Mercurial > hg > graal-compiler
comparison src/cpu/sparc/vm/methodHandles_sparc.cpp @ 1503:c640000b7cc1
6829193: JSR 292 needs to support SPARC
Summary: There are unimplemented portions of the hotspot code for method handles and invokedynamic specific to SPARC.
Reviewed-by: kvn, never, jrose
author | twisti |
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date | Thu, 29 Apr 2010 06:30:25 -0700 |
parents | e5b0439ef4ae |
children | 2338d41fbd81 |
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1399:90acda19b80f | 1503:c640000b7cc1 |
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1 /* | 1 /* |
2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. | 2 * Copyright 2008-2010 Sun Microsystems, Inc. All Rights Reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
27 | 27 |
28 #define __ _masm-> | 28 #define __ _masm-> |
29 | 29 |
30 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, | 30 address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, |
31 address interpreted_entry) { | 31 address interpreted_entry) { |
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. | |
32 __ align(wordSize); | 35 __ align(wordSize); |
33 address target = __ pc() + sizeof(Data); | 36 address target = __ pc() + sizeof(Data); |
34 while (__ pc() < target) { | 37 while (__ pc() < target) { |
35 __ nop(); | 38 __ nop(); |
36 __ align(wordSize); | 39 __ align(wordSize); |
57 } | 60 } |
58 | 61 |
59 | 62 |
60 // Code generation | 63 // Code generation |
61 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { | 64 address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { |
62 ShouldNotReachHere(); //NYI, 6815692 | 65 // I5_savedSP: sender SP (must preserve) |
63 return NULL; | 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; | |
64 } | 101 } |
65 | 102 |
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 | |
293 | |
294 //------------------------------------------------------------------------------ | |
295 // MethodHandles::generate_method_handle_stub | |
296 // | |
66 // Generate an "entry" field for a method handle. | 297 // Generate an "entry" field for a method handle. |
67 // This determines how the method handle will respond to calls. | 298 // This determines how the method handle will respond to calls. |
68 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { | 299 void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { |
69 ShouldNotReachHere(); //NYI, 6815692 | 300 // Here is the register state during an interpreted call, |
301 // as set up by generate_method_handle_interpreter_entry(): | |
302 // - G5: garbage temp (was MethodHandle.invoke methodOop, unused) | |
303 // - G3: receiver method handle | |
304 // - O5_savedSP: sender SP (must preserve) | |
305 | |
306 Register O0_argslot = O0; | |
307 Register O1_scratch = O1; | |
308 Register O2_scratch = O2; | |
309 Register O3_scratch = O3; | |
310 Register G5_index = G5; | |
311 | |
312 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); | |
313 | |
314 // Some handy addresses: | |
315 Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset())); | |
316 | |
317 Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes()); | |
318 | |
319 Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes()); | |
320 | |
321 Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes()); | |
322 Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes()); | |
323 | |
324 Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes()); | |
325 Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes()); | |
326 Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes()); | |
327 | |
328 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); | |
329 | |
330 if (have_entry(ek)) { | |
331 __ nop(); // empty stubs make SG sick | |
332 return; | |
333 } | |
334 | |
335 address interp_entry = __ pc(); | |
336 if (UseCompressedOops) __ unimplemented("UseCompressedOops"); | |
337 | |
338 #ifndef PRODUCT | |
339 if (TraceMethodHandles) { | |
340 // save: Gargs, O5_savedSP | |
341 __ save(SP, -16*wordSize, SP); | |
342 __ set((intptr_t) entry_name(ek), O0); | |
343 __ mov(G3_method_handle, O1); | |
344 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, trace_method_handle_stub)); | |
345 __ restore(SP, 16*wordSize, SP); | |
346 } | |
347 #endif // PRODUCT | |
348 | |
349 switch ((int) ek) { | |
350 case _raise_exception: | |
351 { | |
352 // Not a real MH entry, but rather shared code for raising an | |
