Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/methodHandles_sparc.cpp @ 2230:55cc33cf55bc
7018257: jmm_DumpThreads allocates into permgen
Summary: Don't allocate in permgen
Reviewed-by: ysr, sla
author | stefank |
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date | Fri, 11 Feb 2011 14:15:16 +0100 |
parents | d810e9a3fc33 |
children | 28bf941f445e |
rev | line source |
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710 | 1 /* |
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2 * Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved. |
710 | 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 * | |
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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. |
710 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "memory/allocation.inline.hpp" | |
28 #include "prims/methodHandles.hpp" | |
710 | 29 |
30 #define __ _masm-> | |
31 | |
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32 #ifdef PRODUCT |
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33 #define BLOCK_COMMENT(str) /* nothing */ |
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34 #else |
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35 #define BLOCK_COMMENT(str) __ block_comment(str) |
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36 #endif |
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37 |
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38 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
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39 |
710 | 40 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
41 address interpreted_entry) { | |
1503 | 42 // Just before the actual machine code entry point, allocate space |
43 // for a MethodHandleEntry::Data record, so that we can manage everything | |
44 // from one base pointer. | |
710 | 45 __ align(wordSize); |
46 address target = __ pc() + sizeof(Data); | |
47 while (__ pc() < target) { | |
48 __ nop(); | |
49 __ align(wordSize); | |
50 } | |
51 | |
52 MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); | |
53 me->set_end_address(__ pc()); // set a temporary end_address | |
54 me->set_from_interpreted_entry(interpreted_entry); | |
55 me->set_type_checking_entry(NULL); | |
56 | |
57 return (address) me; | |
58 } | |
59 | |
60 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, | |
61 address start_addr) { | |
62 MethodHandleEntry* me = (MethodHandleEntry*) start_addr; | |
63 assert(me->end_address() == start_addr, "valid ME"); | |
64 | |
65 // Fill in the real end_address: | |
66 __ align(wordSize); | |
67 me->set_end_address(__ pc()); | |
68 | |
69 return me; | |
70 } | |
71 | |
72 | |
73 // Code generation | |
74 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { | |
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75 // I5_savedSP/O5_savedSP: sender SP (must preserve) |
1503 | 76 // G4 (Gargs): incoming argument list (must preserve) |
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77 // G5_method: invoke methodOop |
1503 | 78 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots]) |
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79 // O0, O1, O2, O3, O4: garbage temps, blown away |
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80 Register O0_mtype = O0; |
1503 | 81 Register O1_scratch = O1; |
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82 Register O2_scratch = O2; |
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83 Register O3_scratch = O3; |
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84 Register O4_argslot = O4; |
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85 Register O4_argbase = O4; |
1503 | 86 |
87 // emit WrongMethodType path first, to enable back-branch from main path | |
88 Label wrong_method_type; | |
89 __ bind(wrong_method_type); | |
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90 Label invoke_generic_slow_path; |
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91 assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");; |
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92 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
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93 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeExact); |
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94 __ brx(Assembler::notEqual, false, Assembler::pt, invoke_generic_slow_path); |
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95 __ delayed()->nop(); |
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96 __ mov(O0_mtype, G5_method_type); // required by throw_WrongMethodType |
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97 // mov(G3_method_handle, G3_method_handle); // already in this register |
1503 | 98 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); |
99 __ delayed()->nop(); | |
100 | |
101 // here's where control starts out: | |
102 __ align(CodeEntryAlignment); | |
103 address entry_point = __ pc(); | |
104 | |
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105 // fetch the MethodType from the method handle |
1503 | 106 { |
107 Register tem = G5_method; | |
108 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { | |
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109 __ ld_ptr(Address(tem, *pchase), O0_mtype); |
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110 tem = O0_mtype; // in case there is another indirection |
1503 | 111 } |
112 } | |
113 | |
114 // given the MethodType, find out where the MH argument is buried | |
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115 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O4_argslot); |
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116 __ ldsw( Address(O4_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O4_argslot); |
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117 __ add(Gargs, __ argument_offset(O4_argslot, 1), O4_argbase); |
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118 // Note: argument_address uses its input as a scratch register! |
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119 __ ld_ptr(Address(O4_argbase, -Interpreter::stackElementSize), G3_method_handle); |
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120 |
