params.def (PARAM_IPA_CP_ARRAY_INDEX_HINT_BONUS): New parameter.

2013-03-20  Martin Jambor  <mjambor@suse.cz>

	* params.def (PARAM_IPA_CP_ARRAY_INDEX_HINT_BONUS): New parameter.
	* ipa-cp.c (hint_time_bonus): Add abonus for known array indices.

From-SVN: r196832

gcc/ChangeLog

+2013-03-20  Martin Jambor  <mjambor@suse.cz>
+
+	* params.def (PARAM_IPA_CP_ARRAY_INDEX_HINT_BONUS): New parameter.
+	* ipa-cp.c (hint_time_bonus): Add abonus for known array indices.
+
 2013-03-20  Pat Haugen <pthaugen@us.ibm.com>
 
 	* config/rs6000/predicates.md (indexed_address, update_address_mem

gcc/ipa-cp.c

@@ -1622,9 +1622,12 @@ devirtualization_time_bonus (struct cgraph_node *node,
 static int
 hint_time_bonus (inline_hints hints)
 {
+  int result = 0;
   if (hints & (INLINE_HINT_loop_iterations | INLINE_HINT_loop_stride))
-    return PARAM_VALUE (PARAM_IPA_CP_LOOP_HINT_BONUS);
-  return 0;
+    result += PARAM_VALUE (PARAM_IPA_CP_LOOP_HINT_BONUS);
+  if (hints & INLINE_HINT_array_index)
+    result += PARAM_VALUE (PARAM_IPA_CP_ARRAY_INDEX_HINT_BONUS);
+  return result;
 }
 
 /* Return true if cloning NODE is a good idea, given the estimated TIME_BENEFIT

gcc/params.def

@@ -919,6 +919,12 @@ DEFPARAM (PARAM_IPA_CP_LOOP_HINT_BONUS,
 	  "bounds or strides known.",
 	  64, 0, 0)
 
+DEFPARAM (PARAM_IPA_CP_ARRAY_INDEX_HINT_BONUS,
+	  "ipa-cp-array-index-hint-bonus",
+	  "Compile-time bonus IPA-CP assigns to candidates which make an array "
+	  "index known.",
+	  48, 0, 0)
+
 /* WHOPR partitioning configuration.  */
 
 DEFPARAM (PARAM_LTO_PARTITIONS,