re PR c++/42555 (16-byte aligned double is disallowed only in templates)

	PR c++/42555
	* pt.c (tsubst_decl): Don't apply type attributes in place.

From-SVN: r155628

gcc/cp/ChangeLog

 2010-01-04  Jason Merrill  <jason@redhat.com>
 
+	PR c++/42555
+	* pt.c (tsubst_decl): Don't apply type attributes in place.
+
 	PR c++/42567
 	* semantics.c (describable_type): Remove decltype comment and
 	semantics.

gcc/cp/pt.c

@@ -9400,7 +9400,7 @@ tsubst_decl (tree t, tree args, tsubst_flags_t complain)
 	TREE_CHAIN (r) = NULL_TREE;
 
 	apply_late_template_attributes (&r, DECL_ATTRIBUTES (r),
-					(int) ATTR_FLAG_TYPE_IN_PLACE,
+					/*flags=*/0,
 					args, complain, in_decl);
 
 	/* Preserve a typedef that names a type.  */

gcc/testsuite/ChangeLog

 2010-01-04  Jason Merrill  <jason@redhat.com>
 
+	PR c++/42555
+	* g++.dg/ext/attrib35.C: New.
+
 	PR c++/42567
 	* g++.dg/cpp0x/auto17.C: New.
 

gcc/testsuite/g++.dg/ext/attrib35.C

+// { dg-do compile { target i*86-*-* x86_64-*-* } }
+// { dg-options "-O3 -msse2" }
+
+// You can make NON-template typedefs with a large alignment.
+typedef double AlignedDoubleType __attribute__((aligned(16)));
+
+template <typename RealType>
+RealType f(const RealType* p)
+{
+  // But if you use a template parameter it complains.
+  typedef RealType AlignedRealType __attribute__((aligned(16)));
+
+  return p[0];
+}
+
+double f2(const double* p)
+{
+  return f<double>(p);
+}