Mercurial > hg > truffle
annotate src/cpu/sparc/vm/methodHandles_sparc.cpp @ 1564:61b2245abf36
6930772: JSR 292 needs to support SPARC C1
Summary: C1 for SPARC needs to support JSR 292.
Reviewed-by: never, jrose
author | twisti |
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date | Fri, 21 May 2010 02:59:24 -0700 |
parents | cd5dbf694d45 |
children | e9ff18c4ace7 |
rev | line source |
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710 | 1 /* |
1503 | 2 * Copyright 2008-2010 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_methodHandles_sparc.cpp.incl" | |
27 | |
28 #define __ _masm-> | |
29 | |
30 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, | |
31 address interpreted_entry) { | |
1503 | 32 // Just before the actual machine code entry point, allocate space |
33 // for a MethodHandleEntry::Data record, so that we can manage everything | |
34 // from one base pointer. | |
710 | 35 __ align(wordSize); |
36 address target = __ pc() + sizeof(Data); | |
37 while (__ pc() < target) { | |
38 __ nop(); | |
39 __ align(wordSize); | |
40 } | |
41 | |
42 MethodHandleEntry* me = (MethodHandleEntry*) __ pc(); | |
43 me->set_end_address(__ pc()); // set a temporary end_address | |
44 me->set_from_interpreted_entry(interpreted_entry); | |
45 me->set_type_checking_entry(NULL); | |
46 | |
47 return (address) me; | |
48 } | |
49 | |
50 MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _masm, | |
51 address start_addr) { | |
52 MethodHandleEntry* me = (MethodHandleEntry*) start_addr; | |
53 assert(me->end_address() == start_addr, "valid ME"); | |
54 | |
55 // Fill in the real end_address: | |
56 __ align(wordSize); | |
57 me->set_end_address(__ pc()); | |
58 | |
59 return me; | |
60 } | |
61 | |
62 | |
63 // Code generation | |
64 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { | |
1503 | 65 // I5_savedSP: sender SP (must preserve) |
66 // G4 (Gargs): incoming argument list (must preserve) | |
67 // G5_method: invoke methodOop; becomes method type. | |
68 // G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots]) | |
69 // O0, O1: garbage temps, blown away | |
70 Register O0_argslot = O0; | |
71 Register O1_scratch = O1; | |
72 | |
73 // emit WrongMethodType path first, to enable back-branch from main path | |
74 Label wrong_method_type; | |
75 __ bind(wrong_method_type); | |
76 __ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch); | |
77 __ delayed()->nop(); | |
78 | |
79 // here's where control starts out: | |
80 __ align(CodeEntryAlignment); | |
81 address entry_point = __ pc(); | |
82 | |
83 // fetch the MethodType from the method handle into G5_method_type | |
84 { | |
85 Register tem = G5_method; | |
86 assert(tem == G5_method_type, "yes, it's the same register"); | |
87 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { | |
88 __ ld_ptr(Address(tem, *pchase), G5_method_type); | |
89 } | |
90 } | |
91 | |
92 // given the MethodType, find out where the MH argument is buried | |
93 __ ld_ptr(Address(G5_method_type, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O0_argslot); | |
94 __ ldsw( Address(O0_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O0_argslot); | |
95 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); | |
96 | |
97 __ check_method_handle_type(G5_method_type, G3_method_handle, O1_scratch, wrong_method_type); | |
98 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
99 | |
100 return entry_point; | |
710 | 101 } |
102 | |
1503 | 103 |
104 #ifdef ASSERT | |
105 static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) { | |
106 // Verify that argslot lies within (Gargs, FP]. | |
107 Label L_ok, L_bad; | |
108 #ifdef _LP64 | |
109 __ add(FP, STACK_BIAS, temp_reg); | |
110 __ cmp(argslot_reg, temp_reg); | |
111 #else | |
112 __ cmp(argslot_reg, FP); | |
113 #endif | |
114 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad); | |
115 __ delayed()->nop(); | |
116 __ cmp(Gargs, argslot_reg); | |
117 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
118 __ delayed()->nop(); | |
119 __ bind(L_bad); | |
120 __ stop(error_message); | |
121 __ bind(L_ok); | |
122 } | |
123 #endif | |
124 | |
125 | |
126 // Helper to insert argument slots into the stack. | |
127 // arg_slots must be a multiple of stack_move_unit() and <= 0 | |
128 void MethodHandles::insert_arg_slots(MacroAssembler* _masm, | |
129 RegisterOrConstant arg_slots, | |
130 int arg_mask, | |
131 Register argslot_reg, | |
132 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
133 assert(temp3_reg != noreg, "temp3 required"); | |
134 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
135 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
