c-parser.c (c_parser_omp_atomic): Pass location of assignment operator to c_finish_omp_atomic.

gcc
	* c-parser.c (c_parser_omp_atomic): Pass location of assignment
	operator to c_finish_omp_atomic.
	* c-typeck.c (lvalue_or_else): Add 'loc' argument.
	(build_unary_op): Update.
	(build_modify_expr): Update.
	(build_asm_expr): Update.
gcc/cp
	* typeck.c (cp_build_addr_expr_1): Update call to lvalue_error.
	(lvalue_or_else): Likewise.
gcc/c-family
	* c-common.h (lvalue_error): Update.
	* c-common.c (lvalue_error): Add 'loc' argument.  Call error_at,
	not error.

From-SVN: r168514

gcc/ChangeLog

@@ -1,3 +1,12 @@
+2011-01-05  Tom Tromey  <tromey@redhat.com>
+
+	* c-parser.c (c_parser_omp_atomic): Pass location of assignment
+	operator to c_finish_omp_atomic.
+	* c-typeck.c (lvalue_or_else): Add 'loc' argument.
+	(build_unary_op): Update.
+	(build_modify_expr): Update.
+	(build_asm_expr): Update.
+
 2011-01-05  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
 
 	* config/spu/spu.c (emit_nop_for_insn): Set INSN_LOCATOR for

gcc/c-family/ChangeLog

@@ -1,3 +1,9 @@
+2011-01-05  Tom Tromey  <tromey@redhat.com>
+
+	* c-common.h (lvalue_error): Update.
+	* c-common.c (lvalue_error): Add 'loc' argument.  Call error_at,
+	not error.
+
 2010-12-29  Nicola Pero  <nicola@nicola.brainstorm.co.uk>
 
 	PR objc/47075

gcc/c-family/c-common.c

@@ -1,6 +1,6 @@
 /* Subroutines shared by all languages that are variants of C.
    Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
-   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -8631,27 +8631,28 @@ readonly_error (tree arg, enum lvalue_use use)
 }
 
 /* Print an error message for an invalid lvalue.  USE says
-   how the lvalue is being used and so selects the error message.  */
+   how the lvalue is being used and so selects the error message.  LOC
+   is the location for the error.  */
 
 void
-lvalue_error (enum lvalue_use use)
+lvalue_error (location_t loc, enum lvalue_use use)
 {
   switch (use)
     {
     case lv_assign:
-      error ("lvalue required as left operand of assignment");
+      error_at (loc, "lvalue required as left operand of assignment");
       break;
     case lv_increment:
-      error ("lvalue required as increment operand");
+      error_at (loc, "lvalue required as increment operand");
       break;
     case lv_decrement:
-      error ("lvalue required as decrement operand");
+      error_at (loc, "lvalue required as decrement operand");
       break;
     case lv_addressof:
-      error ("lvalue required as unary %<&%> operand");
+      error_at (loc, "lvalue required as unary %<&%> operand");
       break;
     case lv_asm:
-      error ("lvalue required in asm statement");
+      error_at (loc, "lvalue required in asm statement");
       break;
     default:
       gcc_unreachable ();

gcc/c-family/c-common.h

@@ -1,6 +1,6 @@
 /* Definitions for c-common.c.
    Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -929,7 +929,7 @@ enum lvalue_use {
 };
 
 extern void readonly_error (tree, enum lvalue_use);
-extern void lvalue_error (enum lvalue_use);
+extern void lvalue_error (location_t, enum lvalue_use);
 extern void invalid_indirection_error (location_t, tree, ref_operator);
 
 extern int complete_array_type (tree *, tree, bool);

gcc/c-parser.c

@@ -1,6 +1,6 @@
 /* Parser for C and Objective-C.
    Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
    Parser actions based on the old Bison parser; structure somewhat
@@ -9104,6 +9104,9 @@ c_parser_omp_atomic (location_t loc, c_parser *parser)
 	  goto saw_error;
 	}
 
+      /* Arrange to pass the location of the assignment operator to
+	 c_finish_omp_atomic.  */
+      loc = c_parser_peek_token (parser)->location;
       c_parser_consume_token (parser);
       {
 	location_t rhs_loc = c_parser_peek_token (parser)->location;

gcc/c-typeck.c

@@ -1,6 +1,6 @@
 /* Build expressions with type checking for C compiler.
    Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -98,7 +98,7 @@ static void set_nonincremental_init (struct obstack *);
 static void set_nonincremental_init_from_string (tree, struct obstack *);
 static tree find_init_member (tree, struct obstack *);
 static void readonly_warning (tree, enum lvalue_use);
-static int lvalue_or_else (const_tree, enum lvalue_use);
+static int lvalue_or_else (location_t, const_tree, enum lvalue_use);
 static void record_maybe_used_decl (tree);
 static int comptypes_internal (const_tree, const_tree, bool *, bool *);
 
