Tue, 02 Sep 2014 12:48:45 -0700
8055494: Add C2 x86 intrinsic for BigInteger::multiplyToLen() method
Summary: Add new C2 intrinsic for BigInteger::multiplyToLen() on x86 in 64-bit VM.
Reviewed-by: roland
duke@435 | 1 | /* |
coleenp@4037 | 2 | * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "interpreter/interpreter.hpp" |
stefank@2314 | 27 | #include "interpreter/interpreterRuntime.hpp" |
stefank@2314 | 28 | #include "memory/allocation.inline.hpp" |
stefank@2314 | 29 | #include "memory/universe.inline.hpp" |
coleenp@4037 | 30 | #include "oops/method.hpp" |
stefank@2314 | 31 | #include "oops/oop.inline.hpp" |
stefank@2314 | 32 | #include "runtime/handles.inline.hpp" |
stefank@2314 | 33 | #include "runtime/icache.hpp" |
stefank@2314 | 34 | #include "runtime/interfaceSupport.hpp" |
stefank@2314 | 35 | #include "runtime/signature.hpp" |
duke@435 | 36 | |
duke@435 | 37 | #define __ _masm-> |
duke@435 | 38 | |
duke@435 | 39 | // Implementation of SignatureHandlerGenerator |
duke@435 | 40 | |
duke@435 | 41 | Register InterpreterRuntime::SignatureHandlerGenerator::from() { return r14; } |
duke@435 | 42 | Register InterpreterRuntime::SignatureHandlerGenerator::to() { return rsp; } |
duke@435 | 43 | Register InterpreterRuntime::SignatureHandlerGenerator::temp() { return rscratch1; } |
duke@435 | 44 | |
duke@435 | 45 | void InterpreterRuntime::SignatureHandlerGenerator::pass_int() { |
duke@435 | 46 | const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
duke@435 | 47 | |
duke@435 | 48 | #ifdef _WIN64 |
duke@435 | 49 | switch (_num_args) { |
duke@435 | 50 | case 0: |
duke@435 | 51 | __ movl(c_rarg1, src); |
duke@435 | 52 | _num_args++; |
duke@435 | 53 | break; |
duke@435 | 54 | case 1: |
duke@435 | 55 | __ movl(c_rarg2, src); |
duke@435 | 56 | _num_args++; |
duke@435 | 57 | break; |
duke@435 | 58 | case 2: |
duke@435 | 59 | __ movl(c_rarg3, src); |
duke@435 | 60 | _num_args++; |
duke@435 | 61 | break; |
duke@435 | 62 | default: |
duke@435 | 63 | __ movl(rax, src); |
duke@435 | 64 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 65 | _stack_offset += wordSize; |
duke@435 | 66 | break; |
duke@435 | 67 | } |
duke@435 | 68 | #else |
duke@435 | 69 | switch (_num_int_args) { |
duke@435 | 70 | case 0: |
duke@435 | 71 | __ movl(c_rarg1, src); |
duke@435 | 72 | _num_int_args++; |
duke@435 | 73 | break; |
duke@435 | 74 | case 1: |
duke@435 | 75 | __ movl(c_rarg2, src); |
duke@435 | 76 | _num_int_args++; |
duke@435 | 77 | break; |
duke@435 | 78 | case 2: |
duke@435 | 79 | __ movl(c_rarg3, src); |
duke@435 | 80 | _num_int_args++; |
duke@435 | 81 | break; |
duke@435 | 82 | case 3: |
duke@435 | 83 | __ movl(c_rarg4, src); |
duke@435 | 84 | _num_int_args++; |
duke@435 | 85 | break; |
duke@435 | 86 | case 4: |
duke@435 | 87 | __ movl(c_rarg5, src); |
duke@435 | 88 | _num_int_args++; |
duke@435 | 89 | break; |
duke@435 | 90 | default: |
duke@435 | 91 | __ movl(rax, src); |
duke@435 | 92 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 93 | _stack_offset += wordSize; |
duke@435 | 94 | break; |
duke@435 | 95 | } |
duke@435 | 96 | #endif |
duke@435 | 97 | } |
duke@435 | 98 | |
duke@435 | 99 | void InterpreterRuntime::SignatureHandlerGenerator::pass_long() { |