136 | |
137 #ifdef ASSERT | |
138 verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame"); | |
139 if (arg_slots.is_register()) { | |
140 Label L_ok, L_bad; | |
141 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
142 __ br(Assembler::greater, false, Assembler::pn, L_bad); | |
143 __ delayed()->nop(); | |
144 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
145 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
146 __ delayed()->nop(); | |
147 __ bind(L_bad); | |
148 __ stop("assert arg_slots <= 0 and clear low bits"); | |
149 __ bind(L_ok); | |
150 } else { | |
151 assert(arg_slots.as_constant() <= 0, ""); | |
152 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
153 } | |
154 #endif // ASSERT | |
155 | |
156 #ifdef _LP64 | |
157 if (arg_slots.is_register()) { | |
158 // Was arg_slots register loaded as signed int? | |
159 Label L_ok; | |
160 __ sll(arg_slots.as_register(), BitsPerInt, temp_reg); | |
161 __ sra(temp_reg, BitsPerInt, temp_reg); | |
162 __ cmp(arg_slots.as_register(), temp_reg); | |
163 __ br(Assembler::equal, false, Assembler::pt, L_ok); | |
164 __ delayed()->nop(); | |
165 __ stop("arg_slots register not loaded as signed int"); | |
166 __ bind(L_ok); | |
167 } | |
168 #endif | |
169 | |
170 // Make space on the stack for the inserted argument(s). | |
171 // Then pull down everything shallower than argslot_reg. | |
172 // The stacked return address gets pulled down with everything else. | |
173 // That is, copy [sp, argslot) downward by -size words. In pseudo-code: | |
174 // sp -= size; | |
175 // for (temp = sp + size; temp < argslot; temp++) | |
176 // temp[-size] = temp[0] | |
177 // argslot -= size; | |
178 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); | |
179 | |
180 // Keep the stack pointer 2*wordSize aligned. | |
181 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
182 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
183 __ add(SP, masked_offset, SP); | |
184 | |
185 __ mov(Gargs, temp_reg); // source pointer for copy | |
186 __ add(Gargs, offset, Gargs); | |
187 | |
188 { | |
189 Label loop; | |
190 __ bind(loop); | |
191 // pull one word down each time through the loop | |
192 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
193 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
194 __ add(temp_reg, wordSize, temp_reg); | |
195 __ cmp(temp_reg, argslot_reg); | |
196 __ brx(Assembler::less, false, Assembler::pt, loop); | |
197 __ delayed()->nop(); // FILLME | |
198 } | |
199 | |
200 // Now move the argslot down, to point to the opened-up space. | |
201 __ add(argslot_reg, offset, argslot_reg); | |
202 } | |
203 | |
204 | |
205 // Helper to remove argument slots from the stack. | |
206 // arg_slots must be a multiple of stack_move_unit() and >= 0 | |
207 void MethodHandles::remove_arg_slots(MacroAssembler* _masm, | |
208 RegisterOrConstant arg_slots, | |
209 Register argslot_reg, | |
210 Register temp_reg, Register temp2_reg, Register temp3_reg) { | |
211 assert(temp3_reg != noreg, "temp3 required"); | |
212 assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg, | |
213 (!arg_slots.is_register() ? Gargs : arg_slots.as_register())); | |
214 | |
215 RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg); | |
216 | |
217 #ifdef ASSERT | |
218 // Verify that [argslot..argslot+size) lies within (Gargs, FP). | |
219 __ add(argslot_reg, offset, temp2_reg); | |
220 verify_argslot(_masm, temp2_reg, temp_reg, "deleted argument(s) must fall within current frame"); | |
221 if (arg_slots.is_register()) { | |
222 Label L_ok, L_bad; | |
223 __ cmp(arg_slots.as_register(), (int32_t) NULL_WORD); | |
224 __ br(Assembler::less, false, Assembler::pn, L_bad); | |
225 __ delayed()->nop(); | |
226 __ btst(-stack_move_unit() - 1, arg_slots.as_register()); | |
227 __ br(Assembler::zero, false, Assembler::pt, L_ok); | |
228 __ delayed()->nop(); | |
229 __ bind(L_bad); | |
230 __ stop("assert arg_slots >= 0 and clear low bits"); | |
231 __ bind(L_ok); | |
232 } else { | |
233 assert(arg_slots.as_constant() >= 0, ""); | |
234 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); | |
235 } | |
236 #endif // ASSERT | |
237 | |
238 // Pull up everything shallower than argslot. | |
239 // Then remove the excess space on the stack. | |
240 // The stacked return address gets pulled up with everything else. | |
241 // That is, copy [sp, argslot) upward by size words. In pseudo-code: | |
242 // for (temp = argslot-1; temp >= sp; --temp) | |
243 // temp[size] = temp[0] | |
244 // argslot += size; | |
245 // sp += size; | |
246 __ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy | |