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121 trace_method_handle(_masm, "invokeExact"); |
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122 |
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123 __ check_method_handle_type(O0_mtype, G3_method_handle, O1_scratch, wrong_method_type); |
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124 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
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125 |
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126 // for invokeGeneric (only), apply argument and result conversions on the fly |
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127 __ bind(invoke_generic_slow_path); |
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128 #ifdef ASSERT |
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129 { Label L; |
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130 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
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131 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeGeneric); |
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132 __ brx(Assembler::equal, false, Assembler::pt, L); |
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133 __ delayed()->nop(); |
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134 __ stop("bad methodOop::intrinsic_id"); |
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135 __ bind(L); |
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136 } |
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137 #endif //ASSERT |
1503 | 138 |
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139 // make room on the stack for another pointer: |
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140 insert_arg_slots(_masm, 2 * stack_move_unit(), _INSERT_REF_MASK, O4_argbase, O1_scratch, O2_scratch, O3_scratch); |
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141 // load up an adapter from the calling type (Java weaves this) |
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142 Register O2_form = O2_scratch; |
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143 Register O3_adapter = O3_scratch; |
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144 __ load_heap_oop(Address(O0_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O2_form); |
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145 // load_heap_oop(Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
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146 // deal with old JDK versions: |
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147 __ add( Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
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148 __ cmp(O3_adapter, O2_form); |
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149 Label sorry_no_invoke_generic; |
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150 __ brx(Assembler::lessUnsigned, false, Assembler::pn, sorry_no_invoke_generic); |
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151 __ delayed()->nop(); |
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152 |
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153 __ load_heap_oop(Address(O3_adapter, 0), O3_adapter); |
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154 __ tst(O3_adapter); |
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155 __ brx(Assembler::zero, false, Assembler::pn, sorry_no_invoke_generic); |
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156 __ delayed()->nop(); |
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157 __ st_ptr(O3_adapter, Address(O4_argbase, 1 * Interpreter::stackElementSize)); |
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158 // As a trusted first argument, pass the type being called, so the adapter knows |
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159 // the actual types of the arguments and return values. |
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160 // (Generic invokers are shared among form-families of method-type.) |
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161 __ st_ptr(O0_mtype, Address(O4_argbase, 0 * Interpreter::stackElementSize)); |
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162 // FIXME: assert that O3_adapter is of the right method-type. |
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163 __ mov(O3_adapter, G3_method_handle); |
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164 trace_method_handle(_masm, "invokeGeneric"); |
1503 | 165 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
166 | |
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167 __ bind(sorry_no_invoke_generic); // no invokeGeneric implementation available! |
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168 __ mov(O0_mtype, G5_method_type); // required by throw_WrongMethodType |
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169 // mov(G3_method_handle, G3_method_handle); // already in this register |
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170 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); |
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171 __ delayed()->nop(); |
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172 |
1503 | 173 return entry_point; |
710 | 174 } |
175 | |
1503 | 176 |
177 #ifdef ASSERT | |
178 static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) { | |
179 // Verify that argslot lies within (Gargs, FP]. | |
180 Label L_ok, L_bad; | |
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181 BLOCK_COMMENT("{ verify_argslot"); |
1503 | 182 #ifdef _LP64 |
183 __ add(FP, STACK_BIAS, temp_reg); | |
184 __ cmp(argslot_reg, temp_reg); | |
185 #else | |
186 __ cmp(argslot_reg, FP); | |
187 #endif | |
188 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); | |
189 __ delayed()->nop(); | |
190 __ cmp(Gargs, argslot_reg); | |
191 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
192 __ delayed()->nop(); | |
193 __ bind(L_bad); | |
194 __ stop(error_message); | |
195 __ bind(L_ok); | |
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196 BLOCK_COMMENT("} verify_argslot"); |
1503 | 197 } |
198 #endif | |
199 | |
200 | |