duke@435 | 100 | const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1)); |
duke@435 | 101 | |
duke@435 | 102 | #ifdef _WIN64 |
duke@435 | 103 | switch (_num_args) { |
duke@435 | 104 | case 0: |
never@739 | 105 | __ movptr(c_rarg1, src); |
duke@435 | 106 | _num_args++; |
duke@435 | 107 | break; |
duke@435 | 108 | case 1: |
never@739 | 109 | __ movptr(c_rarg2, src); |
duke@435 | 110 | _num_args++; |
duke@435 | 111 | break; |
duke@435 | 112 | case 2: |
never@739 | 113 | __ movptr(c_rarg3, src); |
duke@435 | 114 | _num_args++; |
duke@435 | 115 | break; |
duke@435 | 116 | case 3: |
duke@435 | 117 | default: |
never@739 | 118 | __ movptr(rax, src); |
never@739 | 119 | __ movptr(Address(to(), _stack_offset), rax); |
duke@435 | 120 | _stack_offset += wordSize; |
duke@435 | 121 | break; |
duke@435 | 122 | } |
duke@435 | 123 | #else |
duke@435 | 124 | switch (_num_int_args) { |
duke@435 | 125 | case 0: |
never@739 | 126 | __ movptr(c_rarg1, src); |
duke@435 | 127 | _num_int_args++; |
duke@435 | 128 | break; |
duke@435 | 129 | case 1: |
never@739 | 130 | __ movptr(c_rarg2, src); |
duke@435 | 131 | _num_int_args++; |
duke@435 | 132 | break; |
duke@435 | 133 | case 2: |
never@739 | 134 | __ movptr(c_rarg3, src); |
duke@435 | 135 | _num_int_args++; |
duke@435 | 136 | break; |
duke@435 | 137 | case 3: |
never@739 | 138 | __ movptr(c_rarg4, src); |
duke@435 | 139 | _num_int_args++; |
duke@435 | 140 | break; |
duke@435 | 141 | case 4: |
never@739 | 142 | __ movptr(c_rarg5, src); |
duke@435 | 143 | _num_int_args++; |
duke@435 | 144 | break; |
duke@435 | 145 | default: |
never@739 | 146 | __ movptr(rax, src); |
never@739 | 147 | __ movptr(Address(to(), _stack_offset), rax); |
duke@435 | 148 | _stack_offset += wordSize; |
duke@435 | 149 | break; |
duke@435 | 150 | } |
duke@435 | 151 | #endif |
duke@435 | 152 | } |
duke@435 | 153 | |
duke@435 | 154 | void InterpreterRuntime::SignatureHandlerGenerator::pass_float() { |
duke@435 | 155 | const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
duke@435 | 156 | |
duke@435 | 157 | #ifdef _WIN64 |
duke@435 | 158 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 159 | __ movflt(as_XMMRegister(++_num_args), src); |
duke@435 | 160 | } else { |
duke@435 | 161 | __ movl(rax, src); |
duke@435 | 162 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 163 | _stack_offset += wordSize; |
duke@435 | 164 | } |
duke@435 | 165 | #else |
duke@435 | 166 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 167 | __ movflt(as_XMMRegister(_num_fp_args++), src); |
duke@435 | 168 | } else { |
duke@435 | 169 | __ movl(rax, src); |
duke@435 | 170 | __ movl(Address(to(), _stack_offset), rax); |
duke@435 | 171 | _stack_offset += wordSize; |
duke@435 | 172 | } |
duke@435 | 173 | #endif |
duke@435 | 174 | } |
duke@435 | 175 | |
duke@435 | 176 | void InterpreterRuntime::SignatureHandlerGenerator::pass_double() { |
duke@435 | 177 | const Address src(from(), Interpreter::local_offset_in_bytes(offset() + 1)); |
duke@435 | 178 | |
duke@435 | 179 | #ifdef _WIN64 |
duke@435 | 180 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 181 | __ movdbl(as_XMMRegister(++_num_args), src); |
