src/share/vm/opto/loopTransform.cpp

@@ -2482,18 +2482,24 @@
         Node *bol = iff->in(1);
         if( bol && bol->req() > 1 && bol->in(1) &&
             ((bol->in(1)->Opcode() == Op_StorePConditional ) ||
              (bol->in(1)->Opcode() == Op_StoreIConditional ) ||
              (bol->in(1)->Opcode() == Op_StoreLConditional ) ||
+             (bol->in(1)->Opcode() == Op_CompareAndExchangeB ) ||
+             (bol->in(1)->Opcode() == Op_CompareAndExchangeS ) ||
              (bol->in(1)->Opcode() == Op_CompareAndExchangeI ) ||
              (bol->in(1)->Opcode() == Op_CompareAndExchangeL ) ||
              (bol->in(1)->Opcode() == Op_CompareAndExchangeP ) ||
              (bol->in(1)->Opcode() == Op_CompareAndExchangeN ) ||
+             (bol->in(1)->Opcode() == Op_WeakCompareAndSwapB ) ||
+             (bol->in(1)->Opcode() == Op_WeakCompareAndSwapS ) ||
              (bol->in(1)->Opcode() == Op_WeakCompareAndSwapI ) ||
              (bol->in(1)->Opcode() == Op_WeakCompareAndSwapL ) ||
              (bol->in(1)->Opcode() == Op_WeakCompareAndSwapP ) ||
              (bol->in(1)->Opcode() == Op_WeakCompareAndSwapN ) ||
+             (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 )))
           return;               // Allocation loops RARELY take backedge