201 // Helper to insert argument slots into the stack. | |
202 // arg_slots must be a multiple of stack_move_unit() and <= 0 | |
203 void MethodHandles::insert_arg_slots(MacroAssembler* _masm, | |
204 RegisterOrConstant arg_slots, | |
205 int arg_mask, | |
206 Register argslot_reg, | |
207 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
208 assert(temp3_reg != noreg, "temp3 required"); | |
209 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
210 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
211 | |
212 #ifdef ASSERT | |
213 verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame"); | |
214 if (arg_slots.is_register()) { | |
215 Label L_ok, L_bad; | |
216 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
217 __ br(Assembler::greater, false, Assembler::pn, L_bad); | |
218 __ delayed()->nop(); | |
219 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
220 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
221 __ delayed()->nop(); | |
222 __ bind(L_bad); | |
223 __ stop("assert arg_slots <= 0 and clear low bits"); | |
224 __ bind(L_ok); | |
225 } else { | |
226 assert(arg_slots.as_constant() <= 0, ""); | |
227 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
228 } | |
229 #endif // ASSERT | |
230 | |
231 #ifdef _LP64 | |
232 if (arg_slots.is_register()) { | |
233 // Was arg_slots register loaded as signed int? | |
234 Label L_ok; | |
235 __ sll(arg_slots.as_register(), BitsPerInt, temp_reg); | |
236 __ sra(temp_reg, BitsPerInt, temp_reg); | |
237 __ cmp(arg_slots.as_register(), temp_reg); | |
238 __ br(Assembler::equal, false, Assembler::pt, L_ok); | |
239 __ delayed()->nop(); | |
240 __ stop("arg_slots register not loaded as signed int"); | |
241 __ bind(L_ok); | |
242 } | |
243 #endif | |
244 | |
245 // Make space on the stack for the inserted argument(s). | |
246 // Then pull down everything shallower than argslot_reg. | |
247 // The stacked return address gets pulled down with everything else. | |
248 // That is, copy [sp, argslot) downward by -size words. In pseudo-code: | |
249 // sp -= size; | |
250 // for (temp = sp + size; temp < argslot; temp++) | |
251 // temp[-size] = temp[0] | |
252 // argslot -= size; | |
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253 BLOCK_COMMENT("insert_arg_slots {"); |
1503 | 254 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); |
255 | |
256 // Keep the stack pointer 2*wordSize aligned. | |
257 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
258 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
259 __ add(SP, masked_offset, SP); | |
260 | |
261 __ mov(Gargs, temp_reg); // source pointer for copy | |
262 __ add(Gargs, offset, Gargs); | |
263 | |
264 { | |
265 Label loop; | |
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266 __ BIND(loop); |
1503 | 267 // pull one word down each time through the loop |
268 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
269 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
270 __ add(temp_reg, wordSize, temp_reg); | |
271 __ cmp(temp_reg, argslot_reg); | |
272 __ brx(Assembler::less, false, Assembler::pt, loop); | |
273 __ delayed()->nop(); // FILLME | |
274 } | |
275 | |
276 // Now move the argslot down, to point to the opened-up space. | |
277 __ add(argslot_reg, offset, argslot_reg); | |
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278 BLOCK_COMMENT("} insert_arg_slots"); |
1503 | 279 } |
280 | |
281 | |
282 // Helper to remove argument slots from the stack. | |
283 // arg_slots must be a multiple of stack_move_unit() and >= 0 | |
284 void MethodHandles::remove_arg_slots(MacroAssembler* _masm, | |
285 RegisterOrConstant arg_slots, | |
286 Register argslot_reg, | |
287 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
288 assert(temp3_reg != noreg, "temp3 required"); | |
289 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
290 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
291 | |
292 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); | |
293 | |
294 #ifdef ASSERT | |
295 // Verify that [argslot..argslot+size) lies within (Gargs, FP). | |
296 __ add(argslot_reg, offset, temp2_reg); | |
297 verify_argslot(_masm, temp2_reg, temp_reg, "deleted argument(s) must fall within current frame"); | |
298 if (arg_slots.is_register()) { | |
299 Label L_ok, L_bad; | |
300 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
301 __ br(Assembler::less, false, Assembler::pn, L_bad); | |
302 __ delayed()->nop(); | |
303 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
304 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
305 __ delayed()->nop(); | |
306 __ bind(L_bad); | |
307 __ stop("assert arg_slots >= 0 and clear low bits"); | |
308 __ bind(L_ok); | |
309 } else { | |
310 assert(arg_slots.as_constant() >= 0, ""); | |
311 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
312 } | |
313 #endif // ASSERT | |
314 | |
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315 BLOCK_COMMENT("remove_arg_slots {"); |
1503 | 316 // Pull up everything shallower than argslot. |
317 // Then remove the excess space on the stack. | |
318 // The stacked return address gets pulled up with everything else. | |
319 // That is, copy [sp, argslot) upward by size words. In pseudo-code: | |
320 // for (temp = argslot-1; temp >= sp; --temp) | |
321 // temp[size] = temp[0] | |
322 // argslot += size; | |
323 // sp += size; | |
324 __ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy | |
325 { | |
326 Label loop; | |
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327 __ BIND(loop); |
1503 | 328 // pull one word up each time through the loop |
329 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
330 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
331 __ sub(temp_reg, wordSize, temp_reg); | |
332 __ cmp(temp_reg, Gargs); | |
333 __ brx(Assembler::greaterEqual, false, Assembler::pt, loop); | |
334 __ delayed()->nop(); // FILLME | |
335 } | |
336 | |
337 // Now move the argslot up, to point to the just-copied block. | |
338 __ add(Gargs, offset, Gargs); | |
339 // And adjust the argslot address to point at the deletion point. | |
340 __ add(argslot_reg, offset, argslot_reg); | |
341 | |
342 // Keep the stack pointer 2*wordSize aligned. | |