duke@435 | 182 | } else { |
never@739 | 183 | __ movptr(rax, src); |
never@739 | 184 | __ movptr(Address(to(), _stack_offset), rax); |
duke@435 | 185 | _stack_offset += wordSize; |
duke@435 | 186 | } |
duke@435 | 187 | #else |
duke@435 | 188 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 189 | __ movdbl(as_XMMRegister(_num_fp_args++), src); |
duke@435 | 190 | } else { |
never@739 | 191 | __ movptr(rax, src); |
never@739 | 192 | __ movptr(Address(to(), _stack_offset), rax); |
duke@435 | 193 | _stack_offset += wordSize; |
duke@435 | 194 | } |
duke@435 | 195 | #endif |
duke@435 | 196 | } |
duke@435 | 197 | |
duke@435 | 198 | void InterpreterRuntime::SignatureHandlerGenerator::pass_object() { |
duke@435 | 199 | const Address src(from(), Interpreter::local_offset_in_bytes(offset())); |
duke@435 | 200 | |
duke@435 | 201 | #ifdef _WIN64 |
duke@435 | 202 | switch (_num_args) { |
duke@435 | 203 | case 0: |
duke@435 | 204 | assert(offset() == 0, "argument register 1 can only be (non-null) receiver"); |
never@739 | 205 | __ lea(c_rarg1, src); |
duke@435 | 206 | _num_args++; |
duke@435 | 207 | break; |
duke@435 | 208 | case 1: |
never@739 | 209 | __ lea(rax, src); |
duke@435 | 210 | __ xorl(c_rarg2, c_rarg2); |
never@739 | 211 | __ cmpptr(src, 0); |
never@739 | 212 | __ cmov(Assembler::notEqual, c_rarg2, rax); |
duke@435 | 213 | _num_args++; |
duke@435 | 214 | break; |
duke@435 | 215 | case 2: |
never@739 | 216 | __ lea(rax, src); |
duke@435 | 217 | __ xorl(c_rarg3, c_rarg3); |
never@739 | 218 | __ cmpptr(src, 0); |
never@739 | 219 | __ cmov(Assembler::notEqual, c_rarg3, rax); |
duke@435 | 220 | _num_args++; |
duke@435 | 221 | break; |
duke@435 | 222 | default: |
never@739 | 223 | __ lea(rax, src); |
duke@435 | 224 | __ xorl(temp(), temp()); |
never@739 | 225 | __ cmpptr(src, 0); |
never@739 | 226 | __ cmov(Assembler::notEqual, temp(), rax); |
never@739 | 227 | __ movptr(Address(to(), _stack_offset), temp()); |
duke@435 | 228 | _stack_offset += wordSize; |
duke@435 | 229 | break; |
duke@435 | 230 | } |
duke@435 | 231 | #else |
duke@435 | 232 | switch (_num_int_args) { |
duke@435 | 233 | case 0: |
duke@435 | 234 | assert(offset() == 0, "argument register 1 can only be (non-null) receiver"); |
never@739 | 235 | __ lea(c_rarg1, src); |
duke@435 | 236 | _num_int_args++; |
duke@435 | 237 | break; |
duke@435 | 238 | case 1: |
never@739 | 239 | __ lea(rax, src); |
duke@435 | 240 | __ xorl(c_rarg2, c_rarg2); |
never@739 | 241 | __ cmpptr(src, 0); |
never@739 | 242 | __ cmov(Assembler::notEqual, c_rarg2, rax); |
duke@435 | 243 | _num_int_args++; |
duke@435 | 244 | break; |
duke@435 | 245 | case 2: |
never@739 | 246 | __ lea(rax, src); |
duke@435 | 247 | __ xorl(c_rarg3, c_rarg3); |
never@739 | 248 | __ cmpptr(src, 0); |
never@739 | 249 | __ cmov(Assembler::notEqual, c_rarg3, rax); |
duke@435 | 250 | _num_int_args++; |
duke@435 | 251 | break; |
duke@435 | 252 | case 3: |
never@739 | 253 | __ lea(rax, src); |
duke@435 | 254 | __ xorl(c_rarg4, c_rarg4); |
never@739 | 255 | __ cmpptr(src, 0); |
never@739 | 256 | __ cmov(Assembler::notEqual, c_rarg4, rax); |
duke@435 | 257 | _num_int_args++; |
duke@435 | 258 | break; |
duke@435 | 259 | case 4: |
