methodHandles_x86.cpp revision 1472:c18cbe5936b8
1/* 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25#include "incls/_precompiled.incl" 26#include "incls/_methodHandles_x86.cpp.incl" 27 28#define __ _masm-> 29 30address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm, 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. 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 50MethodHandleEntry* 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#ifdef ASSERT 63static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, 64 const char* error_message) { 65 // Verify that argslot lies within (rsp, rbp]. 66 Label L_ok, L_bad; 67 __ cmpptr(argslot_reg, rbp); 68 __ jccb(Assembler::above, L_bad); 69 __ cmpptr(rsp, argslot_reg); 70 __ jccb(Assembler::below, L_ok); 71 __ bind(L_bad); 72 __ stop(error_message); 73 __ bind(L_ok); 74} 75#endif 76 77 78// Code generation 79address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) { 80 // rbx: methodOop 81 // rcx: receiver method handle (must load from sp[MethodTypeForm.vmslots]) 82 // rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) 83 // rdx: garbage temp, blown away 84 85 Register rbx_method = rbx; 86 Register rcx_recv = rcx; 87 Register rax_mtype = rax; 88 Register rdx_temp = rdx; 89 90 // emit WrongMethodType path first, to enable jccb back-branch from main path 91 Label wrong_method_type; 92 __ bind(wrong_method_type); 93 __ push(rax_mtype); // required mtype 94 __ push(rcx_recv); // bad mh (1st stacked argument) 95 __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); 96 97 // here's where control starts out: 98 __ align(CodeEntryAlignment); 99 address entry_point = __ pc(); 100 101 // fetch the MethodType from the method handle into rax (the 'check' register) 102 { 103 Register tem = rbx_method; 104 for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) { 105 __ movptr(rax_mtype, Address(tem, *pchase)); 106 tem = rax_mtype; // in case there is another indirection 107 } 108 } 109 Register rbx_temp = rbx_method; // done with incoming methodOop 110 111 // given the MethodType, find out where the MH argument is buried 112 __ movptr(rdx_temp, Address(rax_mtype, 113 __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, rbx_temp))); 114 __ movl(rdx_temp, Address(rdx_temp, 115 __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, rbx_temp))); 116 __ movptr(rcx_recv, __ argument_address(rdx_temp)); 117 118 __ check_method_handle_type(rax_mtype, rcx_recv, rdx_temp, wrong_method_type); 119 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 120 121 return entry_point; 122} 123 124// Helper to insert argument slots into the stack. 125// arg_slots must be a multiple of stack_move_unit() and <= 0 126void MethodHandles::insert_arg_slots(MacroAssembler* _masm, 127 RegisterOrConstant arg_slots, 128 int arg_mask, 129 Register rax_argslot, 130 Register rbx_temp, Register rdx_temp, Register temp3_reg) { 131 assert(temp3_reg == noreg, "temp3 not required"); 132 assert_different_registers(rax_argslot, rbx_temp, rdx_temp, 133 (!arg_slots.is_register() ? rsp : arg_slots.as_register())); 134 135#ifdef ASSERT 136 verify_argslot(_masm, rax_argslot, "insertion point must fall within current frame"); 137 if (arg_slots.is_register()) { 138 Label L_ok, L_bad; 139 __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); 140 __ jccb(Assembler::greater, L_bad); 141 __ testl(arg_slots.as_register(), -stack_move_unit() - 1); 142 __ jccb(Assembler::zero, L_ok); 143 __ bind(L_bad); 144 __ stop("assert arg_slots <= 0 and clear low bits"); 145 __ bind(L_ok); 146 } else { 147 assert(arg_slots.as_constant() <= 0, ""); 148 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); 149 } 150#endif //ASSERT 151 152#ifdef _LP64 153 if (arg_slots.is_register()) { 154 // clean high bits of stack motion register (was loaded as an int) 155 __ movslq(arg_slots.as_register(), arg_slots.as_register()); 156 } 157#endif 158 159 // Make space on the stack for the inserted argument(s). 160 // Then pull down everything shallower than rax_argslot. 161 // The stacked return address gets pulled down with everything else. 162 // That is, copy [rsp, argslot) downward by -size words. In pseudo-code: 163 // rsp -= size; 164 // for (rdx = rsp + size; rdx < argslot; rdx++) 165 // rdx[-size] = rdx[0] 166 // argslot -= size; 167 __ mov(rdx_temp, rsp); // source pointer for copy 168 __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); 169 { 170 Label loop; 171 __ bind(loop); 172 // pull one word down each time through the loop 173 __ movptr(rbx_temp, Address(rdx_temp, 0)); 174 __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); 175 __ addptr(rdx_temp, wordSize); 176 __ cmpptr(rdx_temp, rax_argslot); 177 __ jccb(Assembler::less, loop); 178 } 179 180 // Now move the argslot down, to point to the opened-up space. 