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comparison src/cpu/sparc/vm/methodHandles_sparc.cpp @ 1926:a1e319b5b13a

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Merge
author trims
date Thu, 11 Nov 2010 23:29:32 -0800
parents e62345fd6a46
children f95d63e2154a
comparison
equal deleted inserted replaced
1895:d4681dc64964 1926:a1e319b5b13a
68 } 68 }
69 69
70 70
71 // Code generation 71 // Code generation
72 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { 72 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) {
73 // I5_savedSP: sender SP (must preserve) 73 // I5_savedSP/O5_savedSP: sender SP (must preserve)
74 // G4 (Gargs): incoming argument list (must preserve) 74 // G4 (Gargs): incoming argument list (must preserve)
75 // G5_method: invoke methodOop; becomes method type. 75 // G5_method: invoke methodOop
76 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots]) 76 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots])
77 // O0, O1: garbage temps, blown away 77 // O0, O1, O2, O3, O4: garbage temps, blown away
78 Register O0_argslot = O0; 78 Register O0_mtype = O0;
79 Register O1_scratch = O1; 79 Register O1_scratch = O1;
80 Register O2_scratch = O2;
81 Register O3_scratch = O3;
82 Register O4_argslot = O4;
83 Register O4_argbase = O4;
80 84
81 // emit WrongMethodType path first, to enable back-branch from main path 85 // emit WrongMethodType path first, to enable back-branch from main path
82 Label wrong_method_type; 86 Label wrong_method_type;
83 __ bind(wrong_method_type); 87 __ bind(wrong_method_type);
88 Label invoke_generic_slow_path;
89 assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");;
90 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch);
91 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeExact);
92 __ brx(Assembler::notEqual, false, Assembler::pt, invoke_generic_slow_path);
93 __ delayed()->nop();
94 __ mov(O0_mtype, G5_method_type); // required by throw_WrongMethodType
95 // mov(G3_method_handle, G3_method_handle); // already in this register
84 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); 96 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch);
85 __ delayed()->nop(); 97 __ delayed()->nop();
86 98
87 // here's where control starts out: 99 // here's where control starts out:
88 __ align(CodeEntryAlignment); 100 __ align(CodeEntryAlignment);
89 address entry_point = __ pc(); 101 address entry_point = __ pc();
90 102
91 // fetch the MethodType from the method handle into G5_method_type 103 // fetch the MethodType from the method handle
92 { 104 {
93 Register tem = G5_method; 105 Register tem = G5_method;
94 assert(tem == G5_method_type, "yes, it's the same register");
95 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { 106 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) {
96 __ ld_ptr(Address(tem, *pchase), G5_method_type); 107 __ ld_ptr(Address(tem, *pchase), O0_mtype);
108 tem = O0_mtype; // in case there is another indirection
97 } 109 }
98 } 110 }
99 111
100 // given the MethodType, find out where the MH argument is buried 112 // given the MethodType, find out where the MH argument is buried
101 __ load_heap_oop(Address(G5_method_type, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O0_argslot); 113 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O4_argslot);
102 __ ldsw( Address(O0_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O0_argslot); 114 __ ldsw( Address(O4_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O4_argslot);
103 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); 115 __ add(Gargs, __ argument_offset(O4_argslot, 1), O4_argbase);
104 116 // Note: argument_address uses its input as a scratch register!
105 __ check_method_handle_type(G5_method_type, G3_method_handle, O1_scratch, wrong_method_type); 117 __ ld_ptr(Address(O4_argbase, -Interpreter::stackElementSize), G3_method_handle);
118
119 trace_method_handle(_masm, "invokeExact");
120
121 __ check_method_handle_type(O0_mtype, G3_method_handle, O1_scratch, wrong_method_type);
106 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); 122 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
123
124 // for invokeGeneric (only), apply argument and result conversions on the fly
125 __ bind(invoke_generic_slow_path);
126 #ifdef ASSERT
127 { Label L;
128 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch);
129 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeGeneric);
130 __ brx(Assembler::equal, false, Assembler::pt, L);
131 __ delayed()->nop();
132 __ stop("bad methodOop::intrinsic_id");
133 __ bind(L);
134 }
135 #endif //ASSERT
136
137 // make room on the stack for another pointer:
138 insert_arg_slots(_masm, 2 * stack_move_unit(), _INSERT_REF_MASK, O4_argbase, O1_scratch, O2_scratch, O3_scratch);
139 // load up an adapter from the calling type (Java weaves this)
140 Register O2_form = O2_scratch;
141 Register O3_adapter = O3_scratch;
142 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O2_form);
143 // load_heap_oop(Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter);
144 // deal with old JDK versions:
145 __ add( Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter);
146 __ cmp(O3_adapter, O2_form);
147 Label sorry_no_invoke_generic;
148 __ brx(Assembler::lessUnsigned, false, Assembler::pn, sorry_no_invoke_generic);
149 __ delayed()->nop();
150
151 __ load_heap_oop(Address(O3_adapter, 0), O3_adapter);
152 __ tst(O3_adapter);
153 __ brx(Assembler::zero, false, Assembler::pn, sorry_no_invoke_generic);
154 __ delayed()->nop();
155 __ st_ptr(O3_adapter, Address(O4_argbase, 1 * Interpreter::stackElementSize));
156 // As a trusted first argument, pass the type being called, so the adapter knows
157 // the actual types of the arguments and return values.
158 // (Generic invokers are shared among form-families of method-type.)
159 __ st_ptr(O0_mtype, Address(O4_argbase, 0 * Interpreter::stackElementSize));
160 // FIXME: assert that O3_adapter is of the right method-type.
161 __ mov(O3_adapter, G3_method_handle);
162 trace_method_handle(_masm, "invokeGeneric");
163 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
164
165 __ bind(sorry_no_invoke_generic); // no invokeGeneric implementation available!
166 __ mov(O0_mtype, G5_method_type); // required by throw_WrongMethodType
167 // mov(G3_method_handle, G3_method_handle); // already in this register
168 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch);
169 __ delayed()->nop();
107 170
108 return entry_point; 171 return entry_point;
109 } 172 }
110 173
111 174
628 Address value; 691 Address value;
629 bool value_left_justified = false; 692 bool value_left_justified = false;
630 693
631 switch (ek) { 694 switch (ek) {
632 case _adapter_opt_i2i: 695 case _adapter_opt_i2i:
696 value = vmarg;
697 break;
633 case _adapter_opt_l2i: 698 case _adapter_opt_l2i:
634 __ unimplemented(entry_name(ek)); 699 {
635 value = vmarg; 700 // just delete the extra slot
701 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot);
702 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch);
703 value = vmarg = Address(O0_argslot, 0);
704 }
636 break; 705 break;
637 case _adapter_opt_unboxi: 706 case _adapter_opt_unboxi:
638 { 707 {
639 // Load the value up from the heap. 708 // Load the value up from the heap.
640 __ ld_ptr(vmarg, O1_scratch); 709 __ ld_ptr(vmarg, O1_scratch);