never@739 | 260 | __ lea(rax, src); |
duke@435 | 261 | __ xorl(c_rarg5, c_rarg5); |
never@739 | 262 | __ cmpptr(src, 0); |
never@739 | 263 | __ cmov(Assembler::notEqual, c_rarg5, rax); |
duke@435 | 264 | _num_int_args++; |
duke@435 | 265 | break; |
duke@435 | 266 | default: |
never@739 | 267 | __ lea(rax, src); |
duke@435 | 268 | __ xorl(temp(), temp()); |
never@739 | 269 | __ cmpptr(src, 0); |
never@739 | 270 | __ cmov(Assembler::notEqual, temp(), rax); |
never@739 | 271 | __ movptr(Address(to(), _stack_offset), temp()); |
duke@435 | 272 | _stack_offset += wordSize; |
duke@435 | 273 | break; |
duke@435 | 274 | } |
duke@435 | 275 | #endif |
duke@435 | 276 | } |
duke@435 | 277 | |
duke@435 | 278 | void InterpreterRuntime::SignatureHandlerGenerator::generate(uint64_t fingerprint) { |
duke@435 | 279 | // generate code to handle arguments |
duke@435 | 280 | iterate(fingerprint); |
duke@435 | 281 | |
duke@435 | 282 | // return result handler |
duke@435 | 283 | __ lea(rax, ExternalAddress(Interpreter::result_handler(method()->result_type()))); |
duke@435 | 284 | __ ret(0); |
duke@435 | 285 | |
duke@435 | 286 | __ flush(); |
duke@435 | 287 | } |
duke@435 | 288 | |
duke@435 | 289 | |
duke@435 | 290 | // Implementation of SignatureHandlerLibrary |
duke@435 | 291 | |
duke@435 | 292 | void SignatureHandlerLibrary::pd_set_handler(address handler) {} |
duke@435 | 293 | |
duke@435 | 294 | |
duke@435 | 295 | #ifdef _WIN64 |
duke@435 | 296 | class SlowSignatureHandler |
duke@435 | 297 | : public NativeSignatureIterator { |
duke@435 | 298 | private: |
duke@435 | 299 | address _from; |
duke@435 | 300 | intptr_t* _to; |
duke@435 | 301 | intptr_t* _reg_args; |
duke@435 | 302 | intptr_t* _fp_identifiers; |
duke@435 | 303 | unsigned int _num_args; |
duke@435 | 304 | |
duke@435 | 305 | virtual void pass_int() |
duke@435 | 306 | { |
duke@435 | 307 | jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 308 | _from -= Interpreter::stackElementSize; |
duke@435 | 309 | |
duke@435 | 310 | if (_num_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 311 | *_reg_args++ = from_obj; |
duke@435 | 312 | _num_args++; |
duke@435 | 313 | } else { |
duke@435 | 314 | *_to++ = from_obj; |
duke@435 | 315 | } |
duke@435 | 316 | } |
duke@435 | 317 | |
duke@435 | 318 | virtual void pass_long() |
duke@435 | 319 | { |
duke@435 | 320 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
twisti@1861 | 321 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 322 | |
duke@435 | 323 | if (_num_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 324 | *_reg_args++ = from_obj; |
duke@435 | 325 | _num_args++; |
duke@435 | 326 | } else { |
duke@435 | 327 | *_to++ = from_obj; |
duke@435 | 328 | } |
duke@435 | 329 | } |
duke@435 | 330 | |
duke@435 | 331 | virtual void pass_object() |
duke@435 | 332 | { |
duke@435 | 333 | intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 334 | _from -= Interpreter::stackElementSize; |
duke@435 | 335 | if (_num_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 336 | *_reg_args++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
duke@435 | 337 | _num_args++; |
duke@435 | 338 | } else { |
duke@435 | 339 | *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
