Mercurial > hg > graal-jvmci-8
annotate src/cpu/sparc/vm/methodHandles_sparc.cpp @ 1911:fff777a71346
6994093: MethodHandle.invokeGeneric needs porting to SPARC
Summary: SPARC code missing from fix to 6939224
Reviewed-by: twisti
author | jrose |
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date | Sat, 30 Oct 2010 11:45:49 -0700 |
parents | 7aff5786cc02 |
children | e62345fd6a46 |
rev | line source |
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710 | 1 /* |
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2 * Copyright (c) 2008, 2010, 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 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_methodHandles_sparc.cpp.incl" | |
27 | |
28 #define __ _masm-> | |
29 | |
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30 #ifdef PRODUCT |
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31 #define BLOCK_COMMENT(str) /* nothing */ |
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32 #else |
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33 #define BLOCK_COMMENT(str) __ block_comment(str) |
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34 #endif |
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35 |
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36 #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
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37 |
710 | 38 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
39 address interpreted_entry) { | |
1503 | 40 // Just before the actual machine code entry point, allocate space |
41 // for a MethodHandleEntry::Data record, so that we can manage everything | |
42 // from one base pointer. | |
710 | 43 __ align(wordSize); |
44 address target = __ pc() + sizeof(Data); | |
45 while (__ pc() < target) { | |
46 __ nop(); | |
47 __ align(wordSize); | |
48 } | |
49 | |
50 MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); | |
51 me->set_end_address(__ pc()); // set a temporary end_address | |
52 me->set_from_interpreted_entry(interpreted_entry); | |
53 me->set_type_checking_entry(NULL); | |
54 | |
55 return (address) me; | |
56 } | |
57 | |
58 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, | |
59 address start_addr) { | |
60 MethodHandleEntry* me = (MethodHandleEntry*) start_addr; | |
61 assert(me->end_address() == start_addr, "valid ME"); | |
62 | |
63 // Fill in the real end_address: | |
64 __ align(wordSize); | |
65 me->set_end_address(__ pc()); | |
66 | |
67 return me; | |
68 } | |
69 | |
70 | |
71 // Code generation | |
72 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { | |
1503 | 73 // I5_savedSP: sender SP (must preserve) |
74 // G4 (Gargs): incoming argument list (must preserve) | |
75 // G5_method: invoke methodOop; becomes method type. | |
76 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots]) | |
77 // O0, O1: garbage temps, blown away | |
78 Register O0_argslot = O0; | |
79 Register O1_scratch = O1; | |
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80 Register O2_scratch = O2; |
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81 Register O3_scratch = O3; |
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82 Register O4_argbase = O4; |
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83 Register O5_mtype = O5; |
1503 | 84 |
85 // emit WrongMethodType path first, to enable back-branch from main path | |
86 Label wrong_method_type; | |
87 __ bind(wrong_method_type); | |
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88 Label invoke_generic_slow_path; |
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89 assert(methodOopDesc::intrinsic_id_size_in_bytes() == sizeof(u1), "");; |
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90 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
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91 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeExact); |
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92 __ brx(Assembler::notEqual, false, Assembler::pt, invoke_generic_slow_path); |
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93 __ delayed()->nop(); |
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94 __ mov(O5_mtype, G5_method_type); // required by throw_WrongMethodType |
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95 // mov(G3_method_handle, G3_method_handle); // already in this register |
1503 | 96 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); |
97 __ delayed()->nop(); | |
98 | |
99 // here's where control starts out: | |
100 __ align(CodeEntryAlignment); | |
101 address entry_point = __ pc(); | |
102 | |
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103 // fetch the MethodType from the method handle |
1503 | 104 { |
105 Register tem = G5_method; | |
106 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { | |
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107 __ ld_ptr(Address(tem, *pchase), O5_mtype); |
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108 tem = O5_mtype; // in case there is another indirection |
1503 | 109 } |
110 } | |
111 | |
112 // given the MethodType, find out where the MH argument is buried | |
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113 __ load_heap_oop(Address(O5_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O0_argslot); |
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114 __ ldsw( Address(O0_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O0_argslot); |
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115 __ add(Gargs, __ argument_offset(O0_argslot, 1), O4_argbase); |
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116 // Note: argument_address uses its input as a scratch register! |
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117 __ ld_ptr(Address(O4_argbase, -Interpreter::stackElementSize), G3_method_handle); |
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118 |
