Mercurial > hg > truffle
annotate src/cpu/sparc/vm/methodHandles_sparc.cpp @ 3436:7bf54248da9f
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author | asaha |
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date | Mon, 06 Jun 2011 10:18:37 -0700 |
parents | fabcf26ee72f |
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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_lang_invoke_MethodType::form_offset_in_bytes, O1_scratch)), O4_argslot); |
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116 __ ldsw( Address(O4_argslot, __ delayed_value(java_lang_invoke_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_lang_invoke_MethodType::form_offset_in_bytes, O1_scratch)), O2_form); |
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145 __ load_heap_oop(Address(O2_form, __ delayed_value(java_lang_invoke_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
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146 __ verify_oop(O3_adapter); |
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147 __ st_ptr(O3_adapter, Address(O4_argbase, 1 * Interpreter::stackElementSize)); |
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148 // As a trusted first argument, pass the type being called, so the adapter knows |
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149 // the actual types of the arguments and return values. |
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150 // (Generic invokers are shared among form-families of method-type.) |
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151 __ st_ptr(O0_mtype, Address(O4_argbase, 0 * Interpreter::stackElementSize)); |
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152 // FIXME: assert that O3_adapter is of the right method-type. |
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153 __ mov(O3_adapter, G3_method_handle); |
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154 trace_method_handle(_masm, "invokeGeneric"); |
1503 | 155 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
156 | |
157 return entry_point; | |
710 | 158 } |
159 | |
1503 | 160 |
161 #ifdef ASSERT | |
162 static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) { | |
163 // Verify that argslot lies within (Gargs, FP]. | |
164 Label L_ok, L_bad; | |
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165 BLOCK_COMMENT("{ verify_argslot"); |
1503 | 166 #ifdef _LP64 |
167 __ add(FP, STACK_BIAS, temp_reg); | |
168 __ cmp(argslot_reg, temp_reg); | |
169 #else | |
170 __ cmp(argslot_reg, FP); | |
171 #endif | |
172 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); | |
173 __ delayed()->nop(); | |
174 __ cmp(Gargs, argslot_reg); | |
175 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
176 __ delayed()->nop(); | |
177 __ bind(L_bad); | |
178 __ stop(error_message); | |
179 __ bind(L_ok); | |
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180 BLOCK_COMMENT("} verify_argslot"); |
1503 | 181 } |
182 #endif | |
183 | |
184 | |
185 // Helper to insert argument slots into the stack. | |
186 // arg_slots must be a multiple of stack_move_unit() and <= 0 | |
187 void MethodHandles::insert_arg_slots(MacroAssembler* _masm, | |
188 RegisterOrConstant arg_slots, | |
189 int arg_mask, | |
190 Register argslot_reg, | |
191 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
192 assert(temp3_reg != noreg, "temp3 required"); | |
193 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
194 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
195 | |
196 #ifdef ASSERT | |
197 verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame"); | |
198 if (arg_slots.is_register()) { | |
199 Label L_ok, L_bad; | |
200 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
201 __ br(Assembler::greater, false, Assembler::pn, L_bad); | |
202 __ delayed()->nop(); | |
203 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
204 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
205 __ delayed()->nop(); | |
206 __ bind(L_bad); | |
207 __ stop("assert arg_slots <= 0 and clear low bits"); | |
208 __ bind(L_ok); | |
209 } else { | |
210 assert(arg_slots.as_constant() <= 0, ""); | |
211 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
212 } | |
213 #endif // ASSERT | |
214 | |
215 #ifdef _LP64 | |
216 if (arg_slots.is_register()) { | |
217 // Was arg_slots register loaded as signed int? | |
218 Label L_ok; | |
219 __ sll(arg_slots.as_register(), BitsPerInt, temp_reg); | |
220 __ sra(temp_reg, BitsPerInt, temp_reg); | |
221 __ cmp(arg_slots.as_register(), temp_reg); | |
222 __ br(Assembler::equal, false, Assembler::pt, L_ok); | |
223 __ delayed()->nop(); | |
224 __ stop("arg_slots register not loaded as signed int"); | |
225 __ bind(L_ok); | |
226 } | |
227 #endif | |
228 | |
229 // Make space on the stack for the inserted argument(s). | |
230 // Then pull down everything shallower than argslot_reg. | |
231 // The stacked return address gets pulled down with everything else. | |
232 // That is, copy [sp, argslot) downward by -size words. In pseudo-code: | |
233 // sp -= size; | |
234 // for (temp = sp + size; temp < argslot; temp++) | |
235 // temp[-size] = temp[0] | |
236 // argslot -= size; | |
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237 BLOCK_COMMENT("insert_arg_slots {"); |
