Mercurial > hg > truffle
annotate src/cpu/sparc/vm/c1_Runtime1_sparc.cpp @ 17524:89152779163c
Merge with jdk8-b132
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Wed, 15 Oct 2014 11:59:32 +0200 |
| parents | 4ca6dc0799b6 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 17524 | 2 * Copyright (c) 1999, 2013, 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 |
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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 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "c1/c1_Defs.hpp" | |
| 27 #include "c1/c1_MacroAssembler.hpp" | |
| 28 #include "c1/c1_Runtime1.hpp" | |
| 29 #include "interpreter/interpreter.hpp" | |
| 30 #include "nativeInst_sparc.hpp" | |
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31 #include "oops/compiledICHolder.hpp" |
| 1972 | 32 #include "oops/oop.inline.hpp" |
| 33 #include "prims/jvmtiExport.hpp" | |
| 34 #include "register_sparc.hpp" | |
| 35 #include "runtime/sharedRuntime.hpp" | |
| 36 #include "runtime/signature.hpp" | |
| 37 #include "runtime/vframeArray.hpp" | |
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38 #include "utilities/macros.hpp" |
| 1972 | 39 #include "vmreg_sparc.inline.hpp" |
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40 #if INCLUDE_ALL_GCS |
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41 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" |
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42 #endif |
| 0 | 43 |
| 44 // Implementation of StubAssembler | |
| 45 | |
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46 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry_point, int number_of_arguments) { |
| 0 | 47 // for sparc changing the number of arguments doesn't change |
| 48 // anything about the frame size so we'll always lie and claim that | |
| 49 // we are only passing 1 argument. | |
| 50 set_num_rt_args(1); | |
| 51 | |
| 52 assert_not_delayed(); | |
| 53 // bang stack before going to runtime | |
| 54 set(-os::vm_page_size() + STACK_BIAS, G3_scratch); | |
| 55 st(G0, SP, G3_scratch); | |
| 56 | |
| 57 // debugging support | |
| 58 assert(number_of_arguments >= 0 , "cannot have negative number of arguments"); | |
| 59 | |
| 60 set_last_Java_frame(SP, noreg); | |
| 61 if (VerifyThread) mov(G2_thread, O0); // about to be smashed; pass early | |
| 62 save_thread(L7_thread_cache); | |
| 63 // do the call | |
| 64 call(entry_point, relocInfo::runtime_call_type); | |
| 65 if (!VerifyThread) { | |
| 66 delayed()->mov(G2_thread, O0); // pass thread as first argument | |
| 67 } else { | |
| 68 delayed()->nop(); // (thread already passed) | |
| 69 } | |
| 70 int call_offset = offset(); // offset of return address | |
| 71 restore_thread(L7_thread_cache); | |
| 72 reset_last_Java_frame(); | |
| 73 | |
| 74 // check for pending exceptions | |
| 75 { Label L; | |
| 727 | 76 Address exception_addr(G2_thread, Thread::pending_exception_offset()); |
| 0 | 77 ld_ptr(exception_addr, Gtemp); |
| 3839 | 78 br_null_short(Gtemp, pt, L); |
| 727 | 79 Address vm_result_addr(G2_thread, JavaThread::vm_result_offset()); |
| 0 | 80 st_ptr(G0, vm_result_addr); |
| 727 | 81 Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset()); |
| 0 | 82 st_ptr(G0, vm_result_addr_2); |
| 83 | |
| 84 if (frame_size() == no_frame_size) { | |
| 85 // we use O7 linkage so that forward_exception_entry has the issuing PC | |
| 86 call(StubRoutines::forward_exception_entry(), relocInfo::runtime_call_type); | |
| 87 delayed()->restore(); | |
| 88 } else if (_stub_id == Runtime1::forward_exception_id) { | |
| 89 should_not_reach_here(); | |
| 90 } else { | |
| 727 | 91 AddressLiteral exc(Runtime1::entry_for(Runtime1::forward_exception_id)); |
| 92 jump_to(exc, G4); | |
| 0 | 93 delayed()->nop(); |
| 94 } | |
| 95 bind(L); | |
| 96 } | |
| 97 | |
| 98 // get oop result if there is one and reset the value in the thread | |
| 99 if (oop_result1->is_valid()) { // get oop result if there is one and reset it in the thread | |
| 100 get_vm_result (oop_result1); | |
| 101 } else { | |
| 102 // be a little paranoid and clear the result | |
| 727 | 103 Address vm_result_addr(G2_thread, JavaThread::vm_result_offset()); |
| 0 | 104 st_ptr(G0, vm_result_addr); |
| 105 } | |
| 106 | |
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107 // get second result if there is one and reset the value in the thread |
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108 if (metadata_result->is_valid()) { |
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109 get_vm_result_2 (metadata_result); |
| 0 | 110 } else { |
| 111 // be a little paranoid and clear the result | |
| 727 | 112 Address vm_result_addr_2(G2_thread, JavaThread::vm_result_2_offset()); |
| 0 | 113 st_ptr(G0, vm_result_addr_2); |
| 114 } | |
| 115 | |
| 116 return call_offset; | |
| 117 } | |
| 118 | |
| 119 | |
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120 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1) { |
| 0 | 121 // O0 is reserved for the thread |
| 122 mov(arg1, O1); | |
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123 return call_RT(oop_result1, metadata_result, entry, 1); |
| 0 | 124 } |
| 125 | |
| 126 | |
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127 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2) { |
| 0 | 128 // O0 is reserved for the thread |
| 129 mov(arg1, O1); | |
| 130 mov(arg2, O2); assert(arg2 != O1, "smashed argument"); | |
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131 return call_RT(oop_result1, metadata_result, entry, 2); |
| 0 | 132 } |
| 133 | |
| 134 | |
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135 int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3) { |
| 0 | 136 // O0 is reserved for the thread |
| 137 mov(arg1, O1); | |
| 138 mov(arg2, O2); assert(arg2 != O1, "smashed argument"); | |
| 139 mov(arg3, O3); assert(arg3 != O1 && arg3 != O2, "smashed argument"); | |
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140 return call_RT(oop_result1, metadata_result, entry, 3); |
| 0 | 141 } |
| 142 | |
| 143 | |
| 144 // Implementation of Runtime1 | |
| 145 | |
| 146 #define __ sasm-> | |
| 147 | |
| 148 static int cpu_reg_save_offsets[FrameMap::nof_cpu_regs]; | |
| 149 static int fpu_reg_save_offsets[FrameMap::nof_fpu_regs]; | |
| 150 static int reg_save_size_in_words; | |
| 151 static int frame_size_in_bytes = -1; | |
| 152 | |
| 153 static OopMap* generate_oop_map(StubAssembler* sasm, bool save_fpu_registers) { | |
| 154 assert(frame_size_in_bytes == __ total_frame_size_in_bytes(reg_save_size_in_words), | |
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155 "mismatch in calculation"); |
| 0 | 156 sasm->set_frame_size(frame_size_in_bytes / BytesPerWord); |
| 157 int frame_size_in_slots = frame_size_in_bytes / sizeof(jint); | |
| 158 OopMap* oop_map = new OopMap(frame_size_in_slots, 0); | |
| 159 | |
| 160 int i; | |
| 161 for (i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 162 Register r = as_Register(i); | |
| 163 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 164 int sp_offset = cpu_reg_save_offsets[i]; | |
| 165 oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset), | |
| 166 r->as_VMReg()); | |
| 167 } | |
| 168 } | |
