1 /*
 2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
 3  * Copyright (c) 2018, SAP SE. All rights reserved.
 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 5  *
 6  * This code is free software; you can redistribute it and/or modify it
 7  * under the terms of the GNU General Public License version 2 only, as
 8  * published by the Free Software Foundation.
 9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
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24  */
25 
26 #ifndef CPU_PPC_GC_G1_G1BARRIERSETASSEMBLER_PPC_HPP
27 #define CPU_PPC_GC_G1_G1BARRIERSETASSEMBLER_PPC_HPP
28 
29 #include "asm/macroAssembler.hpp"
30 #include "gc/shared/modRefBarrierSetAssembler.hpp"
31 #include "utilities/macros.hpp"
32 
33 class LIR_Assembler;
34 class StubAssembler;
35 class G1PreBarrierStub;
36 class G1PostBarrierStub;
37 
38 class G1BarrierSetAssembler: public ModRefBarrierSetAssembler {
39 protected:
40   virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators, Register from, Register to, Register count,
41                                                Register preserve1, Register preserve2);
42   virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators, Register addr, Register count, Register preserve);
43 
44   void g1_write_barrier_pre(MacroAssembler* masm, DecoratorSet decorators, Register obj, RegisterOrConstant ind_or_offs, Register pre_val,
45                             Register tmp1, Register tmp2, bool needs_frame);
46   void g1_write_barrier_post(MacroAssembler* masm, DecoratorSet decorators, Register store_addr, Register new_val,
47                              Register tmp1, Register tmp2, Register tmp3);
48 
49   virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
50                             Register base, RegisterOrConstant ind_or_offs, Register val,
51                             Register tmp1, Register tmp2, Register tmp3, bool needs_frame);
52 
53 public:
54 #ifdef COMPILER1
55   void gen_g1_pre_barrier_stub(LIR_Assembler* ce, G1PreBarrierStub* stub);
56   void gen_g1_post_barrier_stub(LIR_Assembler* ce, G1PostBarrierStub* stub);
57 
58   void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
59   void generate_c1_post_barrier_runtime_stub(StubAssembler* sasm);
60 #endif
61 
62   virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
63                        Register base, RegisterOrConstant ind_or_offs, Register dst,
64                        Register tmp1, Register tmp2, bool needs_frame, Label *is_null = NULL);
65 
66   virtual void resolve_jobject(MacroAssembler* masm, Register value, Register tmp1, Register tmp2, bool needs_frame);
67 };
68 
69 #endif // CPU_PPC_GC_G1_G1BARRIERSETASSEMBLER_PPC_HPP