247 { | |
248 Label loop; | |
249 __ bind(loop); | |
250 // pull one word up each time through the loop | |
251 __ ld_ptr(Address(temp_reg, 0), temp2_reg); | |
252 __ st_ptr(temp2_reg, Address(temp_reg, offset)); | |
253 __ sub(temp_reg, wordSize, temp_reg); | |
254 __ cmp(temp_reg, Gargs); | |
255 __ brx(Assembler::greaterEqual, false, Assembler::pt, loop); | |
256 __ delayed()->nop(); // FILLME | |
257 } | |
258 | |
259 // Now move the argslot up, to point to the just-copied block. | |
260 __ add(Gargs, offset, Gargs); | |
261 // And adjust the argslot address to point at the deletion point. | |
262 __ add(argslot_reg, offset, argslot_reg); | |
263 | |
264 // Keep the stack pointer 2*wordSize aligned. | |
265 const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1); | |
266 RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg); | |
267 __ add(SP, masked_offset, SP); | |
268 } | |
269 | |
270 | |
271 #ifndef PRODUCT | |
272 extern "C" void print_method_handle(oop mh); | |
273 void trace_method_handle_stub(const char* adaptername, | |
274 oop mh) { | |
275 #if 0 | |
276 intptr_t* entry_sp, | |
277 intptr_t* saved_sp, | |
278 intptr_t* saved_bp) { | |
279 // called as a leaf from native code: do not block the JVM! | |
280 intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset]; | |
281 intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset]; | |
282 printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n", | |
283 adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp); | |
284 if (last_sp != saved_sp) | |
285 printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp); | |
286 #endif | |
287 | |
288 printf("MH %s mh="INTPTR_FORMAT"\n", adaptername, (intptr_t) mh); | |
289 print_method_handle(mh); | |
290 } | |
291 #endif // PRODUCT | |
292 | |
1507
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293 // which conversion op types are implemented here? |
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294 int MethodHandles::adapter_conversion_ops_supported_mask() { |
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295 return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY) |
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296 |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) |
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297 |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST) |
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298 |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM) |
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299 |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM) |
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300 |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS) |
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301 |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS) |
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302 |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS) |
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303 |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS) |
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304 //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! |
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305 ); |
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306 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. |
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307 } |
1503 | 308 |
309 //------------------------------------------------------------------------------ | |
310 // MethodHandles::generate_method_handle_stub | |
311 // | |
710 | 312 // Generate an "entry" field for a method handle. |
313 // This determines how the method handle will respond to calls. | |
314 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { | |
1503 | 315 // Here is the register state during an interpreted call, |
316 // as set up by generate_method_handle_interpreter_entry(): | |
317 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
318 // - G3: receiver method handle | |
319 // - O5_savedSP: sender SP (must preserve) | |
320 | |
321 Register O0_argslot = O0; | |
322 Register O1_scratch = O1; | |
323 Register O2_scratch = O2; | |
324 Register O3_scratch = O3; | |
325 Register G5_index = G5; | |
326 | |
327 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); | |
328 | |
329 // Some handy addresses: | |
330 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
331 | |
332 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes()); | |
333 | |
334 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes()); | |
335 | |
