Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/c1_CodeStubs_sparc.cpp @ 1819:f02a8bbe6ed4
6986046: C1 valuestack cleanup
Summary: fixes an historical oddity in C1 with inlining where all of the expression stacks are kept in the topmost ValueStack instead of being in their respective ValueStacks.
Reviewed-by: never
Contributed-by: Christian Wimmer <cwimmer@uci.edu>
| author | roland |
|---|---|
| date | Tue, 29 Dec 2009 19:08:54 +0100 |
| parents | d5d065957597 |
| children | c393f046f4c5 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
|
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_c1_CodeStubs_sparc.cpp.incl" | |
| 27 | |
| 28 #define __ ce->masm()-> | |
| 29 | |
| 30 RangeCheckStub::RangeCheckStub(CodeEmitInfo* info, LIR_Opr index, | |
| 31 bool throw_index_out_of_bounds_exception) | |
| 32 : _throw_index_out_of_bounds_exception(throw_index_out_of_bounds_exception) | |
| 33 , _index(index) | |
| 34 { | |
| 1819 | 35 assert(info != NULL, "must have info"); |
| 0 | 36 _info = new CodeEmitInfo(info); |
| 37 } | |
| 38 | |
| 39 | |
| 40 void RangeCheckStub::emit_code(LIR_Assembler* ce) { | |
| 41 __ bind(_entry); | |
| 42 | |
| 43 if (_index->is_register()) { | |
| 44 __ mov(_index->as_register(), G4); | |
| 45 } else { | |
| 46 __ set(_index->as_jint(), G4); | |
| 47 } | |
| 48 if (_throw_index_out_of_bounds_exception) { | |
| 49 __ call(Runtime1::entry_for(Runtime1::throw_index_exception_id), relocInfo::runtime_call_type); | |
| 50 } else { | |
| 51 __ call(Runtime1::entry_for(Runtime1::throw_range_check_failed_id), relocInfo::runtime_call_type); | |
| 52 } | |
| 53 __ delayed()->nop(); | |
| 54 ce->add_call_info_here(_info); | |
| 55 ce->verify_oop_map(_info); | |
| 56 #ifdef ASSERT | |
| 57 __ should_not_reach_here(); | |
| 58 #endif | |
| 59 } | |
| 60 | |
| 61 | |
| 62 void CounterOverflowStub::emit_code(LIR_Assembler* ce) { | |
| 63 __ bind(_entry); | |
| 64 __ set(_bci, G4); | |
| 65 __ call(Runtime1::entry_for(Runtime1::counter_overflow_id), relocInfo::runtime_call_type); | |
| 1783 | 66 __ delayed()->mov_or_nop(_method->as_register(), G5); |
| 0 | 67 ce->add_call_info_here(_info); |
| 68 ce->verify_oop_map(_info); | |
| 69 | |
| 70 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
| 71 __ delayed()->nop(); | |
| 72 } | |
| 73 | |
| 74 | |
| 75 void DivByZeroStub::emit_code(LIR_Assembler* ce) { | |
| 76 if (_offset != -1) { | |
| 77 ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); | |
| 78 } | |
| 79 __ bind(_entry); | |
| 80 __ call(Runtime1::entry_for(Runtime1::throw_div0_exception_id), relocInfo::runtime_call_type); | |
| 81 __ delayed()->nop(); | |
| 82 ce->add_call_info_here(_info); | |
| 83 ce->verify_oop_map(_info); | |
| 84 #ifdef ASSERT | |
| 85 __ should_not_reach_here(); | |
| 86 #endif | |
| 87 } | |
| 88 | |
| 89 | |
| 90 void ImplicitNullCheckStub::emit_code(LIR_Assembler* ce) { | |
| 91 ce->compilation()->implicit_exception_table()->append(_offset, __ offset()); | |
| 92 __ bind(_entry); | |
| 93 __ call(Runtime1::entry_for(Runtime1::throw_null_pointer_exception_id), | |
| 94 relocInfo::runtime_call_type); | |
| 95 __ delayed()->nop(); | |
| 96 ce->add_call_info_here(_info); | |
| 97 ce->verify_oop_map(_info); | |
| 98 #ifdef ASSERT | |
| 99 __ should_not_reach_here(); | |
| 100 #endif | |
| 101 } | |
| 102 | |
| 103 | |
| 104 // Implementation of SimpleExceptionStub | |
| 105 // Note: %g1 and %g3 are already in use | |
| 106 void SimpleExceptionStub::emit_code(LIR_Assembler* ce) { | |
| 107 __ bind(_entry); | |
| 108 __ call(Runtime1::entry_for(_stub), relocInfo::runtime_call_type); | |
| 109 | |
| 110 if (_obj->is_valid()) { | |
