75 
  76   // When collecting the permanent generation Method*s may be moving,
  77   // so we either have to flush all bcp data or convert it into bci.
  78   CodeCache::gc_prologue();
  79 
  80   // Increment the invocation count
  81   _total_invocations++;
  82 
  83   // Capture used regions for each generation that will be
  84   // subject to collection, so that card table adjustments can
  85   // be made intelligently (see clear / invalidate further below).
  86   gch->save_used_regions();
  87 
  88   allocate_stacks();
  89 
  90   mark_sweep_phase1(clear_all_softrefs);
  91 
  92   mark_sweep_phase2();
  93 
  94   // Don't add any more derived pointers during phase3
  95 #if defined(COMPILER2) || INCLUDE_JVMCI
  96   assert(DerivedPointerTable::is_active(), "Sanity");
  97   DerivedPointerTable::set_active(false);
  98 #endif
  99 
 100   mark_sweep_phase3();
 101 
 102   mark_sweep_phase4();
 103 
 104   restore_marks();
 105 
 106   // Set saved marks for allocation profiler (and other things? -- dld)
 107   // (Should this be in general part?)
 108   gch->save_marks();
 109 
 110   deallocate_stacks();
 111 
 112   // If compaction completely evacuated the young generation then we
 113   // can clear the card table.  Otherwise, we must invalidate
 114   // it (consider all cards dirty).  In the future, we might consider doing
 115   // compaction within generations only, and doing card-table sliding.

  75 
  76   // When collecting the permanent generation Method*s may be moving,
  77   // so we either have to flush all bcp data or convert it into bci.
  78   CodeCache::gc_prologue();
  79 
  80   // Increment the invocation count
  81   _total_invocations++;
  82 
  83   // Capture used regions for each generation that will be
  84   // subject to collection, so that card table adjustments can
  85   // be made intelligently (see clear / invalidate further below).
  86   gch->save_used_regions();
  87 
  88   allocate_stacks();
  89 
  90   mark_sweep_phase1(clear_all_softrefs);
  91 
  92   mark_sweep_phase2();
  93 
  94   // Don't add any more derived pointers during phase3
  95 #if COMPILER2_OR_JVMCI
  96   assert(DerivedPointerTable::is_active(), "Sanity");
  97   DerivedPointerTable::set_active(false);
  98 #endif
  99 
 100   mark_sweep_phase3();
 101 
 102   mark_sweep_phase4();
 103 
 104   restore_marks();
 105 
 106   // Set saved marks for allocation profiler (and other things? -- dld)
 107   // (Should this be in general part?)
 108   gch->save_marks();
 109 
 110   deallocate_stacks();
 111 
 112   // If compaction completely evacuated the young generation then we
 113   // can clear the card table.  Otherwise, we must invalidate
 114   // it (consider all cards dirty).  In the future, we might consider doing
 115   // compaction within generations only, and doing card-table sliding.