336 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes()); | |
337 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes()); | |
338 | |
339 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes()); | |
340 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes()); | |
341 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes()); | |
342 | |
343 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
344 | |
345 if (have_entry(ek)) { | |
346 __ nop(); // empty stubs make SG sick | |
347 return; | |
348 } | |
349 | |
350 address interp_entry = __ pc(); | |
351 if (UseCompressedOops) __ unimplemented("UseCompressedOops"); | |
352 | |
353 #ifndef PRODUCT | |
354 if (TraceMethodHandles) { | |
355 // save: Gargs, O5_savedSP | |
356 __ save(SP, -16*wordSize, SP); | |
357 __ set((intptr_t) entry_name(ek), O0); | |
358 __ mov(G3_method_handle, O1); | |
359 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); | |
360 __ restore(SP, 16*wordSize, SP); | |
361 } | |
362 #endif // PRODUCT | |
363 | |
364 switch ((int) ek) { | |
365 case _raise_exception: | |
366 { | |
367 // Not a real MH entry, but rather shared code for raising an | |
368 // exception. Extra local arguments are passed in scratch | |
369 // registers, as required type in O3, failing object (or NULL) | |
370 // in O2, failing bytecode type in O1. | |
371 | |
372 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
373 | |
374 // Push arguments as if coming from the interpreter. | |
375 Register O0_scratch = O0_argslot; | |
1506 | 376 int stackElementSize = Interpreter::stackElementSize; |
1503 | 377 |
1564 | 378 // Make space on the stack for the arguments and set Gargs |
379 // correctly. | |
380 __ sub(SP, 4*stackElementSize, SP); // Keep stack aligned. | |
381 __ add(SP, (frame::varargs_offset)*wordSize - 1*Interpreter::stackElementSize + STACK_BIAS + BytesPerWord, Gargs); | |
1503 | 382 |
383 // void raiseException(int code, Object actual, Object required) | |
384 __ st( O1_scratch, Address(Gargs, 2*stackElementSize)); // code | |
385 __ st_ptr(O2_scratch, Address(Gargs, 1*stackElementSize)); // actual | |
386 __ st_ptr(O3_scratch, Address(Gargs, 0*stackElementSize)); // required | |
387 | |
388 Label no_method; | |
389 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method | |
390 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); | |
391 __ ld_ptr(Address(G5_method, 0), G5_method); | |
392 __ tst(G5_method); | |
393 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
394 __ delayed()->nop(); | |
395 | |
396 int jobject_oop_offset = 0; | |
397 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); | |
398 __ tst(G5_method); | |
399 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
400 __ delayed()->nop(); | |
401 | |
402 __ verify_oop(G5_method); | |
403 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
404 __ delayed()->nop(); | |
405 | |
406 // If we get here, the Java runtime did not do its job of creating the exception. | |
407 // Do something that is at least causes a valid throw from the interpreter. | |
408 __ bind(no_method); | |
409 __ unimplemented("_raise_exception no method"); | |
410 } | |
411 break; | |
412 | |
413 case _invokestatic_mh: | |
414 case _invokespecial_mh: | |
415 { | |
416 __ ld_ptr(G3_mh_vmtarget, G5_method); // target is a methodOop | |
417 __ verify_oop(G5_method); | |
418 // Same as TemplateTable::invokestatic or invokespecial, | |
419 // minus the CP setup and profiling: | |
420 if (ek == _invokespecial_mh) { | |
421 // Must load & check the first argument before entering the target method. | |
422 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
423 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); | |
424 __ null_check(G3_method_handle); | |
425 __ verify_oop(G3_method_handle); | |
426 } | |
427 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
428 __ delayed()->nop(); | |
429 } | |
430 break; | |
431 | |
432 case _invokevirtual_mh: | |
433 { | |
434 // Same as TemplateTable::invokevirtual, | |
435 // minus the CP setup and profiling: | |
436 | |
437 // Pick out the vtable index and receiver offset from the MH, | |
438 // and then we can discard it: | |
439 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
440 __ ldsw(G3_dmh_vmindex, G5_index); | |
441 // Note: The verifier allows us to ignore G3_mh_vmtarget. | |
442 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
443 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
444 | |
445 // Get receiver klass: | |
446 Register O0_klass = O0_argslot; | |
447 __ load_klass(G3_method_handle, O0_klass); | |
448 __ verify_oop(O0_klass); | |
449 | |
450 // Get target methodOop & entry point: | |