353 // exception. Extra local arguments are passed in scratch | |
354 // registers, as required type in O3, failing object (or NULL) | |
355 // in O2, failing bytecode type in O1. | |
356 | |
357 __ mov(O5_savedSP, SP); // Cut the stack back to where the caller started. | |
358 | |
359 // Push arguments as if coming from the interpreter. | |
360 Register O0_scratch = O0_argslot; | |
361 int stackElementSize = Interpreter::stackElementSize(); | |
362 | |
363 // Make space on the stack for the arguments. | |
364 __ sub(SP, 4*stackElementSize, SP); | |
365 __ sub(Gargs, 3*stackElementSize, Gargs); | |
366 //__ sub(Lesp, 3*stackElementSize, Lesp); | |
367 | |
368 // void raiseException(int code, Object actual, Object required) | |
369 __ st( O1_scratch, Address(Gargs, 2*stackElementSize)); // code | |
370 __ st_ptr(O2_scratch, Address(Gargs, 1*stackElementSize)); // actual | |
371 __ st_ptr(O3_scratch, Address(Gargs, 0*stackElementSize)); // required | |
372 | |
373 Label no_method; | |
374 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method | |
375 __ set(AddressLiteral((address) &_raise_exception_method), G5_method); | |
376 __ ld_ptr(Address(G5_method, 0), G5_method); | |
377 __ tst(G5_method); | |
378 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
379 __ delayed()->nop(); | |
380 | |
381 int jobject_oop_offset = 0; | |
382 __ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method); | |
383 __ tst(G5_method); | |
384 __ brx(Assembler::zero, false, Assembler::pn, no_method); | |
385 __ delayed()->nop(); | |
386 | |
387 __ verify_oop(G5_method); | |
388 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
389 __ delayed()->nop(); | |
390 | |
391 // If we get here, the Java runtime did not do its job of creating the exception. | |
392 // Do something that is at least causes a valid throw from the interpreter. | |
393 __ bind(no_method); | |
394 __ unimplemented("_raise_exception no method"); | |
395 } | |
396 break; | |
397 | |
398 case _invokestatic_mh: | |
399 case _invokespecial_mh: | |
400 { | |
401 __ ld_ptr(G3_mh_vmtarget, G5_method); // target is a methodOop | |
402 __ verify_oop(G5_method); | |
403 // Same as TemplateTable::invokestatic or invokespecial, | |
404 // minus the CP setup and profiling: | |
405 if (ek == _invokespecial_mh) { | |
406 // Must load & check the first argument before entering the target method. | |
407 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
408 __ ld_ptr(__ argument_address(O0_argslot), G3_method_handle); | |
409 __ null_check(G3_method_handle); | |
410 __ verify_oop(G3_method_handle); | |
411 } | |
412 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
413 __ delayed()->nop(); | |
414 } | |
415 break; | |
416 | |
417 case _invokevirtual_mh: | |
418 { | |
419 // Same as TemplateTable::invokevirtual, | |
420 // minus the CP setup and profiling: | |
421 | |
422 // Pick out the vtable index and receiver offset from the MH, | |
423 // and then we can discard it: | |
424 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
425 __ ldsw(G3_dmh_vmindex, G5_index); | |
426 // Note: The verifier allows us to ignore G3_mh_vmtarget. | |
427 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
428 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
429 | |
430 // Get receiver klass: | |
431 Register O0_klass = O0_argslot; | |
432 __ load_klass(G3_method_handle, O0_klass); | |
433 __ verify_oop(O0_klass); | |
434 | |
435 // Get target methodOop & entry point: | |
436 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
437 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); | |
438 | |
439 __ sll_ptr(G5_index, LogBytesPerWord, G5_index); | |
440 __ add(O0_klass, G5_index, O0_klass); | |
441 Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes()); | |
442 __ ld_ptr(vtable_entry_addr, G5_method); | |
443 | |
444 __ verify_oop(G5_method); | |
445 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
446 __ delayed()->nop(); | |
447 } | |
448 break; | |
449 | |
450 case _invokeinterface_mh: | |
451 { | |
452 // Same as TemplateTable::invokeinterface, | |
453 // minus the CP setup and profiling: | |
454 __ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch); | |
455 Register O1_intf = O1_scratch; | |
456 __ ld_ptr(G3_mh_vmtarget, O1_intf); | |
457 __ ldsw(G3_dmh_vmindex, G5_index); | |
458 __ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle); | |
459 __ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes()); | |
