1 /*
  2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.
  8  *
  9  * This code is distributed in the hope that it will be useful, but WITHOUT
 10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 12  * version 2 for more details (a copy is included in the LICENSE file that
 13  * accompanied this code).
 14  *
 15  * You should have received a copy of the GNU General Public License version
 16  * 2 along with this work; if not, write to the Free Software Foundation,
 17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 18  *
 19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 20  * or visit www.oracle.com if you need additional information or have any
 21  * questions.
 22  */
 23 
 24 #ifndef CPU_AARCH64_GC_Z_ZBARRIERSETASSEMBLER_AARCH64_HPP
 25 #define CPU_AARCH64_GC_Z_ZBARRIERSETASSEMBLER_AARCH64_HPP
 26 
 27 #include "code/vmreg.hpp"
 28 #include "oops/accessDecorators.hpp"
 29 #ifdef COMPILER2
 30 #include "opto/optoreg.hpp"
 31 #endif // COMPILER2
 32 
 33 #ifdef COMPILER1
 34 class LIR_Assembler;
 35 class LIR_OprDesc;
 36 typedef LIR_OprDesc* LIR_Opr;
 37 class StubAssembler;
 38 class ZLoadBarrierStubC1;
 39 #endif // COMPILER1
 40 
 41 #ifdef COMPILER2
 42 class Node;
 43 class ZLoadBarrierStubC2;
 44 #endif // COMPILER2
 45 
 46 class ZBarrierSetAssembler : public ZBarrierSetAssemblerBase {
 47 public:
 48   virtual void load_at(MacroAssembler* masm,
 49                        DecoratorSet decorators,
 50                        BasicType type,
 51                        Register dst,
 52                        Address src,
 53                        Register tmp1,
 54                        Register tmp_thread);
 55 
 56 #ifdef ASSERT
 57   virtual void store_at(MacroAssembler* masm,
 58                         DecoratorSet decorators,
 59                         BasicType type,
 60                         Address dst,
 61                         Register val,
 62                         Register tmp1,
 63                         Register tmp2,
 64                         Register tmp3);
 65 #endif // ASSERT
 66 
 67   virtual void arraycopy_prologue(MacroAssembler* masm,
 68                                   DecoratorSet decorators,
 69                                   bool is_oop,
 70                                   Register src,
 71                                   Register dst,
 72                                   Register count,
 73                                   RegSet saved_regs);
 74 
 75   virtual void try_resolve_jobject_in_native(MacroAssembler* masm,
 76                                              Register jni_env,
 77                                              Register robj,
 78                                              Register tmp,
 79                                              Label& slowpath);
 80 
 81 #ifdef COMPILER1
 82   void generate_c1_load_barrier_test(LIR_Assembler* ce,
 83                                      LIR_Opr ref) const;
 84 
 85   void generate_c1_load_barrier_stub(LIR_Assembler* ce,
 86                                      ZLoadBarrierStubC1* stub) const;
 87 
 88   void generate_c1_load_barrier_runtime_stub(StubAssembler* sasm,
 89                                              DecoratorSet decorators) const;
 90 #endif // COMPILER1
 91 
 92 #ifdef COMPILER2
 93   OptoReg::Name refine_register(const Node* node,
 94                                 OptoReg::Name opto_reg);
 95 
 96   void generate_c2_load_barrier_stub(MacroAssembler* masm,
 97                                      ZLoadBarrierStubC2* stub) const;
 98 #endif // COMPILER2
 99 };
100 
101 #endif // CPU_AARCH64_GC_Z_ZBARRIERSETASSEMBLER_AARCH64_HPP