From 6931b3b79d8fac15931a16d09150543af2a832d3 Mon Sep 17 00:00:00 2001
From: Richard Biener <rguenther@suse.de>
Date: Thu, 17 Mar 2016 13:43:01 +0000
Subject: [PATCH] re PR debug/70271 (internal compiler error: in
 dwarf2out_finish, at dwarf2out.c:27346)

2016-03-17  Richard Biener  <rguenther@suse.de>

	PR debug/70271
	* dwarf2out.c (dwarf2out_early_finish): Process deferred_asm_name
	last.

	* g++.dg/debug/pr70271.C: New testcase.

From-SVN: r234289
---
 gcc/ChangeLog                        |  6 +++++
 gcc/dwarf2out.c                      | 16 ++++++-------
 gcc/testsuite/ChangeLog              |  5 ++++
 gcc/testsuite/g++.dg/debug/pr70271.C | 36 ++++++++++++++++++++++++++++
 4 files changed, 54 insertions(+), 9 deletions(-)
 create mode 100644 gcc/testsuite/g++.dg/debug/pr70271.C

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3edfba0b110..a573275d97a 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-03-17  Richard Biener  <rguenther@suse.de>
+
+	PR debug/70271
+	* dwarf2out.c (dwarf2out_early_finish): Process deferred_asm_name
+	last.
+
 2016-03-17  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/70245
diff --git a/gcc/dwarf2out.c b/gcc/dwarf2out.c
index 61bf267d6ec..0bbff87a95e 100644
--- a/gcc/dwarf2out.c
+++ b/gcc/dwarf2out.c
@@ -27686,10 +27686,15 @@ dwarf2out_finish (const char *filename)
 static void
 dwarf2out_early_finish (void)
 {
-  limbo_die_node *node;
+  /* The point here is to flush out the limbo list so that it is empty
+     and we don't need to stream it for LTO.  */
+  flush_limbo_die_list ();
+
+  gen_scheduled_generic_parms_dies ();
+  gen_remaining_tmpl_value_param_die_attribute ();
 
   /* Add DW_AT_linkage_name for all deferred DIEs.  */
-  for (node = deferred_asm_name; node; node = node->next)
+  for (limbo_die_node *node = deferred_asm_name; node; node = node->next)
     {
       tree decl = node->created_for;
       if (DECL_ASSEMBLER_NAME (decl) != DECL_NAME (decl)
@@ -27703,13 +27708,6 @@ dwarf2out_early_finish (void)
 	}
     }
   deferred_asm_name = NULL;
-
-  /* The point here is to flush out the limbo list so that it is empty
-     and we don't need to stream it for LTO.  */
-  flush_limbo_die_list ();
-
-  gen_scheduled_generic_parms_dies ();
-  gen_remaining_tmpl_value_param_die_attribute ();
 }
 
 /* Reset all state within dwarf2out.c so that we can rerun the compiler
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d305b0f5900..b0bdc245e67 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-03-17  Richard Biener  <rguenther@suse.de>
+
+	PR debug/70271
+	* g++.dg/debug/pr70271.C: New testcase.
+
 2016-03-17  Ilya Enkovich  <enkovich.gnu@gmail.com>
 
 	* gcc.target/i386/pr70251.c: New test.
diff --git a/gcc/testsuite/g++.dg/debug/pr70271.C b/gcc/testsuite/g++.dg/debug/pr70271.C
new file mode 100644
index 00000000000..3c96d3a49e9
--- /dev/null
+++ b/gcc/testsuite/g++.dg/debug/pr70271.C
@@ -0,0 +1,36 @@
+// { dg-do compile }
+
+template <typename Function>
+struct function_traits
+: public function_traits<decltype(&Function::operator())> 
+{ };
+
+template <typename ClassType, typename ReturnType, typename... Args>
+struct function_traits<ReturnType(ClassType::*)(Args...) const> 
+{
+  typedef ReturnType (*pointer)(Args...);
+  typedef ReturnType return_type;
+};
+
+template <typename Function>
+typename function_traits<Function>::pointer
+FunctionPointer (const Function& lambda) 
+{
+  return static_cast<typename function_traits<Function>::pointer>(lambda);
+}
+
+template <typename Function>
+typename function_traits<Function>::return_type
+GetReturnValue (Function func) 
+{
+  typename function_traits<Function>::return_type *dummy;
+  return *dummy;
+}
+template <typename T> class ClassFoo {};
+template <typename T> void FuncBar () { }
+
+template <> inline void FuncBar<double> ()
+{
+  typedef void (*func_type)(ClassFoo<double> &);
+  func_type f1 = FunctionPointer ([](ClassFoo<double> & ref) { });
+}
-- 
2.30.2