451 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
452 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
453 | |
454 __ sll_ptr(G5_index, LogBytesPerWord, G5_index); | |
455 __ add(O0_klass, G5_index, O0_klass); | |
456 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); | |
457 __ ld_ptr(vtable_entry_addr, G5_method); | |
458 | |
459 __ verify_oop(G5_method); | |
460 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
461 __ delayed()->nop(); | |
462 } | |
463 break; | |
464 | |
465 case _invokeinterface_mh: | |
466 { | |
467 // Same as TemplateTable::invokeinterface, | |
468 // minus the CP setup and profiling: | |
469 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
470 Register O1_intf = O1_scratch; | |
471 __ ld_ptr(G3_mh_vmtarget, O1_intf); | |
472 __ ldsw(G3_dmh_vmindex, G5_index); | |
473 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
474 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
475 | |
476 // Get receiver klass: | |
477 Register O0_klass = O0_argslot; | |
478 __ load_klass(G3_method_handle, O0_klass); | |
479 __ verify_oop(O0_klass); | |
480 | |
481 // Get interface: | |
482 Label no_such_interface; | |
483 __ verify_oop(O1_intf); | |
484 __ lookup_interface_method(O0_klass, O1_intf, | |
485 // Note: next two args must be the same: | |
486 G5_index, G5_method, | |
487 O2_scratch, | |
488 O3_scratch, | |
489 no_such_interface); | |
490 | |
491 __ verify_oop(G5_method); | |
492 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
493 __ delayed()->nop(); | |
494 | |
495 __ bind(no_such_interface); | |
496 // Throw an exception. | |
497 // For historical reasons, it will be IncompatibleClassChangeError. | |
498 __ unimplemented("not tested yet"); | |
499 __ ld_ptr(Address(O1_intf, java_mirror_offset), O3_scratch); // required interface | |
500 __ mov(O0_klass, O2_scratch); // bad receiver | |
501 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
502 __ delayed()->mov(Bytecodes::_invokeinterface, O1_scratch); // who is complaining? | |
503 } | |
504 break; | |
505 | |
506 case _bound_ref_mh: | |
507 case _bound_int_mh: | |
508 case _bound_long_mh: | |
509 case _bound_ref_direct_mh: | |
510 case _bound_int_direct_mh: | |
511 case _bound_long_direct_mh: | |
512 { | |
513 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
514 BasicType arg_type = T_ILLEGAL; | |
515 int arg_mask = _INSERT_NO_MASK; | |
516 int arg_slots = -1; | |
517 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); | |
518 | |
519 // Make room for the new argument: | |
520 __ ldsw(G3_bmh_vmargslot, O0_argslot); | |
521 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
522 | |
523 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
524 | |
525 // Store bound argument into the new stack slot: | |
526 __ ld_ptr(G3_bmh_argument, O1_scratch); | |
527 if (arg_type == T_OBJECT) { | |
528 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
529 } else { | |
530 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
531 __ load_sized_value(prim_value_addr, O2_scratch, type2aelembytes(arg_type), is_signed_subword_type(arg_type)); | |
532 if (arg_slots == 2) { | |
533 __ unimplemented("not yet tested"); | |
534 #ifndef _LP64 | |
535 __ signx(O2_scratch, O3_scratch); // Sign extend | |
536 #endif | |
537 __ st_long(O2_scratch, Address(O0_argslot, 0)); // Uses O2/O3 on !_LP64 | |
538 } else { | |
539 __ st_ptr( O2_scratch, Address(O0_argslot, 0)); | |
540 } | |
541 } | |
542 | |
543 if (direct_to_method) { | |
544 __ ld_ptr(G3_mh_vmtarget, G5_method); // target is a methodOop | |
545 __ verify_oop(G5_method); | |
546 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
547 __ delayed()->nop(); | |
548 } else { | |
549 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); // target is a methodOop | |
550 __ verify_oop(G3_method_handle); | |
551 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
552 } | |
553 } | |
554 break; | |
555 | |
556 case _adapter_retype_only: | |
557 case _adapter_retype_raw: | |
558 // Immediately jump to the next MH layer: | |
559 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
560 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
561 // This is OK when all parameter types widen. | |
562 // It is also OK when a return type narrows. | |
563 break; | |
564 | |
565 case _adapter_check_cast: | |
566 { | |
567 // Temps: | |
568 Register G5_klass = G5_index; // Interesting AMH data. | |
569 | |
570 // Check a reference argument before jumping to the next layer of MH: | |
571 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
572 Address vmarg = __ argument_address(O0_argslot); | |
