8277748: Obsolete the MinInliningThreshold flag in JDK 19

Reviewed-by: kvn, thartmann

Author: eme64

src/hotspot/share/opto/bytecodeInfo.cpp

@@ -319,14 +319,6 @@ bool InlineTree::should_not_inline(ciMethod* callee_method, ciMethod* caller_met
         return true;
       }
     }
-
-    if (MinInliningThreshold > 0) { // Deprecated heuristic
-      intx counter_high_value = TieredCompilation ? InvocationCounter::count_limit / 2 : CompileThreshold / 2;
-      if (!callee_method->was_executed_more_than(MIN2(MinInliningThreshold, counter_high_value))) {
-        set_msg("executed < MinInliningThreshold times");
-        return true;
-      }
-    }
   }
 
   return false;

src/hotspot/share/runtime/arguments.cpp

@@ -530,7 +530,6 @@ static SpecialFlag const special_jvm_flags[] = {
   { "InitialRAMFraction",           JDK_Version::jdk(10),  JDK_Version::undefined(), JDK_Version::undefined() },
   { "AllowRedefinitionToAddDeleteMethods", JDK_Version::jdk(13), JDK_Version::undefined(), JDK_Version::undefined() },
   { "FlightRecorder",               JDK_Version::jdk(13), JDK_Version::undefined(), JDK_Version::undefined() },
-  { "MinInliningThreshold",         JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::jdk(20) },
   { "DumpSharedSpaces",             JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::undefined() },
   { "DynamicDumpSharedSpaces",      JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::undefined() },
   { "RequireSharedSpaces",          JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::undefined() },
@@ -547,6 +546,7 @@ static SpecialFlag const special_jvm_flags[] = {
   // -------------- Obsolete Flags - sorted by expired_in --------------
 
   { "FilterSpuriousWakeups",        JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::jdk(20) },
+  { "MinInliningThreshold",         JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::jdk(20) },
 #ifdef ASSERT
   { "DummyObsoleteTestFlag",        JDK_Version::undefined(), JDK_Version::jdk(18), JDK_Version::undefined() },
 #endif

src/hotspot/share/runtime/globals.hpp

@@ -1346,11 +1346,6 @@ const intx ObjectAlignmentInBytes = 8;
           "(using CompileCommand or marked w/ @ForceInline)")               \
           range(0, max_jint)                                                \
                                                                             \
-  product(intx, MinInliningThreshold, 0,                                    \
-          "(Deprecated) The minimum invocation count a method needs to"     \
-          "have to be inlined")                                             \
-          range(0, max_jint)                                                \
-                                                                            \
   develop(intx, MethodHistogramCutoff, 100,                                 \
           "The cutoff value for method invocation histogram (+CountCalls)") \
                                                                             \