| 111 __ delayed()->mov(_obj->as_register(), G4); // _obj contains the optional argument to the stub | |
| 112 } else { | |
| 113 __ delayed()->mov(G0, G4); | |
| 114 } | |
| 115 ce->add_call_info_here(_info); | |
| 116 #ifdef ASSERT | |
| 117 __ should_not_reach_here(); | |
| 118 #endif | |
| 119 } | |
| 120 | |
| 121 | |
| 122 // Implementation of ArrayStoreExceptionStub | |
| 123 | |
| 124 ArrayStoreExceptionStub::ArrayStoreExceptionStub(CodeEmitInfo* info): | |
| 125 _info(info) { | |
| 126 } | |
| 127 | |
| 128 | |
| 129 void ArrayStoreExceptionStub::emit_code(LIR_Assembler* ce) { | |
| 130 __ bind(_entry); | |
| 131 __ call(Runtime1::entry_for(Runtime1::throw_array_store_exception_id), relocInfo::runtime_call_type); | |
| 132 __ delayed()->nop(); | |
| 133 ce->add_call_info_here(_info); | |
| 134 ce->verify_oop_map(_info); | |
| 135 #ifdef ASSERT | |
| 136 __ should_not_reach_here(); | |
| 137 #endif | |
| 138 } | |
| 139 | |
| 140 | |
| 141 | |
| 142 | |
| 143 // Implementation of NewInstanceStub | |
| 144 | |
| 145 NewInstanceStub::NewInstanceStub(LIR_Opr klass_reg, LIR_Opr result, ciInstanceKlass* klass, CodeEmitInfo* info, Runtime1::StubID stub_id) { | |
| 146 _result = result; | |
| 147 _klass = klass; | |
| 148 _klass_reg = klass_reg; | |
| 149 _info = new CodeEmitInfo(info); | |
| 150 assert(stub_id == Runtime1::new_instance_id || | |
| 151 stub_id == Runtime1::fast_new_instance_id || | |
| 152 stub_id == Runtime1::fast_new_instance_init_check_id, | |
| 153 "need new_instance id"); | |
| 154 _stub_id = stub_id; | |
| 155 } | |
| 156 | |
| 157 | |
| 158 void NewInstanceStub::emit_code(LIR_Assembler* ce) { | |
| 159 __ bind(_entry); | |
| 160 __ call(Runtime1::entry_for(_stub_id), relocInfo::runtime_call_type); | |
| 161 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
| 162 ce->add_call_info_here(_info); | |
| 163 ce->verify_oop_map(_info); | |
| 164 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
| 165 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
| 166 } | |
| 167 | |
| 168 | |
| 169 // Implementation of NewTypeArrayStub | |
| 170 NewTypeArrayStub::NewTypeArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { | |
| 171 _klass_reg = klass_reg; | |
| 172 _length = length; | |
| 173 _result = result; | |
| 174 _info = new CodeEmitInfo(info); | |
| 175 } | |
| 176 | |
| 177 | |
| 178 void NewTypeArrayStub::emit_code(LIR_Assembler* ce) { | |
| 179 __ bind(_entry); | |
| 180 | |
| 181 __ mov(_length->as_register(), G4); | |
| 182 __ call(Runtime1::entry_for(Runtime1::new_type_array_id), relocInfo::runtime_call_type); | |
| 183 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
| 184 ce->add_call_info_here(_info); | |
| 185 ce->verify_oop_map(_info); | |
| 186 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
| 187 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
| 188 } | |
| 189 | |
| 190 | |
| 191 // Implementation of NewObjectArrayStub | |
| 192 | |
| 193 NewObjectArrayStub::NewObjectArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info) { | |
| 194 _klass_reg = klass_reg; | |
| 195 _length = length; | |
| 196 _result = result; | |
| 197 _info = new CodeEmitInfo(info); | |
| 198 } | |
| 199 | |
| 200 | |
| 201 void NewObjectArrayStub::emit_code(LIR_Assembler* ce) { | |
| 202 __ bind(_entry); | |
| 203 | |
| 204 __ mov(_length->as_register(), G4); | |
| 205 __ call(Runtime1::entry_for(Runtime1::new_object_array_id), relocInfo::runtime_call_type); | |
| 206 __ delayed()->mov_or_nop(_klass_reg->as_register(), G5); | |
| 207 ce->add_call_info_here(_info); | |
| 208 ce->verify_oop_map(_info); | |
| 209 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