460 | |
461 // Get receiver klass: | |
462 Register O0_klass = O0_argslot; | |
463 __ load_klass(G3_method_handle, O0_klass); | |
464 __ verify_oop(O0_klass); | |
465 | |
466 // Get interface: | |
467 Label no_such_interface; | |
468 __ verify_oop(O1_intf); | |
469 __ lookup_interface_method(O0_klass, O1_intf, | |
470 // Note: next two args must be the same: | |
471 G5_index, G5_method, | |
472 O2_scratch, | |
473 O3_scratch, | |
474 no_such_interface); | |
475 | |
476 __ verify_oop(G5_method); | |
477 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
478 __ delayed()->nop(); | |
479 | |
480 __ bind(no_such_interface); | |
481 // Throw an exception. | |
482 // For historical reasons, it will be IncompatibleClassChangeError. | |
483 __ unimplemented("not tested yet"); | |
484 __ ld_ptr(Address(O1_intf, java_mirror_offset), O3_scratch); // required interface | |
485 __ mov(O0_klass, O2_scratch); // bad receiver | |
486 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
487 __ delayed()->mov(Bytecodes::_invokeinterface, O1_scratch); // who is complaining? | |
488 } | |
489 break; | |
490 | |
491 case _bound_ref_mh: | |
492 case _bound_int_mh: | |
493 case _bound_long_mh: | |
494 case _bound_ref_direct_mh: | |
495 case _bound_int_direct_mh: | |
496 case _bound_long_direct_mh: | |
497 { | |
498 const bool direct_to_method = (ek >= _bound_ref_direct_mh); | |
499 BasicType arg_type = T_ILLEGAL; | |
500 int arg_mask = _INSERT_NO_MASK; | |
501 int arg_slots = -1; | |
502 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); | |
503 | |
504 // Make room for the new argument: | |
505 __ ldsw(G3_bmh_vmargslot, O0_argslot); | |
506 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
507 | |
508 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
509 | |
510 // Store bound argument into the new stack slot: | |
511 __ ld_ptr(G3_bmh_argument, O1_scratch); | |
512 if (arg_type == T_OBJECT) { | |
513 __ st_ptr(O1_scratch, Address(O0_argslot, 0)); | |
514 } else { | |
515 Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type)); | |
516 __ load_sized_value(prim_value_addr, O2_scratch, type2aelembytes(arg_type), is_signed_subword_type(arg_type)); | |
517 if (arg_slots == 2) { | |
518 __ unimplemented("not yet tested"); | |
519 #ifndef _LP64 | |
520 __ signx(O2_scratch, O3_scratch); // Sign extend | |
521 #endif | |
522 __ st_long(O2_scratch, Address(O0_argslot, 0)); // Uses O2/O3 on !_LP64 | |
523 } else { | |
524 __ st_ptr( O2_scratch, Address(O0_argslot, 0)); | |
525 } | |
526 } | |
527 | |
528 if (direct_to_method) { | |
529 __ ld_ptr(G3_mh_vmtarget, G5_method); // target is a methodOop | |
530 __ verify_oop(G5_method); | |
531 __ jump_indirect_to(G5_method_fie, O1_scratch); | |
532 __ delayed()->nop(); | |
533 } else { | |
534 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); // target is a methodOop | |
535 __ verify_oop(G3_method_handle); | |
536 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
537 } | |
538 } | |
539 break; | |
540 | |
541 case _adapter_retype_only: | |
542 case _adapter_retype_raw: | |
543 // Immediately jump to the next MH layer: | |
544 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
545 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
546 // This is OK when all parameter types widen. | |
547 // It is also OK when a return type narrows. | |
548 break; | |
549 | |
550 case _adapter_check_cast: | |
551 { | |
552 // Temps: | |
553 Register G5_klass = G5_index; // Interesting AMH data. | |
554 | |
555 // Check a reference argument before jumping to the next layer of MH: | |
556 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
557 Address vmarg = __ argument_address(O0_argslot); | |
558 | |
559 // What class are we casting to? | |
560 __ ld_ptr(G3_amh_argument, G5_klass); // This is a Class object! | |
561 __ ld_ptr(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass); | |
562 | |
563 Label done; | |
564 __ ld_ptr(vmarg, O1_scratch); | |
565 __ tst(O1_scratch); | |
566 __ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null. | |
567 __ delayed()->nop(); | |
568 __ load_klass(O1_scratch, O1_scratch); | |
569 | |
570 // Live at this point: | |
571 // - G5_klass : klass required by the target method | |
572 // - O1_scratch : argument klass to test | |
573 // - G3_method_handle: adapter method handle | |
574 __ check_klass_subtype(O1_scratch, G5_klass, O0_argslot, O2_scratch, done); | |
575 | |
