src/hotspot/share/opto/escape.cpp

*** 2723,2733 ****
            ArrayCopyNode* ac = proj_in->in(TypeFunc::Memory)->as_MergeMem()->in(Compile::AliasIdxRaw)->in(0)->as_ArrayCopy();
            if (ac->may_modify(toop, igvn)) {
              break;
            }
          }
!         result = proj_in->in(TypeFunc::Memory);
        }
      } else if (result->is_MergeMem()) {
        MergeMemNode *mmem = result->as_MergeMem();
        result = step_through_mergemem(mmem, alias_idx, toop);
        if (result == mmem->base_memory()) {
--- 2723,2733 ----
            ArrayCopyNode* ac = proj_in->in(TypeFunc::Memory)->as_MergeMem()->in(Compile::AliasIdxRaw)->in(0)->as_ArrayCopy();
            if (ac->may_modify(toop, igvn)) {
              break;
            }
          }
!         result = proj_in->in(TypeFunc::Memory); // FYI: bypasses a membar
        }
      } else if (result->is_MergeMem()) {
        MergeMemNode *mmem = result->as_MergeMem();
        result = step_through_mergemem(mmem, alias_idx, toop);
        if (result == mmem->base_memory()) {
*** 2802,2812 ****
      } else if (C->get_alias_index(t) != alias_idx) {
        // Create a new Phi with the specified alias index type.
        result = split_memory_phi(mphi, alias_idx, orig_phis);
      }
    }
-   // the result is either MemNode, PhiNode, InitializeNode.
    return result;
  }
  
  //
  //  Convert the types of unescaped object to instance types where possible,
--- 2802,2811 ----