343 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
344 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
345 __ add(SP, masked_offset, SP); | |
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346 BLOCK_COMMENT("} remove_arg_slots"); |
1503 | 347 } |
348 | |
349 | |
350 #ifndef PRODUCT | |
351 extern "C" void print_method_handle(oop mh); | |
352 void trace_method_handle_stub(const char* adaptername, | |
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353 oopDesc* mh) { |
1503 | 354 printf("MH %s mh="INTPTR_FORMAT"\n", adaptername, (intptr_t) mh); |
355 print_method_handle(mh); | |
356 } | |
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357 void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
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358 if (!TraceMethodHandles) return; |
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359 BLOCK_COMMENT("trace_method_handle {"); |
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360 // save: Gargs, O5_savedSP |
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361 __ save_frame(16); |
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362 __ set((intptr_t) adaptername, O0); |
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363 __ mov(G3_method_handle, O1); |
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364 __ mov(G3_method_handle, L3); |
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365 __ mov(Gargs, L4); |
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366 __ mov(G5_method_type, L5); |
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367 __ call_VM_leaf(L7, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); |
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368 |
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369 __ mov(L3, G3_method_handle); |
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370 __ mov(L4, Gargs); |
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371 __ mov(L5, G5_method_type); |
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372 __ restore(); |
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373 BLOCK_COMMENT("} trace_method_handle"); |
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374 } |
1503 | 375 #endif // PRODUCT |
376 | |
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377 // which conversion op types are implemented here? |
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378 int MethodHandles::adapter_conversion_ops_supported_mask() { |
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379 return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY) |
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380 |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) |
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381 |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST) |
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382 |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
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383 |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM) |
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384 |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS) |
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385 |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS) |
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386 |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS) |
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387 |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS) |
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388 //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! |
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389 ); |
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390 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. |
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391 } |
1503 | 392 |
393 //------------------------------------------------------------------------------ | |
394 // MethodHandles::generate_method_handle_stub | |
395 // | |
710 | 396 // Generate an "entry" field for a method handle. |
397 // This determines how the method handle will respond to calls. | |
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398 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
1503 | 399 // Here is the register state during an interpreted call, |
400 // as set up by generate_method_handle_interpreter_entry(): | |
401 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
402 // - G3: receiver method handle | |
403 // - O5_savedSP: sender SP (must preserve) | |
404 | |
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405 const Register O0_argslot = O0; |
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406 const Register O1_scratch = O1; |
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407 const Register O2_scratch = O2; |
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408 const Register O3_scratch = O3; |
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409 const Register G5_index = G5; |
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410 |
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411 // Argument registers for _raise_exception. |
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412 const Register O0_code = O0; |
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413 const Register O1_actual = O1; |
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414 const Register O2_required = O2; |
1503 | 415 |
416 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); | |
417 | |
418 // Some handy addresses: | |
419 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
420 | |
421 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes()); | |
422 | |
423 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes()); | |
424 | |
425 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes()); | |
426 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes()); | |
427 | |
428 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes()); | |
429 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes()); | |
430 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes()); | |
431 | |
432 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
433 | |