576 // If we get here, the type check failed! | |
577 __ ldsw(G3_amh_vmargslot, O0_argslot); // reload argslot field | |
578 __ ld_ptr(G3_amh_argument, O3_scratch); // required class | |
579 __ ld_ptr(vmarg, O2_scratch); // bad object | |
580 __ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot); | |
581 __ delayed()->mov(Bytecodes::_checkcast, O1_scratch); // who is complaining? | |
582 | |
583 __ bind(done); | |
584 // Get the new MH: | |
585 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
586 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
587 } | |
588 break; | |
589 | |
590 case _adapter_prim_to_prim: | |
591 case _adapter_ref_to_prim: | |
592 // Handled completely by optimized cases. | |
593 __ stop("init_AdapterMethodHandle should not issue this"); | |
594 break; | |
595 | |
596 case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim | |
597 //case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim | |
598 case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim | |
599 case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim | |
600 { | |
601 // Perform an in-place conversion to int or an int subword. | |
602 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
603 Address vmarg = __ argument_address(O0_argslot); | |
604 Address value; | |
605 bool value_left_justified = false; | |
606 | |
607 switch (ek) { | |
608 case _adapter_opt_i2i: | |
609 case _adapter_opt_l2i: | |
610 __ unimplemented(entry_name(ek)); | |
611 value = vmarg; | |
612 break; | |
613 case _adapter_opt_unboxi: | |
614 { | |
615 // Load the value up from the heap. | |
616 __ ld_ptr(vmarg, O1_scratch); | |
617 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); | |
618 #ifdef ASSERT | |
619 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { | |
620 if (is_subword_type(BasicType(bt))) | |
621 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); | |
622 } | |
623 #endif | |
624 __ null_check(O1_scratch, value_offset); | |
625 value = Address(O1_scratch, value_offset); | |
626 #ifdef _BIG_ENDIAN | |
627 // Values stored in objects are packed. | |
628 value_left_justified = true; | |
629 #endif | |
630 } | |
631 break; | |
632 default: | |
633 ShouldNotReachHere(); | |
634 } | |
635 | |
636 // This check is required on _BIG_ENDIAN | |
637 Register G5_vminfo = G5_index; | |
638 __ ldsw(G3_amh_conversion, G5_vminfo); | |
639 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
640 | |
641 // Original 32-bit vmdata word must be of this form: | |
642 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | | |
643 __ lduw(value, O1_scratch); | |
644 if (!value_left_justified) | |
645 __ sll(O1_scratch, G5_vminfo, O1_scratch); | |
646 Label zero_extend, done; | |
647 __ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo); | |
648 __ br(Assembler::zero, false, Assembler::pn, zero_extend); | |
649 __ delayed()->nop(); | |
650 | |
651 // this path is taken for int->byte, int->short | |
652 __ sra(O1_scratch, G5_vminfo, O1_scratch); | |
653 __ ba(false, done); | |
654 __ delayed()->nop(); | |
655 | |
656 __ bind(zero_extend); | |
657 // this is taken for int->char | |
658 __ srl(O1_scratch, G5_vminfo, O1_scratch); | |
659 | |
660 __ bind(done); | |
661 __ st(O1_scratch, vmarg); | |
662 | |
663 // Get the new MH: | |
664 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
665 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
666 } | |
667 break; | |
668 | |
669 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim | |
670 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim | |
671 { | |
672 // Perform an in-place int-to-long or ref-to-long conversion. | |
673 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
674 | |
675 // On big-endian machine we duplicate the slot and store the MSW | |
676 // in the first slot. | |
677 __ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot); | |
678 | |
679 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index); | |
680 | |
681 Address arg_lsw(O0_argslot, 0); | |
682 Address arg_msw(O0_argslot, -Interpreter::stackElementSize()); | |
683 | |
684 switch (ek) { | |
685 case _adapter_opt_i2l: | |
686 { | |
687 __ ldsw(arg_lsw, O2_scratch); // Load LSW | |
688 #ifndef _LP64 | |
689 __ signx(O2_scratch, O3_scratch); // Sign extend | |
690 #endif | |
691 __ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64 | |
692 } | |
693 break; | |
694 case _adapter_opt_unboxl: | |
695 { | |