| 169 | |
| 170 if (save_fpu_registers) { | |
| 171 for (i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 172 FloatRegister r = as_FloatRegister(i); | |
| 173 int sp_offset = fpu_reg_save_offsets[i]; | |
| 174 oop_map->set_callee_saved(VMRegImpl::stack2reg(sp_offset), | |
| 175 r->as_VMReg()); | |
| 176 } | |
| 177 } | |
| 178 return oop_map; | |
| 179 } | |
| 180 | |
| 181 static OopMap* save_live_registers(StubAssembler* sasm, bool save_fpu_registers = true) { | |
| 182 assert(frame_size_in_bytes == __ total_frame_size_in_bytes(reg_save_size_in_words), | |
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183 "mismatch in calculation"); |
| 0 | 184 __ save_frame_c1(frame_size_in_bytes); |
| 185 | |
| 186 // Record volatile registers as callee-save values in an OopMap so their save locations will be | |
| 187 // propagated to the caller frame's RegisterMap during StackFrameStream construction (needed for | |
| 188 // deoptimization; see compiledVFrame::create_stack_value). The caller's I, L and O registers | |
| 189 // are saved in register windows - I's and L's in the caller's frame and O's in the stub frame | |
| 190 // (as the stub's I's) when the runtime routine called by the stub creates its frame. | |
| 191 // OopMap frame sizes are in c2 stack slot sizes (sizeof(jint)) | |
| 192 | |
| 193 int i; | |
| 194 for (i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 195 Register r = as_Register(i); | |
| 196 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 197 int sp_offset = cpu_reg_save_offsets[i]; | |
| 198 __ st_ptr(r, SP, (sp_offset * BytesPerWord) + STACK_BIAS); | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 if (save_fpu_registers) { | |
| 203 for (i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 204 FloatRegister r = as_FloatRegister(i); | |
| 205 int sp_offset = fpu_reg_save_offsets[i]; | |
| 206 __ stf(FloatRegisterImpl::S, r, SP, (sp_offset * BytesPerWord) + STACK_BIAS); | |
| 207 } | |
| 208 } | |
| 209 | |
| 210 return generate_oop_map(sasm, save_fpu_registers); | |
| 211 } | |
| 212 | |
| 213 static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true) { | |
| 214 for (int i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 215 Register r = as_Register(i); | |
| 216 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 217 __ ld_ptr(SP, (cpu_reg_save_offsets[i] * BytesPerWord) + STACK_BIAS, r); | |
| 218 } | |
| 219 } | |
| 220 | |
| 221 if (restore_fpu_registers) { | |
| 222 for (int i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 223 FloatRegister r = as_FloatRegister(i); | |
| 224 __ ldf(FloatRegisterImpl::S, SP, (fpu_reg_save_offsets[i] * BytesPerWord) + STACK_BIAS, r); | |
| 225 } | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 | |
| 230 void Runtime1::initialize_pd() { | |
| 231 // compute word offsets from SP at which live (non-windowed) registers are captured by stub routines | |
| 232 // | |
| 233 // A stub routine will have a frame that is at least large enough to hold | |
| 234 // a register window save area (obviously) and the volatile g registers | |
| 235 // and floating registers. A user of save_live_registers can have a frame | |
| 236 // that has more scratch area in it (although typically they will use L-regs). | |
| 237 // in that case the frame will look like this (stack growing down) | |
| 238 // | |
| 239 // FP -> | | | |
| 240 // | scratch mem | | |
| 241 // | " " | | |
| 242 // -------------- | |
| 243 // | float regs | | |
| 244 // | " " | | |
| 245 // --------------- | |
| 246 // | G regs | | |
| 247 // | " " | | |
| 248 // --------------- | |
| 249 // | abi reg. | | |
| 250 // | window save | | |
| 251 // | area | | |
| 252 // SP -> --------------- | |
| 253 // | |
| 254 int i; | |
| 255 int sp_offset = round_to(frame::register_save_words, 2); // start doubleword aligned | |
| 256 | |
| 257 // only G int registers are saved explicitly; others are found in register windows | |
| 258 for (i = 0; i < FrameMap::nof_cpu_regs; i++) { | |
| 259 Register r = as_Register(i); | |
| 260 if (r == G1 || r == G3 || r == G4 || r == G5) { | |
| 261 cpu_reg_save_offsets[i] = sp_offset; | |
| 262 sp_offset++; | |
| 263 } | |
| 264 } | |
| 265 | |
| 266 // all float registers are saved explicitly | |
| 267 assert(FrameMap::nof_fpu_regs == 32, "double registers not handled here"); | |
| 268 for (i = 0; i < FrameMap::nof_fpu_regs; i++) { | |
| 269 fpu_reg_save_offsets[i] = sp_offset; | |
| 270 sp_offset++; | |
| 271 } | |
| 272 reg_save_size_in_words = sp_offset - frame::memory_parameter_word_sp_offset; | |
| 273 // this should match assembler::total_frame_size_in_bytes, which | |
| 274 // isn't callable from this context. It's checked by an assert when | |
| 275 // it's used though. | |
| 276 frame_size_in_bytes = align_size_up(sp_offset * wordSize, 8); | |
| 277 } | |
| 278 | |
| 279 | |
| 280 OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) { | |
| 281 // make a frame and preserve the caller's caller-save registers | |
| 282 OopMap* oop_map = save_live_registers(sasm); | |
| 283 int call_offset; | |
| 284 if (!has_argument) { | |
| 285 call_offset = __ call_RT(noreg, noreg, target); | |
| 286 } else { | |
| 287 call_offset = __ call_RT(noreg, noreg, target, G4); | |
| 288 } | |
| 289 OopMapSet* oop_maps = new OopMapSet(); | |
| 290 oop_maps->add_gc_map(call_offset, oop_map); | |
| 291 | |
| 292 __ should_not_reach_here(); | |
| 293 return oop_maps; | |
| 294 } | |
| 295 | |
| 296 | |
| 297 OopMapSet* Runtime1::generate_stub_call(StubAssembler* sasm, Register result, address target, | |
| 298 Register arg1, Register arg2, Register arg3) { | |
| 299 // make a frame and preserve the caller's caller-save registers | |
| 300 OopMap* oop_map = save_live_registers(sasm); | |
| 301 | |
| 302 int call_offset; | |
| 303 if (arg1 == noreg) { | |
| 304 call_offset = __ call_RT(result, noreg, target); | |
| 305 } else if (arg2 == noreg) { | |
| 306 call_offset = __ call_RT(result, noreg, target, arg1); | |
| 307 } else if (arg3 == noreg) { | |
| 308 call_offset = __ call_RT(result, noreg, target, arg1, arg2); | |
| 309 } else { | |
| 310 call_offset = __ call_RT(result, noreg, target, arg1, arg2, arg3); | |
| 311 } | |
| 312 OopMapSet* oop_maps = NULL; | |
| 313 | |
| 314 oop_maps = new OopMapSet(); | |
| 315 oop_maps->add_gc_map(call_offset, oop_map); | |
| 316 restore_live_registers(sasm); | |
| 317 | |
| 318 __ ret(); | |
| 319 __ delayed()->restore(); | |
| 320 | |
| 321 return oop_maps; | |
| 322 } | |
| 323 | |
| 324 | |
| 325 OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) { | |
| 326 // make a frame and preserve the caller's caller-save registers | |
| 327 OopMap* oop_map = save_live_registers(sasm); | |
| 328 | |
| 329 // call the runtime patching routine, returns non-zero if nmethod got deopted. | |
| 330 int call_offset = __ call_RT(noreg, noreg, target); | |
| 331 OopMapSet* oop_maps = new OopMapSet(); | |
| 332 oop_maps->add_gc_map(call_offset, oop_map); | |
| 333 | |
| 334 // re-execute the patched instruction or, if the nmethod was deoptmized, return to the | |
| 335 // deoptimization handler entry that will cause re-execution of the current bytecode | |
| 336 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); | |
| 337 assert(deopt_blob != NULL, "deoptimization blob must have been created"); | |
| 338 | |
| 339 Label no_deopt; | |
| 3839 | 340 __ br_null_short(O0, Assembler::pt, no_deopt); |
| 0 | 341 |
| 342 // return to the deoptimization handler entry for unpacking and rexecute | |
| 343 // if we simply returned the we'd deopt as if any call we patched had just | |
| 344 // returned. | |
| 345 | |
| 346 restore_live_registers(sasm); | |
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347 |
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348 AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
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349 __ jump_to(dest, O0); |
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350 __ delayed()->restore(); |
| 0 | 351 |
| 352 __ bind(no_deopt); | |
| 353 restore_live_registers(sasm); | |
| 354 __ ret(); | |
| 355 __ delayed()->restore(); | |
| 356 | |
| 357 return oop_maps; | |
| 358 } | |
| 359 | |
| 360 OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) { | |
| 361 | |
| 362 OopMapSet* oop_maps = NULL; | |
| 363 // for better readability | |
| 364 const bool must_gc_arguments = true; | |
| 365 const bool dont_gc_arguments = false; | |
| 366 | |
| 367 // stub code & info for the different stubs | |
| 368 switch (id) { | |
| 369 case forward_exception_id: | |
| 370 { | |
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371 oop_maps = generate_handle_exception(id, sasm); |
| 0 | 372 } |
| 373 break; | |
| 374 | |
| 375 case new_instance_id: | |
| 376 case fast_new_instance_id: | |
| 377 case fast_new_instance_init_check_id: | |
| 378 { | |
| 379 Register G5_klass = G5; // Incoming | |
| 380 Register O0_obj = O0; // Outgoing | |
| 381 | |
| 382 if (id == new_instance_id) { | |
| 383 __ set_info("new_instance", dont_gc_arguments); | |
| 384 } else if (id == fast_new_instance_id) { | |
| 385 __ set_info("fast new_instance", dont_gc_arguments); | |
| 386 } else { | |
| 387 assert(id == fast_new_instance_init_check_id, "bad StubID"); | |
| 388 __ set_info("fast new_instance init check", dont_gc_arguments); | |
| 389 } | |
| 390 | |
| 391 if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) && | |
| 392 UseTLAB && FastTLABRefill) { | |
| 393 Label slow_path; | |
| 394 Register G1_obj_size = G1; | |
| 395 Register G3_t1 = G3; | |
| 396 Register G4_t2 = G4; | |
| 397 assert_different_registers(G5_klass, G1_obj_size, G3_t1, G4_t2); | |
| 398 | |
| 399 // Push a frame since we may do dtrace notification for the | |
| 400 // allocation which requires calling out and we don't want | |
| 401 // to stomp the real return address. | |
| 402 __ save_frame(0); | |
| 403 | |
| 404 if (id == fast_new_instance_init_check_id) { | |
| 405 // make sure the klass is initialized | |
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406 __ ldub(G5_klass, in_bytes(InstanceKlass::init_state_offset()), G3_t1); |
| 12955 | 407 __ cmp(G3_t1, InstanceKlass::fully_initialized); |
| 408 __ br(Assembler::notEqual, false, Assembler::pn, slow_path); | |
| 409 __ delayed()->nop(); | |
| 0 | 410 } |
| 411 #ifdef ASSERT | |
| 412 // assert object can be fast path allocated | |
| 413 { | |
| 414 Label ok, not_ok; | |
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415 __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
| 3839 | 416 // make sure it's an instance (LH > 0) |
| 417 __ cmp_and_br_short(G1_obj_size, 0, Assembler::lessEqual, Assembler::pn, not_ok); | |
| 0 | 418 __ btst(Klass::_lh_instance_slow_path_bit, G1_obj_size); |
| 419 __ br(Assembler::zero, false, Assembler::pn, ok); | |
| 420 __ delayed()->nop(); | |
| 421 __ bind(not_ok); | |
| 422 __ stop("assert(can be fast path allocated)"); | |
| 423 __ should_not_reach_here(); | |
| 424 __ bind(ok); | |
| 425 } | |
| 426 #endif // ASSERT | |
| 427 // if we got here then the TLAB allocation failed, so try | |
| 428 // refilling the TLAB or allocating directly from eden. | |
| 429 Label retry_tlab, try_eden; | |
| 430 __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G5_klass | |
| 431 | |
| 432 __ bind(retry_tlab); | |
| 433 | |
| 434 // get the instance size | |
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435 __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
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436 |
| 0 | 437 __ tlab_allocate(O0_obj, G1_obj_size, 0, G3_t1, slow_path); |
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438 |
| 0 | 439 __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2); |
| 440 __ verify_oop(O0_obj); | |
| 441 __ mov(O0, I0); | |
| 442 __ ret(); | |
| 443 __ delayed()->restore(); | |
| 444 | |
| 445 __ bind(try_eden); | |
| 446 // get the instance size | |
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447 __ ld(G5_klass, in_bytes(Klass::layout_helper_offset()), G1_obj_size); |
| 0 | 448 __ eden_allocate(O0_obj, G1_obj_size, 0, G3_t1, G4_t2, slow_path); |
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449 __ incr_allocated_bytes(G1_obj_size, G3_t1, G4_t2); |
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450 |
| 0 | 451 __ initialize_object(O0_obj, G5_klass, G1_obj_size, 0, G3_t1, G4_t2); |
| 452 __ verify_oop(O0_obj); | |
| 453 __ mov(O0, I0); | |
| 454 __ ret(); | |
| 455 __ delayed()->restore(); | |
| 456 | |
| 457 __ bind(slow_path); | |
| 458 | |
| 459 // pop this frame so generate_stub_call can push it's own | |
| 460 __ restore(); | |
| 461 } | |
| 462 | |
| 463 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_instance), G5_klass); | |
| 464 // I0->O0: new instance | |
| 465 } | |
| 466 | |
| 467 break; | |
| 468 | |
| 469 case counter_overflow_id: | |
| 1783 | 470 // G4 contains bci, G5 contains method |
| 471 oop_maps = generate_stub_call(sasm, noreg, CAST_FROM_FN_PTR(address, counter_overflow), G4, G5); | |
| 0 | 472 break; |
| 473 | |
| 474 case new_type_array_id: | |
| 475 case new_object_array_id: | |
| 476 { | |
| 477 Register G5_klass = G5; // Incoming | |
| 478 Register G4_length = G4; // Incoming | |
| 479 Register O0_obj = O0; // Outgoing | |
| 480 | |
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481 Address klass_lh(G5_klass, Klass::layout_helper_offset()); |
| 0 | 482 assert(Klass::_lh_header_size_shift % BitsPerByte == 0, "bytewise"); |
| 483 assert(Klass::_lh_header_size_mask == 0xFF, "bytewise"); | |
| 484 // Use this offset to pick out an individual byte of the layout_helper: | |
| 485 const int klass_lh_header_size_offset = ((BytesPerInt - 1) // 3 - 2 selects byte {0,1,0,0} | |
| 486 - Klass::_lh_header_size_shift / BitsPerByte); | |
| 487 | |
| 488 if (id == new_type_array_id) { | |
| 489 __ set_info("new_type_array", dont_gc_arguments); | |
| 490 } else { | |
| 491 __ set_info("new_object_array", dont_gc_arguments); | |
| 492 } | |
| 493 | |
| 494 #ifdef ASSERT | |
| 495 // assert object type is really an array of the proper kind | |
| 496 { | |
| 497 Label ok; | |
| 498 Register G3_t1 = G3; | |
| 499 __ ld(klass_lh, G3_t1); | |
| 500 __ sra(G3_t1, Klass::_lh_array_tag_shift, G3_t1); | |
| 501 int tag = ((id == new_type_array_id) | |
| 502 ? Klass::_lh_array_tag_type_value | |
| 503 : Klass::_lh_array_tag_obj_value); | |
| 3839 | 504 __ cmp_and_brx_short(G3_t1, tag, Assembler::equal, Assembler::pt, ok); |
| 0 | 505 __ stop("assert(is an array klass)"); |
| 506 __ should_not_reach_here(); | |
| 507 __ bind(ok); | |
| 508 } | |
| 509 #endif // ASSERT | |
| 510 | |
| 511 if (UseTLAB && FastTLABRefill) { | |
| 512 Label slow_path; | |
| 513 Register G1_arr_size = G1; | |
| 514 Register G3_t1 = G3; | |
| 515 Register O1_t2 = O1; | |
| 516 assert_different_registers(G5_klass, G4_length, G1_arr_size, G3_t1, O1_t2); | |
| 517 | |
| 518 // check that array length is small enough for fast path | |
| 519 __ set(C1_MacroAssembler::max_array_allocation_length, G3_t1); | |
| 12955 | 520 __ cmp(G4_length, G3_t1); |
| 521 __ br(Assembler::greaterUnsigned, false, Assembler::pn, slow_path); | |
| 522 __ delayed()->nop(); | |
| 0 | 523 |
| 524 // if we got here then the TLAB allocation failed, so try | |
| 525 // refilling the TLAB or allocating directly from eden. | |
| 526 Label retry_tlab, try_eden; | |
| 527 __ tlab_refill(retry_tlab, try_eden, slow_path); // preserves G4_length and G5_klass | |
| 528 | |
| 529 __ bind(retry_tlab); | |
| 530 | |
| 531 // get the allocation size: (length << (layout_helper & 0x1F)) + header_size | |
| 532 __ ld(klass_lh, G3_t1); | |
| 533 __ sll(G4_length, G3_t1, G1_arr_size); | |
| 534 __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1); | |
| 535 __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1); | |
| 536 __ add(G1_arr_size, G3_t1, G1_arr_size); | |
| 537 __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size); // align up | |
| 538 __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size); | |
| 539 | |
| 540 __ tlab_allocate(O0_obj, G1_arr_size, 0, G3_t1, slow_path); // preserves G1_arr_size | |
| 541 | |
| 542 __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2); | |
| 543 __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset); | |
| 544 __ sub(G1_arr_size, G3_t1, O1_t2); // body length | |
| 545 __ add(O0_obj, G3_t1, G3_t1); // body start | |
| 546 __ initialize_body(G3_t1, O1_t2); | |
| 547 __ verify_oop(O0_obj); | |
| 548 __ retl(); | |
| 549 __ delayed()->nop(); | |
| 550 | |
| 551 __ bind(try_eden); | |
| 552 // get the allocation size: (length << (layout_helper & 0x1F)) + header_size | |
| 553 __ ld(klass_lh, G3_t1); | |
| 554 __ sll(G4_length, G3_t1, G1_arr_size); | |
| 555 __ srl(G3_t1, Klass::_lh_header_size_shift, G3_t1); | |
| 556 __ and3(G3_t1, Klass::_lh_header_size_mask, G3_t1); | |
| 557 __ add(G1_arr_size, G3_t1, G1_arr_size); | |
| 558 __ add(G1_arr_size, MinObjAlignmentInBytesMask, G1_arr_size); | |
| 559 __ and3(G1_arr_size, ~MinObjAlignmentInBytesMask, G1_arr_size); | |
| 560 | |
| 561 __ eden_allocate(O0_obj, G1_arr_size, 0, G3_t1, O1_t2, slow_path); // preserves G1_arr_size | |
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562 __ incr_allocated_bytes(G1_arr_size, G3_t1, O1_t2); |
| 0 | 563 |
| 564 __ initialize_header(O0_obj, G5_klass, G4_length, G3_t1, O1_t2); | |
| 565 __ ldub(klass_lh, G3_t1, klass_lh_header_size_offset); | |
| 566 __ sub(G1_arr_size, G3_t1, O1_t2); // body length | |
| 567 __ add(O0_obj, G3_t1, G3_t1); // body start | |
| 568 __ initialize_body(G3_t1, O1_t2); | |
| 569 __ verify_oop(O0_obj); | |
| 570 __ retl(); | |
| 571 __ delayed()->nop(); | |
| 572 | |
| 573 __ bind(slow_path); | |
| 574 } | |
| 575 | |
| 576 if (id == new_type_array_id) { | |
| 577 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_type_array), G5_klass, G4_length); | |
| 578 } else { | |
| 579 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_object_array), G5_klass, G4_length); | |
| 580 } | |
| 581 // I0 -> O0: new array | |
| 582 } | |
| 583 break; | |
| 584 | |
| 585 case new_multi_array_id: | |
| 586 { // O0: klass | |
| 587 // O1: rank | |
| 588 // O2: address of 1st dimension | |
| 589 __ set_info("new_multi_array", dont_gc_arguments); | |
| 590 oop_maps = generate_stub_call(sasm, I0, CAST_FROM_FN_PTR(address, new_multi_array), I0, I1, I2); | |
| 591 // I0 -> O0: new multi array | |
| 592 } | |
| 593 break; | |
| 594 | |
| 595 case register_finalizer_id: | |
| 596 { | |
| 597 __ set_info("register_finalizer", dont_gc_arguments); | |
| 598 | |
| 599 // load the klass and check the has finalizer flag | |
| 600 Label register_finalizer; | |
| 601 Register t = O1; | |
| 2002 | 602 __ load_klass(O0, t); |
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603 __ ld(t, in_bytes(Klass::access_flags_offset()), t); |
| 0 | 604 __ set(JVM_ACC_HAS_FINALIZER, G3); |
| 605 __ andcc(G3, t, G0); | |
| 606 __ br(Assembler::notZero, false, Assembler::pt, register_finalizer); | |
| 607 __ delayed()->nop(); | |
| 608 | |
| 609 // do a leaf return | |
| 610 __ retl(); | |
| 611 __ delayed()->nop(); | |
| 612 | |
| 613 __ bind(register_finalizer); | |
| 614 OopMap* oop_map = save_live_registers(sasm); | |
| 615 int call_offset = __ call_RT(noreg, noreg, | |
| 616 CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), I0); | |
| 617 oop_maps = new OopMapSet(); | |
| 618 oop_maps->add_gc_map(call_offset, oop_map); | |
| 619 | |
| 620 // Now restore all the live registers | |
| 621 restore_live_registers(sasm); | |
| 622 | |
| 623 __ ret(); | |
| 624 __ delayed()->restore(); | |
| 625 } | |
| 626 break; | |
| 627 | |
| 628 case throw_range_check_failed_id: | |
| 629 { __ set_info("range_check_failed", dont_gc_arguments); // arguments will be discarded | |
| 630 // G4: index | |
| 631 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true); | |
| 632 } | |
| 633 break; | |
| 634 | |
| 635 case throw_index_exception_id: | |
| 636 { __ set_info("index_range_check_failed", dont_gc_arguments); // arguments will be discarded | |
| 637 // G4: index | |
| 638 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true); | |
| 639 } | |
| 640 break; | |
| 641 | |
| 642 case throw_div0_exception_id: | |
| 643 { __ set_info("throw_div0_exception", dont_gc_arguments); | |
| 644 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false); | |
| 645 } | |
| 646 break; | |
| 647 | |
| 648 case throw_null_pointer_exception_id: | |
| 649 { __ set_info("throw_null_pointer_exception", dont_gc_arguments); | |
| 650 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false); | |
| 651 } | |
| 652 break; | |
| 653 | |
| 654 case handle_exception_id: | |
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655 { __ set_info("handle_exception", dont_gc_arguments); |
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656 oop_maps = generate_handle_exception(id, sasm); |
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657 } |
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658 break; |
| 0 | 659 |
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660 case handle_exception_from_callee_id: |
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661 { __ set_info("handle_exception_from_callee", dont_gc_arguments); |
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662 oop_maps = generate_handle_exception(id, sasm); |
| 0 | 663 } |
| 664 break; | |
| 665 | |
| 666 case unwind_exception_id: | |
| 667 { | |
| 668 // O0: exception | |
| 669 // I7: address of call to this method | |
| 670 | |
| 671 __ set_info("unwind_exception", dont_gc_arguments); | |
| 672 __ mov(Oexception, Oexception->after_save()); | |
| 673 __ add(I7, frame::pc_return_offset, Oissuing_pc->after_save()); | |