1503 | 238 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); |
239 | |
240 // Keep the stack pointer 2*wordSize aligned. | |
241 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
242 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
243 __ add(SP, masked_offset, SP); | |
244 | |
245 __ mov(Gargs, temp_reg); // source pointer for copy | |
246 __ add(Gargs, offset, Gargs); | |
247 | |
248 { | |
249 Label loop; | |
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250 __ BIND(loop); |
1503 | 251 // pull one word down each time through the loop |
252 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
253 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
254 __ add(temp_reg, wordSize, temp_reg); | |
255 __ cmp(temp_reg, argslot_reg); | |
256 __ brx(Assembler::less, false, Assembler::pt, loop); | |
257 __ delayed()->nop(); // FILLME | |
258 } | |
259 | |
260 // Now move the argslot down, to point to the opened-up space. | |
261 __ add(argslot_reg, offset, argslot_reg); | |
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262 BLOCK_COMMENT("} insert_arg_slots"); |
1503 | 263 } |
264 | |
265 | |
266 // Helper to remove argument slots from the stack. | |
267 // arg_slots must be a multiple of stack_move_unit() and >= 0 | |
268 void MethodHandles::remove_arg_slots(MacroAssembler* _masm, | |
269 RegisterOrConstant arg_slots, | |
270 Register argslot_reg, | |
271 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
272 assert(temp3_reg != noreg, "temp3 required"); | |
273 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
274 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
275 | |
276 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); | |
277 | |
278 #ifdef ASSERT | |
279 // Verify that [argslot..argslot+size) lies within (Gargs, FP). | |
280 __ add(argslot_reg, offset, temp2_reg); | |
281 verify_argslot(_masm, temp2_reg, temp_reg, "deleted argument(s) must fall within current frame"); | |
282 if (arg_slots.is_register()) { | |
283 Label L_ok, L_bad; | |
284 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
285 __ br(Assembler::less, false, Assembler::pn, L_bad); | |
286 __ delayed()->nop(); | |
287 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
288 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
289 __ delayed()->nop(); | |
290 __ bind(L_bad); | |
291 __ stop("assert arg_slots >= 0 and clear low bits"); | |
292 __ bind(L_ok); | |
293 } else { | |
294 assert(arg_slots.as_constant() >= 0, ""); | |
295 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
296 } | |
297 #endif // ASSERT | |
298 | |
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299 BLOCK_COMMENT("remove_arg_slots {"); |
1503 | 300 // Pull up everything shallower than argslot. |
301 // Then remove the excess space on the stack. | |
302 // The stacked return address gets pulled up with everything else. | |
303 // That is, copy [sp, argslot) upward by size words. In pseudo-code: | |
304 // for (temp = argslot-1; temp >= sp; --temp) | |
305 // temp[size] = temp[0] | |
306 // argslot += size; | |
307 // sp += size; | |
308 __ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy | |
309 { | |
310 Label loop; | |
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311 __ BIND(loop); |
1503 | 312 // pull one word up each time through the loop |
313 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
314 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
315 __ sub(temp_reg, wordSize, temp_reg); | |
316 __ cmp(temp_reg, Gargs); | |
317 __ brx(Assembler::greaterEqual, false, Assembler::pt, loop); | |
318 __ delayed()->nop(); // FILLME | |
319 } | |
320 | |
321 // Now move the argslot up, to point to the just-copied block. | |
322 __ add(Gargs, offset, Gargs); | |
323 // And adjust the argslot address to point at the deletion point. | |
324 __ add(argslot_reg, offset, argslot_reg); | |
325 | |
326 // Keep the stack pointer 2*wordSize aligned. | |
327 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
328 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
329 __ add(SP, masked_offset, SP); | |
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330 BLOCK_COMMENT("} remove_arg_slots"); |
1503 | 331 } |
332 | |
333 | |
334 #ifndef PRODUCT | |
335 extern "C" void print_method_handle(oop mh); | |
336 void trace_method_handle_stub(const char* adaptername, | |
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337 oopDesc* mh, |
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338 intptr_t* saved_sp) { |
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339 tty->print_cr("MH %s mh="INTPTR_FORMAT " saved_sp=" INTPTR_FORMAT, adaptername, (intptr_t) mh, saved_sp); |
1503 | 340 print_method_handle(mh); |
341 } | |
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342 void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
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343 if (!TraceMethodHandles) return; |
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344 BLOCK_COMMENT("trace_method_handle {"); |
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345 // save: Gargs, O5_savedSP |
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346 __ save_frame(16); |
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347 __ set((intptr_t) adaptername, O0); |
