--- old/src/hotspot/share/opto/bytecodeInfo.cpp	2019-05-20 17:51:11.395076512 +0800
+++ new/src/hotspot/share/opto/bytecodeInfo.cpp	2019-05-20 17:51:11.187072470 +0800
@@ -325,7 +325,10 @@
   if (!UseInterpreter) {
     return false; // -Xcomp
   }
-  if (profile.count() > 0) {
+
+  // Get the snapshot of profile.count()
+  int profile_count = profile.count();
+  if (profile_count > 0) {
     return false; // reachable according to profile
   }
   if (!callee_method->was_executed_more_than(0)) {
@@ -334,10 +337,10 @@
   if (caller_method->is_not_reached(caller_bci)) {
     return true; // call site not resolved
   }
-  if (profile.count() == -1) {
-    return false; // immature profile; optimistically treat as reached
+  if (profile_count <= -1) {
+    return false; // immature or typecheck profile; optimistically treat as reached
   }
-  assert(profile.count() == 0, "sanity");
+  assert(profile_count == 0, "sanity");
 
   // Profile info is scarce.
   // Try to guess: check if the call site belongs to a start block.
@@ -347,6 +350,11 @@
   if (is_start_block) {
     return false; // treat the call reached as part of start block
   }
+
+  // Re-sample the profile.count() before giving up
+  if (profile.count() > 0) {
+    return false;
+  }
   return true; // give up and treat the call site as not reached
 }