1 /*
   2  * Copyright (c) 2018, Red Hat, Inc. and/or its affiliates.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 #ifndef CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
  25 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
  26 
  27 #include "asm/macroAssembler.hpp"
  28 #include "gc/shared/barrierSetAssembler.hpp"
  29 #ifdef COMPILER1
  30 #include "c1/c1_LIRAssembler.hpp"
  31 #include "gc/shenandoah/c1/shenandoahBarrierSetC1.hpp"
  32 #endif
  33 
  34 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
  35 private:
  36   void satb_write_barrier_pre(MacroAssembler* masm,
  37                               Register obj,
  38                               Register pre_val,
  39                               Register thread,
  40                               Register tmp,
  41                               bool tosca_live,
  42                               bool expand_call);
  43 
  44   void shenandoah_write_barrier_pre(MacroAssembler* masm,
  45                                     Register obj,
  46                                     Register pre_val,
  47                                     Register thread,
  48                                     Register tmp,
  49                                     bool tosca_live,
  50                                     bool expand_call);
  51   void shenandoah_write_barrier_post(MacroAssembler* masm,
  52                                      Register store_addr,
  53                                      Register new_val,
  54                                      Register thread,
  55                                      Register tmp,
  56                                      Register tmp2);
  57 
  58   void read_barrier(MacroAssembler* masm, Register dst);
  59   void read_barrier_impl(MacroAssembler* masm, Register dst);
  60 
  61   void read_barrier_not_null(MacroAssembler* masm, Register dst);
  62   void read_barrier_not_null_impl(MacroAssembler* masm, Register dst);
  63 
  64   void write_barrier(MacroAssembler* masm, Register dst);
  65   void write_barrier_impl(MacroAssembler* masm, Register dst);
  66 
  67   void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp);
  68   void storeval_barrier_impl(MacroAssembler* masm, Register dst, Register tmp);
  69 
  70 public:
  71 #ifdef COMPILER1
  72   void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
  73   void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
  74 #endif
  75 
  76   virtual void cmpxchg_oop(MacroAssembler* masm, DecoratorSet decorators,
  77                            Register res, Address addr, Register oldval, Register newval,
  78                            bool exchange, bool encode, Register tmp1, Register tmp2);
  79   virtual void xchg_oop(MacroAssembler* masm, DecoratorSet decorators,
  80                         Register obj, Address addr, Register tmp);
  81 
  82   virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  83                                   Register src, Register dst, Register count);
  84   virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  85                                   Register src, Register dst, Register count);
  86   virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  87                        Register dst, Address src, Register tmp1, Register tmp_thread);
  88   virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  89                         Address dst, Register val, Register tmp1, Register tmp2);
  90 
  91   virtual void obj_equals(MacroAssembler* masm, DecoratorSet decorators, Register src1, Register src2);
  92   virtual void obj_equals_addr(MacroAssembler* masm, DecoratorSet decorators, Register src1, Address src2);
  93 
  94   virtual void resolve_for_read(MacroAssembler* masm, DecoratorSet decorators, Register obj);
  95   virtual void resolve_for_write(MacroAssembler* masm, DecoratorSet decorators, Register obj);
  96 
  97 };
  98 
  99 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP