Mercurial > hg > truffle
annotate src/cpu/x86/vm/interp_masm_x86_32.cpp @ 1251:576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
Summary: Clear the total count when a receiver information is cleared.
Reviewed-by: never, jrose
| author | kvn |
|---|---|
| date | Sun, 07 Feb 2010 12:15:06 -0800 |
| parents | 87684f1a88b5 |
| children | 2338d41fbd81 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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6923002: assert(false,"this call site should not be polymorphic")
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2 * Copyright 1997-2010 Sun Microsystems, Inc. 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_interp_masm_x86_32.cpp.incl" | |
| 27 | |
| 28 | |
| 29 // Implementation of InterpreterMacroAssembler | |
| 30 #ifdef CC_INTERP | |
| 31 void InterpreterMacroAssembler::get_method(Register reg) { | |
| 304 | 32 movptr(reg, Address(rbp, -(sizeof(BytecodeInterpreter) + 2 * wordSize))); |
| 33 movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method))); | |
| 0 | 34 } |
| 35 #endif // CC_INTERP | |
| 36 | |
| 37 | |
| 38 #ifndef CC_INTERP | |
| 39 void InterpreterMacroAssembler::call_VM_leaf_base( | |
| 40 address entry_point, | |
| 41 int number_of_arguments | |
| 42 ) { | |
| 43 // interpreter specific | |
| 44 // | |
| 45 // Note: No need to save/restore bcp & locals (rsi & rdi) pointer | |
| 46 // since these are callee saved registers and no blocking/ | |
| 47 // GC can happen in leaf calls. | |
| 48 // Further Note: DO NOT save/restore bcp/locals. If a caller has | |
| 49 // already saved them so that it can use rsi/rdi as temporaries | |
| 50 // then a save/restore here will DESTROY the copy the caller | |
| 51 // saved! There used to be a save_bcp() that only happened in | |
| 52 // the ASSERT path (no restore_bcp). Which caused bizarre failures | |
| 53 // when jvm built with ASSERTs. | |
| 54 #ifdef ASSERT | |
| 55 { Label L; | |
| 304 | 56 cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 57 jcc(Assembler::equal, L); |
| 58 stop("InterpreterMacroAssembler::call_VM_leaf_base: last_sp != NULL"); | |
| 59 bind(L); | |
| 60 } | |
| 61 #endif | |
| 62 // super call | |
| 63 MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments); | |
| 64 // interpreter specific | |
| 65 | |
| 66 // Used to ASSERT that rsi/rdi were equal to frame's bcp/locals | |
| 67 // but since they may not have been saved (and we don't want to | |
| 68 // save them here (see note above) the assert is invalid. | |
| 69 } | |
| 70 | |
| 71 | |
| 72 void InterpreterMacroAssembler::call_VM_base( | |
| 73 Register oop_result, | |
| 74 Register java_thread, | |
| 75 Register last_java_sp, | |
| 76 address entry_point, | |
| 77 int number_of_arguments, | |
| 78 bool check_exceptions | |
| 79 ) { | |
| 80 #ifdef ASSERT | |
| 81 { Label L; | |
| 304 | 82 cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 83 jcc(Assembler::equal, L); |
| 84 stop("InterpreterMacroAssembler::call_VM_base: last_sp != NULL"); | |
| 85 bind(L); | |
| 86 } | |
| 87 #endif /* ASSERT */ | |
| 88 // interpreter specific | |
| 89 // | |
| 90 // Note: Could avoid restoring locals ptr (callee saved) - however doesn't | |
| 91 // really make a difference for these runtime calls, since they are | |
| 92 // slow anyway. Btw., bcp must be saved/restored since it may change | |
| 93 // due to GC. | |
| 94 assert(java_thread == noreg , "not expecting a precomputed java thread"); | |
| 95 save_bcp(); | |
| 96 // super call | |
| 97 MacroAssembler::call_VM_base(oop_result, java_thread, last_java_sp, entry_point, number_of_arguments, check_exceptions); | |
| 98 // interpreter specific | |
| 99 restore_bcp(); | |
| 100 restore_locals(); | |
| 101 } | |
| 102 | |
| 103 | |
| 104 void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) { | |
| 105 if (JvmtiExport::can_pop_frame()) { | |
| 106 Label L; | |
| 107 // Initiate popframe handling only if it is not already being processed. If the flag | |
| 108 // has the popframe_processing bit set, it means that this code is called *during* popframe | |
| 109 // handling - we don't want to reenter. | |
| 110 Register pop_cond = java_thread; // Not clear if any other register is available... | |
| 111 movl(pop_cond, Address(java_thread, JavaThread::popframe_condition_offset())); | |
| 112 testl(pop_cond, JavaThread::popframe_pending_bit); | |
| 113 jcc(Assembler::zero, L); | |
| 114 testl(pop_cond, JavaThread::popframe_processing_bit); | |
| 115 jcc(Assembler::notZero, L); | |
| 116 // Call Interpreter::remove_activation_preserving_args_entry() to get the | |
| 117 // address of the same-named entrypoint in the generated interpreter code. | |
| 118 call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry)); | |
| 119 jmp(rax); | |
| 120 bind(L); | |
| 121 get_thread(java_thread); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 | |
| 126 void InterpreterMacroAssembler::load_earlyret_value(TosState state) { | |
| 127 get_thread(rcx); | |
| 128 movl(rcx, Address(rcx, JavaThread::jvmti_thread_state_offset())); | |
| 129 const Address tos_addr (rcx, JvmtiThreadState::earlyret_tos_offset()); | |
| 130 const Address oop_addr (rcx, JvmtiThreadState::earlyret_oop_offset()); | |
| 131 const Address val_addr (rcx, JvmtiThreadState::earlyret_value_offset()); | |
| 132 const Address val_addr1(rcx, JvmtiThreadState::earlyret_value_offset() | |
| 133 + in_ByteSize(wordSize)); | |
| 134 switch (state) { | |
| 304 | 135 case atos: movptr(rax, oop_addr); |
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136 movptr(oop_addr, NULL_WORD); |
| 0 | 137 verify_oop(rax, state); break; |
| 304 | 138 case ltos: |
| 139 movl(rdx, val_addr1); // fall through | |
| 0 | 140 case btos: // fall through |
