re PR c++/19508 (dwarf2, ICE on __attribute__(aligned) in class template)

2005-01-20  Giovanni Bajo  <giovannibajo@gcc.gnu.org>

        PR c++/19508
        * g++.dg/ext/attrib20.C: New test.

2005-01-20  Giovanni Bajo  <giovannibajo@gcc.gnu.org>

        PR c++/19508
        * decl2.c (grokfield): Do not apply attributes to template parameters
        as they are ignored by tsubst anyway.

From-SVN: r95230

gcc/cp/ChangeLog

+2005-01-20  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
+
+	PR c++/19508
+	* decl2.c (grokfield): Do not apply attributes to template parameters
+	as they are ignored by tsubst anyway.
+
 2005-02-18  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/19813

gcc/cp/decl2.c

@@ -878,7 +878,16 @@ grokfield (const cp_declarator *declarator,
 	value = push_template_decl (value);
 
       if (attrlist)
-	cplus_decl_attributes (&value, attrlist, 0);
+	{
+	  /* Avoid storing attributes in template parameters:
+	     tsubst is not ready to handle them.  */
+	  tree type = TREE_TYPE (value);
+	  if (TREE_CODE (type) == TEMPLATE_TYPE_PARM
+	      || TREE_CODE (type) == BOUND_TEMPLATE_TEMPLATE_PARM)
+	    sorry ("applying attributes to template parameters is not implemented");
+	  else
+	    cplus_decl_attributes (&value, attrlist, 0);
+	}
 
       return value;
     }

gcc/testsuite/ChangeLog

+2005-01-20  Giovanni Bajo  <giovannibajo@gcc.gnu.org>
+
+        PR c++/19508
+        * g++.dg/ext/attrib20.C: New test.
+
 2004-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR middle-end/20030

gcc/testsuite/g++.dg/ext/attrib20.C

+// { dg-do compile }
+// { dg-options "-g" }
+// Origin: <jan at etpmod dot phys dot tue dot nl>
+// PR c++/19508: avoid attributes for template parameters
+
+template <typename T>
+struct BVector
+{
+  typedef T T2;
+  typedef T value_type __attribute__ ((aligned(8)));    // { dg-bogus "attribute" "attribute" { xfail *-*-* } }
+  typedef T2 value_type2 __attribute__ ((aligned(8)));  // { dg-bogus "attribute" "attribute" { xfail *-*-* } }
+  value_type v;
+};
+BVector<int> m;
+
+template <template <class> class T>
+struct BV2
+{
+  typedef T<float> value_type __attribute__((aligned(8))); // { dg-bogus "attribute" "attribute" { xfail *-*-* } }
+  value_type v;
+};
+BV2<BVector> m2;
+