duke@435 | 340 | } |
duke@435 | 341 | } |
duke@435 | 342 | |
duke@435 | 343 | virtual void pass_float() |
duke@435 | 344 | { |
duke@435 | 345 | jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 346 | _from -= Interpreter::stackElementSize; |
duke@435 | 347 | |
duke@435 | 348 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 349 | *_reg_args++ = from_obj; |
kvn@1080 | 350 | *_fp_identifiers |= (intptr_t)(0x01 << (_num_args*2)); // mark as float |
duke@435 | 351 | _num_args++; |
duke@435 | 352 | } else { |
duke@435 | 353 | *_to++ = from_obj; |
duke@435 | 354 | } |
duke@435 | 355 | } |
duke@435 | 356 | |
duke@435 | 357 | virtual void pass_double() |
duke@435 | 358 | { |
duke@435 | 359 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
twisti@1861 | 360 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 361 | |
duke@435 | 362 | if (_num_args < Argument::n_float_register_parameters_c-1) { |
duke@435 | 363 | *_reg_args++ = from_obj; |
kvn@1080 | 364 | *_fp_identifiers |= (intptr_t)(0x3 << (_num_args*2)); // mark as double |
duke@435 | 365 | _num_args++; |
duke@435 | 366 | } else { |
duke@435 | 367 | *_to++ = from_obj; |
duke@435 | 368 | } |
duke@435 | 369 | } |
duke@435 | 370 | |
duke@435 | 371 | public: |
duke@435 | 372 | SlowSignatureHandler(methodHandle method, address from, intptr_t* to) |
duke@435 | 373 | : NativeSignatureIterator(method) |
duke@435 | 374 | { |
duke@435 | 375 | _from = from; |
duke@435 | 376 | _to = to; |
duke@435 | 377 | |
duke@435 | 378 | _reg_args = to - (method->is_static() ? 4 : 5); |
duke@435 | 379 | _fp_identifiers = to - 2; |
duke@435 | 380 | _to = _to + 4; // Windows reserves stack space for register arguments |
duke@435 | 381 | *(int*) _fp_identifiers = 0; |
duke@435 | 382 | _num_args = (method->is_static() ? 1 : 0); |
duke@435 | 383 | } |
duke@435 | 384 | }; |
duke@435 | 385 | #else |
duke@435 | 386 | class SlowSignatureHandler |
duke@435 | 387 | : public NativeSignatureIterator { |
duke@435 | 388 | private: |
duke@435 | 389 | address _from; |
duke@435 | 390 | intptr_t* _to; |
duke@435 | 391 | intptr_t* _int_args; |
duke@435 | 392 | intptr_t* _fp_args; |
duke@435 | 393 | intptr_t* _fp_identifiers; |
duke@435 | 394 | unsigned int _num_int_args; |
duke@435 | 395 | unsigned int _num_fp_args; |
duke@435 | 396 | |
duke@435 | 397 | virtual void pass_int() |
duke@435 | 398 | { |
duke@435 | 399 | jint from_obj = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 400 | _from -= Interpreter::stackElementSize; |
duke@435 | 401 | |
duke@435 | 402 | if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 403 | *_int_args++ = from_obj; |
duke@435 | 404 | _num_int_args++; |
duke@435 | 405 | } else { |
duke@435 | 406 | *_to++ = from_obj; |
duke@435 | 407 | } |
duke@435 | 408 | } |
duke@435 | 409 | |
duke@435 | 410 | virtual void pass_long() |
duke@435 | 411 | { |
duke@435 | 412 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
twisti@1861 | 413 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 414 | |
duke@435 | 415 | if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 416 | *_int_args++ = from_obj; |
duke@435 | 417 | _num_int_args++; |