| 210 __ delayed()->mov_or_nop(O0, _result->as_register()); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 // Implementation of MonitorAccessStubs | |
| 215 MonitorEnterStub::MonitorEnterStub(LIR_Opr obj_reg, LIR_Opr lock_reg, CodeEmitInfo* info) | |
| 216 : MonitorAccessStub(obj_reg, lock_reg) { | |
| 217 _info = new CodeEmitInfo(info); | |
| 218 } | |
| 219 | |
| 220 | |
| 221 void MonitorEnterStub::emit_code(LIR_Assembler* ce) { | |
| 222 __ bind(_entry); | |
| 223 __ mov(_obj_reg->as_register(), G4); | |
| 224 if (ce->compilation()->has_fpu_code()) { | |
| 225 __ call(Runtime1::entry_for(Runtime1::monitorenter_id), relocInfo::runtime_call_type); | |
| 226 } else { | |
| 227 __ call(Runtime1::entry_for(Runtime1::monitorenter_nofpu_id), relocInfo::runtime_call_type); | |
| 228 } | |
| 229 __ delayed()->mov_or_nop(_lock_reg->as_register(), G5); | |
| 230 ce->add_call_info_here(_info); | |
| 231 ce->verify_oop_map(_info); | |
| 232 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
| 233 __ delayed()->nop(); | |
| 234 } | |
| 235 | |
| 236 | |
| 237 void MonitorExitStub::emit_code(LIR_Assembler* ce) { | |
| 238 __ bind(_entry); | |
| 239 if (_compute_lock) { | |
| 240 ce->monitor_address(_monitor_ix, _lock_reg); | |
| 241 } | |
| 242 if (ce->compilation()->has_fpu_code()) { | |
| 243 __ call(Runtime1::entry_for(Runtime1::monitorexit_id), relocInfo::runtime_call_type); | |
| 244 } else { | |
| 245 __ call(Runtime1::entry_for(Runtime1::monitorexit_nofpu_id), relocInfo::runtime_call_type); | |
| 246 } | |
| 247 | |
| 248 __ delayed()->mov_or_nop(_lock_reg->as_register(), G4); | |
| 249 __ br(Assembler::always, true, Assembler::pt, _continuation); | |
| 250 __ delayed()->nop(); | |
| 251 } | |
| 252 | |
| 253 // Implementation of patching: | |
| 254 // - Copy the code at given offset to an inlined buffer (first the bytes, then the number of bytes) | |
| 255 // - Replace original code with a call to the stub | |
| 256 // At Runtime: | |
| 257 // - call to stub, jump to runtime | |
| 258 // - in runtime: preserve all registers (especially objects, i.e., source and destination object) | |
| 259 // - in runtime: after initializing class, restore original code, reexecute instruction | |
| 260 | |
| 261 int PatchingStub::_patch_info_offset = -NativeGeneralJump::instruction_size; | |
| 262 | |
| 263 void PatchingStub::align_patch_site(MacroAssembler* ) { | |
| 264 // patch sites on sparc are always properly aligned. | |
| 265 } | |
| 266 | |
| 267 void PatchingStub::emit_code(LIR_Assembler* ce) { | |
| 268 // copy original code here | |
| 269 assert(NativeCall::instruction_size <= _bytes_to_copy && _bytes_to_copy <= 0xFF, | |
| 270 "not enough room for call"); | |
| 271 assert((_bytes_to_copy & 0x3) == 0, "must copy a multiple of four bytes"); | |
| 272 | |
| 273 Label call_patch; | |
| 274 | |
| 275 int being_initialized_entry = __ offset(); | |
| 276 | |
| 277 if (_id == load_klass_id) { | |
| 278 // produce a copy of the load klass instruction for use by the being initialized case | |
| 727 | 279 #ifdef ASSERT |
| 0 | 280 address start = __ pc(); |
| 727 | 281 #endif |
| 282 AddressLiteral addrlit(NULL, oop_Relocation::spec(_oop_index)); | |
| 283 __ patchable_set(addrlit, _obj); | |
| 0 | 284 |
| 285 #ifdef ASSERT | |
| 286 for (int i = 0; i < _bytes_to_copy; i++) { | |
| 287 address ptr = (address)(_pc_start + i); | |
| 288 int a_byte = (*ptr) & 0xFF; | |
| 289 assert(a_byte == *start++, "should be the same code"); | |
| 290 } | |
| 291 #endif | |
| 292 } else { | |
| 293 // make a copy the code which is going to be patched. | |
