Fix PR c++/62212 (ICE during mangling of array type)

gcc/cp/ChangeLog:

	PR c++/62212
	* tree.c (build_cplus_array_type): Determine type-dependentess
	with uses_template_parms instead of with dependent_type_p.

gcc/testsuite/ChangeLog:

	PR c++/62212
	* g++.dg/template/mangle2.C: New test.

From-SVN: r234457

gcc/cp/ChangeLog

+2016-03-24  Patrick Palka  <ppalka@gcc.gnu.org>
+
+	PR c++/62212
+	* tree.c (build_cplus_array_type): Determine type-dependentess
+	with uses_template_parms instead of with dependent_type_p.
+
 2016-03-23  Patrick Palka  <ppalka@gcc.gnu.org>
 
 	PR c++/70347

gcc/cp/tree.c

@@ -824,9 +824,8 @@ build_cplus_array_type (tree elt_type, tree index_type)
   if (elt_type == error_mark_node || index_type == error_mark_node)
     return error_mark_node;
 
-  bool dependent = (processing_template_decl
-		    && (dependent_type_p (elt_type)
-			|| (index_type && dependent_type_p (index_type))));
+  bool dependent = (uses_template_parms (elt_type)
+		    || (index_type && uses_template_parms (index_type)));
 
   if (elt_type != TYPE_MAIN_VARIANT (elt_type))
     /* Start with an array of the TYPE_MAIN_VARIANT.  */

gcc/testsuite/ChangeLog

+2016-03-24  Patrick Palka  <ppalka@gcc.gnu.org>
+
+	PR c++/62212
+	* g++.dg/template/mangle2.C: New test.
+
 2016-03-24  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/70396

gcc/testsuite/g++.dg/template/mangle2.C

+// PR c++/62212
+// { dg-do assemble }
+
+typedef int my_int;
+
+template<typename T>
+struct X {
+    enum {value = 1};
+};
+
+template<typename T>
+void f(const my_int(&)[X<T>::value]);
+
+int main() {
+    const my_int a[1] = {};
+    f<void>(a);
+}
+
+// { dg-final { scan-assembler "_Z1fIvEvRAsr1XIT_E5value_Ki" } }