8215034: Remove old HOTSWAP conditionals

Reviewed-by: dcubed, jiangli, sspitsyn

src/hotspot/share/code/codeCache.cpp

@@ -1200,7 +1200,6 @@ bool CodeCache::is_far_target(address target) {
 #endif
 }
 
-#ifdef HOTSWAP
 int CodeCache::mark_for_evol_deoptimization(InstanceKlass* dependee) {
   MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
   int number_of_marked_CodeBlobs = 0;
@@ -1234,8 +1233,6 @@ int CodeCache::mark_for_evol_deoptimization(InstanceKlass* dependee) {
 
   return number_of_marked_CodeBlobs;
 }
-#endif // HOTSWAP
-
 
 // Deoptimize all methods
 void CodeCache::mark_all_nmethods_for_deoptimization() {
@@ -1297,8 +1294,8 @@ void CodeCache::flush_dependents_on(InstanceKlass* dependee) {
   }
 }
 
-#ifdef HOTSWAP
-// Flushes compiled methods dependent on dependee in the evolutionary sense
+// Flushes compiled methods dependent on dependee when the dependee is redefined
+// via RedefineClasses
 void CodeCache::flush_evol_dependents_on(InstanceKlass* ev_k) {
   // --- Compile_lock is not held. However we are at a safepoint.
   assert_locked_or_safepoint(Compile_lock);
@@ -1326,8 +1323,6 @@ void CodeCache::flush_evol_dependents_on(InstanceKlass* ev_k) {
     make_marked_nmethods_not_entrant();
   }
 }
-#endif // HOTSWAP
-
 
 // Flushes compiled methods dependent on dependee
 void CodeCache::flush_dependents_on_method(const methodHandle& m_h) {

src/hotspot/share/code/codeCache.hpp

@@ -286,9 +286,7 @@ class CodeCache : AllStatic {
   // Deoptimization
  private:
   static int  mark_for_deoptimization(KlassDepChange& changes);
-#ifdef HOTSWAP
   static int  mark_for_evol_deoptimization(InstanceKlass* dependee);
-#endif // HOTSWAP
 
  public:
   static void mark_all_nmethods_for_deoptimization();
@@ -297,10 +295,8 @@ class CodeCache : AllStatic {
 
   // Flushing and deoptimization
   static void flush_dependents_on(InstanceKlass* dependee);
-#ifdef HOTSWAP
   // Flushing and deoptimization in case of evolution
   static void flush_evol_dependents_on(InstanceKlass* dependee);
-#endif // HOTSWAP
   // Support for fullspeed debugging
   static void flush_dependents_on_method(const methodHandle& dependee);
 

src/hotspot/share/interpreter/templateInterpreter.hpp

@@ -111,9 +111,7 @@ class TemplateInterpreter: public AbstractInterpreter {
   static address    _throw_StackOverflowError_entry;
 
   static address    _remove_activation_entry;                   // continuation address if an exception is not handled by current frame
-#ifdef HOTSWAP
   static address    _remove_activation_preserving_args_entry;   // continuation address when current frame is being popped
-#endif // HOTSWAP
 
 #ifndef PRODUCT
   static EntryPoint _trace_code;
@@ -146,9 +144,7 @@ class TemplateInterpreter: public AbstractInterpreter {
  public:
 
   static address    remove_activation_early_entry(TosState state) { return _earlyret_entry.entry(state); }
-#ifdef HOTSWAP
-  static address    remove_activation_preserving_args_entry()   { return _remove_activation_preserving_args_entry; }
-#endif // HOTSWAP
+  static address    remove_activation_preserving_args_entry()     { return _remove_activation_preserving_args_entry; }
 
   static address    remove_activation_entry()                   { return _remove_activation_entry; }
   static address    throw_exception_entry()                     { return _throw_exception_entry; }

src/hotspot/share/utilities/globalDefinitions.hpp

@@ -422,14 +422,6 @@ const size_t minimumStringTableSize = 128;
 const size_t defaultSymbolTableSize = 32768; // 2^15
 const size_t minimumSymbolTableSize = 1024;
 
-
-//----------------------------------------------------------------------------------------------------
-// HotSwap - for JVMTI   aka Class File Replacement and PopFrame
-//
-// Determines whether on-the-fly class replacement and frame popping are enabled.
-
-#define HOTSWAP
-
 //----------------------------------------------------------------------------------------------------
 // Object alignment, in units of HeapWords.
 //