181 __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); 182} 183 184// Helper to remove argument slots from the stack. 185// arg_slots must be a multiple of stack_move_unit() and >= 0 186void MethodHandles::remove_arg_slots(MacroAssembler* _masm, 187 RegisterOrConstant arg_slots, 188 Register rax_argslot, 189 Register rbx_temp, Register rdx_temp, Register temp3_reg) { 190 assert(temp3_reg == noreg, "temp3 not required"); 191 assert_different_registers(rax_argslot, rbx_temp, rdx_temp, 192 (!arg_slots.is_register() ? rsp : arg_slots.as_register())); 193 194#ifdef ASSERT 195 // Verify that [argslot..argslot+size) lies within (rsp, rbp). 196 __ lea(rbx_temp, Address(rax_argslot, arg_slots, Address::times_ptr)); 197 verify_argslot(_masm, rbx_temp, "deleted argument(s) must fall within current frame"); 198 if (arg_slots.is_register()) { 199 Label L_ok, L_bad; 200 __ cmpptr(arg_slots.as_register(), (int32_t) NULL_WORD); 201 __ jccb(Assembler::less, L_bad); 202 __ testl(arg_slots.as_register(), -stack_move_unit() - 1); 203 __ jccb(Assembler::zero, L_ok); 204 __ bind(L_bad); 205 __ stop("assert arg_slots >= 0 and clear low bits"); 206 __ bind(L_ok); 207 } else { 208 assert(arg_slots.as_constant() >= 0, ""); 209 assert(arg_slots.as_constant() % -stack_move_unit() == 0, ""); 210 } 211#endif //ASSERT 212 213#ifdef _LP64 214 if (false) { // not needed, since register is positive 215 // clean high bits of stack motion register (was loaded as an int) 216 if (arg_slots.is_register()) 217 __ movslq(arg_slots.as_register(), arg_slots.as_register()); 218 } 219#endif 220 221 // Pull up everything shallower than rax_argslot. 222 // Then remove the excess space on the stack. 223 // The stacked return address gets pulled up with everything else. 224 // That is, copy [rsp, argslot) upward by size words. In pseudo-code: 225 // for (rdx = argslot-1; rdx >= rsp; --rdx) 226 // rdx[size] = rdx[0] 227 // argslot += size; 228 // rsp += size; 229 __ lea(rdx_temp, Address(rax_argslot, -wordSize)); // source pointer for copy 230 { 231 Label loop; 232 __ bind(loop); 233 // pull one word up each time through the loop 234 __ movptr(rbx_temp, Address(rdx_temp, 0)); 235 __ movptr(Address(rdx_temp, arg_slots, Address::times_ptr), rbx_temp); 236 __ addptr(rdx_temp, -wordSize); 237 __ cmpptr(rdx_temp, rsp); 238 __ jccb(Assembler::greaterEqual, loop); 239 } 240 241 // Now move the argslot up, to point to the just-copied block. 242 __ lea(rsp, Address(rsp, arg_slots, Address::times_ptr)); 243 // And adjust the argslot address to point at the deletion point. 244 __ lea(rax_argslot, Address(rax_argslot, arg_slots, Address::times_ptr)); 245} 246 247#ifndef PRODUCT 248extern "C" void print_method_handle(oop mh); 249void trace_method_handle_stub(const char* adaptername, 250 oop mh, 251 intptr_t* entry_sp, 252 intptr_t* saved_sp, 253 intptr_t* saved_bp) { 254 // called as a leaf from native code: do not block the JVM! 255 intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset]; 256 intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset]; 257 printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n", 258 adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp); 259 if (last_sp != saved_sp) 260 printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp); 261 if (Verbose) print_method_handle(mh); 262} 263#endif //PRODUCT 264 265// which conversion op types are implemented here? 266int MethodHandles::adapter_conversion_ops_supported_mask() { 267 return ((1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_ONLY) 268 |(1<<sun_dyn_AdapterMethodHandle::OP_RETYPE_RAW) 269 |(1<<sun_dyn_AdapterMethodHandle::OP_CHECK_CAST) 270 |(1<<sun_dyn_AdapterMethodHandle::OP_PRIM_TO_PRIM) 271 |(1<<sun_dyn_AdapterMethodHandle::OP_REF_TO_PRIM) 272 |(1<<sun_dyn_AdapterMethodHandle::OP_SWAP_ARGS) 273 |(1<<sun_dyn_AdapterMethodHandle::OP_ROT_ARGS) 274 |(1<<sun_dyn_AdapterMethodHandle::OP_DUP_ARGS) 275 |(1<<sun_dyn_AdapterMethodHandle::OP_DROP_ARGS) 276 //|(1<<sun_dyn_AdapterMethodHandle::OP_SPREAD_ARGS) //BUG! 277 ); 278 // FIXME: MethodHandlesTest gets a crash if we enable OP_SPREAD_ARGS. 279} 280 281// Generate an "entry" field for a method handle. 282// This determines how the method handle will respond to calls. 