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119 trace_method_handle(_masm, "invokeExact"); |
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120 |
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121 __ check_method_handle_type(O5_mtype, G3_method_handle, O1_scratch, wrong_method_type); |
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122 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
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123 |
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124 // for invokeGeneric (only), apply argument and result conversions on the fly |
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125 __ bind(invoke_generic_slow_path); |
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126 #ifdef ASSERT |
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127 { Label L; |
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128 __ ldub(Address(G5_method, methodOopDesc::intrinsic_id_offset_in_bytes()), O1_scratch); |
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129 __ cmp(O1_scratch, (int) vmIntrinsics::_invokeGeneric); |
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130 __ brx(Assembler::equal, false, Assembler::pt, L); |
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131 __ delayed()->nop(); |
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132 __ stop("bad methodOop::intrinsic_id"); |
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133 __ bind(L); |
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134 } |
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135 #endif //ASSERT |
1503 | 136 |
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137 // make room on the stack for another pointer: |
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138 insert_arg_slots(_masm, 2 * stack_move_unit(), _INSERT_REF_MASK, |
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139 O4_argbase, O1_scratch, O2_scratch, O3_scratch); |
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140 // load up an adapter from the calling type (Java weaves this) |
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141 Register O2_form = O2_scratch; |
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142 Register O3_adapter = O3_scratch; |
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143 __ load_heap_oop(Address(O5_mtype, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O2_form); |
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144 // load_heap_oop(Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
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145 // deal with old JDK versions: |
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146 __ add( Address(O2_form, __ delayed_value(java_dyn_MethodTypeForm::genericInvoker_offset_in_bytes, O1_scratch)), O3_adapter); |
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147 __ cmp(O3_adapter, O2_form); |
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148 Label sorry_no_invoke_generic; |
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149 __ brx(Assembler::lessUnsigned, false, Assembler::pn, sorry_no_invoke_generic); |
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150 __ delayed()->nop(); |
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151 |
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152 __ load_heap_oop(Address(O3_adapter, 0), O3_adapter); |
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153 __ tst(O3_adapter); |
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154 __ brx(Assembler::zero, false, Assembler::pn, sorry_no_invoke_generic); |
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155 __ delayed()->nop(); |
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156 __ st_ptr(O3_adapter, Address(O4_argbase, 1 * Interpreter::stackElementSize)); |
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157 // As a trusted first argument, pass the type being called, so the adapter knows |
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158 // the actual types of the arguments and return values. |
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159 // (Generic invokers are shared among form-families of method-type.) |
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160 __ st_ptr(O5_mtype, Address(O4_argbase, 0 * Interpreter::stackElementSize)); |
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161 // FIXME: assert that O3_adapter is of the right method-type. |
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162 __ mov(O3_adapter, G3_method_handle); |
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163 trace_method_handle(_masm, "invokeGeneric"); |
1503 | 164 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
165 | |
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166 __ bind(sorry_no_invoke_generic); // no invokeGeneric implementation available! |
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167 __ mov(O5_mtype, G5_method_type); // required by throw_WrongMethodType |
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168 // mov(G3_method_handle, G3_method_handle); // already in this register |
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169 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); |
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170 __ delayed()->nop(); |
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171 |
1503 | 172 return entry_point; |
710 | 173 } |
174 | |
1503 | 175 |
176 #ifdef ASSERT | |
177 static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) { | |
178 // Verify that argslot lies within (Gargs, FP]. | |
179 Label L_ok, L_bad; | |
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180 BLOCK_COMMENT("{ verify_argslot"); |
1503 | 181 #ifdef _LP64 |
182 __ add(FP, STACK_BIAS, temp_reg); | |
183 __ cmp(argslot_reg, temp_reg); | |
184 #else | |
185 __ cmp(argslot_reg, FP); | |
186 #endif | |
187 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); | |
188 __ delayed()->nop(); | |
189 __ cmp(Gargs, argslot_reg); | |
190 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
191 __ delayed()->nop(); | |
192 __ bind(L_bad); | |
193 __ stop(error_message); | |
194 __ bind(L_ok); | |
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195 BLOCK_COMMENT("} verify_argslot"); |
1503 | 196 } |
197 #endif | |
198 | |
199 | |
200 // Helper to insert argument slots into the stack. | |
201 // arg_slots must be a multiple of stack_move_unit() and <= 0 | |
202 void MethodHandles::insert_arg_slots(MacroAssembler* _masm, | |
203 RegisterOrConstant arg_slots, | |
204 int arg_mask, | |
205 Register argslot_reg, | |
206 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
207 assert(temp3_reg != noreg, "temp3 required"); | |
208 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
209 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
210 | |
211 #ifdef ASSERT | |
212 verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame"); | |
213 if (arg_slots.is_register()) { | |
214 Label L_ok, L_bad; | |
215 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
216 __ br(Assembler::greater, false, Assembler::pn, L_bad); | |
217 __ delayed()->nop(); | |
218 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
219 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
220 __ delayed()->nop(); | |
221 __ bind(L_bad); | |
222 __ stop("assert arg_slots <= 0 and clear low bits"); | |
223 __ bind(L_ok); | |
224 } else { | |
225 assert(arg_slots.as_constant() <= 0, ""); | |
226 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
227 } | |
228 #endif // ASSERT | |
229 | |
230 #ifdef _LP64 | |
231 if (arg_slots.is_register()) { | |
232 // Was arg_slots register loaded as signed int? | |
233 Label L_ok; | |
234 __ sll(arg_slots.as_register(), BitsPerInt, temp_reg); | |
235 __ sra(temp_reg, BitsPerInt, temp_reg); | |
236 __ cmp(arg_slots.as_register(), temp_reg); | |
237 __ br(Assembler::equal, false, Assembler::pt, L_ok); | |
238 __ delayed()->nop(); | |
239 __ stop("arg_slots register not loaded as signed int"); | |
240 __ bind(L_ok); | |
241 } | |
242 #endif | |
243 | |
244 // Make space on the stack for the inserted argument(s). | |
245 // Then pull down everything shallower than argslot_reg. | |
246 // The stacked return address gets pulled down with everything else. | |
247 // That is, copy [sp, argslot) downward by -size words. In pseudo-code: | |
248 // sp -= size; | |
249 // for (temp = sp + size; temp < argslot; temp++) | |
250 // temp[-size] = temp[0] | |
251 // argslot -= size; | |
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252 BLOCK_COMMENT("insert_arg_slots {"); |
1503 | 253 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); |
254 | |
255 // Keep the stack pointer 2*wordSize aligned. | |
256 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
257 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
258 __ add(SP, masked_offset, SP); | |
259 | |
260 __ mov(Gargs, temp_reg); // source pointer for copy | |
261 __ add(Gargs, offset, Gargs); | |
262 | |
263 { | |
264 Label loop; | |
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265 __ BIND(loop); |
1503 | 266 // pull one word down each time through the loop |
267 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
268 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
269 __ add(temp_reg, wordSize, temp_reg); | |
270 __ cmp(temp_reg, argslot_reg); | |
271 __ brx(Assembler::less, false, Assembler::pt, loop); | |
272 __ delayed()->nop(); // FILLME | |
273 } | |
274 | |
275 // Now move the argslot down, to point to the opened-up space. | |
276 __ add(argslot_reg, offset, argslot_reg); | |
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277 BLOCK_COMMENT("} insert_arg_slots"); |
1503 | 278 } |
279 | |
280 | |
281 // Helper to remove argument slots from the stack. | |
282 // arg_slots must be a multiple of stack_move_unit() and >= 0 | |
283 void MethodHandles::remove_arg_slots(MacroAssembler* _masm, | |
284 RegisterOrConstant arg_slots, | |
285 Register argslot_reg, | |
286 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
287 assert(temp3_reg != noreg, "temp3 required"); | |
288 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
289 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
290 | |
291 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); | |
292 | |
293 #ifdef ASSERT | |
294 // Verify that [argslot..argslot+size) lies within (Gargs, FP). | |
295 __ add(argslot_reg, offset, temp2_reg); | |
296 verify_argslot(_masm, temp2_reg, temp_reg, "deleted argument(s) must fall within current frame"); | |
297 if (arg_slots.is_register()) { | |
298 Label L_ok, L_bad; | |
299 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
300 __ br(Assembler::less, false, Assembler::pn, L_bad); | |
301 __ delayed()->nop(); | |
302 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
303 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
304 __ delayed()->nop(); | |
305 __ bind(L_bad); | |
306 __ stop("assert arg_slots >= 0 and clear low bits"); | |
307 __ bind(L_ok); | |
308 } else { | |
309 assert(arg_slots.as_constant() >= 0, ""); | |
310 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
311 } | |
312 #endif // ASSERT | |
313 | |
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314 BLOCK_COMMENT("remove_arg_slots {"); |
1503 | 315 // Pull up everything shallower than argslot. |
316 // Then remove the excess space on the stack. | |
317 // The stacked return address gets pulled up with everything else. | |
318 // That is, copy [sp, argslot) upward by size words. In pseudo-code: | |
319 // for (temp = argslot-1; temp >= sp; --temp) | |
320 // temp[size] = temp[0] | |
321 // argslot += size; | |
322 // sp += size; | |
323 __ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy | |
324 { | |
325 Label loop; | |
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326 __ BIND(loop); |
1503 | 327 // pull one word up each time through the loop |
328 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
329 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
330 __ sub(temp_reg, wordSize, temp_reg); | |
331 __ cmp(temp_reg, Gargs); | |
332 __ brx(Assembler::greaterEqual, false, Assembler::pt, loop); | |
333 __ delayed()->nop(); // FILLME | |
334 } | |
335 | |
336 // Now move the argslot up, to point to the just-copied block. | |
337 __ add(Gargs, offset, Gargs); | |
338 // And adjust the argslot address to point at the deletion point. | |
339 __ add(argslot_reg, offset, argslot_reg); | |
340 | |
341 // Keep the stack pointer 2*wordSize aligned. | |
342 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
343 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
344 __ add(SP, masked_offset, SP); | |
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345 BLOCK_COMMENT("} remove_arg_slots"); |
1503 | 346 } |
347 | |
348 | |
349 #ifndef PRODUCT | |
350 extern "C" void print_method_handle(oop mh); | |
351 void trace_method_handle_stub(const char* adaptername, | |
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352 oopDesc* mh) { |
1503 | 353 printf("MH %s mh="INTPTR_FORMAT"\n", adaptername, (intptr_t) mh); |
354 print_method_handle(mh); | |
355 } | |
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356 void MethodHandles::trace_method_handle(MacroAssembler* _masm, const char* adaptername) { |
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357 if (!TraceMethodHandles) return; |
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358 BLOCK_COMMENT("trace_method_handle {"); |
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359 // save: Gargs, O5_savedSP |
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360 __ save_frame(16); |
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361 __ set((intptr_t) adaptername, O0); |
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362 __ mov(G3_method_handle, O1); |
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363 __ mov(G3_method_handle, L3); |
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364 __ mov(Gargs, L4); |
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365 __ mov(G5_method_type, L5); |
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366 __ call_VM_leaf(L7, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); |
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367 |
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368 __ mov(L3, G3_method_handle); |
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369 __ mov(L4, Gargs); |
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370 __ mov(L5, G5_method_type); |
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371 __ restore(); |
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372 BLOCK_COMMENT("} trace_method_handle"); |
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373 } |
1503 | 374 #endif // PRODUCT |
375 | |
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376 // which conversion op types are implemented here? |
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377 int MethodHandles::adapter_conversion_ops_supported_mask() { |
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378 return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY) |
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379 |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) |
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380 |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST) |
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381 |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
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382 |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM) |
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383 |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS) |
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384 |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS) |
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385 |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS) |
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386 |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS) |
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387 //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! |
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388 ); |
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389 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. |
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390 } |
1503 | 391 |
392 //------------------------------------------------------------------------------ | |
393 // MethodHandles::generate_method_handle_stub | |
394 // | |
710 | 395 // Generate an "entry" field for a method handle. |
396 // This determines how the method handle will respond to calls. | |
397 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { | |
1503 | 398 // Here is the register state during an interpreted call, |
399 // as set up by generate_method_handle_interpreter_entry(): | |
400 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
401 // - G3: receiver method handle | |
402 // - O5_savedSP: sender SP (must preserve) | |
403 | |
404 Register O0_argslot = O0; | |
405 Register O1_scratch = O1; | |
406 Register O2_scratch = O2; | |
407 Register O3_scratch = O3; | |
408 Register G5_index = G5; | |
409 | |
410 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); | |
411 | |
412 // Some handy addresses: | |
413 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
414 | |
415 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes()); | |
416 | |
417 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes()); | |
418 | |
419 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes()); | |
420 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes()); | |