573 | |
574 // What class are we casting to? | |
575 __ ld_ptr(G3_amh_argument, G5_klass); // This is a Class object! | |
576 __ ld_ptr(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass); | |
577 | |
578 Label done; | |
579 __ ld_ptr(vmarg, O1_scratch); | |
580 __ tst(O1_scratch); | |
581 __ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null. | |
582 __ delayed()->nop(); | |
583 __ load_klass(O1_scratch, O1_scratch); | |
584 | |
585 // Live at this point: | |
586 // - G5_klass : klass required by the target method | |
587 // - O1_scratch : argument klass to test | |
588 // - G3_method_handle: adapter method handle | |
589 __ check_klass_subtype(O1_scratch, G5_klass, O0_argslot, O2_scratch, done); | |
590 | |
591 // If we get here, the type check failed! | |
592 __ ldsw(G3_amh_vmargslot, O0_argslot); // reload argslot field | |
593 __ ld_ptr(G3_amh_argument, O3_scratch); // required class | |
594 __ ld_ptr(vmarg, O2_scratch); // bad object | |
595 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
596 __ delayed()->mov(Bytecodes::_checkcast, O1_scratch); // who is complaining? | |
597 | |
598 __ bind(done); | |
599 // Get the new MH: | |
600 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
601 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
602 } | |
603 break; | |
604 | |
605 case _adapter_prim_to_prim: | |
606 case _adapter_ref_to_prim: | |
607 // Handled completely by optimized cases. | |
608 __ stop("init_AdapterMethodHandle should not issue this"); | |
609 break; | |
610 | |
611 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
612 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
613 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
614 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
615 { | |
616 // Perform an in-place conversion to int or an int subword. | |
617 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
618 Address vmarg = __ argument_address(O0_argslot); | |
619 Address value; | |
620 bool value_left_justified = false; | |
621 | |
622 switch (ek) { | |
623 case _adapter_opt_i2i: | |
624 case _adapter_opt_l2i: | |
625 __ unimplemented(entry_name(ek)); | |
626 value = vmarg; | |
627 break; | |
628 case _adapter_opt_unboxi: | |
629 { | |
630 // Load the value up from the heap. | |
631 __ ld_ptr(vmarg, O1_scratch); | |
632 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
633 #ifdef ASSERT | |
634 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
635 if (is_subword_type(BasicType(bt))) | |
636 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
637 } | |
638 #endif | |
639 __ null_check(O1_scratch, value_offset); | |
640 value = Address(O1_scratch, value_offset); | |
641 #ifdef _BIG_ENDIAN | |
642 // Values stored in objects are packed. | |
643 value_left_justified = true; | |
644 #endif | |
645 } | |
646 break; | |
647 default: | |
648 ShouldNotReachHere(); | |
649 } | |
650 | |
651 // This check is required on _BIG_ENDIAN | |
652 Register G5_vminfo = G5_index; | |
653 __ ldsw(G3_amh_conversion, G5_vminfo); | |
654 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
655 | |
656 // Original 32-bit vmdata word must be of this form: | |
657 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
658 __ lduw(value, O1_scratch); | |
659 if (!value_left_justified) | |
660 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
661 Label zero_extend, done; | |
662 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
663 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
664 __ delayed()->nop(); | |
665 | |
666 // this path is taken for int->byte, int->short | |
667 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
668 __ ba(false, done); | |
669 __ delayed()->nop(); | |
670 | |
671 __ bind(zero_extend); | |
672 // this is taken for int->char | |
673 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
674 | |
675 __ bind(done); | |
676 __ st(O1_scratch, vmarg); | |
677 | |
678 // Get the new MH: | |
679 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
680 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
681 } | |
682 break; | |
683 | |
684 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
685 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
686 { | |
687 // Perform an in-place int-to-long or ref-to-long conversion. | |
688 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
689 | |
690 // On big-endian machine we duplicate the slot and store the MSW | |
691 // in the first slot. | |
692 __ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot); | |
693 | |
694 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
695 | |
696 Address arg_lsw(O0_argslot, 0); | |