283void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) { 284 // Here is the register state during an interpreted call, 285 // as set up by generate_method_handle_interpreter_entry(): 286 // - rbx: garbage temp (was MethodHandle.invoke methodOop, unused) 287 // - rcx: receiver method handle 288 // - rax: method handle type (only used by the check_mtype entry point) 289 // - rsi/r13: sender SP (must preserve; see prepare_to_jump_from_interpreted) 290 // - rdx: garbage temp, can blow away 291 292 Register rcx_recv = rcx; 293 Register rax_argslot = rax; 294 Register rbx_temp = rbx; 295 Register rdx_temp = rdx; 296 297 // This guy is set up by prepare_to_jump_from_interpreted (from interpreted calls) 298 // and gen_c2i_adapter (from compiled calls): 299 Register saved_last_sp = LP64_ONLY(r13) NOT_LP64(rsi); 300 301 guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets"); 302 303 // some handy addresses 304 Address rbx_method_fie( rbx, methodOopDesc::from_interpreted_offset() ); 305 306 Address rcx_mh_vmtarget( rcx_recv, java_dyn_MethodHandle::vmtarget_offset_in_bytes() ); 307 Address rcx_dmh_vmindex( rcx_recv, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes() ); 308 309 Address rcx_bmh_vmargslot( rcx_recv, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes() ); 310 Address rcx_bmh_argument( rcx_recv, sun_dyn_BoundMethodHandle::argument_offset_in_bytes() ); 311 312 Address rcx_amh_vmargslot( rcx_recv, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes() ); 313 Address rcx_amh_argument( rcx_recv, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes() ); 314 Address rcx_amh_conversion( rcx_recv, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes() ); 315 Address vmarg; // __ argument_address(vmargslot) 316 317 const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes(); 318 319 if (have_entry(ek)) { 320 __ nop(); // empty stubs make SG sick 321 return; 322 } 323 324 address interp_entry = __ pc(); 325 if (UseCompressedOops) __ unimplemented("UseCompressedOops"); 326 327#ifndef PRODUCT 328 if (TraceMethodHandles) { 329 __ push(rax); __ push(rbx); __ push(rcx); __ push(rdx); __ push(rsi); __ push(rdi); 330 __ lea(rax, Address(rsp, wordSize*6)); // entry_sp 331 // arguments: 332 __ push(rbp); // interpreter frame pointer 333 __ push(rsi); // saved_sp 334 __ push(rax); // entry_sp 335 __ push(rcx); // mh 336 __ push(rcx); 337 __ movptr(Address(rsp, 0), (intptr_t)entry_name(ek)); 338 __ call_VM_leaf(CAST_FROM_FN_PTR(address, trace_method_handle_stub), 5); 339 __ pop(rdi); __ pop(rsi); __ pop(rdx); __ pop(rcx); __ pop(rbx); __ pop(rax); 340 } 341#endif //PRODUCT 342 343 switch ((int) ek) { 344 case _raise_exception: 345 { 346 // Not a real MH entry, but rather shared code for raising an exception. 347 // Extra local arguments are pushed on stack, as required type at TOS+8, 348 // failing object (or NULL) at TOS+4, failing bytecode type at TOS. 349 // Beyond those local arguments are the PC, of course. 350 Register rdx_code = rdx_temp; 351 Register rcx_fail = rcx_recv; 352 Register rax_want = rax_argslot; 353 Register rdi_pc = rdi; 354 __ pop(rdx_code); // TOS+0 355 __ pop(rcx_fail); // TOS+4 356 __ pop(rax_want); // TOS+8 357 __ pop(rdi_pc); // caller PC 358 359 __ mov(rsp, rsi); // cut the stack back to where the caller started 360 361 // Repush the arguments as if coming from the interpreter. 362 __ push(rdx_code); 363 __ push(rcx_fail); 364 __ push(rax_want); 365 366 Register rbx_method = rbx_temp; 367 Label no_method; 368 // FIXME: fill in _raise_exception_method with a suitable sun.dyn method 369 __ movptr(rbx_method, ExternalAddress((address) &_raise_exception_method)); 370 __ testptr(rbx_method, rbx_method); 371 __ jccb(Assembler::zero, no_method); 372 int jobject_oop_offset = 0; 373 __ movptr(rbx_method, Address(rbx_method, jobject_oop_offset)); // dereference the jobject 374 __ testptr(rbx_method, rbx_method); 375 __ jccb(Assembler::zero, no_method); 376 __ verify_oop(rbx_method); 377 __ push(rdi_pc); // and restore caller PC 378 __ jmp(rbx_method_fie); 379 380 // If we get here, the Java runtime did not do its job of creating the exception. 381 // Do something that is at least causes a valid throw from the interpreter. 382 __ bind(no_method); 383 __ pop(rax_want); 384 __ pop(rcx_fail); 385 __ push(rax_want); 386 __ push(rcx_fail); 387 __ jump(ExternalAddress(Interpreter::throw_WrongMethodType_entry())); 388 } 389 break; 390 391 case _invokestatic_mh: 392 case _invokespecial_mh: 393 { 394 Register rbx_method = rbx_temp; 395 __ movptr(rbx_method, rcx_mh_vmtarget); // target is a methodOop 396 __ verify_oop(rbx_method); 397 // same as TemplateTable::invokestatic or invokespecial, 398 // minus the CP setup and profiling: 399 if (ek == _invokespecial_mh) { 400 // Must load & check the first argument before entering the target method. 401 __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); 402 __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); 403 __ null_check(rcx_recv); 404 __ verify_oop(rcx_recv); 405 } 406 __ jmp(rbx_method_fie); 407 } 408 break; 409 410 case _invokevirtual_mh: 411 { 412 // same as TemplateTable::invokevirtual, 413 // minus the CP setup and profiling: 414 415 // pick out the vtable index and receiver offset from the MH, 416 // and then we can discard it: 417 __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); 418 Register rbx_index = rbx_temp; 419 __ movl(rbx_index, rcx_dmh_vmindex); 420 // Note: The verifier allows us to ignore rcx_mh_vmtarget. 