434 if (have_entry(ek)) { | |
435 __ nop(); // empty stubs make SG sick | |
436 return; | |
437 } | |
438 | |
439 address interp_entry = __ pc(); | |
440 | |
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441 trace_method_handle(_masm, entry_name(ek)); |
1503 | 442 |
443 switch ((int) ek) { | |
444 case _raise_exception: | |
445 { | |
446 // Not a real MH entry, but rather shared code for raising an | |
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447 // exception. Since we use a C2I adapter to set up the |
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448 // interpreter state, arguments are expected in compiler |
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449 // argument registers. |
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450 assert(raise_exception_method(), "must be set"); |
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451 address c2i_entry = raise_exception_method()->get_c2i_entry(); |
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452 assert(c2i_entry, "method must be linked"); |
1503 | 453 |
454 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
455 | |
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456 Label L_no_method; |
1503 | 457 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method |
458 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); | |
459 __ ld_ptr(Address(G5_method, 0), G5_method); | |
460 __ tst(G5_method); | |
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461 __ brx(Assembler::zero, false, Assembler::pn, L_no_method); |
1503 | 462 __ delayed()->nop(); |
463 | |
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464 const int jobject_oop_offset = 0; |
1503 | 465 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); |
466 __ tst(G5_method); | |
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467 __ brx(Assembler::zero, false, Assembler::pn, L_no_method); |
1503 | 468 __ delayed()->nop(); |
469 | |
470 __ verify_oop(G5_method); | |
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471 __ jump_to(AddressLiteral(c2i_entry), O3_scratch); |
1503 | 472 __ delayed()->nop(); |
473 | |
474 // If we get here, the Java runtime did not do its job of creating the exception. | |
475 // Do something that is at least causes a valid throw from the interpreter. | |
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476 __ bind(L_no_method); |
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477 __ unimplemented("call throw_WrongMethodType_entry"); |
1503 | 478 } |
479 break; | |
480 | |
481 case _invokestatic_mh: | |
482 case _invokespecial_mh: | |
483 { | |
1846 | 484 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 485 __ verify_oop(G5_method); |
486 // Same as TemplateTable::invokestatic or invokespecial, | |
487 // minus the CP setup and profiling: | |
488 if (ek == _invokespecial_mh) { | |
489 // Must load & check the first argument before entering the target method. | |
490 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
491 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); | |
492 __ null_check(G3_method_handle); | |
493 __ verify_oop(G3_method_handle); | |
494 } | |
495 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
496 __ delayed()->nop(); | |
497 } | |
498 break; | |
499 | |
500 case _invokevirtual_mh: | |
501 { | |
502 // Same as TemplateTable::invokevirtual, | |
503 // minus the CP setup and profiling: | |
504 | |
505 // Pick out the vtable index and receiver offset from the MH, | |
506 // and then we can discard it: | |
507 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
508 __ ldsw(G3_dmh_vmindex, G5_index); | |
509 // Note: The verifier allows us to ignore G3_mh_vmtarget. | |
510 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
511 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
512 | |
513 // Get receiver klass: | |
514 Register O0_klass = O0_argslot; | |
515 __ load_klass(G3_method_handle, O0_klass); | |
516 __ verify_oop(O0_klass); | |
517 | |
518 // Get target methodOop & entry point: | |
519 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
520 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
521 | |
522 __ sll_ptr(G5_index, LogBytesPerWord, G5_index); | |
523 __ add(O0_klass, G5_index, O0_klass); | |
524 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); | |
525 __ ld_ptr(vtable_entry_addr, G5_method); | |
526 | |
527 __ verify_oop(G5_method); | |
528 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
529 __ delayed()->nop(); | |
530 } | |
531 break; | |
532 | |
533 case _invokeinterface_mh: | |
534 { | |
535 // Same as TemplateTable::invokeinterface, | |
536 // minus the CP setup and profiling: | |
537 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
538 Register O1_intf = O1_scratch; | |
1846 | 539 __ load_heap_oop(G3_mh_vmtarget, O1_intf); |
1503 | 540 __ ldsw(G3_dmh_vmindex, G5_index); |
541 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
542 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
543 | |
544 // Get receiver klass: | |
545 Register O0_klass = O0_argslot; | |
546 __ load_klass(G3_method_handle, O0_klass); | |
547 __ verify_oop(O0_klass); | |
548 | |
549 // Get interface: | |
550 Label no_such_interface; | |
551 __ verify_oop(O1_intf); | |
552 __ lookup_interface_method(O0_klass, O1_intf, | |
553 // Note: next two args must be the same: | |
554 G5_index, G5_method, | |
555 O2_scratch, | |
556 O3_scratch, | |
557 no_such_interface); | |
558 | |
559 __ verify_oop(G5_method); | |
560 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
561 __ delayed()->nop(); | |
562 | |
563 __ bind(no_such_interface); | |
564 // Throw an exception. | |
565 // For historical reasons, it will be IncompatibleClassChangeError. | |
566 __ unimplemented("not tested yet"); | |
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567 __ ld_ptr(Address(O1_intf, java_mirror_offset), O2_required); // required interface |
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568 __ mov( O0_klass, O1_actual); // bad receiver |
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569 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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570 __ delayed()->mov(Bytecodes::_invokeinterface, O0_code); // who is complaining? |
