re PR c++/63959 (G++ misreports volatile int as trivially copyable)

	PR c++/63959
	* tree.c (trivially_copyable_p): Check for CP_TYPE_VOLATILE_P.

From-SVN: r217893

gcc/cp/ChangeLog

+2014-11-20  Ville Voutilainen  <ville.voutilainen@gmail.com>
+
+	PR c++/63959
+	* tree.c (trivially_copyable_p): Check for CP_TYPE_VOLATILE_P.
+
 2014-11-20  Trevor Saunders  <tsaunders@mozilla.com>
 
 	* cp-objcp-common.c: Use hash_table instead of htab.

gcc/cp/tree.c

@@ -3206,7 +3206,7 @@ trivially_copyable_p (const_tree t)
 	    && !TYPE_HAS_COMPLEX_MOVE_ASSIGN (t)
 	    && TYPE_HAS_TRIVIAL_DESTRUCTOR (t));
   else
-    return scalarish_type_p (t);
+    return !CP_TYPE_VOLATILE_P (t) && scalarish_type_p (t);
 }
 
 /* Returns 1 iff type T is a trivial type, as defined in [basic.types] and

gcc/testsuite/g++.dg/ext/is_trivially_constructible1.C

@@ -33,3 +33,6 @@ SA(__is_trivially_constructible(int,double));
 SA(!__is_trivially_constructible(int,B));
 
 SA(!__is_trivially_constructible(D));
+
+SA(__is_trivially_copyable(int));
+SA(!__is_trivially_copyable(volatile int));

libstdc++-v3/testsuite/20_util/is_trivially_copyable/value.cc

@@ -47,6 +47,8 @@ void test01()
 
   static_assert(test_property<is_trivially_copyable, 
 		int>(true), "");
+  static_assert(test_property<is_trivially_copyable,
+		volatile int>(false), "");
   static_assert(test_property<is_trivially_copyable, 
 		TType>(true), "");
   static_assert(test_property<is_trivially_copyable,