| 141 case ctos: // fall through | |
| 142 case stos: // fall through | |
| 143 case itos: movl(rax, val_addr); break; | |
| 144 case ftos: fld_s(val_addr); break; | |
| 145 case dtos: fld_d(val_addr); break; | |
| 146 case vtos: /* nothing to do */ break; | |
| 147 default : ShouldNotReachHere(); | |
| 148 } | |
| 149 // Clean up tos value in the thread object | |
| 304 | 150 movl(tos_addr, (int32_t) ilgl); |
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151 movptr(val_addr, NULL_WORD); |
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152 NOT_LP64(movptr(val_addr1, NULL_WORD)); |
| 0 | 153 } |
| 154 | |
| 155 | |
| 156 void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) { | |
| 157 if (JvmtiExport::can_force_early_return()) { | |
| 158 Label L; | |
| 159 Register tmp = java_thread; | |
| 304 | 160 movptr(tmp, Address(tmp, JavaThread::jvmti_thread_state_offset())); |
| 161 testptr(tmp, tmp); | |
| 0 | 162 jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit; |
| 163 | |
| 164 // Initiate earlyret handling only if it is not already being processed. | |
| 165 // If the flag has the earlyret_processing bit set, it means that this code | |
| 166 // is called *during* earlyret handling - we don't want to reenter. | |
| 167 movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset())); | |
| 168 cmpl(tmp, JvmtiThreadState::earlyret_pending); | |
| 169 jcc(Assembler::notEqual, L); | |
| 170 | |
| 171 // Call Interpreter::remove_activation_early_entry() to get the address of the | |
| 172 // same-named entrypoint in the generated interpreter code. | |
| 173 get_thread(java_thread); | |
| 304 | 174 movptr(tmp, Address(java_thread, JavaThread::jvmti_thread_state_offset())); |
| 0 | 175 pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset())); |
| 176 call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1); | |
| 177 jmp(rax); | |
| 178 bind(L); | |
| 179 get_thread(java_thread); | |
| 180 } | |
| 181 } | |
| 182 | |
| 183 | |
| 184 void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) { | |
| 185 assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode"); | |
| 186 movl(reg, Address(rsi, bcp_offset)); | |
| 304 | 187 bswapl(reg); |
| 0 | 188 shrl(reg, 16); |
| 189 } | |
| 190 | |
| 191 | |
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192 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register reg, int bcp_offset, bool giant_index) { |
| 0 | 193 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
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194 if (!giant_index) { |
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195 load_unsigned_short(reg, Address(rsi, bcp_offset)); |
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196 } else { |
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197 assert(EnableInvokeDynamic, "giant index used only for EnableInvokeDynamic"); |
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198 movl(reg, Address(rsi, bcp_offset)); |
| 1108 | 199 // Check if the secondary index definition is still ~x, otherwise |
| 200 // we have to change the following assembler code to calculate the | |
| 201 // plain index. | |
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202 assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line"); |
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203 notl(reg); // convert to plain index |
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204 } |
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205 } |
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206 |
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207 |
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208 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, |
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209 int bcp_offset, bool giant_index) { |
| 0 | 210 assert(cache != index, "must use different registers"); |
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211 get_cache_index_at_bcp(index, bcp_offset, giant_index); |
| 304 | 212 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
| 0 | 213 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
| 304 | 214 shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index |
| 0 | 215 } |
| 216 | |
| 217 | |
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218 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, |
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219 int bcp_offset, bool giant_index) { |
| 0 | 220 assert(cache != tmp, "must use different register"); |
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221 get_cache_index_at_bcp(tmp, bcp_offset, giant_index); |
| 0 | 222 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
| 223 // convert from field index to ConstantPoolCacheEntry index | |
| 224 // and from word offset to byte offset | |
| 225 shll(tmp, 2 + LogBytesPerWord); | |
| 304 | 226 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
| 0 | 227 // skip past the header |
| 304 | 228 addptr(cache, in_bytes(constantPoolCacheOopDesc::base_offset())); |
| 229 addptr(cache, tmp); // construct pointer to cache entry | |
| 0 | 230 } |
| 231 | |
| 232 | |
| 233 // Generate a subtype check: branch to ok_is_subtype if sub_klass is | |
| 234 // a subtype of super_klass. EAX holds the super_klass. Blows ECX. | |
| 235 // Resets EDI to locals. Register sub_klass cannot be any of the above. | |
| 236 void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) { | |
| 237 assert( Rsub_klass != rax, "rax, holds superklass" ); | |
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238 assert( Rsub_klass != rcx, "used as a temp" ); |
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239 assert( Rsub_klass != rdi, "used as a temp, restored from locals" ); |