421 | |
422 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes()); | |
423 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes()); | |
424 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes()); | |
425 | |
426 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
427 | |
428 if (have_entry(ek)) { | |
429 __ nop(); // empty stubs make SG sick | |
430 return; | |
431 } | |
432 | |
433 address interp_entry = __ pc(); | |
434 | |
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435 trace_method_handle(_masm, entry_name(ek)); |
1503 | 436 |
437 switch ((int) ek) { | |
438 case _raise_exception: | |
439 { | |
440 // Not a real MH entry, but rather shared code for raising an | |
441 // exception. Extra local arguments are passed in scratch | |
442 // registers, as required type in O3, failing object (or NULL) | |
443 // in O2, failing bytecode type in O1. | |
444 | |
445 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
446 | |
447 // Push arguments as if coming from the interpreter. | |
448 Register O0_scratch = O0_argslot; | |
1506 | 449 int stackElementSize = Interpreter::stackElementSize; |
1503 | 450 |
1564 | 451 // Make space on the stack for the arguments and set Gargs |
452 // correctly. | |
453 __ sub(SP, 4*stackElementSize, SP); // Keep stack aligned. | |
454 __ add(SP, (frame::varargs_offset)*wordSize - 1*Interpreter::stackElementSize + STACK_BIAS + BytesPerWord, Gargs); | |
1503 | 455 |
456 // void raiseException(int code, Object actual, Object required) | |
457 __ st( O1_scratch, Address(Gargs, 2*stackElementSize)); // code | |
458 __ st_ptr(O2_scratch, Address(Gargs, 1*stackElementSize)); // actual | |
459 __ st_ptr(O3_scratch, Address(Gargs, 0*stackElementSize)); // required | |
460 | |
461 Label no_method; | |
462 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method | |
463 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); | |
464 __ ld_ptr(Address(G5_method, 0), G5_method); | |
465 __ tst(G5_method); | |
466 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
467 __ delayed()->nop(); | |
468 | |
469 int jobject_oop_offset = 0; | |
470 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); | |
471 __ tst(G5_method); | |
472 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
473 __ delayed()->nop(); | |
474 | |
475 __ verify_oop(G5_method); | |
476 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
477 __ delayed()->nop(); | |
478 | |
479 // If we get here, the Java runtime did not do its job of creating the exception. | |
480 // Do something that is at least causes a valid throw from the interpreter. | |
481 __ bind(no_method); | |
482 __ unimplemented("_raise_exception no method"); | |
483 } | |
484 break; | |
485 | |
486 case _invokestatic_mh: | |
487 case _invokespecial_mh: | |
488 { | |
1846 | 489 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 490 __ verify_oop(G5_method); |
491 // Same as TemplateTable::invokestatic or invokespecial, | |
492 // minus the CP setup and profiling: | |
493 if (ek == _invokespecial_mh) { | |
494 // Must load & check the first argument before entering the target method. | |
495 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
496 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); | |
497 __ null_check(G3_method_handle); | |
498 __ verify_oop(G3_method_handle); | |
499 } | |
500 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
501 __ delayed()->nop(); | |
502 } | |
503 break; | |
504 | |
505 case _invokevirtual_mh: | |
506 { | |
507 // Same as TemplateTable::invokevirtual, | |
508 // minus the CP setup and profiling: | |
509 | |
510 // Pick out the vtable index and receiver offset from the MH, | |
511 // and then we can discard it: | |
512 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
513 __ ldsw(G3_dmh_vmindex, G5_index); | |
514 // Note: The verifier allows us to ignore G3_mh_vmtarget. | |
515 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
516 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
517 | |
518 // Get receiver klass: | |
519 Register O0_klass = O0_argslot; | |
520 __ load_klass(G3_method_handle, O0_klass); | |
521 __ verify_oop(O0_klass); | |
522 | |
523 // Get target methodOop & entry point: | |
524 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
525 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
526 | |
527 __ sll_ptr(G5_index, LogBytesPerWord, G5_index); | |
528 __ add(O0_klass, G5_index, O0_klass); | |
529 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); | |
530 __ ld_ptr(vtable_entry_addr, G5_method); | |
531 | |
532 __ verify_oop(G5_method); | |
533 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
534 __ delayed()->nop(); | |
535 } | |
536 break; | |
537 | |
538 case _invokeinterface_mh: | |
539 { | |
540 // Same as TemplateTable::invokeinterface, | |
541 // minus the CP setup and profiling: | |
542 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
543 Register O1_intf = O1_scratch; | |
1846 | 544 __ load_heap_oop(G3_mh_vmtarget, O1_intf); |
1503 | 545 __ ldsw(G3_dmh_vmindex, G5_index); |
546 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
547 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
548 | |
549 // Get receiver klass: | |
550 Register O0_klass = O0_argslot; | |
551 __ load_klass(G3_method_handle, O0_klass); | |
552 __ verify_oop(O0_klass); | |
553 | |
554 // Get interface: | |
555 Label no_such_interface; | |
556 __ verify_oop(O1_intf); | |
557 __ lookup_interface_method(O0_klass, O1_intf, | |
558 // Note: next two args must be the same: | |
559 G5_index, G5_method, | |
560 O2_scratch, | |
561 O3_scratch, | |
562 no_such_interface); | |
563 | |
564 __ verify_oop(G5_method); | |
565 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
566 __ delayed()->nop(); | |
567 | |
568 __ bind(no_such_interface); | |
569 // Throw an exception. | |
570 // For historical reasons, it will be IncompatibleClassChangeError. | |