1503 | 571 } |
572 break; | |
573 | |
574 case _bound_ref_mh: | |
575 case _bound_int_mh: | |
576 case _bound_long_mh: | |
577 case _bound_ref_direct_mh: | |
578 case _bound_int_direct_mh: | |
579 case _bound_long_direct_mh: | |
580 { | |
581 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
582 BasicType arg_type = T_ILLEGAL; | |
583 int arg_mask = _INSERT_NO_MASK; | |
584 int arg_slots = -1; | |
585 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); | |
586 | |
587 // Make room for the new argument: | |
588 __ ldsw(G3_bmh_vmargslot, O0_argslot); | |
589 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
590 | |
591 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
592 | |
593 // Store bound argument into the new stack slot: | |
1846 | 594 __ load_heap_oop(G3_bmh_argument, O1_scratch); |
1503 | 595 if (arg_type == T_OBJECT) { |
596 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
597 } else { | |
598 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
599 __ load_sized_value(prim_value_addr, O2_scratch, type2aelembytes(arg_type), is_signed_subword_type(arg_type)); | |
600 if (arg_slots == 2) { | |
601 __ unimplemented("not yet tested"); | |
602 #ifndef _LP64 | |
603 __ signx(O2_scratch, O3_scratch); // Sign extend | |
604 #endif | |
605 __ st_long(O2_scratch, Address(O0_argslot, 0)); // Uses O2/O3 on !_LP64 | |
606 } else { | |
607 __ st_ptr( O2_scratch, Address(O0_argslot, 0)); | |
608 } | |
609 } | |
610 | |
611 if (direct_to_method) { | |
1846 | 612 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 613 __ verify_oop(G5_method); |
614 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
615 __ delayed()->nop(); | |
616 } else { | |
1846 | 617 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); // target is a methodOop |
1503 | 618 __ verify_oop(G3_method_handle); |
619 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
620 } | |
621 } | |
622 break; | |
623 | |
624 case _adapter_retype_only: | |
625 case _adapter_retype_raw: | |
626 // Immediately jump to the next MH layer: | |
1846 | 627 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 628 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
629 // This is OK when all parameter types widen. | |
630 // It is also OK when a return type narrows. | |
631 break; | |
632 | |
633 case _adapter_check_cast: | |
634 { | |
635 // Temps: | |
636 Register G5_klass = G5_index; // Interesting AMH data. | |
637 | |
638 // Check a reference argument before jumping to the next layer of MH: | |
639 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
640 Address vmarg = __ argument_address(O0_argslot); | |
641 | |
642 // What class are we casting to? | |
1846 | 643 __ load_heap_oop(G3_amh_argument, G5_klass); // This is a Class object! |
644 __ load_heap_oop(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass); | |
1503 | 645 |
646 Label done; | |
647 __ ld_ptr(vmarg, O1_scratch); | |
648 __ tst(O1_scratch); | |
649 __ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null. | |
650 __ delayed()->nop(); | |
651 __ load_klass(O1_scratch, O1_scratch); | |
652 | |
653 // Live at this point: | |
654 // - G5_klass : klass required by the target method | |
655 // - O1_scratch : argument klass to test | |
656 // - G3_method_handle: adapter method handle | |
657 __ check_klass_subtype(O1_scratch, G5_klass, O0_argslot, O2_scratch, done); | |
658 | |
659 // If we get here, the type check failed! | |
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660 __ load_heap_oop(G3_amh_argument, O2_required); // required class |
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661 __ ld_ptr( vmarg, O1_actual); // bad object |
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662 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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663 __ delayed()->mov(Bytecodes::_checkcast, O0_code); // who is complaining? |
1503 | 664 |
665 __ bind(done); | |
666 // Get the new MH: | |
1846 | 667 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 668 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
669 } | |
670 break; | |
671 | |
672 case _adapter_prim_to_prim: | |
673 case _adapter_ref_to_prim: | |
674 // Handled completely by optimized cases. | |
675 __ stop("init_AdapterMethodHandle should not issue this"); | |
676 break; | |
677 | |
678 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
679 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
680 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
681 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
682 { | |
683 // Perform an in-place conversion to int or an int subword. | |
684 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
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685 Address value; |
1503 | 686 Address vmarg = __ argument_address(O0_argslot); |
687 bool value_left_justified = false; | |
688 | |
689 switch (ek) { | |
690 case _adapter_opt_i2i: | |
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691 value = vmarg; |
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692 break; |
1503 | 693 case _adapter_opt_l2i: |
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694 { |
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695 // just delete the extra slot |
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696 #ifdef _LP64 |
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697 // In V9, longs are given 2 64-bit slots in the interpreter, but the |
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698 // data is passed in only 1 slot. |
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699 // Keep the second slot. |
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700 __ add(Gargs, __ argument_offset(O0_argslot, -1), O0_argslot); |
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701 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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702 value = Address(O0_argslot, 4); // Get least-significant 32-bit of 64-bit value. |
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703 vmarg = Address(O0_argslot, Interpreter::stackElementSize); |
