re PR target/20673 (C PCH testsuite assembly comparison failure)

	PR c++/20673
	* decl.c (grokdeclarator): Correct attribute handling.

	PR c++/20673
	* g++.dg/ext/attrib21.C: New test.

From-SVN: r97640

gcc/cp/decl.c

@@ -7059,9 +7059,7 @@ grokdeclarator (const cp_declarator *declarator,
 
   /* Determine the type of the entity declared by recurring on the
      declarator.  */
-  for (;
-       declarator && declarator->kind != cdk_id;
-       declarator = declarator->declarator)
+  for (; declarator; declarator = declarator->declarator)
     {
       const cp_declarator *inner_declarator;
       tree attrs;
@@ -7069,8 +7067,6 @@ grokdeclarator (const cp_declarator *declarator,
       if (type == error_mark_node)
 	return error_mark_node;
 
-      inner_declarator = declarator->declarator;
-
       attrs = declarator->attributes;
       if (attrs)
 	{
@@ -7088,6 +7084,11 @@ grokdeclarator (const cp_declarator *declarator,
 					    attr_flags);
 	}
 
+      if (declarator->kind == cdk_id)
+	break;
+
+      inner_declarator = declarator->declarator;
+
       switch (declarator->kind)
 	{
 	case cdk_array:

gcc/testsuite/g++.dg/ext/attrib21.C

+// PR c++/20673
+
+typedef void *voidp;
+
+struct S
+{
+  char a;
+  voidp __attribute__ ((aligned (16))) b;
+};
+
+struct T
+{
+  char a;
+  void *__attribute__ ((aligned (16))) b;
+};
+
+int f[sizeof (struct S) != sizeof (struct T) ? -1 : 1];