571 __ unimplemented("not tested yet"); | |
572 __ ld_ptr(Address(O1_intf, java_mirror_offset), O3_scratch); // required interface | |
573 __ mov(O0_klass, O2_scratch); // bad receiver | |
574 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
575 __ delayed()->mov(Bytecodes::_invokeinterface, O1_scratch); // who is complaining? | |
576 } | |
577 break; | |
578 | |
579 case _bound_ref_mh: | |
580 case _bound_int_mh: | |
581 case _bound_long_mh: | |
582 case _bound_ref_direct_mh: | |
583 case _bound_int_direct_mh: | |
584 case _bound_long_direct_mh: | |
585 { | |
586 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
587 BasicType arg_type = T_ILLEGAL; | |
588 int arg_mask = _INSERT_NO_MASK; | |
589 int arg_slots = -1; | |
590 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); | |
591 | |
592 // Make room for the new argument: | |
593 __ ldsw(G3_bmh_vmargslot, O0_argslot); | |
594 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
595 | |
596 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
597 | |
598 // Store bound argument into the new stack slot: | |
1846 | 599 __ load_heap_oop(G3_bmh_argument, O1_scratch); |
1503 | 600 if (arg_type == T_OBJECT) { |
601 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
602 } else { | |
603 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
604 __ load_sized_value(prim_value_addr, O2_scratch, type2aelembytes(arg_type), is_signed_subword_type(arg_type)); | |
605 if (arg_slots == 2) { | |
606 __ unimplemented("not yet tested"); | |
607 #ifndef _LP64 | |
608 __ signx(O2_scratch, O3_scratch); // Sign extend | |
609 #endif | |
610 __ st_long(O2_scratch, Address(O0_argslot, 0)); // Uses O2/O3 on !_LP64 | |
611 } else { | |
612 __ st_ptr( O2_scratch, Address(O0_argslot, 0)); | |
613 } | |
614 } | |
615 | |
616 if (direct_to_method) { | |
1846 | 617 __ load_heap_oop(G3_mh_vmtarget, G5_method); // target is a methodOop |
1503 | 618 __ verify_oop(G5_method); |
619 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
620 __ delayed()->nop(); | |
621 } else { | |
1846 | 622 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); // target is a methodOop |
1503 | 623 __ verify_oop(G3_method_handle); |
624 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
625 } | |
626 } | |
627 break; | |
628 | |
629 case _adapter_retype_only: | |
630 case _adapter_retype_raw: | |
631 // Immediately jump to the next MH layer: | |
1846 | 632 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 633 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
634 // This is OK when all parameter types widen. | |
635 // It is also OK when a return type narrows. | |
636 break; | |
637 | |
638 case _adapter_check_cast: | |
639 { | |
640 // Temps: | |
641 Register G5_klass = G5_index; // Interesting AMH data. | |
642 | |
643 // Check a reference argument before jumping to the next layer of MH: | |
644 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
645 Address vmarg = __ argument_address(O0_argslot); | |
646 | |
647 // What class are we casting to? | |
1846 | 648 __ load_heap_oop(G3_amh_argument, G5_klass); // This is a Class object! |
649 __ load_heap_oop(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass); | |
1503 | 650 |
651 Label done; | |
652 __ ld_ptr(vmarg, O1_scratch); | |
653 __ tst(O1_scratch); | |
654 __ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null. | |
655 __ delayed()->nop(); | |
656 __ load_klass(O1_scratch, O1_scratch); | |
657 | |
658 // Live at this point: | |
659 // - G5_klass : klass required by the target method | |
660 // - O1_scratch : argument klass to test | |
661 // - G3_method_handle: adapter method handle | |
662 __ check_klass_subtype(O1_scratch, G5_klass, O0_argslot, O2_scratch, done); | |
663 | |
664 // If we get here, the type check failed! | |
665 __ ldsw(G3_amh_vmargslot, O0_argslot); // reload argslot field | |
1846 | 666 __ load_heap_oop(G3_amh_argument, O3_scratch); // required class |
1503 | 667 __ ld_ptr(vmarg, O2_scratch); // bad object |
668 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
669 __ delayed()->mov(Bytecodes::_checkcast, O1_scratch); // who is complaining? | |
670 | |
671 __ bind(done); | |
672 // Get the new MH: | |
1846 | 673 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 674 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
675 } | |
676 break; | |
677 | |
678 case _adapter_prim_to_prim: | |
679 case _adapter_ref_to_prim: | |
680 // Handled completely by optimized cases. | |
681 __ stop("init_AdapterMethodHandle should not issue this"); | |
682 break; | |
683 | |
684 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
685 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
686 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
687 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
688 { | |
689 // Perform an in-place conversion to int or an int subword. | |
690 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
691 Address vmarg = __ argument_address(O0_argslot); | |
692 Address value; | |
693 bool value_left_justified = false; | |
694 | |
695 switch (ek) { | |
696 case _adapter_opt_i2i: | |
1901
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697 value = vmarg; |
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698 break; |
1503 | 699 case _adapter_opt_l2i: |
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700 { |
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701 // just delete the extra slot |
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702 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); |
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703 remove_arg_slots(_masm, -stack_move_unit(), O0_argslot, O1_scratch, O2_scratch, O3_scratch); |
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704 value = vmarg = Address(O0_argslot, 0); |
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705 } |
