re PR c/89734 (const qualifier on return type not erased inside __typeof__)

	PR c/89734
	* c-decl.c (grokdeclarator): Call c_build_qualified_type on function
	return type even if quals_used is 0.  Formatting fixes.

	* gcc.dg/pr89734.c: New test.

From-SVN: r269789

gcc/c/ChangeLog

+2019-03-19  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/89734
+	* c-decl.c (grokdeclarator): Call c_build_qualified_type on function
+	return type even if quals_used is 0.  Formatting fixes.
+
 2019-03-14  Richard Biener  <rguenther@suse.de>
 
 	* c-tree.h (enum c_declspec_il): New.

gcc/c/c-decl.c

@@ -6611,10 +6611,12 @@ grokdeclarator (const struct c_declarator *declarator,
 		  quals_used &= TYPE_QUAL_ATOMIC;
 		if (quals_used && VOID_TYPE_P (type) && really_funcdef)
 		  pedwarn (specs_loc, 0,
-			   "function definition has qualified void return type");
+			   "function definition has qualified void "
+			   "return type");
 		else
 		  warning_at (specs_loc, OPT_Wignored_qualifiers,
-			   "type qualifiers ignored on function return type");
+			      "type qualifiers ignored on function "
+			      "return type");
 
 		/* Ensure an error for restrict on invalid types; the
 		   DR#423 resolution is not entirely clear about
@@ -6624,8 +6626,7 @@ grokdeclarator (const struct c_declarator *declarator,
 		    && (!POINTER_TYPE_P (type)
 			|| !C_TYPE_OBJECT_OR_INCOMPLETE_P (TREE_TYPE (type))))
 		  error_at (loc, "invalid use of %<restrict%>");
-		if (quals_used)
-		  type = c_build_qualified_type (type, quals_used);
+		type = c_build_qualified_type (type, quals_used);
 	      }
 	    type_quals = TYPE_UNQUALIFIED;
 

gcc/testsuite/ChangeLog

+2019-03-19  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/89734
+	* gcc.dg/pr89734.c: New test.
+
 2019-03-18  Martin Sebor  <msebor@redhat.com>
 
 	PR tree-optimization/89720

gcc/testsuite/gcc.dg/pr89734.c

+/* PR c/89734 */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+typedef const int CI;
+typedef _Atomic int AI;
+
+CI foo (void);
+const int foo (void);
+
+AI baz (void);
+_Atomic int baz (void);