@@ -3564,7 +3564,8 @@ build_unary_op (location_t location,
       /* Complain about anything that is not a true lvalue.  In
 	 Objective-C, skip this check for property_refs.  */
       if (!objc_is_property_ref (arg) 
-	  && !lvalue_or_else (arg, ((code == PREINCREMENT_EXPR
+	  && !lvalue_or_else (location,
+			      arg, ((code == PREINCREMENT_EXPR
 				     || code == POSTINCREMENT_EXPR)
 				    ? lv_increment
 				    : lv_decrement)))
@@ -3747,7 +3748,7 @@ build_unary_op (location_t location,
       /* Anything not already handled and not a true memory reference
 	 or a non-lvalue array is an error.  */
       else if (typecode != FUNCTION_TYPE && !flag
-	       && !lvalue_or_else (arg, lv_addressof))
+	       && !lvalue_or_else (location, arg, lv_addressof))
 	return error_mark_node;
 
       /* Move address operations inside C_MAYBE_CONST_EXPR to simplify
@@ -3905,15 +3906,16 @@ readonly_warning (tree arg, enum lvalue_use use)
 
 /* Return nonzero if REF is an lvalue valid for this language;
    otherwise, print an error message and return zero.  USE says
-   how the lvalue is being used and so selects the error message.  */
+   how the lvalue is being used and so selects the error message.
+   LOCATION is the location at which any error should be reported.  */
 
 static int
-lvalue_or_else (const_tree ref, enum lvalue_use use)
+lvalue_or_else (location_t loc, const_tree ref, enum lvalue_use use)
 {
   int win = lvalue_p (ref);
 
   if (!win)
-    lvalue_error (use);
+    lvalue_error (loc, use);
 
   return win;
 }
@@ -4801,7 +4803,7 @@ build_modify_expr (location_t location, tree lhs, tree lhs_origtype,
     return error_mark_node;
 
   /* For ObjC properties, defer this check.  */
-  if (!objc_is_property_ref (lhs) && !lvalue_or_else (lhs, lv_assign))
+  if (!objc_is_property_ref (lhs) && !lvalue_or_else (location, lhs, lv_assign))
     return error_mark_node;
 
   if (TREE_CODE (rhs) == EXCESS_PRECISION_EXPR)
@@ -4851,7 +4853,7 @@ build_modify_expr (location_t location, tree lhs, tree lhs_origtype,
 	return result;
 
       /* Else, do the check that we postponed for Objective-C.  */
-      if (!lvalue_or_else (lhs, lv_assign))
+      if (!lvalue_or_else (location, lhs, lv_assign))
 	return error_mark_node;
     }
 
@@ -8479,7 +8481,7 @@ build_asm_expr (location_t loc, tree string, tree outputs, tree inputs,
 	 get an error.  Gross, but ...  */
       STRIP_NOPS (output);
 
-      if (!lvalue_or_else (output, lv_asm))
+      if (!lvalue_or_else (loc, output, lv_asm))
 	output = error_mark_node;
 
       if (output != error_mark_node

gcc/cp/ChangeLog

@@ -1,3 +1,8 @@
+2011-01-05  Tom Tromey  <tromey@redhat.com>
+
+	* typeck.c (cp_build_addr_expr_1): Update call to lvalue_error.
+	(lvalue_or_else): Likewise.
+
 2011-01-01  Kai Tietz  <kai.tietz@onevision.com>
 
 	PR target/38662

gcc/cp/typeck.c

@@ -1,6 +1,6 @@
 /* Build expressions with type checking for C++ compiler.
    Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
    Hacked by Michael Tiemann (tiemann@cygnus.com)
 
@@ -4756,7 +4756,7 @@ cp_build_addr_expr_1 (tree arg, bool strict_lvalue, tsubst_flags_t complain)
       if (kind == clk_none)
 	{
 	  if (complain & tf_error)
-	    lvalue_error (lv_addressof);
+	    lvalue_error (input_location, lv_addressof);
 	  return error_mark_node;
 	}
       if (strict_lvalue && (kind & (clk_rvalueref|clk_class)))
@@ -8219,7 +8219,7 @@ lvalue_or_else (tree ref, enum lvalue_use use, tsubst_flags_t complain)
   if (kind == clk_none)
     {
       if (complain & tf_error)
-	lvalue_error (use);
+	lvalue_error (input_location, use);
       return 0;
     }
   else if (kind & (clk_rvalueref|clk_class))