From 109ae21a6109932b17dd412bf299285bdb0bd5d4 Mon Sep 17 00:00:00 2001
From: iveresov <unknown>
Date: Thu, 29 Sep 2011 23:09:54 -0700
Subject: [PATCH] 7096639: Tiered: Incorrect counter overflow handling for
 inlined methods Summary: Enable invocation events for inlinees Reviewed-by:
 kvn

---
 src/share/vm/c1/c1_LIRGenerator.cpp | 4 ++--
 src/share/vm/runtime/globals.hpp    | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/share/vm/c1/c1_LIRGenerator.cpp b/src/share/vm/c1/c1_LIRGenerator.cpp
index 676efe3f7..c2c2f7c7f 100644
--- a/src/share/vm/c1/c1_LIRGenerator.cpp
+++ b/src/share/vm/c1/c1_LIRGenerator.cpp
@@ -2970,8 +2970,8 @@ void LIRGenerator::do_ProfileInvoke(ProfileInvoke* x) {
   // accessors are also always mature.
   if (!x->inlinee()->is_accessor()) {
     CodeEmitInfo* info = state_for(x, x->state(), true);
-    // Increment invocation counter, don't notify the runtime, because we don't inline loops,
-    increment_event_counter_impl(info, x->inlinee(), 0, InvocationEntryBci, false, false);
+    // Notify the runtime very infrequently only to take care of counter overflows
+    increment_event_counter_impl(info, x->inlinee(), (1 << Tier23InlineeNotifyFreqLog) - 1, InvocationEntryBci, false, true);
   }
 }
 
diff --git a/src/share/vm/runtime/globals.hpp b/src/share/vm/runtime/globals.hpp
index 94d8100b7..e4ba36a56 100644
--- a/src/share/vm/runtime/globals.hpp
+++ b/src/share/vm/runtime/globals.hpp
@@ -3521,6 +3521,9 @@ class CommandLineFlags {
           "C1 with MDO profiling (tier 3) invocation notification "         \
           "frequency.")                                                     \
                                                                             \
+  product(intx, Tier23InlineeNotifyFreqLog, 20,                             \
+          "Inlinee invocation (tiers 2 and 3) notification frequency")      \
+                                                                            \
   product(intx, Tier0BackedgeNotifyFreqLog, 10,                             \
           "Interpreter (tier 0) invocation notification frequency.")        \
                                                                             \
-- 
GitLab