src/hotspot/share/gc/parallel/psParallelCompact.hpp

rev 57190 : [mq]: shadow-regions.5
rev 57192 : imported patch shadow-regions-final-fixes

*** 628,657 ****
    const region_sz_t old = Atomic::cmpxchg(&_dc_and_los, los, dc_claimed | los);
    return old == los;
  }
  
  inline bool ParallelCompactData::RegionData::mark_normal() {
!   return Atomic::cmpxchg(NormalRegion, &_shadow_state, UnusedRegion, memory_order_relaxed) == UnusedRegion;
  }
  
  inline bool ParallelCompactData::RegionData::mark_shadow() {
    if (_shadow_state != UnusedRegion) return false;
!   return Atomic::cmpxchg(ShadowRegion, &_shadow_state, UnusedRegion, memory_order_relaxed) == UnusedRegion;
  }
  
  inline void ParallelCompactData::RegionData::mark_filled() {
!   int old = Atomic::cmpxchg(FilledShadow, &_shadow_state, ShadowRegion, memory_order_relaxed);
!   assert(old == Shadow, "Fail to mark the region as filled");
  }
  
  inline bool ParallelCompactData::RegionData::mark_copied() {
!   return Atomic::cmpxchg(CopiedShadow, &_shadow_state, FilledShadow, memory_order_relaxed) == FilledShadow;
  }
  
  void ParallelCompactData::RegionData::shadow_to_normal() {
!   int old = Atomic::cmpxchg(NormalRegion, &_shadow_state, ShadowRegion, memory_order_relaxed);
!   assert(old == Shadow, "Fail to mark the region as finish");
  }
  
  inline ParallelCompactData::RegionData*
  ParallelCompactData::region(size_t region_idx) const
  {
--- 628,657 ----
    const region_sz_t old = Atomic::cmpxchg(&_dc_and_los, los, dc_claimed | los);
    return old == los;
  }
  
  inline bool ParallelCompactData::RegionData::mark_normal() {
!   return Atomic::cmpxchg(&_shadow_state, UnusedRegion, NormalRegion, memory_order_relaxed) == UnusedRegion;
  }
  
  inline bool ParallelCompactData::RegionData::mark_shadow() {
    if (_shadow_state != UnusedRegion) return false;
!   return Atomic::cmpxchg(&_shadow_state, UnusedRegion, ShadowRegion, memory_order_relaxed) == UnusedRegion;
  }
  
  inline void ParallelCompactData::RegionData::mark_filled() {
!   int old = Atomic::cmpxchg(&_shadow_state, ShadowRegion, FilledShadow, memory_order_relaxed);
!   assert(old == ShadowRegion, "Fail to mark the region as filled");
  }
  
  inline bool ParallelCompactData::RegionData::mark_copied() {
!   return Atomic::cmpxchg(&_shadow_state, FilledShadow, CopiedShadow, memory_order_relaxed) == FilledShadow;
  }
  
  void ParallelCompactData::RegionData::shadow_to_normal() {
!   int old = Atomic::cmpxchg(&_shadow_state, ShadowRegion, NormalRegion, memory_order_relaxed);
!   assert(old == ShadowRegion, "Fail to mark the region as finish");
  }
  
  inline ParallelCompactData::RegionData*
  ParallelCompactData::region(size_t region_idx) const
  {