421 __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); 422 __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); 423 424 // get receiver klass 425 Register rax_klass = rax_argslot; 426 __ load_klass(rax_klass, rcx_recv); 427 __ verify_oop(rax_klass); 428 429 // get target methodOop & entry point 430 const int base = instanceKlass::vtable_start_offset() * wordSize; 431 assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below"); 432 Address vtable_entry_addr(rax_klass, 433 rbx_index, Address::times_ptr, 434 base + vtableEntry::method_offset_in_bytes()); 435 Register rbx_method = rbx_temp; 436 __ movptr(rbx_method, vtable_entry_addr); 437 438 __ verify_oop(rbx_method); 439 __ jmp(rbx_method_fie); 440 } 441 break; 442 443 case _invokeinterface_mh: 444 { 445 // same as TemplateTable::invokeinterface, 446 // minus the CP setup and profiling: 447 448 // pick out the interface and itable index from the MH. 449 __ load_method_handle_vmslots(rax_argslot, rcx_recv, rdx_temp); 450 Register rdx_intf = rdx_temp; 451 Register rbx_index = rbx_temp; 452 __ movptr(rdx_intf, rcx_mh_vmtarget); 453 __ movl(rbx_index, rcx_dmh_vmindex); 454 __ movptr(rcx_recv, __ argument_address(rax_argslot, -1)); 455 __ null_check(rcx_recv, oopDesc::klass_offset_in_bytes()); 456 457 // get receiver klass 458 Register rax_klass = rax_argslot; 459 __ load_klass(rax_klass, rcx_recv); 460 __ verify_oop(rax_klass); 461 462 Register rdi_temp = rdi; 463 Register rbx_method = rbx_index; 464 465 // get interface klass 466 Label no_such_interface; 467 __ verify_oop(rdx_intf); 468 __ lookup_interface_method(rax_klass, rdx_intf, 469 // note: next two args must be the same: 470 rbx_index, rbx_method, 471 rdi_temp, 472 no_such_interface); 473 474 __ verify_oop(rbx_method); 475 __ jmp(rbx_method_fie); 476 __ hlt(); 477 478 __ bind(no_such_interface); 479 // Throw an exception. 480 // For historical reasons, it will be IncompatibleClassChangeError. 481 __ pushptr(Address(rdx_intf, java_mirror_offset)); // required interface 482 __ push(rcx_recv); // bad receiver 483 __ push((int)Bytecodes::_invokeinterface); // who is complaining? 484 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); 485 } 486 break; 487 488 case _bound_ref_mh: 489 case _bound_int_mh: 490 case _bound_long_mh: 491 case _bound_ref_direct_mh: 492 case _bound_int_direct_mh: 493 case _bound_long_direct_mh: 494 { 495 bool direct_to_method = (ek >= _bound_ref_direct_mh); 496 BasicType arg_type = T_ILLEGAL; 497 int arg_mask = _INSERT_NO_MASK; 498 int arg_slots = -1; 499 get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots); 500 501 // make room for the new argument: 502 __ movl(rax_argslot, rcx_bmh_vmargslot); 503 __ lea(rax_argslot, __ argument_address(rax_argslot)); 504 insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, 505 rax_argslot, rbx_temp, rdx_temp); 506 507 // store bound argument into the new stack slot: 508 __ movptr(rbx_temp, rcx_bmh_argument); 509 Address prim_value_addr(rbx_temp, java_lang_boxing_object::value_offset_in_bytes(arg_type)); 510 if (arg_type == T_OBJECT) { 511 __ movptr(Address(rax_argslot, 0), rbx_temp); 512 } else { 513 __ load_sized_value(rdx_temp, prim_value_addr, 514 type2aelembytes(arg_type), is_signed_subword_type(arg_type)); 515 __ movptr(Address(rax_argslot, 0), rdx_temp); 516#ifndef _LP64 517 if (arg_slots == 2) { 518 __ movl(rdx_temp, prim_value_addr.plus_disp(wordSize)); 519 __ movl(Address(rax_argslot, Interpreter::stackElementSize), rdx_temp); 520 } 521#endif //_LP64 522 } 523 524 if (direct_to_method) { 525 Register rbx_method = rbx_temp; 526 __ movptr(rbx_method, rcx_mh_vmtarget); 527 __ verify_oop(rbx_method); 528 __ jmp(rbx_method_fie); 529 } else { 530 __ movptr(rcx_recv, rcx_mh_vmtarget); 531 __ verify_oop(rcx_recv); 532 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 533 } 534 } 535 break; 536 537 case _adapter_retype_only: 538 case _adapter_retype_raw: 539 // immediately jump to the next MH layer: 540 __ movptr(rcx_recv, rcx_mh_vmtarget); 541 __ verify_oop(rcx_recv); 542 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 543 // This is OK when all parameter types widen. 544 // It is also OK when a return type narrows. 545 break; 546 547 case _adapter_check_cast: 548 { 549 // temps: 550 Register rbx_klass = rbx_temp; // interesting AMH data 551 552 // check a reference argument before jumping to the next layer of MH: 553 __ movl(rax_argslot, rcx_amh_vmargslot); 554 vmarg = __ argument_address(rax_argslot); 555 556 // What class are we casting to? 557 __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! 