re PR c/71418 (gcc ICE on x86_64-linux-gnu in min_align_of_type, at stor-layout.c:2402)

	PR c/71418
	* c-decl.c (grokdeclarator): Check TYPE_P.

	* gcc.dg/noncompile/pr71418.c: New test.

From-SVN: r237195

gcc/c/ChangeLog

+2016-06-08  Marek Polacek  <polacek@redhat.com>
+
+	PR c/71418
+	* c-decl.c (grokdeclarator): Check TYPE_P.
+
 2016-06-07  David Malcolm  <dmalcolm@redhat.com>
 
 	* c-parser.c (c_parser_postfix_expression): In __builtin_offsetof

gcc/c/c-decl.c

@@ -6313,7 +6313,7 @@ grokdeclarator (const struct c_declarator *declarator,
 	}
       else if (TREE_CODE (type) == FUNCTION_TYPE)
 	error_at (loc, "alignment specified for function %qE", name);
-      else if (declspecs->align_log != -1)
+      else if (declspecs->align_log != -1 && TYPE_P (type))
 	{
 	  alignas_align = 1U << declspecs->align_log;
 	  if (alignas_align < min_align_of_type (type))

gcc/testsuite/ChangeLog

+2016-06-08  Marek Polacek  <polacek@redhat.com>
+
+	PR c/71418
+	* gcc.dg/noncompile/pr71418.c: New test.
+
 2016-06-07  Jan Hubicka  <hubicka@ucw.cz>
 
 	* gcc.dg/ipa/inlinehint-4.c: Disable partial inlining.

gcc/testsuite/gcc.dg/noncompile/pr71418.c

+/* PR c/71418 */
+/* { dg-do compile } */
+
+_Alignas (int) int a[7++]; /* { dg-error "lvalue required" } */