| 0 | 240 |
| 241 // Profile the not-null value's klass. | |
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242 profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi |
| 0 | 243 |
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244 // Do the check. |
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245 check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx |
| 0 | 246 |
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247 // Profile the failure of the check. |
| 0 | 248 profile_typecheck_failed(rcx); // blows rcx |
| 249 } | |
| 250 | |
| 251 void InterpreterMacroAssembler::f2ieee() { | |
| 252 if (IEEEPrecision) { | |
| 253 fstp_s(Address(rsp, 0)); | |
| 254 fld_s(Address(rsp, 0)); | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 | |
| 259 void InterpreterMacroAssembler::d2ieee() { | |
| 260 if (IEEEPrecision) { | |
| 261 fstp_d(Address(rsp, 0)); | |
| 262 fld_d(Address(rsp, 0)); | |
| 263 } | |
| 264 } | |
| 265 | |
| 266 // Java Expression Stack | |
| 267 | |
| 268 #ifdef ASSERT | |
| 269 void InterpreterMacroAssembler::verify_stack_tag(frame::Tag t) { | |
| 270 if (TaggedStackInterpreter) { | |
| 271 Label okay; | |
| 304 | 272 cmpptr(Address(rsp, wordSize), (int32_t)t); |
| 0 | 273 jcc(Assembler::equal, okay); |
| 274 // Also compare if the stack value is zero, then the tag might | |
| 275 // not have been set coming from deopt. | |
| 304 | 276 cmpptr(Address(rsp, 0), 0); |
| 0 | 277 jcc(Assembler::equal, okay); |
| 278 stop("Java Expression stack tag value is bad"); | |
| 279 bind(okay); | |
| 280 } | |
| 281 } | |
| 282 #endif // ASSERT | |
| 283 | |
| 284 void InterpreterMacroAssembler::pop_ptr(Register r) { | |
| 285 debug_only(verify_stack_tag(frame::TagReference)); | |
| 304 | 286 pop(r); |
| 287 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
| 0 | 288 } |
| 289 | |
| 290 void InterpreterMacroAssembler::pop_ptr(Register r, Register tag) { | |
| 304 | 291 pop(r); |
| 0 | 292 // Tag may not be reference for jsr, can be returnAddress |
| 304 | 293 if (TaggedStackInterpreter) pop(tag); |
| 0 | 294 } |
| 295 | |
| 296 void InterpreterMacroAssembler::pop_i(Register r) { | |
| 297 debug_only(verify_stack_tag(frame::TagValue)); | |
| 304 | 298 pop(r); |
| 299 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
| 0 | 300 } |
| 301 | |
| 302 void InterpreterMacroAssembler::pop_l(Register lo, Register hi) { | |
| 303 debug_only(verify_stack_tag(frame::TagValue)); | |
| 304 | 304 pop(lo); |
| 305 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
| 0 | 306 debug_only(verify_stack_tag(frame::TagValue)); |
| 304 | 307 pop(hi); |
| 308 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
| 0 | 309 } |
| 310 | |
| 311 void InterpreterMacroAssembler::pop_f() { | |
| 312 debug_only(verify_stack_tag(frame::TagValue)); | |
| 313 fld_s(Address(rsp, 0)); | |
| 304 | 314 addptr(rsp, 1 * wordSize); |
| 315 if (TaggedStackInterpreter) addptr(rsp, 1 * wordSize); | |
| 0 | 316 } |
| 317 | |
| 318 void InterpreterMacroAssembler::pop_d() { | |
| 319 // Write double to stack contiguously and load into ST0 | |
| 320 pop_dtos_to_rsp(); | |
| 321 fld_d(Address(rsp, 0)); | |
| 304 | 322 addptr(rsp, 2 * wordSize); |
| 0 | 323 } |
| 324 | |
| 325 | |
| 326 // Pop the top of the java expression stack to execution stack (which | |
| 327 // happens to be the same place). | |
| 328 void InterpreterMacroAssembler::pop_dtos_to_rsp() { | |
| 329 if (TaggedStackInterpreter) { | |
| 330 // Pop double value into scratch registers | |
| 331 debug_only(verify_stack_tag(frame::TagValue)); | |
| 304 | 332 pop(rax); |
| 333 addptr(rsp, 1* wordSize); | |
| 0 | 334 debug_only(verify_stack_tag(frame::TagValue)); |
| 304 | 335 pop(rdx); |
| 336 addptr(rsp, 1* wordSize); | |
| 337 push(rdx); | |
| 338 push(rax); | |
| 0 | 339 } |
| 340 } | |
| 341 | |
| 342 void InterpreterMacroAssembler::pop_ftos_to_rsp() { | |
| 343 if (TaggedStackInterpreter) { | |
| 344 debug_only(verify_stack_tag(frame::TagValue)); | |
| 304 | 345 pop(rax); |
| 346 addptr(rsp, 1 * wordSize); | |
| 347 push(rax); // ftos is at rsp | |
| 0 | 348 } |
| 349 } | |
| 350 | |
| 351 void InterpreterMacroAssembler::pop(TosState state) { | |
| 352 switch (state) { | |
| 353 case atos: pop_ptr(rax); break; | |
| 354 case btos: // fall through | |
| 355 case ctos: // fall through | |
| 356 case stos: // fall through | |
| 357 case itos: pop_i(rax); break; | |
| 358 case ltos: pop_l(rax, rdx); break; | |
| 359 case ftos: pop_f(); break; | |
| 360 case dtos: pop_d(); break; | |
| 361 case vtos: /* nothing to do */ break; | |
| 362 default : ShouldNotReachHere(); | |
| 363 } | |
| 364 verify_oop(rax, state); | |
| 365 } | |
| 366 | |
| 367 void InterpreterMacroAssembler::push_ptr(Register r) { | |
| 304 | 368 if (TaggedStackInterpreter) push(frame::TagReference); |
| 369 push(r); | |
| 0 | 370 } |
| 371 | |
| 372 void InterpreterMacroAssembler::push_ptr(Register r, Register tag) { | |
| 304 | 373 if (TaggedStackInterpreter) push(tag); // tag first |
| 374 push(r); | |
| 0 | 375 } |
| 376 | |
| 377 void InterpreterMacroAssembler::push_i(Register r) { | |
| 304 | 378 if (TaggedStackInterpreter) push(frame::TagValue); |
| 379 push(r); | |
| 0 | 380 } |
| 381 | |
| 382 void InterpreterMacroAssembler::push_l(Register lo, Register hi) { | |
| 304 | 383 if (TaggedStackInterpreter) push(frame::TagValue); |
| 384 push(hi); | |
| 385 if (TaggedStackInterpreter) push(frame::TagValue); | |
| 386 push(lo); | |
| 0 | 387 } |
| 388 | |
| 389 void InterpreterMacroAssembler::push_f() { | |
| 304 | 390 if (TaggedStackInterpreter) push(frame::TagValue); |
| 0 | 391 // Do not schedule for no AGI! Never write beyond rsp! |
| 304 | 392 subptr(rsp, 1 * wordSize); |
| 0 | 393 fstp_s(Address(rsp, 0)); |