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348 __ mov(G3_method_handle, O1); |
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349 __ mov(I5_savedSP, O2); |
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350 __ mov(G3_method_handle, L3); |
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351 __ mov(Gargs, L4); |
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352 __ mov(G5_method_type, L5); |
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353 __ call_VM_leaf(L7, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); |
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354 |
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355 __ mov(L3, G3_method_handle); |
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356 __ mov(L4, Gargs); |
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357 __ mov(L5, G5_method_type); |
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358 __ restore(); |
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359 BLOCK_COMMENT("} trace_method_handle"); |
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360 } |
1503 | 361 #endif // PRODUCT |
362 | |
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363 // which conversion op types are implemented here? |
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364 int MethodHandles::adapter_conversion_ops_supported_mask() { |
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365 return ((1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_ONLY) |
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366 |(1<<java_lang_invoke_AdapterMethodHandle::OP_RETYPE_RAW) |
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367 |(1<<java_lang_invoke_AdapterMethodHandle::OP_CHECK_CAST) |
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368 |(1<<java_lang_invoke_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
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369 |(1<<java_lang_invoke_AdapterMethodHandle::OP_REF_TO_PRIM) |
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370 |(1<<java_lang_invoke_AdapterMethodHandle::OP_SWAP_ARGS) |
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371 |(1<<java_lang_invoke_AdapterMethodHandle::OP_ROT_ARGS) |
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372 |(1<<java_lang_invoke_AdapterMethodHandle::OP_DUP_ARGS) |
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373 |(1<<java_lang_invoke_AdapterMethodHandle::OP_DROP_ARGS) |
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374 //|(1<<java_lang_invoke_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! |
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375 ); |
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376 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. |
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377 } |
1503 | 378 |
379 //------------------------------------------------------------------------------ | |
380 // MethodHandles::generate_method_handle_stub | |
381 // | |
710 | 382 // Generate an "entry" field for a method handle. |
383 // This determines how the method handle will respond to calls. | |
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384 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
1503 | 385 // Here is the register state during an interpreted call, |
386 // as set up by generate_method_handle_interpreter_entry(): | |
387 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
388 // - G3: receiver method handle | |
389 // - O5_savedSP: sender SP (must preserve) | |
390 | |
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391 const Register O0_argslot = O0; |
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392 const Register O1_scratch = O1; |
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393 const Register O2_scratch = O2; |
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394 const Register O3_scratch = O3; |
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395 const Register G5_index = G5; |
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396 |
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397 // Argument registers for _raise_exception. |
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398 const Register O0_code = O0; |
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399 const Register O1_actual = O1; |
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400 const Register O2_required = O2; |
1503 | 401 |
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402 guarantee(java_lang_invoke_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); |
1503 | 403 |
404 // Some handy addresses: | |
405 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
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406 Address G5_method_fce( G5_method, in_bytes(methodOopDesc::from_compiled_offset())); |
1503 | 407 |
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408 Address G3_mh_vmtarget( G3_method_handle, java_lang_invoke_MethodHandle::vmtarget_offset_in_bytes()); |
1503 | 409 |
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410 Address G3_dmh_vmindex( G3_method_handle, java_lang_invoke_DirectMethodHandle::vmindex_offset_in_bytes()); |
1503 | 411 |
