Scale invocation count by the number of BBs in the flow-graph of a method.

runtime/vm/code_generator.cc

Index: runtime/vm/code_generator.cc
diff --git a/runtime/vm/code_generator.cc b/runtime/vm/code_generator.cc
index 7150d3dd2496c1717bc25ca54800cbc3daa36d87..3f7a7874fe8c5894b93089a0ecf01c54e381feae 100644
--- a/runtime/vm/code_generator.cc
+++ b/runtime/vm/code_generator.cc
@@ -35,6 +35,10 @@ DEFINE_FLAG(int, max_subtype_cache_entries, 100,
     "Maximum number of subtype cache entries (number of checks cached).");
 DEFINE_FLAG(int, optimization_counter_threshold, 30000,
     "Function's usage-counter value before it is optimized, -1 means never");
+DEFINE_FLAG(int, optimization_counter_scale, 2000,

[kasperl, 2014/08/29 10:52:26]

2269

+    "The scale of invocation count, by size of the function.");
+DEFINE_FLAG(int, min_optimization_counter_threshold, 5000,

[Vyacheslav Egorov (Google), 2014/08/29 11:17:18]

Just move these flags to the file where they are used from, intead of defining
them here and declaring them there.

[Anders Johnsen, 2014/08/29 11:56:27]

Done.

+    "The minimum invocation count for a function.");
 DEFINE_FLAG(charp, optimization_filter, NULL, "Optimize only named function");
 DEFINE_FLAG(int, reoptimization_counter_threshold, 4000,
     "Counter threshold before a function gets reoptimized.");