| 394 } | |
| 395 | |
| 396 void InterpreterMacroAssembler::push_d(Register r) { | |
| 397 if (TaggedStackInterpreter) { | |
| 398 // Double values are stored as: | |
| 399 // tag | |
| 400 // high | |
| 401 // tag | |
| 402 // low | |
| 304 | 403 push(frame::TagValue); |
| 404 subptr(rsp, 3 * wordSize); | |
| 0 | 405 fstp_d(Address(rsp, 0)); |
| 406 // move high word up to slot n-1 | |
| 407 movl(r, Address(rsp, 1*wordSize)); | |
| 408 movl(Address(rsp, 2*wordSize), r); | |
| 409 // move tag | |
| 410 movl(Address(rsp, 1*wordSize), frame::TagValue); | |
| 411 } else { | |
| 412 // Do not schedule for no AGI! Never write beyond rsp! | |
| 304 | 413 subptr(rsp, 2 * wordSize); |
| 0 | 414 fstp_d(Address(rsp, 0)); |
| 415 } | |
| 416 } | |
| 417 | |
| 418 | |
| 419 void InterpreterMacroAssembler::push(TosState state) { | |
| 420 verify_oop(rax, state); | |
| 421 switch (state) { | |
| 422 case atos: push_ptr(rax); break; | |
| 423 case btos: // fall through | |
| 424 case ctos: // fall through | |
| 425 case stos: // fall through | |
| 426 case itos: push_i(rax); break; | |
| 427 case ltos: push_l(rax, rdx); break; | |
| 428 case ftos: push_f(); break; | |
| 429 case dtos: push_d(rax); break; | |
| 430 case vtos: /* nothing to do */ break; | |
| 431 default : ShouldNotReachHere(); | |
| 432 } | |
| 433 } | |
| 434 | |
| 435 | |
| 436 // Tagged stack helpers for swap and dup | |
| 437 void InterpreterMacroAssembler::load_ptr_and_tag(int n, Register val, | |
| 438 Register tag) { | |
| 304 | 439 movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n))); |
| 0 | 440 if (TaggedStackInterpreter) { |
| 304 | 441 movptr(tag, Address(rsp, Interpreter::expr_tag_offset_in_bytes(n))); |
| 0 | 442 } |
| 443 } | |
| 444 | |
| 445 void InterpreterMacroAssembler::store_ptr_and_tag(int n, Register val, | |
| 446 Register tag) { | |
| 304 | 447 movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val); |
| 0 | 448 if (TaggedStackInterpreter) { |
| 304 | 449 movptr(Address(rsp, Interpreter::expr_tag_offset_in_bytes(n)), tag); |
| 0 | 450 } |
| 451 } | |
| 452 | |
| 453 | |
| 454 // Tagged local support | |
| 455 void InterpreterMacroAssembler::tag_local(frame::Tag tag, int n) { | |
| 456 if (TaggedStackInterpreter) { | |
| 457 if (tag == frame::TagCategory2) { | |
| 304 | 458 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n+1)), (int32_t)frame::TagValue); |
| 459 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)frame::TagValue); | |
| 0 | 460 } else { |
| 304 | 461 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)tag); |
| 0 | 462 } |
| 463 } | |
| 464 } | |
| 465 | |
| 466 void InterpreterMacroAssembler::tag_local(frame::Tag tag, Register idx) { | |
| 467 if (TaggedStackInterpreter) { | |
| 468 if (tag == frame::TagCategory2) { | |
| 304 | 469 movptr(Address(rdi, idx, Interpreter::stackElementScale(), |
| 470 Interpreter::local_tag_offset_in_bytes(1)), (int32_t)frame::TagValue); | |
| 471 movptr(Address(rdi, idx, Interpreter::stackElementScale(), | |
| 472 Interpreter::local_tag_offset_in_bytes(0)), (int32_t)frame::TagValue); | |
| 0 | 473 } else { |
| 304 | 474 movptr(Address(rdi, idx, Interpreter::stackElementScale(), |
| 475 Interpreter::local_tag_offset_in_bytes(0)), (int32_t)tag); | |
| 0 | 476 } |
| 477 } | |
| 478 } | |
| 479 | |
| 480 void InterpreterMacroAssembler::tag_local(Register tag, Register idx) { | |
| 481 if (TaggedStackInterpreter) { | |
| 482 // can only be TagValue or TagReference | |
| 304 | 483 movptr(Address(rdi, idx, Interpreter::stackElementScale(), |
| 0 | 484 Interpreter::local_tag_offset_in_bytes(0)), tag); |
| 485 } | |
| 486 } | |
| 487 | |
| 488 | |
| 489 void InterpreterMacroAssembler::tag_local(Register tag, int n) { | |
| 490 if (TaggedStackInterpreter) { | |
| 491 // can only be TagValue or TagReference | |
| 304 | 492 movptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), tag); |
| 0 | 493 } |
| 494 } | |
| 495 | |
| 496 #ifdef ASSERT | |
| 497 void InterpreterMacroAssembler::verify_local_tag(frame::Tag tag, int n) { | |
| 498 if (TaggedStackInterpreter) { | |
| 499 frame::Tag t = tag; | |
| 500 if (tag == frame::TagCategory2) { | |
| 501 Label nbl; | |
| 502 t = frame::TagValue; // change to what is stored in locals | |
| 304 | 503 cmpptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n+1)), (int32_t)t); |
| 0 | 504 jcc(Assembler::equal, nbl); |
| 505 stop("Local tag is bad for long/double"); | |
| 506 bind(nbl); | |
| 507 } | |
| 508 Label notBad; | |
| 304 | 509 cmpptr(Address(rdi, Interpreter::local_tag_offset_in_bytes(n)), (int32_t)t); |
| 0 | 510 jcc(Assembler::equal, notBad); |
| 511 // Also compare if the local value is zero, then the tag might | |
| 512 // not have been set coming from deopt. | |
| 304 | 513 cmpptr(Address(rdi, Interpreter::local_offset_in_bytes(n)), 0); |
| 0 | 514 jcc(Assembler::equal, notBad); |
| 515 stop("Local tag is bad"); | |
| 516 bind(notBad); | |
| 517 } | |
| 518 } | |
| 519 | |
| 520 void InterpreterMacroAssembler::verify_local_tag(frame::Tag tag, Register idx) { | |
| 521 if (TaggedStackInterpreter) { | |
| 522 frame::Tag t = tag; | |
| 523 if (tag == frame::TagCategory2) { | |
| 524 Label nbl; | |
| 525 t = frame::TagValue; // change to what is stored in locals | |
| 304 | 526 cmpptr(Address(rdi, idx, Interpreter::stackElementScale(), |
| 527 Interpreter::local_tag_offset_in_bytes(1)), (int32_t)t); | |
| 0 | 528 jcc(Assembler::equal, nbl); |
| 529 stop("Local tag is bad for long/double"); | |
| 530 bind(nbl); | |
| 531 } | |
| 532 Label notBad; | |
| 533 cmpl(Address(rdi, idx, Interpreter::stackElementScale(), | |
| 304 | 534 Interpreter::local_tag_offset_in_bytes(0)), (int32_t)t); |
| 0 | 535 jcc(Assembler::equal, notBad); |