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412 Address G3_bmh_vmargslot( G3_method_handle, java_lang_invoke_BoundMethodHandle::vmargslot_offset_in_bytes()); |
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413 Address G3_bmh_argument( G3_method_handle, java_lang_invoke_BoundMethodHandle::argument_offset_in_bytes()); |
1503 | 414 |
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415 Address G3_amh_vmargslot( G3_method_handle, java_lang_invoke_AdapterMethodHandle::vmargslot_offset_in_bytes()); |
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416 Address G3_amh_argument ( G3_method_handle, java_lang_invoke_AdapterMethodHandle::argument_offset_in_bytes()); |
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417 Address G3_amh_conversion(G3_method_handle, java_lang_invoke_AdapterMethodHandle::conversion_offset_in_bytes()); |
1503 | 418 |
419 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
420 | |
421 if (have_entry(ek)) { | |
422 __ nop(); // empty stubs make SG sick | |
423 return; | |
424 } | |
425 | |
426 address interp_entry = __ pc(); | |
427 | |
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428 trace_method_handle(_masm, entry_name(ek)); |
1503 | 429 |
430 switch ((int) ek) { | |
431 case _raise_exception: | |
432 { | |
433 // Not a real MH entry, but rather shared code for raising an | |
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434 // exception. Since we use the compiled entry, arguments are |
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435 // expected in compiler argument registers. |
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436 assert(raise_exception_method(), "must be set"); |
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437 assert(raise_exception_method()->from_compiled_entry(), "method must be linked"); |
1503 | 438 |
439 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
440 | |
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441 Label L_no_method; |
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442 // FIXME: fill in _raise_exception_method with a suitable java.lang.invoke method |
1503 | 443 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); |
444 __ ld_ptr(Address(G5_method, 0), G5_method); | |
445 __ tst(G5_method); | |
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446 __ brx(Assembler::zero, false, Assembler::pn, L_no_method); |
1503 | 447 __ delayed()->nop(); |
448 | |
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449 const int jobject_oop_offset = 0; |
1503 | 450 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); |
451 __ tst(G5_method); | |
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452 __ brx(Assembler::zero, false, Assembler::pn, L_no_method); |
1503 | 453 __ delayed()->nop(); |
454 | |
455 __ verify_oop(G5_method); | |
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456 __ jump_indirect_to(G5_method_fce, O3_scratch); // jump to compiled entry |
1503 | 457 __ delayed()->nop(); |
458 | |
459 // Do something that is at least causes a valid throw from the interpreter. | |
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460 __ bind(L_no_method); |
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461 __ unimplemented("call throw_WrongMethodType_entry"); |
1503 | 462 } |
463 break; | |
464 | |
465 case _invokestatic_mh: | |
466 case _invokespecial_mh: | |
467 { | |
1846 | 468 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 469 __ verify_oop(G5_method); |
470 // Same as TemplateTable::invokestatic or invokespecial, | |
471 // minus the CP setup and profiling: | |
472 if (ek == _invokespecial_mh) { | |
473 // Must load & check the first argument before entering the target method. | |
474 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
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475 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); |
1503 | 476 __ null_check(G3_method_handle); |
477 __ verify_oop(G3_method_handle); | |
478 } | |
479 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
480 __ delayed()->nop(); | |
481 } | |
482 break; | |
483 | |
484 case _invokevirtual_mh: | |
485 { | |
486 // Same as TemplateTable::invokevirtual, | |
487 // minus the CP setup and profiling: | |
488 | |
489 // Pick out the vtable index and receiver offset from the MH, | |
490 // and then we can discard it: | |
491 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
492 __ ldsw(G3_dmh_vmindex, G5_index); | |
493 // Note: The verifier allows us to ignore G3_mh_vmtarget. | |
494 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
495 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
496 | |
497 // Get receiver klass: | |
498 Register O0_klass = O0_argslot; | |
499 __ load_klass(G3_method_handle, O0_klass); | |
500 __ verify_oop(O0_klass); | |
501 | |
502 // Get target methodOop & entry point: | |
503 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
504 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
505 | |
506 __ sll_ptr(G5_index, LogBytesPerWord, G5_index); | |
507 __ add(O0_klass, G5_index, O0_klass); | |
508 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); | |
509 __ ld_ptr(vtable_entry_addr, G5_method); | |
510 | |
511 __ verify_oop(G5_method); | |
512 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
513 __ delayed()->nop(); | |