558 __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); 559 560 Label done; 561 __ movptr(rdx_temp, vmarg); 562 __ testptr(rdx_temp, rdx_temp); 563 __ jccb(Assembler::zero, done); // no cast if null 564 __ load_klass(rdx_temp, rdx_temp); 565 566 // live at this point: 567 // - rbx_klass: klass required by the target method 568 // - rdx_temp: argument klass to test 569 // - rcx_recv: adapter method handle 570 __ check_klass_subtype(rdx_temp, rbx_klass, rax_argslot, done); 571 572 // If we get here, the type check failed! 573 // Call the wrong_method_type stub, passing the failing argument type in rax. 574 Register rax_mtype = rax_argslot; 575 __ movl(rax_argslot, rcx_amh_vmargslot); // reload argslot field 576 __ movptr(rdx_temp, vmarg); 577 578 __ pushptr(rcx_amh_argument); // required class 579 __ push(rdx_temp); // bad object 580 __ push((int)Bytecodes::_checkcast); // who is complaining? 581 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); 582 583 __ bind(done); 584 // get the new MH: 585 __ movptr(rcx_recv, rcx_mh_vmtarget); 586 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 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 __ movl(rax_argslot, rcx_amh_vmargslot); 603 vmarg = __ argument_address(rax_argslot); 604 605 switch (ek) { 606 case _adapter_opt_i2i: 607 __ movl(rdx_temp, vmarg); 608 break; 609 case _adapter_opt_l2i: 610 { 611 // just delete the extra slot; on a little-endian machine we keep the first 612 __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); 613 remove_arg_slots(_masm, -stack_move_unit(), 614 rax_argslot, rbx_temp, rdx_temp); 615 vmarg = Address(rax_argslot, -Interpreter::stackElementSize); 616 __ movl(rdx_temp, vmarg); 617 } 618 break; 619 case _adapter_opt_unboxi: 620 { 621 // Load the value up from the heap. 622 __ movptr(rdx_temp, vmarg); 623 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT); 624#ifdef ASSERT 625 for (int bt = T_BOOLEAN; bt < T_INT; bt++) { 626 if (is_subword_type(BasicType(bt))) 627 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), ""); 628 } 629#endif 630 __ null_check(rdx_temp, value_offset); 631 __ movl(rdx_temp, Address(rdx_temp, value_offset)); 632 // We load this as a word. Because we are little-endian, 633 // the low bits will be correct, but the high bits may need cleaning. 634 // The vminfo will guide us to clean those bits. 635 } 636 break; 637 default: 638 ShouldNotReachHere(); 639 } 640 641 // Do the requested conversion and store the value. 642 Register rbx_vminfo = rbx_temp; 643 __ movl(rbx_vminfo, rcx_amh_conversion); 644 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); 645 646 // get the new MH: 647 __ movptr(rcx_recv, rcx_mh_vmtarget); 648 // (now we are done with the old MH) 649 650 // original 32-bit vmdata word must be of this form: 651 // | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 | 652 __ xchgptr(rcx, rbx_vminfo); // free rcx for shifts 653 __ shll(rdx_temp /*, rcx*/); 654 Label zero_extend, done; 655 __ testl(rcx, CONV_VMINFO_SIGN_FLAG); 656 __ jccb(Assembler::zero, zero_extend); 657 658 // this path is taken for int->byte, int->short 659 __ sarl(rdx_temp /*, rcx*/); 660 __ jmpb(done); 661 662 __ bind(zero_extend); 663 // this is taken for int->char 664 __ shrl(rdx_temp /*, rcx*/); 665 666 __ bind(done); 667 __ movl(vmarg, rdx_temp); // Store the value. 668 __ xchgptr(rcx, rbx_vminfo); // restore rcx_recv 669 670 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 671 } 672 break; 673 674 case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim 675 case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim 676 { 677 // perform an in-place int-to-long or ref-to-long conversion 678 __ movl(rax_argslot, rcx_amh_vmargslot); 679 680 // on a little-endian machine we keep the first slot and add another after 681 __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); 682 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, 683 rax_argslot, rbx_temp, rdx_temp); 684 Address vmarg1(rax_argslot, -Interpreter::stackElementSize); 685 Address vmarg2 = vmarg1.plus_disp(Interpreter::stackElementSize); 686 687 switch (ek) { 688 case _adapter_opt_i2l: 689 { 690#ifdef _LP64 691 __ movslq(rdx_temp, vmarg1); // Load sign-extended 692 __ movq(vmarg1, rdx_temp); // Store into first slot 693#else 694 __ movl(rdx_temp, vmarg1); 695 __ sarl(rdx_temp, BitsPerInt - 1); // __ extend_sign() 696 __ movl(vmarg2, rdx_temp); // store second word 697#endif 698 } 699 break; 700 case _adapter_opt_unboxl: 701 { 702 // Load the value up from the heap. 703 __ movptr(rdx_temp, vmarg1); 704 int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG); 705 assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), ""); 706 __ null_check(rdx_temp, value_offset); 