src/hotspot/share/opto/loopTransform.cpp

@@ -3051,17 +3051,11 @@
               (bol->in(1)->Opcode() == Op_CompareAndSwapB) ||
               (bol->in(1)->Opcode() == Op_CompareAndSwapS) ||
               (bol->in(1)->Opcode() == Op_CompareAndSwapI) ||
               (bol->in(1)->Opcode() == Op_CompareAndSwapL) ||
               (bol->in(1)->Opcode() == Op_CompareAndSwapP) ||
-              (bol->in(1)->Opcode() == Op_CompareAndSwapN) ||
-              (bol->in(1)->Opcode() == Op_ShenandoahCompareAndExchangeP) ||
-              (bol->in(1)->Opcode() == Op_ShenandoahCompareAndExchangeN) ||
-              (bol->in(1)->Opcode() == Op_ShenandoahWeakCompareAndSwapP) ||
-              (bol->in(1)->Opcode() == Op_ShenandoahWeakCompareAndSwapN) ||
-              (bol->in(1)->Opcode() == Op_ShenandoahCompareAndSwapP) ||
-              (bol->in(1)->Opcode() == Op_ShenandoahCompareAndSwapN)))
+              (bol->in(1)->Opcode() == Op_CompareAndSwapN)))
            return;               // Allocation loops RARELY take backedge
          // Find the OTHER exit path from the IF
          Node* ex = iff->proj_out(1-test_con);
          float p = iff->_prob;
          if (!phase->is_member(this, ex) && iff->_fcnt == COUNT_UNKNOWN) {