re PR tree-optimization/79576 (ICE in gimple_stmt_nonnegative_warnv_p in gcc/gimple-fold.c:6979)

2017-02-17  Richard Biener  <rguenther@suse.de>

	PR middle-end/79576
	* params.def (max-ssa-name-query-depth): Limit to 10.

From-SVN: r245529

gcc/ChangeLog

 2017-02-17  Richard Biener  <rguenther@suse.de>
 
+	PR middle-end/79576
+	* params.def (max-ssa-name-query-depth): Limit to 10.
+
+2017-02-17  Richard Biener  <rguenther@suse.de>
+
 	PR tree-optimization/79552
 	* tree-ssa-structalias.c (visit_loadstore): Properly verify
 	default defs.

gcc/params.def

@@ -1237,7 +1237,7 @@ DEFPARAM (PARAM_MAX_SSA_NAME_QUERY_DEPTH,
 	  "max-ssa-name-query-depth",
 	  "Maximum recursion depth allowed when querying a property of an"
 	  " SSA name.",
-	  3, 1, 0)
+	  3, 1, 10)
 
 DEFPARAM (PARAM_MAX_RTL_IF_CONVERSION_INSNS,
 	  "max-rtl-if-conversion-insns",