514 } | |
515 break; | |
516 | |
517 case _invokeinterface_mh: | |
518 { | |
519 // Same as TemplateTable::invokeinterface, | |
520 // minus the CP setup and profiling: | |
521 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
522 Register O1_intf = O1_scratch; | |
1846 | 523 __ load_heap_oop(G3_mh_vmtarget, O1_intf); |
1503 | 524 __ ldsw(G3_dmh_vmindex, G5_index); |
525 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
526 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
527 | |
528 // Get receiver klass: | |
529 Register O0_klass = O0_argslot; | |
530 __ load_klass(G3_method_handle, O0_klass); | |
531 __ verify_oop(O0_klass); | |
532 | |
533 // Get interface: | |
534 Label no_such_interface; | |
535 __ verify_oop(O1_intf); | |
536 __ lookup_interface_method(O0_klass, O1_intf, | |
537 // Note: next two args must be the same: | |
538 G5_index, G5_method, | |
539 O2_scratch, | |
540 O3_scratch, | |
541 no_such_interface); | |
542 | |
543 __ verify_oop(G5_method); | |
544 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
545 __ delayed()->nop(); | |
546 | |
547 __ bind(no_such_interface); | |
548 // Throw an exception. | |
549 // For historical reasons, it will be IncompatibleClassChangeError. | |
550 __ unimplemented("not tested yet"); | |
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551 __ ld_ptr(Address(O1_intf, java_mirror_offset), O2_required); // required interface |
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552 __ mov( O0_klass, O1_actual); // bad receiver |
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553 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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554 __ delayed()->mov(Bytecodes::_invokeinterface, O0_code); // who is complaining? |
1503 | 555 } |
556 break; | |
557 | |
558 case _bound_ref_mh: | |
559 case _bound_int_mh: | |
560 case _bound_long_mh: | |
561 case _bound_ref_direct_mh: | |
562 case _bound_int_direct_mh: | |
563 case _bound_long_direct_mh: | |
564 { | |
565 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
566 BasicType arg_type = T_ILLEGAL; | |
567 int arg_mask = _INSERT_NO_MASK; | |
568 int arg_slots = -1; | |
569 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); | |
570 | |
571 // Make room for the new argument: | |
572 __ ldsw(G3_bmh_vmargslot, O0_argslot); | |
573 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
574 | |
575 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
576 | |
577 // Store bound argument into the new stack slot: | |
1846 | 578 __ load_heap_oop(G3_bmh_argument, O1_scratch); |
1503 | 579 if (arg_type == T_OBJECT) { |
580 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
581 } else { | |
582 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
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583 const int arg_size = type2aelembytes(arg_type); |
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584 __ load_sized_value(prim_value_addr, O2_scratch, arg_size, is_signed_subword_type(arg_type)); |
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585 __ store_sized_value(O2_scratch, Address(O0_argslot, 0), arg_size); // long store uses O2/O3 on !_LP64 |
1503 | 586 } |
587 | |
588 if (direct_to_method) { | |
1846 | 589 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 590 __ verify_oop(G5_method); |
591 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
592 __ delayed()->nop(); | |
593 } else { | |
1846 | 594 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); // target is a methodOop |
1503 | 595 __ verify_oop(G3_method_handle); |
596 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
597 } | |
598 } | |
599 break; | |
600 | |
601 case _adapter_retype_only: | |
602 case _adapter_retype_raw: | |
603 // Immediately jump to the next MH layer: | |
1846 | 604 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 605 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
606 // This is OK when all parameter types widen. | |
607 // It is also OK when a return type narrows. | |
608 break; | |
609 | |
610 case _adapter_check_cast: | |
611 { | |
612 // Temps: | |
613 Register G5_klass = G5_index; // Interesting AMH data. | |
614 | |
615 // Check a reference argument before jumping to the next layer of MH: | |
616 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
617 Address vmarg = __ argument_address(O0_argslot); | |
618 | |
619 // What class are we casting to? | |
1846 | 620 __ load_heap_oop(G3_amh_argument, G5_klass); // This is a Class object! |
621 __ load_heap_oop(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass); | |
1503 | 622 |
623 Label done; | |
624 __ ld_ptr(vmarg, O1_scratch); | |
625 __ tst(O1_scratch); | |
626 __ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null. | |
627 __ delayed()->nop(); | |
628 __ load_klass(O1_scratch, O1_scratch); | |
629 | |
630 // Live at this point: | |
631 // - G5_klass : klass required by the target method | |
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632 // - O0_argslot : argslot index in vmarg; may be required in the failing path |
1503 | 633 // - O1_scratch : argument klass to test |
634 // - G3_method_handle: adapter method handle | |