| 674 | |
| 675 __ call_VM_leaf(L7_thread_cache, CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), | |
| 1295 | 676 G2_thread, Oissuing_pc->after_save()); |
| 0 | 677 __ verify_not_null_oop(Oexception->after_save()); |
| 1564 | 678 |
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679 // Restore SP from L7 if the exception PC is a method handle call site. |
| 1564 | 680 __ mov(O0, G5); // Save the target address. |
| 681 __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), L0); | |
| 682 __ tst(L0); // Condition codes are preserved over the restore. | |
| 683 __ restore(); | |
| 684 | |
| 685 __ jmp(G5, 0); | |
| 686 __ delayed()->movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP); // Restore SP if required. | |
| 0 | 687 } |
| 688 break; | |
| 689 | |
| 690 case throw_array_store_exception_id: | |
| 691 { | |
| 692 __ set_info("throw_array_store_exception", dont_gc_arguments); | |
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693 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true); |
| 0 | 694 } |
| 695 break; | |
| 696 | |
| 697 case throw_class_cast_exception_id: | |
| 698 { | |
| 699 // G4: object | |
| 700 __ set_info("throw_class_cast_exception", dont_gc_arguments); | |
| 701 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true); | |
| 702 } | |
| 703 break; | |
| 704 | |
| 705 case throw_incompatible_class_change_error_id: | |
| 706 { | |
| 707 __ set_info("throw_incompatible_class_cast_exception", dont_gc_arguments); | |
| 708 oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false); | |
| 709 } | |
| 710 break; | |
| 711 | |
| 712 case slow_subtype_check_id: | |
| 713 { // Support for uint StubRoutine::partial_subtype_check( Klass sub, Klass super ); | |
| 714 // Arguments : | |
| 715 // | |
| 716 // ret : G3 | |
| 717 // sub : G3, argument, destroyed | |
| 718 // super: G1, argument, not changed | |
| 719 // raddr: O7, blown by call | |
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720 Label miss; |
| 0 | 721 |
| 722 __ save_frame(0); // Blow no registers! | |
| 723 | |
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724 __ check_klass_subtype_slow_path(G3, G1, L0, L1, L2, L4, NULL, &miss); |
| 0 | 725 |
| 726 __ mov(1, G3); | |
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727 __ ret(); // Result in G5 is 'true' |
| 0 | 728 __ delayed()->restore(); // free copy or add can go here |
| 729 | |
| 730 __ bind(miss); | |
| 731 __ mov(0, G3); | |
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732 __ ret(); // Result in G5 is 'false' |
| 0 | 733 __ delayed()->restore(); // free copy or add can go here |
| 734 } | |
| 735 | |
| 736 case monitorenter_nofpu_id: | |
| 737 case monitorenter_id: | |
| 738 { // G4: object | |
| 739 // G5: lock address | |
| 740 __ set_info("monitorenter", dont_gc_arguments); | |
| 741 | |
| 742 int save_fpu_registers = (id == monitorenter_id); | |
| 743 // make a frame and preserve the caller's caller-save registers | |
| 744 OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); | |
| 745 | |
| 746 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), G4, G5); | |
| 747 | |
| 748 oop_maps = new OopMapSet(); | |
| 749 oop_maps->add_gc_map(call_offset, oop_map); | |
| 750 restore_live_registers(sasm, save_fpu_registers); | |
| 751 | |
| 752 __ ret(); | |
| 753 __ delayed()->restore(); | |
| 754 } | |
| 755 break; | |
| 756 | |
| 757 case monitorexit_nofpu_id: | |
| 758 case monitorexit_id: | |
| 759 { // G4: lock address | |
| 760 // note: really a leaf routine but must setup last java sp | |
| 761 // => use call_RT for now (speed can be improved by | |
| 762 // doing last java sp setup manually) | |
| 763 __ set_info("monitorexit", dont_gc_arguments); | |
| 764 | |
| 765 int save_fpu_registers = (id == monitorexit_id); | |
| 766 // make a frame and preserve the caller's caller-save registers | |
| 767 OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); | |
| 768 | |
| 769 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), G4); | |
| 770 | |
| 771 oop_maps = new OopMapSet(); | |
| 772 oop_maps->add_gc_map(call_offset, oop_map); | |
| 773 restore_live_registers(sasm, save_fpu_registers); | |
| 774 | |
| 775 __ ret(); | |
| 776 __ delayed()->restore(); | |
|
4048
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7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
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|
777 } |
|
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|
778 break; |
| 0 | 779 |
|
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7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
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|
780 case deoptimize_id: |
|
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|
781 { |
|
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|
782 __ set_info("deoptimize", dont_gc_arguments); |
|
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7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
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|
783 OopMap* oop_map = save_live_registers(sasm); |
|
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|
784 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize)); |
|
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785 oop_maps = new OopMapSet(); |
|
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|
786 oop_maps->add_gc_map(call_offset, oop_map); |
|
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787 restore_live_registers(sasm); |
|
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788 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
|
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|
789 assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
|
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|
790 AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
|
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791 __ jump_to(dest, O0); |
|
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|
792 __ delayed()->restore(); |
| 0 | 793 } |
| 794 break; | |
| 795 | |
| 796 case access_field_patching_id: | |
| 797 { __ set_info("access_field_patching", dont_gc_arguments); | |
| 798 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching)); | |
| 799 } | |
| 800 break; | |
| 801 | |
| 802 case load_klass_patching_id: | |
| 803 { __ set_info("load_klass_patching", dont_gc_arguments); | |
| 804 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching)); | |
| 805 } | |
| 806 break; | |
| 807 | |
|
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6964458: Reimplement class meta-data storage to use native memory
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|
808 case load_mirror_patching_id: |
|
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|
809 { __ set_info("load_mirror_patching", dont_gc_arguments); |
|
da91efe96a93
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810 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching)); |
|
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|
811 } |
|
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|
812 break; |
|
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diff
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|
813 |
|