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704 #else |
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705 // Keep the first slot. |
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706 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); |
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707 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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708 value = Address(O0_argslot, 0); |
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709 vmarg = value; |
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710 #endif |
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711 } |
1503 | 712 break; |
713 case _adapter_opt_unboxi: | |
714 { | |
715 // Load the value up from the heap. | |
716 __ ld_ptr(vmarg, O1_scratch); | |
717 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
718 #ifdef ASSERT | |
719 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
720 if (is_subword_type(BasicType(bt))) | |
721 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
722 } | |
723 #endif | |
724 __ null_check(O1_scratch, value_offset); | |
725 value = Address(O1_scratch, value_offset); | |
726 #ifdef _BIG_ENDIAN | |
727 // Values stored in objects are packed. | |
728 value_left_justified = true; | |
729 #endif | |
730 } | |
731 break; | |
732 default: | |
733 ShouldNotReachHere(); | |
734 } | |
735 | |
736 // This check is required on _BIG_ENDIAN | |
737 Register G5_vminfo = G5_index; | |
738 __ ldsw(G3_amh_conversion, G5_vminfo); | |
739 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
740 | |
741 // Original 32-bit vmdata word must be of this form: | |
742 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
743 __ lduw(value, O1_scratch); | |
744 if (!value_left_justified) | |
745 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
746 Label zero_extend, done; | |
747 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
748 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
749 __ delayed()->nop(); | |
750 | |
751 // this path is taken for int->byte, int->short | |
752 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
753 __ ba(false, done); | |
754 __ delayed()->nop(); | |
755 | |
756 __ bind(zero_extend); | |
757 // this is taken for int->char | |
758 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
759 | |
760 __ bind(done); | |
761 __ st(O1_scratch, vmarg); | |
762 | |
763 // Get the new MH: | |
1846 | 764 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 765 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
766 } | |
767 break; | |
768 | |
769 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
770 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
771 { | |
772 // Perform an in-place int-to-long or ref-to-long conversion. | |
773 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
774 | |
775 // On big-endian machine we duplicate the slot and store the MSW | |
776 // in the first slot. | |
777 __ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot); | |
778 | |
779 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
780 | |
781 Address arg_lsw(O0_argslot, 0); | |
1506 | 782 Address arg_msw(O0_argslot, -Interpreter::stackElementSize); |
1503 | 783 |
784 switch (ek) { | |
785 case _adapter_opt_i2l: | |
786 { | |
787 __ ldsw(arg_lsw, O2_scratch); // Load LSW | |
788 #ifndef _LP64 | |
789 __ signx(O2_scratch, O3_scratch); // Sign extend | |
790 #endif | |
791 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 | |
792 } | |
793 break; | |
794 case _adapter_opt_unboxl: | |
795 { | |
796 // Load the value up from the heap. | |
797 __ ld_ptr(arg_lsw, O1_scratch); | |
798 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
799 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
800 __ null_check(O1_scratch, value_offset); | |
801 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
802 __ st_long(O2_scratch, arg_msw); | |
803 } | |
804 break; | |
805 default: | |
806 ShouldNotReachHere(); | |
807 } | |
808 | |
1846 | 809 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 810 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
811 } | |
812 break; | |
813 | |
814 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
815 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
816 { | |
817 // perform an in-place floating primitive conversion | |
818 __ unimplemented(entry_name(ek)); | |
819 } | |
820 break; | |
821 | |
822 case _adapter_prim_to_ref: | |
823 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
824 break; | |
825 | |
826 case _adapter_swap_args: | |
827 case _adapter_rot_args: | |
828 // handled completely by optimized cases | |
829 __ stop("init_AdapterMethodHandle should not issue this"); | |
830 break; | |
831 | |
832 case _adapter_opt_swap_1: | |
833 case _adapter_opt_swap_2: | |
834 case _adapter_opt_rot_1_up: | |
835 case _adapter_opt_rot_1_down: | |
836 case _adapter_opt_rot_2_up: | |
837 case _adapter_opt_rot_2_down: | |
838 { | |
839 int swap_bytes = 0, rotate = 0; | |
840 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); | |
841 | |
842 // 'argslot' is the position of the first argument to swap. | |
843 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
844 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
845 | |
846 // 'vminfo' is the second. | |
847 Register O1_destslot = O1_scratch; | |
848 __ ldsw(G3_amh_conversion, O1_destslot); | |
849 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
850 __ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot); | |
851 __ add(Gargs, __ argument_offset(O1_destslot), O1_destslot); | |
852 | |
853 if (!rotate) { | |
854 for (int i = 0; i < swap_bytes; i += wordSize) { | |
855 __ ld_ptr(Address(O0_argslot, i), O2_scratch); | |
856 __ ld_ptr(Address(O1_destslot, i), O3_scratch); | |
857 __ st_ptr(O3_scratch, Address(O0_argslot, i)); | |
858 __ st_ptr(O2_scratch, Address(O1_destslot, i)); | |
859 } | |
860 } else { | |
861 // Save the first chunk, which is going to get overwritten. | |
862 switch (swap_bytes) { | |
863 case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break; | |
864 case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru | |
865 case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break; | |