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635 __ check_klass_subtype(O1_scratch, G5_klass, O2_scratch, O3_scratch, done); |
1503 | 636 |
637 // If we get here, the type check failed! | |
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638 __ load_heap_oop(G3_amh_argument, O2_required); // required class |
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639 __ ld_ptr( vmarg, O1_actual); // bad object |
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640 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O3_scratch); |
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641 __ delayed()->mov(Bytecodes::_checkcast, O0_code); // who is complaining? |
1503 | 642 |
643 __ bind(done); | |
644 // Get the new MH: | |
1846 | 645 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 646 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
647 } | |
648 break; | |
649 | |
650 case _adapter_prim_to_prim: | |
651 case _adapter_ref_to_prim: | |
652 // Handled completely by optimized cases. | |
653 __ stop("init_AdapterMethodHandle should not issue this"); | |
654 break; | |
655 | |
656 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
657 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
658 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
659 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
660 { | |
661 // Perform an in-place conversion to int or an int subword. | |
662 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
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663 Address value; |
1503 | 664 Address vmarg = __ argument_address(O0_argslot); |
665 bool value_left_justified = false; | |
666 | |
667 switch (ek) { | |
668 case _adapter_opt_i2i: | |
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669 value = vmarg; |
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670 break; |
1503 | 671 case _adapter_opt_l2i: |
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672 { |
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673 // just delete the extra slot |
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674 #ifdef _LP64 |
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675 // In V9, longs are given 2 64-bit slots in the interpreter, but the |
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676 // data is passed in only 1 slot. |
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677 // Keep the second slot. |
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678 __ add(Gargs, __ argument_offset(O0_argslot, -1), O0_argslot); |
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679 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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680 value = Address(O0_argslot, 4); // Get least-significant 32-bit of 64-bit value. |
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681 vmarg = Address(O0_argslot, Interpreter::stackElementSize); |
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682 #else |
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683 // Keep the first slot. |
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684 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); |
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685 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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686 value = Address(O0_argslot, 0); |
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687 vmarg = value; |
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688 #endif |
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689 } |
1503 | 690 break; |
691 case _adapter_opt_unboxi: | |
692 { | |
693 // Load the value up from the heap. | |
694 __ ld_ptr(vmarg, O1_scratch); | |
695 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
696 #ifdef ASSERT | |
697 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
698 if (is_subword_type(BasicType(bt))) | |
699 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
700 } | |
701 #endif | |
702 __ null_check(O1_scratch, value_offset); | |
703 value = Address(O1_scratch, value_offset); | |
704 #ifdef _BIG_ENDIAN | |
705 // Values stored in objects are packed. | |
706 value_left_justified = true; | |
707 #endif | |
708 } | |
709 break; | |
710 default: | |
711 ShouldNotReachHere(); | |
712 } | |
713 | |
714 // This check is required on _BIG_ENDIAN | |
715 Register G5_vminfo = G5_index; | |
716 __ ldsw(G3_amh_conversion, G5_vminfo); | |
717 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
718 | |
719 // Original 32-bit vmdata word must be of this form: | |
720 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
721 __ lduw(value, O1_scratch); | |
722 if (!value_left_justified) | |
723 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
724 Label zero_extend, done; | |
725 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
726 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
727 __ delayed()->nop(); | |
728 | |
729 // this path is taken for int->byte, int->short | |
730 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
731 __ ba(false, done); | |
732 __ delayed()->nop(); | |
733 | |
734 __ bind(zero_extend); | |
735 // this is taken for int->char | |
736 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
737 | |
738 __ bind(done); | |
739 __ st(O1_scratch, vmarg); | |
740 | |