12160
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7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
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parents:
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changeset
|
814 case load_appendix_patching_id: |
|
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7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
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diff
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|
815 { __ set_info("load_appendix_patching", dont_gc_arguments); |
|
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816 oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_appendix_patching)); |
|
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|
817 } |
|
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|
818 break; |
|
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|
819 |
| 0 | 820 case dtrace_object_alloc_id: |
| 821 { // O0: object | |
| 822 __ set_info("dtrace_object_alloc", dont_gc_arguments); | |
| 823 // we can't gc here so skip the oopmap but make sure that all | |
| 824 // the live registers get saved. | |
| 825 save_live_registers(sasm); | |
| 826 | |
| 827 __ save_thread(L7_thread_cache); | |
| 828 __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), | |
| 829 relocInfo::runtime_call_type); | |
| 830 __ delayed()->mov(I0, O0); | |
| 831 __ restore_thread(L7_thread_cache); | |
| 832 | |
| 833 restore_live_registers(sasm); | |
| 834 __ ret(); | |
| 835 __ delayed()->restore(); | |
| 836 } | |
| 837 break; | |
| 838 | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
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6725
diff
changeset
|
839 #if INCLUDE_ALL_GCS |
| 342 | 840 case g1_pre_barrier_slow_id: |
| 841 { // G4: previous value of memory | |
| 842 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 843 if (bs->kind() != BarrierSet::G1SATBCTLogging) { | |
| 844 __ save_frame(0); | |
| 845 __ set((int)id, O1); | |
| 846 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0); | |
| 847 __ should_not_reach_here(); | |
| 848 break; | |
| 849 } | |
| 850 | |
| 851 __ set_info("g1_pre_barrier_slow_id", dont_gc_arguments); | |
| 852 | |
| 853 Register pre_val = G4; | |
| 854 Register tmp = G1_scratch; | |
| 855 Register tmp2 = G3_scratch; | |
| 856 | |
| 857 Label refill, restart; | |
| 858 bool with_frame = false; // I don't know if we can do with-frame. | |
| 859 int satb_q_index_byte_offset = | |
| 860 in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 861 PtrQueue::byte_offset_of_index()); | |
| 862 int satb_q_buf_byte_offset = | |
| 863 in_bytes(JavaThread::satb_mark_queue_offset() + | |
| 864 PtrQueue::byte_offset_of_buf()); | |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
changeset
|
865 |
| 342 | 866 __ bind(restart); |
|
3888
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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3839
diff
changeset
|
867 // Load the index into the SATB buffer. PtrQueue::_index is a |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
changeset
|
868 // size_t so ld_ptr is appropriate |
| 342 | 869 __ ld_ptr(G2_thread, satb_q_index_byte_offset, tmp); |
| 870 | |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
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diff
changeset
|
871 // index == 0? |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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parents:
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diff
changeset
|
872 __ cmp_and_brx_short(tmp, G0, Assembler::equal, Assembler::pn, refill); |
| 342 | 873 |
|
3888
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johnc
parents:
3839
diff
changeset
|
874 __ ld_ptr(G2_thread, satb_q_buf_byte_offset, tmp2); |
| 342 | 875 __ sub(tmp, oopSize, tmp); |
| 876 | |
| 877 __ st_ptr(pre_val, tmp2, tmp); // [_buf + index] := <address_of_card> | |
| 878 // Use return-from-leaf | |
| 879 __ retl(); | |
| 880 __ delayed()->st_ptr(tmp, G2_thread, satb_q_index_byte_offset); | |
| 881 | |
| 882 __ bind(refill); | |
| 883 __ save_frame(0); | |
| 884 | |
| 885 __ mov(pre_val, L0); | |
| 886 __ mov(tmp, L1); | |
| 887 __ mov(tmp2, L2); | |
| 888 | |
| 889 __ call_VM_leaf(L7_thread_cache, | |
| 890 CAST_FROM_FN_PTR(address, | |
| 891 SATBMarkQueueSet::handle_zero_index_for_thread), | |
| 892 G2_thread); | |
| 893 | |
| 894 __ mov(L0, pre_val); | |
| 895 __ mov(L1, tmp); | |
| 896 __ mov(L2, tmp2); | |
| 897 | |
| 898 __ br(Assembler::always, /*annul*/false, Assembler::pt, restart); | |
| 899 __ delayed()->restore(); | |
| 900 } | |
| 901 break; | |
| 902 | |
| 903 case g1_post_barrier_slow_id: | |
| 904 { | |
| 905 BarrierSet* bs = Universe::heap()->barrier_set(); | |
| 906 if (bs->kind() != BarrierSet::G1SATBCTLogging) { | |
| 907 __ save_frame(0); | |
| 908 __ set((int)id, O1); | |
| 909 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), I0); | |
| 910 __ should_not_reach_here(); | |
| 911 break; | |
| 912 } | |
| 913 | |
| 914 __ set_info("g1_post_barrier_slow_id", dont_gc_arguments); | |
| 915 | |
| 916 Register addr = G4; | |
| 917 Register cardtable = G5; | |
| 918 Register tmp = G1_scratch; | |
| 919 Register tmp2 = G3_scratch; | |
| 920 jbyte* byte_map_base = ((CardTableModRefBS*)bs)->byte_map_base; | |
| 921 | |
|
12835
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
12160
diff
changeset
|
922 Label not_already_dirty, restart, refill, young_card; |
| 342 | 923 |
| 924 #ifdef _LP64 | |
| 925 __ srlx(addr, CardTableModRefBS::card_shift, addr); | |
| 926 #else | |
| 927 __ srl(addr, CardTableModRefBS::card_shift, addr); | |
| 928 #endif | |
| 929 | |
| 727 | 930 AddressLiteral rs(byte_map_base); |
| 931 __ set(rs, cardtable); // cardtable := <card table base> | |
| 342 | 932 __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable] |
| 933 | |
|
12835
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
12160
diff
changeset
|
934 __ cmp_and_br_short(tmp, G1SATBCardTableModRefBS::g1_young_card_val(), Assembler::equal, Assembler::pt, young_card); |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
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12160
diff
changeset
|
935 |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
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diff
changeset
|
936 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
12160
diff
changeset
|
937 __ ldub(addr, cardtable, tmp); // tmp := [addr + cardtable] |
|
69944b868a32
8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
parents:
12160
diff
changeset
|
938 |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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3839
diff
changeset
|
939 assert(CardTableModRefBS::dirty_card_val() == 0, "otherwise check this code"); |
|
4fe626cbf0bf
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johnc
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3839
diff
changeset
|
940 __ cmp_and_br_short(tmp, G0, Assembler::notEqual, Assembler::pt, not_already_dirty); |
| 342 | 941 |
|
12835
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8014555: G1: Memory ordering problem with Conc refinement and card marking
mgerdin
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diff
