Add compiler option for counting hotness in compiled code.
For eventually easier profiling of boot classpath and
system server.
bug: 30934496
Test: 674-hotness-compiled
Change-Id: I0f63c644527b74f6ef2649f481c2a1c731bb9f21
diff --git a/compiler/driver/compiler_options.h b/compiler/driver/compiler_options.h
index 3f66029..18b0913 100644
--- a/compiler/driver/compiler_options.h
+++ b/compiler/driver/compiler_options.h
@@ -274,6 +274,10 @@
return dump_stats_;
}
+ bool CountHotnessInCompiledCode() const {
+ return count_hotness_in_compiled_code_;
+ }
+
private:
bool ParseDumpInitFailures(const std::string& option, std::string* error_msg);
void ParseDumpCfgPasses(const StringPiece& option, UsageFn Usage);
@@ -336,6 +340,10 @@
// Whether code should be deduplicated.
bool deduplicate_code_;
+ // Whether compiled code should increment the hotness count of ArtMethod. Note that the increments
+ // won't be atomic for performance reasons, so we accept races, just like in interpreter.
+ bool count_hotness_in_compiled_code_;
+
RegisterAllocator::Strategy register_allocation_strategy_;
// If not null, specifies optimization passes which will be run instead of defaults.