696 // Load the value up from the heap. | |
697 __ ld_ptr(arg_lsw, O1_scratch); | |
698 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); | |
699 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); | |
700 __ null_check(O1_scratch, value_offset); | |
701 __ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64 | |
702 __ st_long(O2_scratch, arg_msw); | |
703 } | |
704 break; | |
705 default: | |
706 ShouldNotReachHere(); | |
707 } | |
708 | |
709 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
710 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
711 } | |
712 break; | |
713 | |
714 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim | |
715 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim | |
716 { | |
717 // perform an in-place floating primitive conversion | |
718 __ unimplemented(entry_name(ek)); | |
719 } | |
720 break; | |
721 | |
722 case _adapter_prim_to_ref: | |
723 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
724 break; | |
725 | |
726 case _adapter_swap_args: | |
727 case _adapter_rot_args: | |
728 // handled completely by optimized cases | |
729 __ stop("init_AdapterMethodHandle should not issue this"); | |
730 break; | |
731 | |
732 case _adapter_opt_swap_1: | |
733 case _adapter_opt_swap_2: | |
734 case _adapter_opt_rot_1_up: | |
735 case _adapter_opt_rot_1_down: | |
736 case _adapter_opt_rot_2_up: | |
737 case _adapter_opt_rot_2_down: | |
738 { | |
739 int swap_bytes = 0, rotate = 0; | |
740 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); | |
741 | |
742 // 'argslot' is the position of the first argument to swap. | |
743 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
744 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
745 | |
746 // 'vminfo' is the second. | |
747 Register O1_destslot = O1_scratch; | |
748 __ ldsw(G3_amh_conversion, O1_destslot); | |
749 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); | |
750 __ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot); | |
751 __ add(Gargs, __ argument_offset(O1_destslot), O1_destslot); | |
752 | |
753 if (!rotate) { | |
754 for (int i = 0; i < swap_bytes; i += wordSize) { | |
755 __ ld_ptr(Address(O0_argslot, i), O2_scratch); | |
756 __ ld_ptr(Address(O1_destslot, i), O3_scratch); | |
757 __ st_ptr(O3_scratch, Address(O0_argslot, i)); | |
758 __ st_ptr(O2_scratch, Address(O1_destslot, i)); | |
759 } | |
760 } else { | |
761 // Save the first chunk, which is going to get overwritten. | |
762 switch (swap_bytes) { | |
763 case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break; | |
764 case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru | |
765 case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break; | |
766 default: ShouldNotReachHere(); | |
767 } | |
768 | |
769 if (rotate > 0) { | |
770 // Rorate upward. | |
771 __ sub(O0_argslot, swap_bytes, O0_argslot); | |
772 #if ASSERT | |
773 { | |
774 // Verify that argslot > destslot, by at least swap_bytes. | |
775 Label L_ok; | |
776 __ cmp(O0_argslot, O1_destslot); | |
777 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok); | |
778 __ delayed()->nop(); | |
779 __ stop("source must be above destination (upward rotation)"); | |
780 __ bind(L_ok); | |
781 } | |
782 #endif | |
783 // Work argslot down to destslot, copying contiguous data upwards. | |
784 // Pseudo-code: | |
785 // argslot = src_addr - swap_bytes | |
786 // destslot = dest_addr | |
787 // while (argslot >= destslot) { | |
788 // *(argslot + swap_bytes) = *(argslot + 0); | |
789 // argslot--; | |
790 // } | |
791 Label loop; | |
792 __ bind(loop); | |
793 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
794 __ st_ptr(G5_index, Address(O0_argslot, swap_bytes)); | |
795 __ sub(O0_argslot, wordSize, O0_argslot); | |
796 __ cmp(O0_argslot, O1_destslot); | |
797 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop); | |
798 __ delayed()->nop(); // FILLME | |
799 } else { | |
800 __ add(O0_argslot, swap_bytes, O0_argslot); | |
801 #if ASSERT | |
802 { | |
803 // Verify that argslot < destslot, by at least swap_bytes. | |
804 Label L_ok; | |
805 __ cmp(O0_argslot, O1_destslot); | |
806 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok); | |
807 __ delayed()->nop(); | |
808 __ stop("source must be above destination (upward rotation)"); | |
809 __ bind(L_ok); | |
810 } | |
811 #endif | |
812 // Work argslot up to destslot, copying contiguous data downwards. | |
813 // Pseudo-code: | |