changeset
|
942 __ bind(young_card); |
| 342 | 943 // We didn't take the branch, so we're already dirty: return. |
| 944 // Use return-from-leaf | |
| 945 __ retl(); | |
| 946 __ delayed()->nop(); | |
| 947 | |
| 948 // Not dirty. | |
| 949 __ bind(not_already_dirty); | |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
950 |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
951 // Get cardtable + tmp into a reg by itself |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
952 __ add(addr, cardtable, tmp2); |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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parents:
3839
diff
changeset
|
953 |
| 342 | 954 // First, dirty it. |
| 955 __ stb(G0, tmp2, 0); // [cardPtr] := 0 (i.e., dirty). | |
| 956 | |
| 957 Register tmp3 = cardtable; | |
| 958 Register tmp4 = tmp; | |
| 959 | |
| 960 // these registers are now dead | |
| 961 addr = cardtable = tmp = noreg; | |
| 962 | |
| 963 int dirty_card_q_index_byte_offset = | |
| 964 in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 965 PtrQueue::byte_offset_of_index()); | |
| 966 int dirty_card_q_buf_byte_offset = | |
| 967 in_bytes(JavaThread::dirty_card_queue_offset() + | |
| 968 PtrQueue::byte_offset_of_buf()); | |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
969 |
| 342 | 970 __ bind(restart); |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
971 |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
972 // Get the index into the update buffer. PtrQueue::_index is |
|
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
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diff
changeset
|
973 // a size_t so ld_ptr is appropriate here. |
| 342 | 974 __ ld_ptr(G2_thread, dirty_card_q_index_byte_offset, tmp3); |
| 975 | |
|
3888
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7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
976 // index == 0? |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
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diff
changeset
|
977 __ cmp_and_brx_short(tmp3, G0, Assembler::equal, Assembler::pn, refill); |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
978 |
|
4fe626cbf0bf
7066841: remove MacroAssembler::br_on_reg_cond() on sparc
johnc
parents:
3839
diff
changeset
|
979 __ ld_ptr(G2_thread, dirty_card_q_buf_byte_offset, tmp4); |
| 342 | 980 __ sub(tmp3, oopSize, tmp3); |
| 981 | |
| 982 __ st_ptr(tmp2, tmp4, tmp3); // [_buf + index] := <address_of_card> | |
| 983 // Use return-from-leaf | |
| 984 __ retl(); | |
| 985 __ delayed()->st_ptr(tmp3, G2_thread, dirty_card_q_index_byte_offset); | |
| 986 | |
| 987 __ bind(refill); | |
| 988 __ save_frame(0); | |
| 989 | |
| 990 __ mov(tmp2, L0); | |
| 991 __ mov(tmp3, L1); | |
| 992 __ mov(tmp4, L2); | |
| 993 | |
| 994 __ call_VM_leaf(L7_thread_cache, | |
| 995 CAST_FROM_FN_PTR(address, | |
| 996 DirtyCardQueueSet::handle_zero_index_for_thread), | |
| 997 G2_thread); | |
| 998 | |
| 999 __ mov(L0, tmp2); | |
| 1000 __ mov(L1, tmp3); | |
| 1001 __ mov(L2, tmp4); | |
| 1002 | |
| 1003 __ br(Assembler::always, /*annul*/false, Assembler::pt, restart); | |
| 1004 __ delayed()->restore(); | |
| 1005 } | |
| 1006 break; | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
1007 #endif // INCLUDE_ALL_GCS |
| 342 | 1008 |
| 8860 | 1009 case predicate_failed_trap_id: |
| 1010 { | |
| 1011 __ set_info("predicate_failed_trap", dont_gc_arguments); | |
| 1012 OopMap* oop_map = save_live_registers(sasm); | |
| 1013 | |
| 1014 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap)); | |
| 1015 | |
| 1016 oop_maps = new OopMapSet(); | |
| 1017 oop_maps->add_gc_map(call_offset, oop_map); | |
| 1018 | |
| 1019 DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); | |
| 1020 assert(deopt_blob != NULL, "deoptimization blob must have been created"); | |
| 1021 restore_live_registers(sasm); | |
|
9155
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8011582: assert(nbits == 32 || (-(1 << nbits-1) <= x && x < ( 1 << nbits-1))) failed: value out of range
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8860
diff
changeset
|
1022 |
|
bb4a966cc68f
8011582: assert(nbits == 32 || (-(1 << nbits-1) <= x && x < ( 1 << nbits-1))) failed: value out of range
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diff
changeset
|
1023 AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
|
bb4a966cc68f
8011582: assert(nbits == 32 || (-(1 << nbits-1) <= x && x < ( 1 << nbits-1))) failed: value out of range
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diff
changeset
|
1024 __ jump_to(dest, O0); |
|
bb4a966cc68f
8011582: assert(nbits == 32 || (-(1 << nbits-1) <= x && x < ( 1 << nbits-1))) failed: value out of range
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diff
changeset
|
1025 __ delayed()->restore(); |
| 8860 | 1026 } |
| 1027 break; | |
| 1028 | |
| 0 | 1029 default: |
| 1030 { __ set_info("unimplemented entry", dont_gc_arguments); | |
| 1031 __ save_frame(0); | |
| 1032 __ set((int)id, O1); | |
| 1033 __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, unimplemented_entry), O1); | |
| 1034 __ should_not_reach_here(); | |
| 1035 } | |
| 1036 break; | |
| 1037 } | |
| 1038 return oop_maps; | |
| 1039 } | |
| 1040 | |
| 1041 | |
|
2321
1b4e6a5d98e0
7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
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|
1042 OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler* sasm) { |
|
1b4e6a5d98e0
7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
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|
1043 __ block_comment("generate_handle_exception"); |
|
1b4e6a5d98e0
7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
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1044 |
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1045 // Save registers, if required. |
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1046 OopMapSet* oop_maps = new OopMapSet(); |
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1047 OopMap* oop_map = NULL; |
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1048 switch (id) { |
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1049 case forward_exception_id: |
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1050 // We're handling an exception in the context of a compiled frame. |
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1051 // The registers have been saved in the standard places. Perform |
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1052 // an exception lookup in the caller and dispatch to the handler |
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1053 // if found. Otherwise unwind and dispatch to the callers |
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1054 // exception handler. |
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1055 oop_map = generate_oop_map(sasm, true); |
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1056 |
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1057 // transfer the pending exception to the exception_oop |
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1058 __ ld_ptr(G2_thread, in_bytes(JavaThread::pending_exception_offset()), Oexception); |
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1059 __ ld_ptr(Oexception, 0, G0); |