741 // Get the new MH: | |
1846 | 742 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 743 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
744 } | |
745 break; | |
746 | |
747 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
748 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
749 { | |
750 // Perform an in-place int-to-long or ref-to-long conversion. | |
751 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
752 | |
753 // On big-endian machine we duplicate the slot and store the MSW | |
754 // in the first slot. | |
755 __ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot); | |
756 | |
757 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
758 | |
759 Address arg_lsw(O0_argslot, 0); | |
1506 | 760 Address arg_msw(O0_argslot, -Interpreter::stackElementSize); |
1503 | 761 |
762 switch (ek) { | |
763 case _adapter_opt_i2l: | |
764 { | |
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765 #ifdef _LP64 |
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766 __ ldsw(arg_lsw, O2_scratch); // Load LSW sign-extended |
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767 #else |
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768 __ ldsw(arg_lsw, O3_scratch); // Load LSW sign-extended |
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769 __ srlx(O3_scratch, BitsPerInt, O2_scratch); // Move MSW value to lower 32-bits for std |
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770 #endif |
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771 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 |
1503 | 772 } |
773 break; | |
774 case _adapter_opt_unboxl: | |
775 { | |
776 // Load the value up from the heap. | |
777 __ ld_ptr(arg_lsw, O1_scratch); | |
778 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
779 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
780 __ null_check(O1_scratch, value_offset); | |
781 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
782 __ st_long(O2_scratch, arg_msw); | |
783 } | |
784 break; | |
785 default: | |
786 ShouldNotReachHere(); | |
787 } | |
788 | |
1846 | 789 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 790 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
791 } | |
792 break; | |
793 | |
794 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
795 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
796 { | |
797 // perform an in-place floating primitive conversion | |
798 __ unimplemented(entry_name(ek)); | |
799 } | |
800 break; | |
801 | |
802 case _adapter_prim_to_ref: | |
803 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
804 break; | |
805 | |
806 case _adapter_swap_args: | |
807 case _adapter_rot_args: | |
808 // handled completely by optimized cases | |
809 __ stop("init_AdapterMethodHandle should not issue this"); | |
810 break; | |
811 | |
812 case _adapter_opt_swap_1: | |
813 case _adapter_opt_swap_2: | |
814 case _adapter_opt_rot_1_up: | |
815 case _adapter_opt_rot_1_down: | |
816 case _adapter_opt_rot_2_up: | |
817 case _adapter_opt_rot_2_down: | |
818 { | |
819 int swap_bytes = 0, rotate = 0; | |
820 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); | |
821 | |
822 // 'argslot' is the position of the first argument to swap. | |
823 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
824 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
825 | |
826 // 'vminfo' is the second. | |
827 Register O1_destslot = O1_scratch; | |
828 __ ldsw(G3_amh_conversion, O1_destslot); | |
829 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
830 __ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot); | |
831 __ add(Gargs, __ argument_offset(O1_destslot), O1_destslot); | |
832 | |
833 if (!rotate) { | |
834 for (int i = 0; i < swap_bytes; i += wordSize) { | |
835 __ ld_ptr(Address(O0_argslot, i), O2_scratch); | |
836 __ ld_ptr(Address(O1_destslot, i), O3_scratch); | |
837 __ st_ptr(O3_scratch, Address(O0_argslot, i)); | |
838 __ st_ptr(O2_scratch, Address(O1_destslot, i)); | |
839 } | |
840 } else { | |
841 // Save the first chunk, which is going to get overwritten. | |
842 switch (swap_bytes) { | |
843 case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break; | |
844 case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru | |
845 case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break; | |
846 default: ShouldNotReachHere(); | |
847 } | |
848 | |
849 if (rotate > 0) { | |
850 // Rorate upward. | |
851 __ sub(O0_argslot, swap_bytes, O0_argslot); | |
852 #if ASSERT | |
853 { | |
854 // Verify that argslot > destslot, by at least swap_bytes. | |
855 Label L_ok; | |
856 __ cmp(O0_argslot, O1_destslot); | |
857 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok); | |
858 __ delayed()->nop(); | |
859 __ stop("source must be above destination (upward rotation)"); | |
860 __ bind(L_ok); | |
861 } | |
862 #endif | |
863 // Work argslot down to destslot, copying contiguous data upwards. | |
864 // Pseudo-code: | |
865 // argslot = src_addr - swap_bytes | |
866 // destslot = dest_addr | |
867 // while (argslot >= destslot) { | |
868 // *(argslot + swap_bytes) = *(argslot + 0); | |
869 // argslot--; | |
870 // } | |
871 Label loop; | |
872 __ bind(loop); | |
873 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