| 294 for (int i = 0; i < _bytes_to_copy; i++) { | |
| 295 address ptr = (address)(_pc_start + i); | |
| 296 int a_byte = (*ptr) & 0xFF; | |
| 297 __ a_byte (a_byte); | |
| 298 } | |
| 299 } | |
| 300 | |
| 301 address end_of_patch = __ pc(); | |
| 302 int bytes_to_skip = 0; | |
| 303 if (_id == load_klass_id) { | |
| 304 int offset = __ offset(); | |
| 305 if (CommentedAssembly) { | |
| 306 __ block_comment(" being_initialized check"); | |
| 307 } | |
| 308 | |
| 309 // static field accesses have special semantics while the class | |
| 310 // initializer is being run so we emit a test which can be used to | |
| 311 // check that this code is being executed by the initializing | |
| 312 // thread. | |
| 313 assert(_obj != noreg, "must be a valid register"); | |
| 314 assert(_oop_index >= 0, "must have oop index"); | |
| 315 __ ld_ptr(_obj, instanceKlass::init_thread_offset_in_bytes() + sizeof(klassOopDesc), G3); | |
| 316 __ cmp(G2_thread, G3); | |
| 317 __ br(Assembler::notEqual, false, Assembler::pn, call_patch); | |
| 318 __ delayed()->nop(); | |
| 319 | |
| 320 // load_klass patches may execute the patched code before it's | |
| 321 // copied back into place so we need to jump back into the main | |
| 322 // code of the nmethod to continue execution. | |
| 323 __ br(Assembler::always, false, Assembler::pt, _patch_site_continuation); | |
| 324 __ delayed()->nop(); | |
| 325 | |
| 326 // make sure this extra code gets skipped | |
| 327 bytes_to_skip += __ offset() - offset; | |
| 328 } | |
| 329 | |
| 330 // Now emit the patch record telling the runtime how to find the | |
| 331 // pieces of the patch. We only need 3 bytes but it has to be | |
| 332 // aligned as an instruction so emit 4 bytes. | |
| 333 int sizeof_patch_record = 4; | |
| 334 bytes_to_skip += sizeof_patch_record; | |
| 335 | |
| 336 // emit the offsets needed to find the code to patch | |
| 337 int being_initialized_entry_offset = __ offset() - being_initialized_entry + sizeof_patch_record; | |
| 338 | |
| 339 // Emit the patch record. We need to emit a full word, so emit an extra empty byte | |
| 340 __ a_byte(0); | |
| 341 __ a_byte(being_initialized_entry_offset); | |
| 342 __ a_byte(bytes_to_skip); | |
| 343 __ a_byte(_bytes_to_copy); | |
| 344 address patch_info_pc = __ pc(); | |
| 345 assert(patch_info_pc - end_of_patch == bytes_to_skip, "incorrect patch info"); | |
| 346 | |
| 347 address entry = __ pc(); | |
| 348 NativeGeneralJump::insert_unconditional((address)_pc_start, entry); | |
| 349 address target = NULL; | |
| 350 switch (_id) { | |
| 351 case access_field_id: target = Runtime1::entry_for(Runtime1::access_field_patching_id); break; | |
| 352 case load_klass_id: target = Runtime1::entry_for(Runtime1::load_klass_patching_id); break; | |
| 353 default: ShouldNotReachHere(); | |
| 354 } | |
| 355 __ bind(call_patch); | |
| 356 | |
| 357 if (CommentedAssembly) { | |
| 358 __ block_comment("patch entry point"); | |
| 359 } | |
| 360 __ call(target, relocInfo::runtime_call_type); | |
| 361 __ delayed()->nop(); | |
| 362 assert(_patch_info_offset == (patch_info_pc - __ pc()), "must not change"); | |
| 363 ce->add_call_info_here(_info); | |
| 364 __ br(Assembler::always, false, Assembler::pt, _patch_site_entry); | |
| 365 __ delayed()->nop(); | |
| 366 if (_id == load_klass_id) { | |
| 367 CodeSection* cs = __ code_section(); | |
| 368 address pc = (address)_pc_start; | |
| 369 RelocIterator iter(cs, pc, pc + 1); | |
| 370 relocInfo::change_reloc_info_for_address(&iter, (address) pc, relocInfo::oop_type, relocInfo::none); | |
| 371 | |
| 372 pc = (address)(_pc_start + NativeMovConstReg::add_offset); | |