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1060 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::pending_exception_offset())); |
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1061 __ add(I7, frame::pc_return_offset, Oissuing_pc); |
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1062 break; |
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1063 case handle_exception_id: |
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1064 // At this point all registers MAY be live. |
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1065 oop_map = save_live_registers(sasm); |
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1066 __ mov(Oexception->after_save(), Oexception); |
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1067 __ mov(Oissuing_pc->after_save(), Oissuing_pc); |
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1068 break; |
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1069 case handle_exception_from_callee_id: |
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1070 // At this point all registers except exception oop (Oexception) |
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1071 // and exception pc (Oissuing_pc) are dead. |
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1072 oop_map = new OopMap(frame_size_in_bytes / sizeof(jint), 0); |
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1073 sasm->set_frame_size(frame_size_in_bytes / BytesPerWord); |
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1074 __ save_frame_c1(frame_size_in_bytes); |
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1075 __ mov(Oexception->after_save(), Oexception); |
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1076 __ mov(Oissuing_pc->after_save(), Oissuing_pc); |
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1077 break; |
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1078 default: ShouldNotReachHere(); |
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1079 } |
| 0 | 1080 |
| 1081 __ verify_not_null_oop(Oexception); | |
| 1082 | |
|
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1083 #ifdef ASSERT |
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1084 // check that fields in JavaThread for exception oop and issuing pc are |
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1085 // empty before writing to them |
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1086 Label oop_empty; |
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1087 Register scratch = I7; // We can use I7 here because it's overwritten later anyway. |
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1088 __ ld_ptr(Address(G2_thread, JavaThread::exception_oop_offset()), scratch); |
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1089 __ br_null(scratch, false, Assembler::pt, oop_empty); |
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1090 __ delayed()->nop(); |
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1091 __ stop("exception oop already set"); |
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1092 __ bind(oop_empty); |
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1093 |
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1094 Label pc_empty; |
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1095 __ ld_ptr(Address(G2_thread, JavaThread::exception_pc_offset()), scratch); |
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1096 __ br_null(scratch, false, Assembler::pt, pc_empty); |
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1097 __ delayed()->nop(); |
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1098 __ stop("exception pc already set"); |
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1099 __ bind(pc_empty); |
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1100 #endif |
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1101 |
| 0 | 1102 // save the exception and issuing pc in the thread |
|
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1103 __ st_ptr(Oexception, G2_thread, in_bytes(JavaThread::exception_oop_offset())); |
| 0 | 1104 __ st_ptr(Oissuing_pc, G2_thread, in_bytes(JavaThread::exception_pc_offset())); |
| 1105 | |
|
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1106 // use the throwing pc as the return address to lookup (has bci & oop map) |
| 0 | 1107 __ mov(Oissuing_pc, I7); |
| 1108 __ sub(I7, frame::pc_return_offset, I7); | |
| 1109 int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc)); | |
|
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1110 oop_maps->add_gc_map(call_offset, oop_map); |
| 0 | 1111 |
| 1112 // Note: if nmethod has been deoptimized then regardless of | |
| 1113 // whether it had a handler or not we will deoptimize | |
| 1114 // by entering the deopt blob with a pending exception. | |
| 1115 | |
|
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1116 // Restore the registers that were saved at the beginning, remove |
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1117 // the frame and jump to the exception handler. |
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1118 switch (id) { |
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1119 case forward_exception_id: |
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1120 case handle_exception_id: |
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1121 restore_live_registers(sasm); |
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1122 __ jmp(O0, 0); |
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1123 __ delayed()->restore(); |
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1124 break; |
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1125 case handle_exception_from_callee_id: |
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1126 // Restore SP from L7 if the exception PC is a method handle call site. |
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1127 __ mov(O0, G5); // Save the target address. |
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1128 __ lduw(Address(G2_thread, JavaThread::is_method_handle_return_offset()), L0); |
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1129 __ tst(L0); // Condition codes are preserved over the restore. |
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1130 __ restore(); |
| 0 | 1131 |
|
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1132 __ jmp(G5, 0); // jump to the exception handler |
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1133 __ delayed()->movcc(Assembler::notZero, false, Assembler::icc, L7_mh_SP_save, SP); // Restore SP if required. |
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1134 break; |
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1135 default: ShouldNotReachHere(); |
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1136 } |
| 0 | 1137 |
|
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1138 return oop_maps; |
| 0 | 1139 } |
| 1140 | |
| 1141 | |
| 1142 #undef __ | |
| 1143 | |
|
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1144 const char *Runtime1::pd_name_for_address(address entry) { |
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1145 return "<unknown function>"; |
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1146 } |