duke@435 | 418 | } else { |
duke@435 | 419 | *_to++ = from_obj; |
duke@435 | 420 | } |
duke@435 | 421 | } |
duke@435 | 422 | |
duke@435 | 423 | virtual void pass_object() |
duke@435 | 424 | { |
duke@435 | 425 | intptr_t *from_addr = (intptr_t*)(_from + Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 426 | _from -= Interpreter::stackElementSize; |
duke@435 | 427 | |
duke@435 | 428 | if (_num_int_args < Argument::n_int_register_parameters_c-1) { |
duke@435 | 429 | *_int_args++ = (*from_addr == 0) ? NULL : (intptr_t)from_addr; |
duke@435 | 430 | _num_int_args++; |
duke@435 | 431 | } else { |
duke@435 | 432 | *_to++ = (*from_addr == 0) ? NULL : (intptr_t) from_addr; |
duke@435 | 433 | } |
duke@435 | 434 | } |
duke@435 | 435 | |
duke@435 | 436 | virtual void pass_float() |
duke@435 | 437 | { |
duke@435 | 438 | jint from_obj = *(jint*)(_from+Interpreter::local_offset_in_bytes(0)); |
twisti@1861 | 439 | _from -= Interpreter::stackElementSize; |
duke@435 | 440 | |
duke@435 | 441 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 442 | *_fp_args++ = from_obj; |
duke@435 | 443 | _num_fp_args++; |
duke@435 | 444 | } else { |
duke@435 | 445 | *_to++ = from_obj; |
duke@435 | 446 | } |
duke@435 | 447 | } |
duke@435 | 448 | |
duke@435 | 449 | virtual void pass_double() |
duke@435 | 450 | { |
duke@435 | 451 | intptr_t from_obj = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); |
twisti@1861 | 452 | _from -= 2*Interpreter::stackElementSize; |
duke@435 | 453 | |
duke@435 | 454 | if (_num_fp_args < Argument::n_float_register_parameters_c) { |
duke@435 | 455 | *_fp_args++ = from_obj; |
duke@435 | 456 | *_fp_identifiers |= (1 << _num_fp_args); // mark as double |
duke@435 | 457 | _num_fp_args++; |
duke@435 | 458 | } else { |
duke@435 | 459 | *_to++ = from_obj; |
duke@435 | 460 | } |
duke@435 | 461 | } |
duke@435 | 462 | |
duke@435 | 463 | public: |
duke@435 | 464 | SlowSignatureHandler(methodHandle method, address from, intptr_t* to) |
duke@435 | 465 | : NativeSignatureIterator(method) |
duke@435 | 466 | { |
duke@435 | 467 | _from = from; |
duke@435 | 468 | _to = to; |
duke@435 | 469 | |
duke@435 | 470 | _int_args = to - (method->is_static() ? 14 : 15); |
duke@435 | 471 | _fp_args = to - 9; |
duke@435 | 472 | _fp_identifiers = to - 10; |
duke@435 | 473 | *(int*) _fp_identifiers = 0; |
duke@435 | 474 | _num_int_args = (method->is_static() ? 1 : 0); |
duke@435 | 475 | _num_fp_args = 0; |
duke@435 | 476 | } |
duke@435 | 477 | }; |
duke@435 | 478 | #endif |
duke@435 | 479 | |
duke@435 | 480 | |
duke@435 | 481 | IRT_ENTRY(address, |
duke@435 | 482 | InterpreterRuntime::slow_signature_handler(JavaThread* thread, |
coleenp@4037 | 483 | Method* method, |
duke@435 | 484 | intptr_t* from, |
duke@435 | 485 | intptr_t* to)) |
coleenp@4037 | 486 | methodHandle m(thread, (Method*)method); |
duke@435 | 487 | assert(m->is_native(), "sanity check"); |
duke@435 | 488 | |
duke@435 | 489 | // handle arguments |
duke@435 | 490 | SlowSignatureHandler(m, (address)from, to + 1).iterate(UCONST64(-1)); |
duke@435 | 491 | |
duke@435 | 492 | // return result handler |
duke@435 | 493 | return Interpreter::result_handler(m->result_type()); |
duke@435 | 494 | IRT_END |