874 __ st_ptr(G5_index, Address(O0_argslot, swap_bytes)); | |
875 __ sub(O0_argslot, wordSize, O0_argslot); | |
876 __ cmp(O0_argslot, O1_destslot); | |
877 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop); | |
878 __ delayed()->nop(); // FILLME | |
879 } else { | |
880 __ add(O0_argslot, swap_bytes, O0_argslot); | |
881 #if ASSERT | |
882 { | |
883 // Verify that argslot < destslot, by at least swap_bytes. | |
884 Label L_ok; | |
885 __ cmp(O0_argslot, O1_destslot); | |
886 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
887 __ delayed()->nop(); | |
888 __ stop("source must be above destination (upward rotation)"); | |
889 __ bind(L_ok); | |
890 } | |
891 #endif | |
892 // Work argslot up to destslot, copying contiguous data downwards. | |
893 // Pseudo-code: | |
894 // argslot = src_addr + swap_bytes | |
895 // destslot = dest_addr | |
896 // while (argslot >= destslot) { | |
897 // *(argslot - swap_bytes) = *(argslot + 0); | |
898 // argslot++; | |
899 // } | |
900 Label loop; | |
901 __ bind(loop); | |
902 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
903 __ st_ptr(G5_index, Address(O0_argslot, -swap_bytes)); | |
904 __ add(O0_argslot, wordSize, O0_argslot); | |
905 __ cmp(O0_argslot, O1_destslot); | |
906 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop); | |
907 __ delayed()->nop(); // FILLME | |
908 } | |
909 | |
910 // Store the original first chunk into the destination slot, now free. | |
911 switch (swap_bytes) { | |
912 case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break; | |
913 case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru | |
914 case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break; | |
915 default: ShouldNotReachHere(); | |
916 } | |
917 } | |
918 | |
1846 | 919 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 920 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
921 } | |
922 break; | |
923 | |
924 case _adapter_dup_args: | |
925 { | |
926 // 'argslot' is the position of the first argument to duplicate. | |
927 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
928 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
929 | |
930 // 'stack_move' is negative number of words to duplicate. | |
931 Register G5_stack_move = G5_index; | |
932 __ ldsw(G3_amh_conversion, G5_stack_move); | |
933 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
934 | |
935 // Remember the old Gargs (argslot[0]). | |
936 Register O1_oldarg = O1_scratch; | |
937 __ mov(Gargs, O1_oldarg); | |
938 | |
939 // Move Gargs down to make room for dups. | |
940 __ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move); | |
941 __ add(Gargs, G5_stack_move, Gargs); | |
942 | |
943 // Compute the new Gargs (argslot[0]). | |
944 Register O2_newarg = O2_scratch; | |
945 __ mov(Gargs, O2_newarg); | |
946 | |
947 // Copy from oldarg[0...] down to newarg[0...] | |
948 // Pseude-code: | |
949 // O1_oldarg = old-Gargs | |
950 // O2_newarg = new-Gargs | |
951 // O0_argslot = argslot | |
952 // while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++ | |
953 Label loop; | |
954 __ bind(loop); | |
955 __ ld_ptr(Address(O0_argslot, 0), O3_scratch); | |
956 __ st_ptr(O3_scratch, Address(O2_newarg, 0)); | |
957 __ add(O0_argslot, wordSize, O0_argslot); | |
958 __ add(O2_newarg, wordSize, O2_newarg); | |
959 __ cmp(O2_newarg, O1_oldarg); | |
960 __ brx(Assembler::less, false, Assembler::pt, loop); | |
961 __ delayed()->nop(); // FILLME | |
962 | |
1846 | 963 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 964 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
965 } | |
966 break; | |
967 | |
968 case _adapter_drop_args: | |
969 { | |
970 // 'argslot' is the position of the first argument to nuke. | |
971 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
972 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
973 | |
974 // 'stack_move' is number of words to drop. | |
975 Register G5_stack_move = G5_index; | |
976 __ ldsw(G3_amh_conversion, G5_stack_move); | |
977 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
978 | |
979 remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch); | |
980 | |
1846 | 981 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 982 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
983 } | |
984 break; | |
985 | |
986 case _adapter_collect_args: | |
987 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
988 break; | |
989 | |
990 case _adapter_spread_args: | |
991 // Handled completely by optimized cases. | |
992 __ stop("init_AdapterMethodHandle should not issue this"); | |
993 break; | |
994 | |
995 case _adapter_opt_spread_0: | |
996 case _adapter_opt_spread_1: | |
997 case _adapter_opt_spread_more: | |
998 { | |
999 // spread an array out into a group of arguments | |
1000 __ unimplemented(entry_name(ek)); | |
1001 } | |
1002 break; | |
1003 | |
1004 case _adapter_flyby: | |
1005 case _adapter_ricochet: | |
1006 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1007 break; | |
1008 | |
1009 default: | |
1010 ShouldNotReachHere(); | |
1011 } | |
1012 | |
1013 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
1014 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1015 | |
1016 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
710 | 1017 } |