From c00c939f99c7dfd31733cb27d36cb92fcc52a75b Mon Sep 17 00:00:00 2001
From: Albert Mingkun Yang <ayang@openjdk.org>
Date: Tue, 5 Mar 2024 14:54:55 +0000
Subject: [PATCH] 8327364: Parallel: Remove unused ParallelCompactData::add_obj

Reviewed-by: kbarrett
---
 .../share/gc/parallel/psParallelCompact.cpp   | 29 -------------------
 .../share/gc/parallel/psParallelCompact.hpp   |  3 --
 2 files changed, 32 deletions(-)

diff --git a/src/hotspot/share/gc/parallel/psParallelCompact.cpp b/src/hotspot/share/gc/parallel/psParallelCompact.cpp
index 886a5d308c1..c4a191e2861 100644
--- a/src/hotspot/share/gc/parallel/psParallelCompact.cpp
+++ b/src/hotspot/share/gc/parallel/psParallelCompact.cpp
@@ -527,35 +527,6 @@ HeapWord* ParallelCompactData::partial_obj_end(size_t region_idx) const
   return result;
 }
 
-void ParallelCompactData::add_obj(HeapWord* addr, size_t len)
-{
-  const size_t obj_ofs = pointer_delta(addr, _heap_start);
-  const size_t beg_region = obj_ofs >> Log2RegionSize;
-  // end_region is inclusive
-  const size_t end_region = (obj_ofs + len - 1) >> Log2RegionSize;
-
-  if (beg_region == end_region) {
-    // All in one region.
-    _region_data[beg_region].add_live_obj(len);
-    return;
-  }
-
-  // First region.
-  const size_t beg_ofs = region_offset(addr);
-  _region_data[beg_region].add_live_obj(RegionSize - beg_ofs);
-
-  // Middle regions--completely spanned by this object.
-  for (size_t region = beg_region + 1; region < end_region; ++region) {
-    _region_data[region].set_partial_obj_size(RegionSize);
-    _region_data[region].set_partial_obj_addr(addr);
-  }
-
-  // Last region.
-  const size_t end_ofs = region_offset(addr + len - 1);
-  _region_data[end_region].set_partial_obj_size(end_ofs + 1);
-  _region_data[end_region].set_partial_obj_addr(addr);
-}
-
 void
 ParallelCompactData::summarize_dense_prefix(HeapWord* beg, HeapWord* end)
 {
diff --git a/src/hotspot/share/gc/parallel/psParallelCompact.hpp b/src/hotspot/share/gc/parallel/psParallelCompact.hpp
index 6a158e1385e..f5521b6014e 100644
--- a/src/hotspot/share/gc/parallel/psParallelCompact.hpp
+++ b/src/hotspot/share/gc/parallel/psParallelCompact.hpp
@@ -407,9 +407,6 @@ public:
   inline BlockData* block(size_t block_idx) const;
   inline size_t     block(const BlockData* block_ptr) const;
 
-  void add_obj(HeapWord* addr, size_t len);
-  void add_obj(oop p, size_t len) { add_obj(cast_from_oop<HeapWord*>(p), len); }
-
   // Fill in the regions covering [beg, end) so that no data moves; i.e., the
   // destination of region n is simply the start of region n.  Both arguments
   // beg and end must be region-aligned.