| 536 // Also compare if the local value is zero, then the tag might | |
| 537 // not have been set coming from deopt. | |
| 304 | 538 cmpptr(Address(rdi, idx, Interpreter::stackElementScale(), |
| 0 | 539 Interpreter::local_offset_in_bytes(0)), 0); |
| 540 jcc(Assembler::equal, notBad); | |
| 541 stop("Local tag is bad"); | |
| 542 bind(notBad); | |
| 543 | |
| 544 } | |
| 545 } | |
| 546 #endif // ASSERT | |
| 547 | |
| 548 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point) { | |
| 549 MacroAssembler::call_VM_leaf_base(entry_point, 0); | |
| 550 } | |
| 551 | |
| 552 | |
| 553 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1) { | |
| 304 | 554 push(arg_1); |
| 0 | 555 MacroAssembler::call_VM_leaf_base(entry_point, 1); |
| 556 } | |
| 557 | |
| 558 | |
| 559 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2) { | |
| 304 | 560 push(arg_2); |
| 561 push(arg_1); | |
| 0 | 562 MacroAssembler::call_VM_leaf_base(entry_point, 2); |
| 563 } | |
| 564 | |
| 565 | |
| 566 void InterpreterMacroAssembler::super_call_VM_leaf(address entry_point, Register arg_1, Register arg_2, Register arg_3) { | |
| 304 | 567 push(arg_3); |
| 568 push(arg_2); | |
| 569 push(arg_1); | |
| 0 | 570 MacroAssembler::call_VM_leaf_base(entry_point, 3); |
| 571 } | |
| 572 | |
| 573 | |
| 710 | 574 void InterpreterMacroAssembler::prepare_to_jump_from_interpreted() { |
| 0 | 575 // set sender sp |
| 304 | 576 lea(rsi, Address(rsp, wordSize)); |
| 0 | 577 // record last_sp |
| 304 | 578 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), rsi); |
| 710 | 579 } |
| 580 | |
| 581 | |
| 582 // Jump to from_interpreted entry of a call unless single stepping is possible | |
| 583 // in this thread in which case we must call the i2i entry | |
| 584 void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) { | |
| 585 prepare_to_jump_from_interpreted(); | |
| 0 | 586 |
| 587 if (JvmtiExport::can_post_interpreter_events()) { | |
| 588 Label run_compiled_code; | |
| 589 // JVMTI events, such as single-stepping, are implemented partly by avoiding running | |
| 590 // compiled code in threads for which the event is enabled. Check here for | |
| 591 // interp_only_mode if these events CAN be enabled. | |
| 592 get_thread(temp); | |
| 593 // interp_only is an int, on little endian it is sufficient to test the byte only | |
| 594 // Is a cmpl faster (ce | |
| 595 cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0); | |
| 596 jcc(Assembler::zero, run_compiled_code); | |
| 597 jmp(Address(method, methodOopDesc::interpreter_entry_offset())); | |
| 598 bind(run_compiled_code); | |
| 599 } | |
| 600 | |
| 601 jmp(Address(method, methodOopDesc::from_interpreted_offset())); | |
| 602 | |
| 603 } | |
| 604 | |
| 605 | |
| 606 // The following two routines provide a hook so that an implementation | |
| 607 // can schedule the dispatch in two parts. Intel does not do this. | |
| 608 void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) { | |
| 609 // Nothing Intel-specific to be done here. | |
| 610 } | |
| 611 | |
| 612 void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) { | |
| 613 dispatch_next(state, step); | |
| 614 } | |
| 615 | |
| 616 void InterpreterMacroAssembler::dispatch_base(TosState state, address* table, | |
| 617 bool verifyoop) { | |
| 618 verify_FPU(1, state); | |
| 619 if (VerifyActivationFrameSize) { | |
| 620 Label L; | |
| 304 | 621 mov(rcx, rbp); |
| 622 subptr(rcx, rsp); | |
| 0 | 623 int min_frame_size = (frame::link_offset - frame::interpreter_frame_initial_sp_offset) * wordSize; |
| 304 | 624 cmpptr(rcx, min_frame_size); |
| 0 | 625 jcc(Assembler::greaterEqual, L); |
| 626 stop("broken stack frame"); | |
| 627 bind(L); | |
| 628 } | |
| 629 if (verifyoop) verify_oop(rax, state); | |
| 304 | 630 Address index(noreg, rbx, Address::times_ptr); |
| 0 | 631 ExternalAddress tbl((address)table); |
| 632 ArrayAddress dispatch(tbl, index); | |
| 633 jump(dispatch); | |
| 634 } | |
| 635 | |
| 636 | |
| 637 void InterpreterMacroAssembler::dispatch_only(TosState state) { | |
| 638 dispatch_base(state, Interpreter::dispatch_table(state)); | |
| 639 } | |
| 640 | |
| 641 | |
| 642 void InterpreterMacroAssembler::dispatch_only_normal(TosState state) { | |
| 643 dispatch_base(state, Interpreter::normal_table(state)); | |
| 644 } | |
| 645 | |
| 646 void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) { | |
| 647 dispatch_base(state, Interpreter::normal_table(state), false); | |
| 648 } | |
| 649 | |
| 650 | |
| 651 void InterpreterMacroAssembler::dispatch_next(TosState state, int step) { | |
| 652 // load next bytecode (load before advancing rsi to prevent AGI) | |
| 653 load_unsigned_byte(rbx, Address(rsi, step)); | |
| 654 // advance rsi | |
| 655 increment(rsi, step); | |
| 656 dispatch_base(state, Interpreter::dispatch_table(state)); | |
| 657 } | |
| 658 | |
| 659 | |
| 660 void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) { | |
| 661 // load current bytecode | |
| 662 load_unsigned_byte(rbx, Address(rsi, 0)); | |
| 663 dispatch_base(state, table); | |
| 664 } | |
| 665 | |
| 666 // remove activation | |
| 667 // | |
| 668 // Unlock the receiver if this is a synchronized method. | |
| 669 // Unlock any Java monitors from syncronized blocks. | |
| 670 // Remove the activation from the stack. | |
| 671 // | |
| 672 // If there are locked Java monitors | |
| 673 // If throw_monitor_exception | |
| 674 // throws IllegalMonitorStateException | |
| 675 // Else if install_monitor_exception | |
| 676 // installs IllegalMonitorStateException | |
| 677 // Else | |
| 678 // no error processing | |
| 679 void InterpreterMacroAssembler::remove_activation(TosState state, Register ret_addr, | |
| 680 bool throw_monitor_exception, | |
| 681 bool install_monitor_exception, | |
