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1 /* |
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2 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 #ifndef SHARE_GC_Z_C1_ZBARRIERSETC1_HPP |
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25 #define SHARE_GC_Z_C1_ZBARRIERSETC1_HPP |
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26 |
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27 #include "c1/c1_CodeStubs.hpp" |
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28 #include "c1/c1_IR.hpp" |
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29 #include "c1/c1_LIR.hpp" |
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30 #include "gc/shared/c1/barrierSetC1.hpp" |
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31 #include "oops/accessDecorators.hpp" |
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32 |
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33 class ZLoadBarrierStubC1 : public CodeStub { |
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34 private: |
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35 DecoratorSet _decorators; |
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36 LIR_Opr _ref_addr; |
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37 LIR_Opr _ref; |
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38 LIR_Opr _tmp; |
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39 CodeEmitInfo* _patch_info; |
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40 address _runtime_stub; |
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41 |
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42 public: |
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43 ZLoadBarrierStubC1(LIRAccess& access, LIR_Opr ref, address runtime_stub); |
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44 |
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45 DecoratorSet decorators() const; |
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46 LIR_Opr ref() const; |
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47 LIR_Opr ref_addr() const; |
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48 LIR_Opr tmp() const; |
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49 LIR_PatchCode patch_code() const; |
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50 CodeEmitInfo*& patch_info(); |
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51 address runtime_stub() const; |
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52 |
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53 virtual void emit_code(LIR_Assembler* ce); |
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54 virtual void visit(LIR_OpVisitState* visitor); |
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55 |
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56 #ifndef PRODUCT |
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57 virtual void print_name(outputStream* out) const; |
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58 #endif // PRODUCT |
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59 }; |
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60 |
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61 class ZBarrierSetC1 : public BarrierSetC1 { |
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62 private: |
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63 address _load_barrier_on_oop_field_preloaded_runtime_stub; |
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64 address _load_barrier_on_weak_oop_field_preloaded_runtime_stub; |
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65 |
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66 address load_barrier_on_oop_field_preloaded_runtime_stub(DecoratorSet decorators) const; |
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67 void load_barrier(LIRAccess& access, LIR_Opr result) const; |
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68 |
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69 protected: |
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70 virtual void load_at_resolved(LIRAccess& access, LIR_Opr result); |
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71 virtual LIR_Opr atomic_xchg_at_resolved(LIRAccess& access, LIRItem& value); |
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72 virtual LIR_Opr atomic_cmpxchg_at_resolved(LIRAccess& access, LIRItem& cmp_value, LIRItem& new_value); |
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73 |
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74 public: |
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75 ZBarrierSetC1(); |
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76 |
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77 virtual void generate_c1_runtime_stubs(BufferBlob* blob); |
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78 }; |
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79 |
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80 #endif // SHARE_GC_Z_C1_ZBARRIERSETC1_HPP |