1506 | 697 Address arg_msw(O0_argslot, -Interpreter::stackElementSize); |
1503 | 698 |
699 switch (ek) { | |
700 case _adapter_opt_i2l: | |
701 { | |
702 __ ldsw(arg_lsw, O2_scratch); // Load LSW | |
703 #ifndef _LP64 | |
704 __ signx(O2_scratch, O3_scratch); // Sign extend | |
705 #endif | |
706 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 | |
707 } | |
708 break; | |
709 case _adapter_opt_unboxl: | |
710 { | |
711 // Load the value up from the heap. | |
712 __ ld_ptr(arg_lsw, O1_scratch); | |
713 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
714 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
715 __ null_check(O1_scratch, value_offset); | |
716 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
717 __ st_long(O2_scratch, arg_msw); | |
718 } | |
719 break; | |
720 default: | |
721 ShouldNotReachHere(); | |
722 } | |
723 | |
724 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
725 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
726 } | |
727 break; | |
728 | |
729 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
730 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
731 { | |
732 // perform an in-place floating primitive conversion | |
733 __ unimplemented(entry_name(ek)); | |
734 } | |
735 break; | |
736 | |
737 case _adapter_prim_to_ref: | |
738 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
739 break; | |
740 | |
741 case _adapter_swap_args: | |
742 case _adapter_rot_args: | |
743 // handled completely by optimized cases | |
744 __ stop("init_AdapterMethodHandle should not issue this"); | |
745 break; | |
746 | |
747 case _adapter_opt_swap_1: | |
748 case _adapter_opt_swap_2: | |
749 case _adapter_opt_rot_1_up: | |
750 case _adapter_opt_rot_1_down: | |
751 case _adapter_opt_rot_2_up: | |
752 case _adapter_opt_rot_2_down: | |
753 { | |
754 int swap_bytes = 0, rotate = 0; | |
755 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); | |
756 | |
757 // 'argslot' is the position of the first argument to swap. | |
758 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
759 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
760 | |
761 // 'vminfo' is the second. | |
762 Register O1_destslot = O1_scratch; | |
763 __ ldsw(G3_amh_conversion, O1_destslot); | |
764 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
765 __ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot); | |
766 __ add(Gargs, __ argument_offset(O1_destslot), O1_destslot); | |
767 | |
768 if (!rotate) { | |
769 for (int i = 0; i < swap_bytes; i += wordSize) { | |
770 __ ld_ptr(Address(O0_argslot, i), O2_scratch); | |
771 __ ld_ptr(Address(O1_destslot, i), O3_scratch); | |
772 __ st_ptr(O3_scratch, Address(O0_argslot, i)); | |
773 __ st_ptr(O2_scratch, Address(O1_destslot, i)); | |
774 } | |
775 } else { | |
776 // Save the first chunk, which is going to get overwritten. | |
777 switch (swap_bytes) { | |
778 case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break; | |
779 case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru | |
780 case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break; | |
781 default: ShouldNotReachHere(); | |
782 } | |
783 | |
784 if (rotate > 0) { | |
785 // Rorate upward. | |
786 __ sub(O0_argslot, swap_bytes, O0_argslot); | |
787 #if ASSERT | |
788 { | |
789 // Verify that argslot > destslot, by at least swap_bytes. | |
790 Label L_ok; | |
791 __ cmp(O0_argslot, O1_destslot); | |
792 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok); | |
793 __ delayed()->nop(); | |
794 __ stop("source must be above destination (upward rotation)"); | |
795 __ bind(L_ok); | |
796 } | |
797 #endif | |
798 // Work argslot down to destslot, copying contiguous data upwards. | |
799 // Pseudo-code: | |
800 // argslot = src_addr - swap_bytes | |
801 // destslot = dest_addr | |
802 // while (argslot >= destslot) { | |
803 // *(argslot + swap_bytes) = *(argslot + 0); | |
804 // argslot--; | |
805 // } | |
806 Label loop; | |
807 __ bind(loop); | |
808 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
809 __ st_ptr(G5_index, Address(O0_argslot, swap_bytes)); | |
810 __ sub(O0_argslot, wordSize, O0_argslot); | |
811 __ cmp(O0_argslot, O1_destslot); | |
812 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop); | |
813 __ delayed()->nop(); // FILLME | |
814 } else { | |
815 __ add(O0_argslot, swap_bytes, O0_argslot); | |
816 #if ASSERT | |
817 { | |
818 // Verify that argslot < destslot, by at least swap_bytes. | |
819 Label L_ok; | |
820 __ cmp(O0_argslot, O1_destslot); | |
821 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
822 __ delayed()->nop(); | |
