1 /*
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 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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13  * version 2 for more details (a copy is included in the LICENSE file that
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25 
26 #ifndef CPU_PPC_C1_LIRASSEMBLER_PPC_HPP
27 #define CPU_PPC_C1_LIRASSEMBLER_PPC_HPP
28 
29 // ArrayCopyStub needs access to bailout
30 friend class ArrayCopyStub;
31 
32  private:
33 
34   //////////////////////////////////////////////////////////////////////////////
35   // PPC64 load/store emission
36   //
37   // The PPC ld/st instructions cannot accommodate displacements > 16 bits long.
38   // The following "pseudo" instructions (load/store) make it easier to
39   // use the indexed addressing mode by allowing 32 bit displacements:
40   //
41 
42   void explicit_null_check(Register addr, CodeEmitInfo* info);
43 
44   int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide);
45   int store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide);
46 
47   int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide);
48   int load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide);
49 
50   int shift_amount(BasicType t);
51 
52   // Record the type of the receiver in ReceiverTypeData.
53   void type_profile_helper(Register mdo, int mdo_offset_bias,
54                            ciMethodData *md, ciProfileData *data,
55                            Register recv, Register tmp);
56   // Setup pointers to MDO, MDO slot, also compute offset bias to access the slot.
57   void setup_md_access(ciMethod* method, int bci,
58                        ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias);
59  public:
60   static const ConditionRegister BOOL_RESULT;
61 
62 enum {
63   _static_call_stub_size = 4 * BytesPerInstWord + MacroAssembler::b64_patchable_size, // or smaller
64   _call_stub_size = _static_call_stub_size + MacroAssembler::trampoline_stub_size, // or smaller
65   _exception_handler_size = MacroAssembler::b64_patchable_size, // or smaller
66   _deopt_handler_size = MacroAssembler::bl64_patchable_size + BytesPerInstWord
67 };
68 
69   // '_static_call_stub_size' is only used on ppc (see LIR_Assembler::emit_static_call_stub()
70   // in c1_LIRAssembler_ppc.cpp. The other, shared getters are defined in c1_LIRAssembler.hpp
71   static int static_call_stub_size() {
72     return _static_call_stub_size;
73   }
74 
75 #endif // CPU_PPC_C1_LIRASSEMBLER_PPC_HPP