B(void const**)')

	PR middle-end/58201
	* cgraphunit.c (analyze_functions): Clear AUX fields
	after processing; initialize assembler name has.

	* g++.dg/torture/pr58201_0.C: New testcase.
	* g++.dg/torture/pr58201_1.C: New testcase.
	* g++.dg/torture/pr58201.h: New testcase.

From-SVN: r202298

gcc/ChangeLog

+2013-09-04  Jan Hubicka  <jh@suse.cz>
+
+	PR middle-end/58201
+	* cgraphunit.c (analyze_functions): Clear AUX fields
+	after processing; initialize assembler name has.
+
 2013-09-05  Jeff Law  <law@redhat.com>
 
 	* tree-ssa-threadedge.c (thread_around_empty_blocks): Renamed

gcc/cgraphunit.c

@@ -1064,6 +1064,8 @@ analyze_functions (void)
 	}
       node->symbol.aux = NULL;
     }
+  for (;node; node = node->symbol.next)
+    node->symbol.aux = NULL;
   first_analyzed = cgraph_first_function ();
   first_analyzed_var = varpool_first_variable ();
   if (cgraph_dump_file)
@@ -1074,6 +1076,11 @@ analyze_functions (void)
   bitmap_obstack_release (NULL);
   pointer_set_destroy (reachable_call_targets);
   ggc_collect ();
+  /* Initialize assembler name hash, in particular we want to trigger C++
+     mangling and same body alias creation before we free DECL_ARGUMENTS
+     used by it.  */
+  if (!seen_error ())
+  symtab_initialize_asm_name_hash ();
 }
 
 /* Translate the ugly representation of aliases as alias pairs into nice

gcc/testsuite/ChangeLog

+2013-09-04  Jan Hubicka  <jh@suse.cz>
+
+	PR middle-end/58201
+	* g++.dg/torture/pr58201_0.C: New testcase.
+	* g++.dg/torture/pr58201_1.C: New testcase.
+	* g++.dg/torture/pr58201.h: New testcase.
+
 2013-09-05  Jan Hubicka  <jh@suse.cz>
 
 	* gcc.dg/autopar/pr49960.c: Disable partial inlining

gcc/testsuite/g++.dg/torture/pr58201.h

+class A
+{
+ protected:
+  A();
+  virtual ~A();
+};
+
+class B : virtual public A
+{
+ public:
+  B();
+  virtual ~B();
+};
+
+class C
+{
+ private:
+  class C2 : public B
+   {
+   public:
+     C2();
+     virtual ~C2();
+   };
+};

gcc/testsuite/g++.dg/torture/pr58201_0.C

+#include "pr58201.h"    
+                    
+C::C2::C2(){ }      
+C::C2::~C2() { }    
+                    
+int main ()         
+{                   
+    return 0;       
+}  

gcc/testsuite/g++.dg/torture/pr58201_1.C

+/* { dg-do link } */
+/* { dg-options "-O2" } */
+/* { dg-additional-sources "pr58201_0.C" } */
+#include "pr58201.h"
+
+A::A() { }
+A::~A() { }
+B::B() { }
+B::~B() { }
+