tree-pretty-print.c (dump_generic_node): For -gimple properly dump negative…

tree-pretty-print.c (dump_generic_node): For -gimple properly dump negative integer constants using _Literal (type) -num.

2019-03-14  Richard Biener  <rguenther@suse.de>

	* tree-pretty-print.c (dump_generic_node): For -gimple properly
	dump negative integer constants using _Literal (type) -num.

From-SVN: r269645

gcc/ChangeLog

+2019-03-14  Richard Biener  <rguenther@suse.de>
+
+	* tree-pretty-print.c (dump_generic_node): For -gimple properly
+	dump negative integer constants using _Literal (type) -num.
+
 2019-03-13  Jakub Jelinek  <jakub@redhat.com>
 
 	* ipa-param-manipulation.h (struct ipa_parm_adjustment): Remove

gcc/tree-pretty-print.c

@@ -1830,7 +1830,8 @@ dump_generic_node (pretty_printer *pp, tree node, int spc, dump_flags_t flags,
 	  && (POINTER_TYPE_P (TREE_TYPE (node))
 	      || (TYPE_PRECISION (TREE_TYPE (node))
 		  < TYPE_PRECISION (integer_type_node))
-	      || exact_log2 (TYPE_PRECISION (TREE_TYPE (node))) == -1))
+	      || exact_log2 (TYPE_PRECISION (TREE_TYPE (node))) == -1
+	      || tree_int_cst_sgn (node) < 0))
 	{
 	  pp_string (pp, "_Literal (");
 	  dump_generic_node (pp, TREE_TYPE (node), spc, flags, false);