| 682 bool notify_jvmdi) { | |
| 683 // Note: Registers rax, rdx and FPU ST(0) may be in use for the result | |
| 684 // check if synchronized method | |
| 685 Label unlocked, unlock, no_unlock; | |
| 686 | |
| 687 get_thread(rcx); | |
| 688 const Address do_not_unlock_if_synchronized(rcx, | |
| 689 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 690 | |
| 691 movbool(rbx, do_not_unlock_if_synchronized); | |
| 304 | 692 mov(rdi,rbx); |
| 0 | 693 movbool(do_not_unlock_if_synchronized, false); // reset the flag |
| 694 | |
| 304 | 695 movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); // get method access flags |
| 0 | 696 movl(rcx, Address(rbx, methodOopDesc::access_flags_offset())); |
| 697 | |
| 698 testl(rcx, JVM_ACC_SYNCHRONIZED); | |
| 699 jcc(Assembler::zero, unlocked); | |
| 700 | |
| 701 // Don't unlock anything if the _do_not_unlock_if_synchronized flag | |
| 702 // is set. | |
| 304 | 703 mov(rcx,rdi); |
| 0 | 704 testbool(rcx); |
| 705 jcc(Assembler::notZero, no_unlock); | |
| 706 | |
| 707 // unlock monitor | |
| 708 push(state); // save result | |
| 709 | |
| 710 // BasicObjectLock will be first in list, since this is a synchronized method. However, need | |
| 711 // to check that the object has not been unlocked by an explicit monitorexit bytecode. | |
| 712 const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); | |
| 304 | 713 lea (rdx, monitor); // address of first monitor |
| 0 | 714 |
| 304 | 715 movptr (rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); |
| 716 testptr(rax, rax); | |
| 717 jcc (Assembler::notZero, unlock); | |
| 0 | 718 |
| 719 pop(state); | |
| 720 if (throw_monitor_exception) { | |
| 721 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 722 | |
| 723 // Entry already unlocked, need to throw exception | |
| 724 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 725 should_not_reach_here(); | |
| 726 } else { | |
| 727 // Monitor already unlocked during a stack unroll. | |
| 728 // If requested, install an illegal_monitor_state_exception. | |
| 729 // Continue with stack unrolling. | |
| 730 if (install_monitor_exception) { | |
| 731 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 732 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
| 733 } | |
| 734 jmp(unlocked); | |
| 735 } | |
| 736 | |
| 737 bind(unlock); | |
| 738 unlock_object(rdx); | |
| 739 pop(state); | |
| 740 | |
| 741 // Check that for block-structured locking (i.e., that all locked objects has been unlocked) | |
| 742 bind(unlocked); | |
| 743 | |
| 744 // rax, rdx: Might contain return value | |
| 745 | |
| 746 // Check that all monitors are unlocked | |
| 747 { | |
| 748 Label loop, exception, entry, restart; | |
| 749 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 750 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 751 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 752 | |
| 753 bind(restart); | |
| 304 | 754 movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
| 755 lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | |
| 0 | 756 jmp(entry); |
| 757 | |
| 758 // Entry already locked, need to throw exception | |
| 759 bind(exception); | |
| 760 | |
| 761 if (throw_monitor_exception) { | |
| 762 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 763 | |
| 764 // Throw exception | |
| 765 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 766 should_not_reach_here(); | |
| 767 } else { | |
| 768 // Stack unrolling. Unlock object and install illegal_monitor_exception | |
| 769 // Unlock does not block, so don't have to worry about the frame | |
| 770 | |
| 771 push(state); | |
| 304 | 772 mov(rdx, rcx); |
| 0 | 773 unlock_object(rdx); |
| 774 pop(state); | |
| 775 | |
| 776 if (install_monitor_exception) { | |
| 777 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 778 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
| 779 } | |
| 780 | |
| 781 jmp(restart); | |
| 782 } | |
| 783 | |
| 784 bind(loop); | |
| 304 | 785 cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
| 0 | 786 jcc(Assembler::notEqual, exception); |
| 787 | |
| 304 | 788 addptr(rcx, entry_size); // otherwise advance to next entry |
| 0 | 789 bind(entry); |
| 304 | 790 cmpptr(rcx, rbx); // check if bottom reached |
| 0 | 791 jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
| 792 } | |
| 793 | |
| 794 bind(no_unlock); | |
| 795 | |
| 796 // jvmti support | |
| 797 if (notify_jvmdi) { | |
| 798 notify_method_exit(state, NotifyJVMTI); // preserve TOSCA | |
| 799 } else { | |
| 800 notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA | |
| 801 } | |
| 802 | |
| 803 // remove activation | |
| 304 | 804 movptr(rbx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 805 leave(); // remove frame anchor |
| 304 | 806 pop(ret_addr); // get return address |
| 807 mov(rsp, rbx); // set sp to sender sp | |
| 0 | 808 if (UseSSE) { |
| 809 // float and double are returned in xmm register in SSE-mode | |
| 810 if (state == ftos && UseSSE >= 1) { | |
| 304 | 811 subptr(rsp, wordSize); |
| 0 | 812 fstp_s(Address(rsp, 0)); |
| 813 movflt(xmm0, Address(rsp, 0)); | |
| 304 | 814 addptr(rsp, wordSize); |
| 0 | 815 } else if (state == dtos && UseSSE >= 2) { |
| 304 | 816 subptr(rsp, 2*wordSize); |
| 0 | 817 fstp_d(Address(rsp, 0)); |
| 818 movdbl(xmm0, Address(rsp, 0)); | |
| 304 | 819 addptr(rsp, 2*wordSize); |
| 0 | 820 } |
| 821 } | |
| 822 } | |
| 823 | |
| 824 #endif /* !CC_INTERP */ | |
| 825 | |
| 826 | |
| 827 // Lock object | |
| 828 // | |
| 829 // Argument: rdx : Points to BasicObjectLock to be used for locking. Must | |
| 830 // be initialized with object to lock | |
| 831 void InterpreterMacroAssembler::lock_object(Register lock_reg) { | |
| 832 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