707#ifdef _LP64 708 __ movq(rbx_temp, Address(rdx_temp, value_offset)); 709 __ movq(vmarg1, rbx_temp); 710#else 711 __ movl(rbx_temp, Address(rdx_temp, value_offset + 0*BytesPerInt)); 712 __ movl(rdx_temp, Address(rdx_temp, value_offset + 1*BytesPerInt)); 713 __ movl(vmarg1, rbx_temp); 714 __ movl(vmarg2, rdx_temp); 715#endif 716 } 717 break; 718 default: 719 ShouldNotReachHere(); 720 } 721 722 __ movptr(rcx_recv, rcx_mh_vmtarget); 723 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 724 } 725 break; 726 727 case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim 728 case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim 729 { 730 // perform an in-place floating primitive conversion 731 __ movl(rax_argslot, rcx_amh_vmargslot); 732 __ lea(rax_argslot, __ argument_address(rax_argslot, 1)); 733 if (ek == _adapter_opt_f2d) { 734 insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, 735 rax_argslot, rbx_temp, rdx_temp); 736 } 737 Address vmarg(rax_argslot, -Interpreter::stackElementSize); 738 739#ifdef _LP64 740 if (ek == _adapter_opt_f2d) { 741 __ movflt(xmm0, vmarg); 742 __ cvtss2sd(xmm0, xmm0); 743 __ movdbl(vmarg, xmm0); 744 } else { 745 __ movdbl(xmm0, vmarg); 746 __ cvtsd2ss(xmm0, xmm0); 747 __ movflt(vmarg, xmm0); 748 } 749#else //_LP64 750 if (ek == _adapter_opt_f2d) { 751 __ fld_s(vmarg); // load float to ST0 752 __ fstp_s(vmarg); // store single 753 } else { 754 __ fld_d(vmarg); // load double to ST0 755 __ fstp_s(vmarg); // store single 756 } 757#endif //_LP64 758 759 if (ek == _adapter_opt_d2f) { 760 remove_arg_slots(_masm, -stack_move_unit(), 761 rax_argslot, rbx_temp, rdx_temp); 762 } 763 764 __ movptr(rcx_recv, rcx_mh_vmtarget); 765 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 766 } 767 break; 768 769 case _adapter_prim_to_ref: 770 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI 771 break; 772 773 case _adapter_swap_args: 774 case _adapter_rot_args: 775 // handled completely by optimized cases 776 __ stop("init_AdapterMethodHandle should not issue this"); 777 break; 778 779 case _adapter_opt_swap_1: 780 case _adapter_opt_swap_2: 781 case _adapter_opt_rot_1_up: 782 case _adapter_opt_rot_1_down: 783 case _adapter_opt_rot_2_up: 784 case _adapter_opt_rot_2_down: 785 { 786 int swap_bytes = 0, rotate = 0; 787 get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate); 788 789 // 'argslot' is the position of the first argument to swap 790 __ movl(rax_argslot, rcx_amh_vmargslot); 791 __ lea(rax_argslot, __ argument_address(rax_argslot)); 792 793 // 'vminfo' is the second 794 Register rbx_destslot = rbx_temp; 795 __ movl(rbx_destslot, rcx_amh_conversion); 796 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); 797 __ andl(rbx_destslot, CONV_VMINFO_MASK); 798 __ lea(rbx_destslot, __ argument_address(rbx_destslot)); 799 DEBUG_ONLY(verify_argslot(_masm, rbx_destslot, "swap point must fall within current frame")); 800 801 if (!rotate) { 802 for (int i = 0; i < swap_bytes; i += wordSize) { 803 __ movptr(rdx_temp, Address(rax_argslot , i)); 804 __ push(rdx_temp); 805 __ movptr(rdx_temp, Address(rbx_destslot, i)); 806 __ movptr(Address(rax_argslot, i), rdx_temp); 807 __ pop(rdx_temp); 808 __ movptr(Address(rbx_destslot, i), rdx_temp); 809 } 810 } else { 811 // push the first chunk, which is going to get overwritten 812 for (int i = swap_bytes; (i -= wordSize) >= 0; ) { 813 __ movptr(rdx_temp, Address(rax_argslot, i)); 814 __ push(rdx_temp); 815 } 816 817 if (rotate > 0) { 818 // rotate upward 819 __ subptr(rax_argslot, swap_bytes); 820#ifdef ASSERT 821 { 822 // Verify that argslot > destslot, by at least swap_bytes. 823 Label L_ok; 824 __ cmpptr(rax_argslot, rbx_destslot); 825 __ jccb(Assembler::aboveEqual, L_ok); 826 __ stop("source must be above destination (upward rotation)"); 827 __ bind(L_ok); 828 } 829#endif 830 // work argslot down to destslot, copying contiguous data upwards 831 // pseudo-code: 832 // rax = src_addr - swap_bytes 833 // rbx = dest_addr 834 // while (rax >= rbx) *(rax + swap_bytes) = *(rax + 0), rax--; 835 Label loop; 836 __ bind(loop); 837 __ movptr(rdx_temp, Address(rax_argslot, 0)); 838 __ movptr(Address(rax_argslot, swap_bytes), rdx_temp); 839 __ addptr(rax_argslot, -wordSize); 840 __ cmpptr(rax_argslot, rbx_destslot); 841 __ jccb(Assembler::aboveEqual, loop); 842 } else { 843 __ addptr(rax_argslot, swap_bytes); 844#ifdef ASSERT 845 { 846 // Verify that argslot < destslot, by at least swap_bytes. 