| 373 RelocIterator iter2(cs, pc, pc+1); | |
| 374 relocInfo::change_reloc_info_for_address(&iter2, (address) pc, relocInfo::oop_type, relocInfo::none); | |
| 375 } | |
| 376 | |
| 377 } | |
| 378 | |
| 1295 | 379 |
| 380 void DeoptimizeStub::emit_code(LIR_Assembler* ce) { | |
| 381 __ bind(_entry); | |
| 382 __ call(SharedRuntime::deopt_blob()->unpack_with_reexecution()); | |
| 383 __ delayed()->nop(); | |
| 384 ce->add_call_info_here(_info); | |
| 385 debug_only(__ should_not_reach_here()); | |
| 386 } | |
| 387 | |
| 388 | |
| 0 | 389 void ArrayCopyStub::emit_code(LIR_Assembler* ce) { |
| 390 //---------------slow case: call to native----------------- | |
| 391 __ bind(_entry); | |
| 392 __ mov(src()->as_register(), O0); | |
| 393 __ mov(src_pos()->as_register(), O1); | |
| 394 __ mov(dst()->as_register(), O2); | |
| 395 __ mov(dst_pos()->as_register(), O3); | |
| 396 __ mov(length()->as_register(), O4); | |
| 397 | |
| 398 ce->emit_static_call_stub(); | |
| 399 | |
| 400 __ call(SharedRuntime::get_resolve_static_call_stub(), relocInfo::static_call_type); | |
| 401 __ delayed()->nop(); | |
| 402 ce->add_call_info_here(info()); | |
| 403 ce->verify_oop_map(info()); | |
| 404 | |
| 405 #ifndef PRODUCT | |
| 406 __ set((intptr_t)&Runtime1::_arraycopy_slowcase_cnt, O0); | |
| 407 __ ld(O0, 0, O1); | |
| 408 __ inc(O1); | |
| 409 __ st(O1, 0, O0); | |
| 410 #endif | |
| 411 | |
| 412 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
| 413 __ delayed()->nop(); | |
| 414 } | |
| 415 | |
| 416 | |
| 342 | 417 /////////////////////////////////////////////////////////////////////////////////// |
| 418 #ifndef SERIALGC | |
| 419 | |
| 420 void G1PreBarrierStub::emit_code(LIR_Assembler* ce) { | |
| 421 __ bind(_entry); | |
| 422 | |
| 423 assert(pre_val()->is_register(), "Precondition."); | |
| 424 | |
| 425 Register pre_val_reg = pre_val()->as_register(); | |
| 426 | |
| 427 ce->mem2reg(addr(), pre_val(), T_OBJECT, patch_code(), info(), false); | |
| 428 __ br_on_reg_cond(Assembler::rc_z, /*annul*/false, Assembler::pt, | |
| 429 pre_val_reg, _continuation); | |
| 430 __ delayed()->nop(); | |
| 431 | |
| 432 __ call(Runtime1::entry_for(Runtime1::Runtime1::g1_pre_barrier_slow_id)); | |
| 433 __ delayed()->mov(pre_val_reg, G4); | |
| 434 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
| 435 __ delayed()->nop(); | |
| 436 | |
| 437 } | |
| 438 | |
| 439 jbyte* G1PostBarrierStub::_byte_map_base = NULL; | |
| 440 | |
| 441 jbyte* G1PostBarrierStub::byte_map_base_slow() { | |
| 442 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 443 assert(bs->is_a(BarrierSet::G1SATBCTLogging), | |
| 444 "Must be if we're using this."); | |
| 445 return ((G1SATBCardTableModRefBS*)bs)->byte_map_base; | |
| 446 } | |
| 447 | |
| 448 void G1PostBarrierStub::emit_code(LIR_Assembler* ce) { | |
| 449 __ bind(_entry); | |
| 450 | |
| 451 assert(addr()->is_register(), "Precondition."); | |
| 452 assert(new_val()->is_register(), "Precondition."); | |
| 453 Register addr_reg = addr()->as_pointer_register(); | |
| 454 Register new_val_reg = new_val()->as_register(); | |
| 455 __ br_on_reg_cond(Assembler::rc_z, /*annul*/false, Assembler::pt, | |
| 456 new_val_reg, _continuation); | |
| 457 __ delayed()->nop(); | |
| 458 | |
| 459 __ call(Runtime1::entry_for(Runtime1::Runtime1::g1_post_barrier_slow_id)); | |
| 460 __ delayed()->mov(addr_reg, G4); | |
| 461 __ br(Assembler::always, false, Assembler::pt, _continuation); | |
| 462 __ delayed()->nop(); | |
| 463 } | |
| 464 | |
| 465 #endif // SERIALGC | |
| 466 /////////////////////////////////////////////////////////////////////////////////// | |
| 467 | |
| 0 | 468 #undef __ |