| 833 | |
| 834 if (UseHeavyMonitors) { | |
| 835 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
| 836 } else { | |
| 837 | |
| 838 Label done; | |
| 839 | |
| 840 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
| 841 const Register obj_reg = rcx; // Will contain the oop | |
| 842 | |
| 843 const int obj_offset = BasicObjectLock::obj_offset_in_bytes(); | |
| 844 const int lock_offset = BasicObjectLock::lock_offset_in_bytes (); | |
| 845 const int mark_offset = lock_offset + BasicLock::displaced_header_offset_in_bytes(); | |
| 846 | |
| 847 Label slow_case; | |
| 848 | |
| 849 // Load object pointer into obj_reg %rcx | |
| 304 | 850 movptr(obj_reg, Address(lock_reg, obj_offset)); |
| 0 | 851 |
| 852 if (UseBiasedLocking) { | |
| 853 // Note: we use noreg for the temporary register since it's hard | |
| 854 // to come up with a free register on all incoming code paths | |
| 855 biased_locking_enter(lock_reg, obj_reg, swap_reg, noreg, false, done, &slow_case); | |
| 856 } | |
| 857 | |
| 858 // Load immediate 1 into swap_reg %rax, | |
| 304 | 859 movptr(swap_reg, (int32_t)1); |
| 0 | 860 |
| 861 // Load (object->mark() | 1) into swap_reg %rax, | |
| 304 | 862 orptr(swap_reg, Address(obj_reg, 0)); |
| 0 | 863 |
| 864 // Save (object->mark() | 1) into BasicLock's displaced header | |
| 304 | 865 movptr(Address(lock_reg, mark_offset), swap_reg); |
| 0 | 866 |
| 867 assert(lock_offset == 0, "displached header must be first word in BasicObjectLock"); | |
| 868 if (os::is_MP()) { | |
| 869 lock(); | |
| 870 } | |
| 304 | 871 cmpxchgptr(lock_reg, Address(obj_reg, 0)); |
| 0 | 872 if (PrintBiasedLockingStatistics) { |
| 873 cond_inc32(Assembler::zero, | |
| 874 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
| 875 } | |
| 876 jcc(Assembler::zero, done); | |
| 877 | |
| 878 // Test if the oopMark is an obvious stack pointer, i.e., | |
| 879 // 1) (mark & 3) == 0, and | |
| 880 // 2) rsp <= mark < mark + os::pagesize() | |
| 881 // | |
| 882 // These 3 tests can be done by evaluating the following | |
| 883 // expression: ((mark - rsp) & (3 - os::vm_page_size())), | |
| 884 // assuming both stack pointer and pagesize have their | |
| 885 // least significant 2 bits clear. | |
| 886 // NOTE: the oopMark is in swap_reg %rax, as the result of cmpxchg | |
| 304 | 887 subptr(swap_reg, rsp); |
| 888 andptr(swap_reg, 3 - os::vm_page_size()); | |
| 0 | 889 |
| 890 // Save the test result, for recursive case, the result is zero | |
| 304 | 891 movptr(Address(lock_reg, mark_offset), swap_reg); |
| 0 | 892 |
| 893 if (PrintBiasedLockingStatistics) { | |
| 894 cond_inc32(Assembler::zero, | |
| 895 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
| 896 } | |
| 897 jcc(Assembler::zero, done); | |
| 898 | |
| 899 bind(slow_case); | |
| 900 | |
| 901 // Call the runtime routine for slow case | |
| 902 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
| 903 | |
| 904 bind(done); | |
| 905 } | |
| 906 } | |
| 907 | |
| 908 | |
| 909 // Unlocks an object. Used in monitorexit bytecode and remove_activation. | |
| 910 // | |
| 911 // Argument: rdx : Points to BasicObjectLock structure for lock | |
| 912 // Throw an IllegalMonitorException if object is not locked by current thread | |
| 913 // | |
| 914 // Uses: rax, rbx, rcx, rdx | |
| 915 void InterpreterMacroAssembler::unlock_object(Register lock_reg) { | |
| 916 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
| 917 | |
| 918 if (UseHeavyMonitors) { | |
| 919 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); | |
| 920 } else { | |
| 921 Label done; | |
| 922 | |
| 923 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
| 924 const Register header_reg = rbx; // Will contain the old oopMark | |
| 925 const Register obj_reg = rcx; // Will contain the oop | |
| 926 | |
| 927 save_bcp(); // Save in case of exception | |
| 928 | |
| 929 // Convert from BasicObjectLock structure to object and BasicLock structure | |
| 930 // Store the BasicLock address into %rax, | |
| 304 | 931 lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes())); |
| 0 | 932 |
| 933 // Load oop into obj_reg(%rcx) | |
| 304 | 934 movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes ())); |
| 0 | 935 |
| 936 // Free entry | |
|
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937 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), NULL_WORD); |
| 0 | 938 |
| 939 if (UseBiasedLocking) { | |
| 940 biased_locking_exit(obj_reg, header_reg, done); | |
| 941 } | |
| 942 | |
| 943 // Load the old header from BasicLock structure | |
| 304 | 944 movptr(header_reg, Address(swap_reg, BasicLock::displaced_header_offset_in_bytes())); |
| 0 | 945 |
| 946 // Test for recursion | |
| 304 | 947 testptr(header_reg, header_reg); |
| 0 | 948 |
| 949 // zero for recursive case | |
| 950 jcc(Assembler::zero, done); | |
| 951 | |
| 952 // Atomic swap back the old header | |
| 953 if (os::is_MP()) lock(); | |
| 304 | 954 cmpxchgptr(header_reg, Address(obj_reg, 0)); |
| 0 | 955 |
| 956 // zero for recursive case | |
| 957 jcc(Assembler::zero, done); | |
| 958 | |
| 959 // Call the runtime routine for slow case. | |
| 304 | 960 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), obj_reg); // restore obj |
| 0 | 961 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); |
| 962 | |
| 963 bind(done); | |
| 964 | |
| 965 restore_bcp(); | |
| 966 } | |
| 967 } | |
| 968 | |
| 969 | |
| 970 #ifndef CC_INTERP | |
| 971 | |
| 972 // Test ImethodDataPtr. If it is null, continue at the specified label | |
| 973 void InterpreterMacroAssembler::test_method_data_pointer(Register mdp, Label& zero_continue) { | |
| 974 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 975 movptr(mdp, Address(rbp, frame::interpreter_frame_mdx_offset * wordSize)); |
