re PR c/70671 (Wrong column number shown for "error: cannot take address of bit-field")

	PR c/70671
	* c-typeck.c (build_unary_op): Pass location down to error and
	warning call.

	* gcc.dg/bitfld-22.c: New test.

From-SVN: r235032

gcc/c/ChangeLog

+2016-04-15  Marek Polacek  <polacek@redhat.com>
+
+	PR c/70671
+	* c-typeck.c (build_unary_op): Pass location down to error and
+	warning call.
+
 2016-04-15  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/70436

gcc/c/c-typeck.c

@@ -4436,7 +4436,7 @@ build_unary_op (location_t location,
 	case COMPONENT_REF:
 	  if (DECL_C_BIT_FIELD (TREE_OPERAND (arg, 1)))
 	    {
-	      error ("cannot take address of bit-field %qD",
+	      error_at (location, "cannot take address of bit-field %qD",
 			TREE_OPERAND (arg, 1));
 	      return error_mark_node;
 	    }
@@ -4449,15 +4449,16 @@ build_unary_op (location_t location,
 	      if (!AGGREGATE_TYPE_P (TREE_TYPE (arg))
 		  && !VECTOR_TYPE_P (TREE_TYPE (arg)))
 		{
-		  error ("cannot take address of scalar with reverse storage "
-			 "order");
+		  error_at (location, "cannot take address of scalar with "
+			    "reverse storage order");
 		  return error_mark_node;
 		}
 
 	      if (TREE_CODE (TREE_TYPE (arg)) == ARRAY_TYPE
 		  && TYPE_REVERSE_STORAGE_ORDER (TREE_TYPE (arg)))
-		warning (OPT_Wscalar_storage_order, "address of array with "
-			"reverse scalar storage order requested");
+		warning_at (location, OPT_Wscalar_storage_order,
+			    "address of array with reverse scalar storage "
+			    "order requested");
 	    }
 
 	default:

gcc/testsuite/ChangeLog

+2016-04-15  Marek Polacek  <polacek@redhat.com>
+
+	PR c/70671
+	* gcc.dg/bitfld-22.c: New test.
+
 2016-04-15  Bernd Schmidt  <bschmidt@redhat.com>
 
 	* gcc.target/i386/pr46470.c: Add -mno-red-zone to dg-options for

gcc/testsuite/gcc.dg/bitfld-22.c

+/* PR c/70671 */
+/* { dg-do compile } */
+
+extern void bar (int *);
+
+struct S
+{
+  int x:2;
+} s, *r;
+
+void
+foo (void)
+{
+  int *p1 = &s.x; /* { dg-error "13:cannot take address of bit-field 'x'" } */
+  int *p2;
+  p2 = &s.x; /* { dg-error "8:cannot take address of bit-field 'x'" } */
+  bar (&s.x); /* { dg-error "8:cannot take address of bit-field 'x'" } */
+}