1503 | 706 break; |
707 case _adapter_opt_unboxi: | |
708 { | |
709 // Load the value up from the heap. | |
710 __ ld_ptr(vmarg, O1_scratch); | |
711 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
712 #ifdef ASSERT | |
713 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
714 if (is_subword_type(BasicType(bt))) | |
715 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
716 } | |
717 #endif | |
718 __ null_check(O1_scratch, value_offset); | |
719 value = Address(O1_scratch, value_offset); | |
720 #ifdef _BIG_ENDIAN | |
721 // Values stored in objects are packed. | |
722 value_left_justified = true; | |
723 #endif | |
724 } | |
725 break; | |
726 default: | |
727 ShouldNotReachHere(); | |
728 } | |
729 | |
730 // This check is required on _BIG_ENDIAN | |
731 Register G5_vminfo = G5_index; | |
732 __ ldsw(G3_amh_conversion, G5_vminfo); | |
733 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
734 | |
735 // Original 32-bit vmdata word must be of this form: | |
736 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
737 __ lduw(value, O1_scratch); | |
738 if (!value_left_justified) | |
739 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
740 Label zero_extend, done; | |
741 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
742 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
743 __ delayed()->nop(); | |
744 | |
745 // this path is taken for int->byte, int->short | |
746 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
747 __ ba(false, done); | |
748 __ delayed()->nop(); | |
749 | |
750 __ bind(zero_extend); | |
751 // this is taken for int->char | |
752 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
753 | |
754 __ bind(done); | |
755 __ st(O1_scratch, vmarg); | |
756 | |
757 // Get the new MH: | |
1846 | 758 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 759 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
760 } | |
761 break; | |
762 | |
763 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
764 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
765 { | |
766 // Perform an in-place int-to-long or ref-to-long conversion. | |
767 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
768 | |
769 // On big-endian machine we duplicate the slot and store the MSW | |
770 // in the first slot. | |
771 __ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot); | |
772 | |
773 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
774 | |
775 Address arg_lsw(O0_argslot, 0); | |
1506 | 776 Address arg_msw(O0_argslot, -Interpreter::stackElementSize); |
1503 | 777 |
778 switch (ek) { | |
779 case _adapter_opt_i2l: | |
780 { | |
781 __ ldsw(arg_lsw, O2_scratch); // Load LSW | |
782 #ifndef _LP64 | |
783 __ signx(O2_scratch, O3_scratch); // Sign extend | |
784 #endif | |
785 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 | |
786 } | |
787 break; | |
788 case _adapter_opt_unboxl: | |
789 { | |
790 // Load the value up from the heap. | |
791 __ ld_ptr(arg_lsw, O1_scratch); | |
792 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
793 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
794 __ null_check(O1_scratch, value_offset); | |
795 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
796 __ st_long(O2_scratch, arg_msw); | |
797 } | |
798 break; | |
799 default: | |
800 ShouldNotReachHere(); | |
801 } | |
802 | |
1846 | 803 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 804 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
805 } | |
806 break; | |
807 | |
808 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
809 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
810 { | |
811 // perform an in-place floating primitive conversion | |
812 __ unimplemented(entry_name(ek)); | |
813 } | |
814 break; | |
815 | |
816 case _adapter_prim_to_ref: | |
817 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
818 break; | |
819 | |
820 case _adapter_swap_args: | |
821 case _adapter_rot_args: | |
822 // handled completely by optimized cases | |
823 __ stop("init_AdapterMethodHandle should not issue this"); | |
824 break; | |
825 | |
826 case _adapter_opt_swap_1: | |
827 case _adapter_opt_swap_2: | |
828 case _adapter_opt_rot_1_up: | |
829 case _adapter_opt_rot_1_down: | |
830 case _adapter_opt_rot_2_up: | |
831 case _adapter_opt_rot_2_down: | |
832 { | |
833 int swap_bytes = 0, rotate = 0; | |
834 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); | |
835 | |
836 // 'argslot' is the position of the first argument to swap. | |
837 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
838 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
839 | |
840 // 'vminfo' is the second. | |
841 Register O1_destslot = O1_scratch; | |
842 __ ldsw(G3_amh_conversion, O1_destslot); | |
843 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
844 __ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot); | |
845 __ add(Gargs, __ argument_offset(O1_destslot), O1_destslot); | |
846 | |
847 if (!rotate) { | |
848 for (int i = 0; i < swap_bytes; i += wordSize) { | |
849 __ ld_ptr(Address(O0_argslot, i), O2_scratch); | |
850 __ ld_ptr(Address(O1_destslot, i), O3_scratch); | |
851 __ st_ptr(O3_scratch, Address(O0_argslot, i)); | |
852 __ st_ptr(O2_scratch, Address(O1_destslot, i)); | |
853 } | |
854 } else { | |
855 // Save the first chunk, which is going to get overwritten. | |
856 switch (swap_bytes) { | |
857 case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break; | |
858 case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru | |
859 case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break; | |
860 default: ShouldNotReachHere(); | |
861 } | |
862 | |
863 if (rotate > 0) { | |
864 // Rorate upward. | |
865 __ sub(O0_argslot, swap_bytes, O0_argslot); | |
866 #if ASSERT | |
867 { | |
868 // Verify that argslot > destslot, by at least swap_bytes. | |
869 Label L_ok; | |
870 __ cmp(O0_argslot, O1_destslot); | |
