Respect --param ipa-max-agg-items=0

2016-05-18  Martin Jambor  <mjambor@suse.cz>

	PR ipa/70646
	* ipa-prop.c (determine_locally_known_aggregate_parts): Bail out early
	if parameter PARAM_IPA_MAX_AGG_ITEMS is zero.

From-SVN: r236390

gcc/ChangeLog

 2016-05-18  Martin Jambor  <mjambor@suse.cz>
 
 	PR ipa/70646
+	* ipa-prop.c (determine_locally_known_aggregate_parts): Bail out early
+	if parameter PARAM_IPA_MAX_AGG_ITEMS is zero.
+
+2016-05-18  Martin Jambor  <mjambor@suse.cz>
+
+	PR ipa/70646
 	* ipa-inline.h (condition): New field size.
 	* ipa-inline-analysis.c (add_condition): New parameter SIZE, use it
 	for comaprison and store it into the new condition.

gcc/ipa-prop.c

@@ -1414,6 +1414,9 @@ determine_locally_known_aggregate_parts (gcall *call, tree arg,
   bool check_ref, by_ref;
   ao_ref r;
 
+  if (PARAM_VALUE (PARAM_IPA_MAX_AGG_ITEMS) == 0)
+    return;
+
   /* The function operates in three stages.  First, we prepare check_ref, r,
      arg_base and arg_offset based on what is actually passed as an actual
      argument.  */