823 __ stop("source must be above destination (upward rotation)"); | |
824 __ bind(L_ok); | |
825 } | |
826 #endif | |
827 // Work argslot up to destslot, copying contiguous data downwards. | |
828 // Pseudo-code: | |
829 // argslot = src_addr + swap_bytes | |
830 // destslot = dest_addr | |
831 // while (argslot >= destslot) { | |
832 // *(argslot - swap_bytes) = *(argslot + 0); | |
833 // argslot++; | |
834 // } | |
835 Label loop; | |
836 __ bind(loop); | |
837 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
838 __ st_ptr(G5_index, Address(O0_argslot, -swap_bytes)); | |
839 __ add(O0_argslot, wordSize, O0_argslot); | |
840 __ cmp(O0_argslot, O1_destslot); | |
841 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop); | |
842 __ delayed()->nop(); // FILLME | |
843 } | |
844 | |
845 // Store the original first chunk into the destination slot, now free. | |
846 switch (swap_bytes) { | |
847 case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break; | |
848 case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru | |
849 case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break; | |
850 default: ShouldNotReachHere(); | |
851 } | |
852 } | |
853 | |
854 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
855 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
856 } | |
857 break; | |
858 | |
859 case _adapter_dup_args: | |
860 { | |
861 // 'argslot' is the position of the first argument to duplicate. | |
862 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
863 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
864 | |
865 // 'stack_move' is negative number of words to duplicate. | |
866 Register G5_stack_move = G5_index; | |
867 __ ldsw(G3_amh_conversion, G5_stack_move); | |
868 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
869 | |
870 // Remember the old Gargs (argslot[0]). | |
871 Register O1_oldarg = O1_scratch; | |
872 __ mov(Gargs, O1_oldarg); | |
873 | |
874 // Move Gargs down to make room for dups. | |
875 __ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move); | |
876 __ add(Gargs, G5_stack_move, Gargs); | |
877 | |
878 // Compute the new Gargs (argslot[0]). | |
879 Register O2_newarg = O2_scratch; | |
880 __ mov(Gargs, O2_newarg); | |
881 | |
882 // Copy from oldarg[0...] down to newarg[0...] | |
883 // Pseude-code: | |
884 // O1_oldarg = old-Gargs | |
885 // O2_newarg = new-Gargs | |
886 // O0_argslot = argslot | |
887 // while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++ | |
888 Label loop; | |
889 __ bind(loop); | |
890 __ ld_ptr(Address(O0_argslot, 0), O3_scratch); | |
891 __ st_ptr(O3_scratch, Address(O2_newarg, 0)); | |
892 __ add(O0_argslot, wordSize, O0_argslot); | |
893 __ add(O2_newarg, wordSize, O2_newarg); | |
894 __ cmp(O2_newarg, O1_oldarg); | |
895 __ brx(Assembler::less, false, Assembler::pt, loop); | |
896 __ delayed()->nop(); // FILLME | |
897 | |
898 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
899 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
900 } | |
901 break; | |
902 | |
903 case _adapter_drop_args: | |
904 { | |
905 // 'argslot' is the position of the first argument to nuke. | |
906 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
907 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
908 | |
909 // 'stack_move' is number of words to drop. | |
910 Register G5_stack_move = G5_index; | |
911 __ ldsw(G3_amh_conversion, G5_stack_move); | |
912 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
913 | |
914 remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch); | |
915 | |
916 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
917 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
918 } | |
919 break; | |
920 | |
921 case _adapter_collect_args: | |
922 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
923 break; | |
924 | |
925 case _adapter_spread_args: | |
926 // Handled completely by optimized cases. | |
927 __ stop("init_AdapterMethodHandle should not issue this"); | |
928 break; | |
929 | |
930 case _adapter_opt_spread_0: | |
931 case _adapter_opt_spread_1: | |
932 case _adapter_opt_spread_more: | |
933 { | |
934 // spread an array out into a group of arguments | |
935 __ unimplemented(entry_name(ek)); | |
936 } | |
937 break; | |
938 | |
939 case _adapter_flyby: | |
940 case _adapter_ricochet: | |
941 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
942 break; | |
943 | |
944 default: | |
945 ShouldNotReachHere(); | |
946 } | |
947 | |
948 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
949 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
950 | |
951 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
710 | 952 } |