814 // argslot = src_addr + swap_bytes | |
815 // destslot = dest_addr | |
816 // while (argslot >= destslot) { | |
817 // *(argslot - swap_bytes) = *(argslot + 0); | |
818 // argslot++; | |
819 // } | |
820 Label loop; | |
821 __ bind(loop); | |
822 __ ld_ptr(Address(O0_argslot, 0), G5_index); | |
823 __ st_ptr(G5_index, Address(O0_argslot, -swap_bytes)); | |
824 __ add(O0_argslot, wordSize, O0_argslot); | |
825 __ cmp(O0_argslot, O1_destslot); | |
826 __ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop); | |
827 __ delayed()->nop(); // FILLME | |
828 } | |
829 | |
830 // Store the original first chunk into the destination slot, now free. | |
831 switch (swap_bytes) { | |
832 case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break; | |
833 case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru | |
834 case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break; | |
835 default: ShouldNotReachHere(); | |
836 } | |
837 } | |
838 | |
839 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
840 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
841 } | |
842 break; | |
843 | |
844 case _adapter_dup_args: | |
845 { | |
846 // 'argslot' is the position of the first argument to duplicate. | |
847 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
848 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
849 | |
850 // 'stack_move' is negative number of words to duplicate. | |
851 Register G5_stack_move = G5_index; | |
852 __ ldsw(G3_amh_conversion, G5_stack_move); | |
853 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
854 | |
855 // Remember the old Gargs (argslot[0]). | |
856 Register O1_oldarg = O1_scratch; | |
857 __ mov(Gargs, O1_oldarg); | |
858 | |
859 // Move Gargs down to make room for dups. | |
860 __ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move); | |
861 __ add(Gargs, G5_stack_move, Gargs); | |
862 | |
863 // Compute the new Gargs (argslot[0]). | |
864 Register O2_newarg = O2_scratch; | |
865 __ mov(Gargs, O2_newarg); | |
866 | |
867 // Copy from oldarg[0...] down to newarg[0...] | |
868 // Pseude-code: | |
869 // O1_oldarg = old-Gargs | |
870 // O2_newarg = new-Gargs | |
871 // O0_argslot = argslot | |
872 // while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++ | |
873 Label loop; | |
874 __ bind(loop); | |
875 __ ld_ptr(Address(O0_argslot, 0), O3_scratch); | |
876 __ st_ptr(O3_scratch, Address(O2_newarg, 0)); | |
877 __ add(O0_argslot, wordSize, O0_argslot); | |
878 __ add(O2_newarg, wordSize, O2_newarg); | |
879 __ cmp(O2_newarg, O1_oldarg); | |
880 __ brx(Assembler::less, false, Assembler::pt, loop); | |
881 __ delayed()->nop(); // FILLME | |
882 | |
883 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
884 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
885 } | |
886 break; | |
887 | |
888 case _adapter_drop_args: | |
889 { | |
890 // 'argslot' is the position of the first argument to nuke. | |
891 __ ldsw(G3_amh_vmargslot, O0_argslot); | |
892 __ add(Gargs, __ argument_offset(O0_argslot), O0_argslot); | |
893 | |
894 // 'stack_move' is number of words to drop. | |
895 Register G5_stack_move = G5_index; | |
896 __ ldsw(G3_amh_conversion, G5_stack_move); | |
897 __ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move); | |
898 | |
899 remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch); | |
900 | |
901 __ ld_ptr(G3_mh_vmtarget, G3_method_handle); | |
902 __ jump_to_method_handle_entry(G3_method_handle, O1_scratch); | |
903 } | |
904 break; | |
905 | |
906 case _adapter_collect_args: | |
907 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
908 break; | |
909 | |
910 case _adapter_spread_args: | |
911 // Handled completely by optimized cases. | |
912 __ stop("init_AdapterMethodHandle should not issue this"); | |
913 break; | |
914 | |
915 case _adapter_opt_spread_0: | |
916 case _adapter_opt_spread_1: | |
917 case _adapter_opt_spread_more: | |
918 { | |
919 // spread an array out into a group of arguments | |
920 __ unimplemented(entry_name(ek)); | |
921 } | |
922 break; | |
923 | |
924 case _adapter_flyby: | |
925 case _adapter_ricochet: | |
926 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
927 break; | |
928 | |
929 default: | |
930 ShouldNotReachHere(); | |
931 } | |
932 | |
933 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); | |
934 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI | |
935 | |
936 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); | |
70 } | 937 } |