871 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok); | |
872 __ delayed()->nop(); | |
873 __ stop("source must be above destination (upward rotation)"); | |
874 __ bind(L_ok); | |
875 } | |
876 #endif | |
877 // Work argslot down to destslot, copying contiguous data upwards. | |
878 // Pseudo-code: | |
879 // argslot = src_addr - swap_bytes | |
880 // destslot = dest_addr | |
881 // while (argslot >= destslot) { | |
882 // *(argslot + swap_bytes) = *(argslot + 0); | |
883 // argslot--; | |
884 // } | |
885 Label loop; | |
886 __ bind(loop); | |
887 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
888 __ st_ptr(G5_index, Address(O0_argslot, swap_bytes)); | |
889 __ sub(O0_argslot, wordSize, O0_argslot); | |
890 __ cmp(O0_argslot, O1_destslot); | |
891 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop); | |
892 __ delayed()->nop(); // FILLME | |
893 } else { | |
894 __ add(O0_argslot, swap_bytes, O0_argslot); | |
895 #if ASSERT | |
896 { | |
897 // Verify that argslot < destslot, by at least swap_bytes. | |
898 Label L_ok; | |
899 __ cmp(O0_argslot, O1_destslot); | |
900 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
901 __ delayed()->nop(); | |
902 __ stop("source must be above destination (upward rotation)"); | |
903 __ bind(L_ok); | |
904 } | |
905 #endif | |
906 // Work argslot up to destslot, copying contiguous data downwards. | |
907 // Pseudo-code: | |
908 // argslot = src_addr + swap_bytes | |
909 // destslot = dest_addr | |
910 // while (argslot >= destslot) { | |
911 // *(argslot - swap_bytes) = *(argslot + 0); | |
912 // argslot++; | |
913 // } | |
914 Label loop; | |
915 __ bind(loop); | |
916 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
917 __ st_ptr(G5_index, Address(O0_argslot, -swap_bytes)); | |
918 __ add(O0_argslot, wordSize, O0_argslot); | |
919 __ cmp(O0_argslot, O1_destslot); | |
920 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop); | |
921 __ delayed()->nop(); // FILLME | |
922 } | |
923 | |
924 // Store the original first chunk into the destination slot, now free. | |
925 switch (swap_bytes) { | |
926 case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break; | |
927 case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru | |
928 case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break; | |
929 default: ShouldNotReachHere(); | |
930 } | |
931 } | |
932 | |
1846 | 933 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 934 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
935 } | |
936 break; | |
937 | |
938 case _adapter_dup_args: | |
939 { | |
940 // 'argslot' is the position of the first argument to duplicate. | |
941 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
942 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
943 | |
944 // 'stack_move' is negative number of words to duplicate. | |
945 Register G5_stack_move = G5_index; | |
946 __ ldsw(G3_amh_conversion, G5_stack_move); | |
947 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
948 | |
949 // Remember the old Gargs (argslot[0]). | |
950 Register O1_oldarg = O1_scratch; | |
951 __ mov(Gargs, O1_oldarg); | |
952 | |
953 // Move Gargs down to make room for dups. | |
954 __ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move); | |
955 __ add(Gargs, G5_stack_move, Gargs); | |
956 | |
957 // Compute the new Gargs (argslot[0]). | |
958 Register O2_newarg = O2_scratch; | |
959 __ mov(Gargs, O2_newarg); | |
960 | |
961 // Copy from oldarg[0...] down to newarg[0...] | |
962 // Pseude-code: | |
963 // O1_oldarg = old-Gargs | |
964 // O2_newarg = new-Gargs | |
965 // O0_argslot = argslot | |
966 // while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++ | |
967 Label loop; | |
968 __ bind(loop); | |
969 __ ld_ptr(Address(O0_argslot, 0), O3_scratch); | |
970 __ st_ptr(O3_scratch, Address(O2_newarg, 0)); | |
971 __ add(O0_argslot, wordSize, O0_argslot); | |
972 __ add(O2_newarg, wordSize, O2_newarg); | |
973 __ cmp(O2_newarg, O1_oldarg); | |
974 __ brx(Assembler::less, false, Assembler::pt, loop); | |
975 __ delayed()->nop(); // FILLME | |
976 | |
1846 | 977 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 978 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
979 } | |
980 break; | |
981 | |
982 case _adapter_drop_args: | |
983 { | |
984 // 'argslot' is the position of the first argument to nuke. | |
985 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
986 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
987 | |
988 // 'stack_move' is number of words to drop. | |
989 Register G5_stack_move = G5_index; | |
990 __ ldsw(G3_amh_conversion, G5_stack_move); | |
991 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
992 | |
993 remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch); | |
994 | |
1846 | 995 __ load_heap_oop(G3_mh_vmtarget, G3_method_handle); |
1503 | 996 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); |
997 } | |
998 break; | |
999 | |
1000 case _adapter_collect_args: | |
1001 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1002 break; | |
1003 | |
1004 case _adapter_spread_args: | |
1005 // Handled completely by optimized cases. | |
1006 __ stop("init_AdapterMethodHandle should not issue this"); | |
1007 break; | |
1008 | |
1009 case _adapter_opt_spread_0: | |
1010 case _adapter_opt_spread_1: | |
1011 case _adapter_opt_spread_more: | |
1012 { | |
1013 // spread an array out into a group of arguments | |
1014 __ unimplemented(entry_name(ek)); | |
1015 } | |
1016 break; | |
1017 | |
1018 case _adapter_flyby: | |
1019 case _adapter_ricochet: | |
1020 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1021 break; | |
1022 | |
1023 default: | |
1024 ShouldNotReachHere(); | |
1025 } | |
1026 | |
1027 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
1028 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
1029 | |
1030 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
710 | 1031 } |