c-parse.in (stmts_and_decls): Make label at end of compound statement a hard error.

	* c-parse.in (stmts_and_decls): Make label at end of compound
	statement a hard error.

testsuite:
	* gcc.dg/label-compound-stmt-1.c: New test.
	* gcc.c-torture/compile/950922-1.c,
	gcc.c-torture/compile/20000211-3.c,
	gcc.c-torture/compile/20000518-1.c,
	gcc.c-torture/compile/20021108-1.c: Avoid labels at and of
	compound statements.

From-SVN: r75891

gcc/ChangeLog

+2004-01-14  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	* c-parse.in (stmts_and_decls): Make label at end of compound
+	statement a hard error.
+
 2004-01-14  Jan Hubicka  <jh@suse.cz>
 
 	* cgraph.c (create_edge): Use local.redefined_extern_inline.

gcc/c-parse.in

 /* YACC parser for C syntax and for Objective C.  -*-c-*-
-   Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996,
-   1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997,
+   1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -2001,7 +2001,7 @@ stmts_and_decls:
 	| lineno_stmt_decl_or_labels_ending_decl
 	| lineno_stmt_decl_or_labels_ending_label
 		{
-		  pedwarn ("deprecated use of label at end of compound statement");
+		  error ("label at end of compound statement");
 		}
 	| lineno_stmt_decl_or_labels_ending_error
 	;

gcc/testsuite/ChangeLog

+2004-01-14  Joseph S. Myers  <jsm@polyomino.org.uk>
+
+	* gcc.dg/label-compound-stmt-1.c: New test.
+	* gcc.c-torture/compile/950922-1.c,
+	gcc.c-torture/compile/20000211-3.c,
+	gcc.c-torture/compile/20000518-1.c,
+	gcc.c-torture/compile/20021108-1.c: Avoid labels at and of
+	compound statements.
+
 2004-01-14  Hartmut Penner  <hpenner@de.ibm.com>
 
 	* gcc.dg/ppc64-abi-1.c: New test.

gcc/testsuite/gcc.c-torture/compile/20000211-3.c

@@ -3,7 +3,7 @@ void f_clos(int x)
 {        
         switch(x) {
                 default:
-                mumble:
+                mumble:;
         }
 }
 

gcc/testsuite/gcc.c-torture/compile/20000518-1.c

@@ -6,7 +6,7 @@ extern __inline__ void test()
 
 	callit1(&&l1);
 
-l1:
+l1:;
 
 }
 

gcc/testsuite/gcc.c-torture/compile/20021108-1.c

@@ -3,5 +3,5 @@ main()
 {
 l1:
   return &&l1-&&l2;
-l2:
+l2:;
 }

gcc/testsuite/gcc.c-torture/compile/950922-1.c

@@ -40,7 +40,7 @@ f (int ch, char *fp, char *ap)
     nosign:
       if (_uquad != 0 || prec != 0);
       break;
-    default:
+    default:;
     }
     if ((f & 0x100) == 0) {
     } else {
@@ -64,5 +64,5 @@ f (int ch, char *fp, char *ap)
     }
   }
 
- error:
+ error:;
 }

gcc/testsuite/gcc.dg/label-compound-stmt-1.c

+/* Test that labels at ends of compound statements are hard errors.  */
+/* Origin: Joseph Myers <jsm@polyomino.org.uk> */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void f(void) { g: } /* { dg-bogus "warning" "warning in place of error" } */
+/* { dg-error "label|parse|syntax" "label at end of compound statement" { target *-*-* } 6 } */