866 default: ShouldNotReachHere(); | |
867 } | |
868 | |
869 if (rotate > 0) { | |
870 // Rorate upward. | |
871 __ sub(O0_argslot, swap_bytes, O0_argslot); | |
872 #if ASSERT | |
873 { | |
874 // Verify that argslot > destslot, by at least swap_bytes. | |
875 Label L_ok; | |
876 __ cmp(O0_argslot, O1_destslot); | |
877 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok); | |
878 __ delayed()->nop(); | |
879 __ stop("source must be above destination (upward rotation)"); | |
880 __ bind(L_ok); | |
881 } | |
882 #endif | |
883 // Work argslot down to destslot, copying contiguous data upwards. | |
884 // Pseudo-code: | |
885 // argslot = src_addr - swap_bytes | |
886 // destslot = dest_addr | |
887 // while (argslot >= destslot) { | |
888 // *(argslot + swap_bytes) = *(argslot + 0); | |
889 // argslot--; | |
890 // } | |
891 Label loop; | |
892 __ bind(loop); | |
893 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
894 __ st_ptr(G5_index, Address(O0_argslot, swap_bytes)); | |
895 __ sub(O0_argslot, wordSize, O0_argslot); | |
896 __ cmp(O0_argslot, O1_destslot); | |
897 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop); | |
898 __ delayed()->nop(); // FILLME | |
899 } else { | |
900 __ add(O0_argslot, swap_bytes, O0_argslot); | |
901 #if ASSERT | |
902 { | |
903 // Verify that argslot < destslot, by at least swap_bytes. | |
904 Label L_ok; | |
905 __ cmp(O0_argslot, O1_destslot); | |
906 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
907 __ delayed()->nop(); | |
908 __ stop("source must be above destination (upward rotation)"); | |
909 __ bind(L_ok); | |
910 } | |
911 #endif | |
912 // Work argslot up to destslot, copying contiguous data downwards. | |
913 // Pseudo-code: | |
914 // argslot = src_addr + swap_bytes | |
915 // destslot = dest_addr | |
916 // while (argslot >= destslot) { | |
917 // *(argslot - swap_bytes) = *(argslot + 0); | |
918 // argslot++; | |
919 // } | |
920 Label loop; | |
921 __ bind(loop); | |
922 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
923 __ st_ptr(G5_index, Address(O0_argslot, -swap_bytes)); | |
924 __ add(O0_argslot, wordSize, O0_argslot); | |
925 __ cmp(O0_argslot, O1_destslot); | |
926 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop); | |
927 __ delayed()->nop(); // FILLME | |
928 } | |
929 | |
930 // Store the original first chunk into the destination slot, now free. | |
931 switch (swap_bytes) { | |
932 case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break; | |
933 case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru | |
934 case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break; | |
935 default: ShouldNotReachHere(); | |
936 } | |
937 } | |
938 | |
1846 | 939 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 940 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
941 } | |
942 break; | |
943 | |
944 case _adapter_dup_args: | |
945 { | |
946 // 'argslot' is the position of the first argument to duplicate. | |
947 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
948 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
949 | |
950 // 'stack_move' is negative number of words to duplicate. | |
951 Register G5_stack_move = G5_index; | |
952 __ ldsw(G3_amh_conversion, G5_stack_move); | |
953 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
954 | |
955 // Remember the old Gargs (argslot[0]). | |
956 Register O1_oldarg = O1_scratch; | |
957 __ mov(Gargs, O1_oldarg); | |
958 | |
959 // Move Gargs down to make room for dups. | |
960 __ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move); | |
961 __ add(Gargs, G5_stack_move, Gargs); | |
962 | |
963 // Compute the new Gargs (argslot[0]). | |
964 Register O2_newarg = O2_scratch; | |
965 __ mov(Gargs, O2_newarg); | |
966 | |
967 // Copy from oldarg[0...] down to newarg[0...] | |
968 // Pseude-code: | |
969 // O1_oldarg = old-Gargs | |
970 // O2_newarg = new-Gargs | |
971 // O0_argslot = argslot | |
972 // while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++ | |
973 Label loop; | |
974 __ bind(loop); | |
975 __ ld_ptr(Address(O0_argslot, 0), O3_scratch); | |
976 __ st_ptr(O3_scratch, Address(O2_newarg, 0)); | |
977 __ add(O0_argslot, wordSize, O0_argslot); | |
978 __ add(O2_newarg, wordSize, O2_newarg); | |
979 __ cmp(O2_newarg, O1_oldarg); | |
980 __ brx(Assembler::less, false, Assembler::pt, loop); | |
981 __ delayed()->nop(); // FILLME | |
982 | |
1846 | 983 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 984 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
985 } | |
986 break; | |
987 | |
988 case _adapter_drop_args: | |
989 { | |
990 // 'argslot' is the position of the first argument to nuke. | |
991 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
992 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
993 | |
994 // 'stack_move' is number of words to drop. | |
995 Register G5_stack_move = G5_index; | |
996 __ ldsw(G3_amh_conversion, G5_stack_move); | |
997 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
998 | |
999 remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch); | |
1000 | |
1846 | 1001 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 1002 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
1003 } | |
1004 break; | |
1005 | |
1006 case _adapter_collect_args: | |
1007 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1008 break; | |
1009 | |
1010 case _adapter_spread_args: | |
1011 // Handled completely by optimized cases. | |
1012 __ stop("init_AdapterMethodHandle should not issue this"); | |
1013 break; | |
1014 | |
1015 case _adapter_opt_spread_0: | |
1016 case _adapter_opt_spread_1: | |
1017 case _adapter_opt_spread_more: | |
1018 { | |
1019 // spread an array out into a group of arguments | |
1020 __ unimplemented(entry_name(ek)); | |
1021 } | |
1022 break; | |
1023 | |
1024 case _adapter_flyby: | |
1025 case _adapter_ricochet: | |
1026 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1027 break; | |
1028 | |
1029 default: | |
1030 ShouldNotReachHere(); | |
1031 } | |
1032 | |
1033 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
1034 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1035 | |
1036 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
710 | 1037 } |