847 Label L_ok; 848 __ cmpptr(rax_argslot, rbx_destslot); 849 __ jccb(Assembler::belowEqual, L_ok); 850 __ stop("source must be below destination (downward rotation)"); 851 __ bind(L_ok); 852 } 853#endif 854 // work argslot up to destslot, copying contiguous data downwards 855 // pseudo-code: 856 // rax = src_addr + swap_bytes 857 // rbx = dest_addr 858 // while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++; 859 Label loop; 860 __ bind(loop); 861 __ movptr(rdx_temp, Address(rax_argslot, 0)); 862 __ movptr(Address(rax_argslot, -swap_bytes), rdx_temp); 863 __ addptr(rax_argslot, wordSize); 864 __ cmpptr(rax_argslot, rbx_destslot); 865 __ jccb(Assembler::belowEqual, loop); 866 } 867 868 // pop the original first chunk into the destination slot, now free 869 for (int i = 0; i < swap_bytes; i += wordSize) { 870 __ pop(rdx_temp); 871 __ movptr(Address(rbx_destslot, i), rdx_temp); 872 } 873 } 874 875 __ movptr(rcx_recv, rcx_mh_vmtarget); 876 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 877 } 878 break; 879 880 case _adapter_dup_args: 881 { 882 // 'argslot' is the position of the first argument to duplicate 883 __ movl(rax_argslot, rcx_amh_vmargslot); 884 __ lea(rax_argslot, __ argument_address(rax_argslot)); 885 886 // 'stack_move' is negative number of words to duplicate 887 Register rdx_stack_move = rdx_temp; 888 __ movl2ptr(rdx_stack_move, rcx_amh_conversion); 889 __ sarptr(rdx_stack_move, CONV_STACK_MOVE_SHIFT); 890 891 int argslot0_num = 0; 892 Address argslot0 = __ argument_address(RegisterOrConstant(argslot0_num)); 893 assert(argslot0.base() == rsp, ""); 894 int pre_arg_size = argslot0.disp(); 895 assert(pre_arg_size % wordSize == 0, ""); 896 assert(pre_arg_size > 0, "must include PC"); 897 898 // remember the old rsp+1 (argslot[0]) 899 Register rbx_oldarg = rbx_temp; 900 __ lea(rbx_oldarg, argslot0); 901 902 // move rsp down to make room for dups 903 __ lea(rsp, Address(rsp, rdx_stack_move, Address::times_ptr)); 904 905 // compute the new rsp+1 (argslot[0]) 906 Register rdx_newarg = rdx_temp; 907 __ lea(rdx_newarg, argslot0); 908 909 __ push(rdi); // need a temp 910 // (preceding push must be done after arg addresses are taken!) 911 912 // pull down the pre_arg_size data (PC) 913 for (int i = -pre_arg_size; i < 0; i += wordSize) { 914 __ movptr(rdi, Address(rbx_oldarg, i)); 915 __ movptr(Address(rdx_newarg, i), rdi); 916 } 917 918 // copy from rax_argslot[0...] down to new_rsp[1...] 919 // pseudo-code: 920 // rbx = old_rsp+1 921 // rdx = new_rsp+1 922 // rax = argslot 923 // while (rdx < rbx) *rdx++ = *rax++ 924 Label loop; 925 __ bind(loop); 926 __ movptr(rdi, Address(rax_argslot, 0)); 927 __ movptr(Address(rdx_newarg, 0), rdi); 928 __ addptr(rax_argslot, wordSize); 929 __ addptr(rdx_newarg, wordSize); 930 __ cmpptr(rdx_newarg, rbx_oldarg); 931 __ jccb(Assembler::less, loop); 932 933 __ pop(rdi); // restore temp 934 935 __ movptr(rcx_recv, rcx_mh_vmtarget); 936 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 937 } 938 break; 939 940 case _adapter_drop_args: 941 { 942 // 'argslot' is the position of the first argument to nuke 943 __ movl(rax_argslot, rcx_amh_vmargslot); 944 __ lea(rax_argslot, __ argument_address(rax_argslot)); 945 946 __ push(rdi); // need a temp 947 // (must do previous push after argslot address is taken) 948 949 // 'stack_move' is number of words to drop 950 Register rdi_stack_move = rdi; 951 __ movl2ptr(rdi_stack_move, rcx_amh_conversion); 952 __ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT); 953 remove_arg_slots(_masm, rdi_stack_move, 954 rax_argslot, rbx_temp, rdx_temp); 955 956 __ pop(rdi); // restore temp 957 958 __ movptr(rcx_recv, rcx_mh_vmtarget); 959 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 960 } 961 break; 962 963 case _adapter_collect_args: 964 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI 965 break; 966 967 case _adapter_spread_args: 968 // handled completely by optimized cases 969 __ stop("init_AdapterMethodHandle should not issue this"); 970 break; 971 972 case _adapter_opt_spread_0: 973 case _adapter_opt_spread_1: 974 case _adapter_opt_spread_more: 975 { 976 // spread an array out into a group of arguments 977 int length_constant = get_ek_adapter_opt_spread_info(ek); 978 979 // find the address of the array argument 980 __ movl(rax_argslot, rcx_amh_vmargslot); 981 __ lea(rax_argslot, __ argument_address(rax_argslot)); 982 983 // grab some temps 984 { __ push(rsi); __ push(rdi); } 985 // (preceding pushes must be done after argslot address is taken!) 986#define UNPUSH_RSI_RDI \ 987 { __ pop(rdi); __ pop(rsi); } 988 989 // arx_argslot points both to the array and to the first output arg 990 vmarg = Address(rax_argslot, 0); 991 992 // Get the array value. 993 Register rsi_array = rsi; 994 Register rdx_array_klass = rdx_temp; 995 BasicType elem_type = T_OBJECT; 996 int length_offset = arrayOopDesc::length_offset_in_bytes(); 997 int elem0_offset = arrayOopDesc::base_offset_in_bytes(elem_type); 998 __ movptr(rsi_array, vmarg); 999 Label skip_array_check; 1000 if (length_constant == 0) { 1001 __ testptr(rsi_array, rsi_array); 1002 __ jcc(Assembler::zero, skip_array_check); 1003 } 1004 __ null_check(rsi_array, oopDesc::klass_offset_in_bytes()); 1005 __ load_klass(rdx_array_klass, rsi_array); 1006 1007 // Check the array type. 1008 Register rbx_klass = rbx_temp; 1009 __ movptr(rbx_klass, rcx_amh_argument); // this is a Class object! 