re PR c/82679 (Uses of typedefs of arrays of _Atomic-qualified types are rejected)

	PR c/82679
	* c-decl.c (grokdeclarator): Check declspecs insted of atomicp.

	* gcc.dg/c11-atomic-5.c: New test.

From-SVN: r255577

gcc/c/ChangeLog

+2017-12-12  Marek Polacek  <polacek@redhat.com>
+
+	PR c/82679
+	* c-decl.c (grokdeclarator): Check declspecs insted of atomicp.
+
 2017-12-12  Alexandre Oliva <aoliva@redhat.com>
 
 	* c-objc-common.h (LANG_HOOKS_EMITS_BEGIN_STMT): Redefine as true.

gcc/c/c-decl.c

@@ -5813,7 +5813,7 @@ grokdeclarator (const struct c_declarator *declarator,
      of typedefs or typeof) must be detected here.  If the qualifier
      is introduced later, any appearance of applying it to an array is
      actually applying it to an element of that array.  */
-  if (atomicp && TREE_CODE (type) == ARRAY_TYPE)
+  if (declspecs->atomic_p && TREE_CODE (type) == ARRAY_TYPE)
     error_at (loc, "%<_Atomic%>-qualified array type");
 
   /* Warn about storage classes that are invalid for certain

gcc/testsuite/ChangeLog

+2017-12-12  Marek Polacek  <polacek@redhat.com>
+
+	PR c/82679
+	* gcc.dg/c11-atomic-5.c: New test.
+
 2017-12-12  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/83363

gcc/testsuite/gcc.dg/c11-atomic-5.c

+/* PR c/82679 */
+/* { dg-do compile } */
+/* { dg-options "-std=gnu11" } */
+
+typedef _Atomic int A[10];
+A a;
+
+typedef _Atomic int I;
+typedef I T[10];
+T t;