re PR lto/51198 ([c++0x] [4.7 Regression] ICE with -flto and non-static data member initializers)

2011-12-01  Andrew Pinski  <apinski@cavium.com>

	PR lto/51198
	* tree.c (free_lang_data_in_decl): Clear FIELD_DECL's
	DECL_INITIAL also.

2011-12-01  Andrew Pinski  <apinski@cavium.com>

	PR lto/51198
	* g++.dg/torture/pr51198.C: New testcase.

From-SVN: r181886

gcc/ChangeLog

+2011-12-01  Andrew Pinski  <apinski@cavium.com>
+
+	PR lto/51198
+	* tree.c (free_lang_data_in_decl): Clear FIELD_DECL's
+	DECL_INITIAL also.
+
 2011-12-01  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/51246

gcc/testsuite/ChangeLog

+2011-12-01  Andrew Pinski  <apinski@cavium.com>
+
+	PR lto/51198
+	* g++.dg/torture/pr51198.C: New testcase.
+
 2011-12-01  Jakub Jelinek  <jakub@redhat.com>
 
 	PR tree-optimization/51246

gcc/testsuite/g++.dg/torture/pr51198.C

+/* { dg-options "-std=gnu++0x" } */
+
+struct A
+{
+  int i = 0 ? 0 : throw 1;
+};
+
+
+struct B
+{
+  int f();
+  int i = f();
+};
+
+struct C
+{
+  C(int);
+};
+
+struct D
+{
+  C a = 0;
+};
+
+A a;
+B b;
+D d;
+
+

gcc/tree.c

@@ -4651,7 +4651,8 @@ free_lang_data_in_decl (tree decl)
 	  || (decl_function_context (decl) && !TREE_STATIC (decl)))
 	DECL_INITIAL (decl) = NULL_TREE;
     }
-  else if (TREE_CODE (decl) == TYPE_DECL)
+  else if (TREE_CODE (decl) == TYPE_DECL
+	   || TREE_CODE (decl) == FIELD_DECL)
     DECL_INITIAL (decl) = NULL_TREE;
   else if (TREE_CODE (decl) == TRANSLATION_UNIT_DECL
            && DECL_INITIAL (decl)