1010 __ movptr(rbx_klass, Address(rbx_klass, java_lang_Class::klass_offset_in_bytes())); 1011 1012 Label ok_array_klass, bad_array_klass, bad_array_length; 1013 __ check_klass_subtype(rdx_array_klass, rbx_klass, rdi, ok_array_klass); 1014 // If we get here, the type check failed! 1015 __ jmp(bad_array_klass); 1016 __ bind(ok_array_klass); 1017 1018 // Check length. 1019 if (length_constant >= 0) { 1020 __ cmpl(Address(rsi_array, length_offset), length_constant); 1021 } else { 1022 Register rbx_vminfo = rbx_temp; 1023 __ movl(rbx_vminfo, rcx_amh_conversion); 1024 assert(CONV_VMINFO_SHIFT == 0, "preshifted"); 1025 __ andl(rbx_vminfo, CONV_VMINFO_MASK); 1026 __ cmpl(rbx_vminfo, Address(rsi_array, length_offset)); 1027 } 1028 __ jcc(Assembler::notEqual, bad_array_length); 1029 1030 Register rdx_argslot_limit = rdx_temp; 1031 1032 // Array length checks out. Now insert any required stack slots. 1033 if (length_constant == -1) { 1034 // Form a pointer to the end of the affected region. 1035 __ lea(rdx_argslot_limit, Address(rax_argslot, Interpreter::stackElementSize)); 1036 // 'stack_move' is negative number of words to insert 1037 Register rdi_stack_move = rdi; 1038 __ movl2ptr(rdi_stack_move, rcx_amh_conversion); 1039 __ sarptr(rdi_stack_move, CONV_STACK_MOVE_SHIFT); 1040 Register rsi_temp = rsi_array; // spill this 1041 insert_arg_slots(_masm, rdi_stack_move, -1, 1042 rax_argslot, rbx_temp, rsi_temp); 1043 // reload the array (since rsi was killed) 1044 __ movptr(rsi_array, vmarg); 1045 } else if (length_constant > 1) { 1046 int arg_mask = 0; 1047 int new_slots = (length_constant - 1); 1048 for (int i = 0; i < new_slots; i++) { 1049 arg_mask <<= 1; 1050 arg_mask |= _INSERT_REF_MASK; 1051 } 1052 insert_arg_slots(_masm, new_slots * stack_move_unit(), arg_mask, 1053 rax_argslot, rbx_temp, rdx_temp); 1054 } else if (length_constant == 1) { 1055 // no stack resizing required 1056 } else if (length_constant == 0) { 1057 remove_arg_slots(_masm, -stack_move_unit(), 1058 rax_argslot, rbx_temp, rdx_temp); 1059 } 1060 1061 // Copy from the array to the new slots. 1062 // Note: Stack change code preserves integrity of rax_argslot pointer. 1063 // So even after slot insertions, rax_argslot still points to first argument. 1064 if (length_constant == -1) { 1065 // [rax_argslot, rdx_argslot_limit) is the area we are inserting into. 1066 Register rsi_source = rsi_array; 1067 __ lea(rsi_source, Address(rsi_array, elem0_offset)); 1068 Label loop; 1069 __ bind(loop); 1070 __ movptr(rbx_temp, Address(rsi_source, 0)); 1071 __ movptr(Address(rax_argslot, 0), rbx_temp); 1072 __ addptr(rsi_source, type2aelembytes(elem_type)); 1073 __ addptr(rax_argslot, Interpreter::stackElementSize); 1074 __ cmpptr(rax_argslot, rdx_argslot_limit); 1075 __ jccb(Assembler::less, loop); 1076 } else if (length_constant == 0) { 1077 __ bind(skip_array_check); 1078 // nothing to copy 1079 } else { 1080 int elem_offset = elem0_offset; 1081 int slot_offset = 0; 1082 for (int index = 0; index < length_constant; index++) { 1083 __ movptr(rbx_temp, Address(rsi_array, elem_offset)); 1084 __ movptr(Address(rax_argslot, slot_offset), rbx_temp); 1085 elem_offset += type2aelembytes(elem_type); 1086 slot_offset += Interpreter::stackElementSize; 1087 } 1088 } 1089 1090 // Arguments are spread. Move to next method handle. 1091 UNPUSH_RSI_RDI; 1092 __ movptr(rcx_recv, rcx_mh_vmtarget); 1093 __ jump_to_method_handle_entry(rcx_recv, rdx_temp); 1094 1095 __ bind(bad_array_klass); 1096 UNPUSH_RSI_RDI; 1097 __ pushptr(Address(rdx_array_klass, java_mirror_offset)); // required type 1098 __ pushptr(vmarg); // bad array 1099 __ push((int)Bytecodes::_aaload); // who is complaining? 1100 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); 1101 1102 __ bind(bad_array_length); 1103 UNPUSH_RSI_RDI; 1104 __ push(rcx_recv); // AMH requiring a certain length 1105 __ pushptr(vmarg); // bad array 1106 __ push((int)Bytecodes::_arraylength); // who is complaining? 1107 __ jump(ExternalAddress(from_interpreted_entry(_raise_exception))); 1108 1109#undef UNPUSH_RSI_RDI 1110 } 1111 break; 1112 1113 case _adapter_flyby: 1114 case _adapter_ricochet: 1115 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI 1116 break; 1117 1118 default: ShouldNotReachHere(); 1119 } 1120 __ hlt(); 1121 1122 address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry); 1123 __ unimplemented(entry_name(ek)); // %%% FIXME: NYI 1124 1125 init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie)); 1126} 1127