| 976 testptr(mdp, mdp); | |
| 0 | 977 jcc(Assembler::zero, zero_continue); |
| 978 } | |
| 979 | |
| 980 | |
| 981 // Set the method data pointer for the current bcp. | |
| 982 void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() { | |
| 983 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 984 Label zero_continue; | |
| 304 | 985 push(rax); |
| 986 push(rbx); | |
| 0 | 987 |
| 988 get_method(rbx); | |
| 989 // Test MDO to avoid the call if it is NULL. | |
| 304 | 990 movptr(rax, Address(rbx, in_bytes(methodOopDesc::method_data_offset()))); |
| 991 testptr(rax, rax); | |
| 0 | 992 jcc(Assembler::zero, zero_continue); |
| 993 | |
| 994 // rbx,: method | |
| 995 // rsi: bcp | |
| 996 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, rsi); | |
| 997 // rax,: mdi | |
| 998 | |
| 304 | 999 movptr(rbx, Address(rbx, in_bytes(methodOopDesc::method_data_offset()))); |
| 1000 testptr(rbx, rbx); | |
| 0 | 1001 jcc(Assembler::zero, zero_continue); |
| 304 | 1002 addptr(rbx, in_bytes(methodDataOopDesc::data_offset())); |
| 1003 addptr(rbx, rax); | |
| 1004 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rbx); | |
| 0 | 1005 |
| 1006 bind(zero_continue); | |
| 304 | 1007 pop(rbx); |
| 1008 pop(rax); | |
| 0 | 1009 } |
| 1010 | |
| 1011 void InterpreterMacroAssembler::verify_method_data_pointer() { | |
| 1012 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 1013 #ifdef ASSERT | |
| 1014 Label verify_continue; | |
| 304 | 1015 push(rax); |
| 1016 push(rbx); | |
| 1017 push(rcx); | |
| 1018 push(rdx); | |
| 0 | 1019 test_method_data_pointer(rcx, verify_continue); // If mdp is zero, continue |
| 1020 get_method(rbx); | |
| 1021 | |
| 1022 // If the mdp is valid, it will point to a DataLayout header which is | |
| 1023 // consistent with the bcp. The converse is highly probable also. | |
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1024 load_unsigned_short(rdx, Address(rcx, in_bytes(DataLayout::bci_offset()))); |
| 304 | 1025 addptr(rdx, Address(rbx, methodOopDesc::const_offset())); |
| 1026 lea(rdx, Address(rdx, constMethodOopDesc::codes_offset())); | |
| 1027 cmpptr(rdx, rsi); | |
| 0 | 1028 jcc(Assembler::equal, verify_continue); |
| 1029 // rbx,: method | |
| 1030 // rsi: bcp | |
| 1031 // rcx: mdp | |
| 1032 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp), rbx, rsi, rcx); | |
| 1033 bind(verify_continue); | |
| 304 | 1034 pop(rdx); |
| 1035 pop(rcx); | |
| 1036 pop(rbx); | |
| 1037 pop(rax); | |
| 0 | 1038 #endif // ASSERT |
| 1039 } | |
| 1040 | |
| 1041 | |
| 1042 void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in, int constant, Register value) { | |
| 304 | 1043 // %%% this seems to be used to store counter data which is surely 32bits |
| 1044 // however 64bit side stores 64 bits which seems wrong | |
| 0 | 1045 assert(ProfileInterpreter, "must be profiling interpreter"); |
| 1046 Address data(mdp_in, constant); | |
| 304 | 1047 movptr(data, value); |
| 0 | 1048 } |
| 1049 | |
| 1050 | |
| 1051 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
| 1052 int constant, | |
| 1053 bool decrement) { | |
| 1054 // Counter address | |
| 1055 Address data(mdp_in, constant); | |
| 1056 | |
| 1057 increment_mdp_data_at(data, decrement); | |
| 1058 } | |
| 1059 | |
| 1060 | |
| 1061 void InterpreterMacroAssembler::increment_mdp_data_at(Address data, | |
| 1062 bool decrement) { | |
| 1063 | |
| 1064 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
| 1065 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 1066 | |
| 304 | 1067 // %%% 64bit treats this as 64 bit which seems unlikely |
| 0 | 1068 if (decrement) { |
| 1069 // Decrement the register. Set condition codes. | |
| 1070 addl(data, -DataLayout::counter_increment); | |
| 1071 // If the decrement causes the counter to overflow, stay negative | |
| 1072 Label L; | |
| 1073 jcc(Assembler::negative, L); | |
| 1074 addl(data, DataLayout::counter_increment); | |
| 1075 bind(L); | |
| 1076 } else { | |
| 1077 assert(DataLayout::counter_increment == 1, | |
| 1078 "flow-free idiom only works with 1"); | |
| 1079 // Increment the register. Set carry flag. | |
| 1080 addl(data, DataLayout::counter_increment); | |
| 1081 // If the increment causes the counter to overflow, pull back by 1. | |
| 1082 sbbl(data, 0); | |
| 1083 } | |
| 1084 } | |
| 1085 | |
| 1086 | |
| 1087 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
| 1088 Register reg, | |
| 1089 int constant, | |
| 1090 bool decrement) { | |
| 1091 Address data(mdp_in, reg, Address::times_1, constant); | |
| 1092 | |
| 1093 increment_mdp_data_at(data, decrement); | |
| 1094 } | |
| 1095 | |
| 1096 | |
| 1097 void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in, int flag_byte_constant) { | |
| 1098 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 1099 int header_offset = in_bytes(DataLayout::header_offset()); | |
| 1100 int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant); | |
| 1101 // Set the flag | |
| 1102 orl(Address(mdp_in, header_offset), header_bits); | |
| 1103 } | |
| 1104 | |
| 1105 | |
| 1106 | |
| 1107 void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in, | |
| 1108 int offset, | |
| 1109 Register value, | |
| 1110 Register test_value_out, | |
| 1111 Label& not_equal_continue) { | |
| 1112 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 1113 if (test_value_out == noreg) { | |
| 304 | 1114 cmpptr(value, Address(mdp_in, offset)); |
| 0 | 1115 } else { |
| 1116 // Put the test value into a register, so caller can use it: | |
| 304 | 1117 movptr(test_value_out, Address(mdp_in, offset)); |
| 1118 cmpptr(test_value_out, value); | |
| 0 | 1119 } |
| 1120 jcc(Assembler::notEqual, not_equal_continue); | |
| 1121 } | |
| 1122 | |
| 1123 | |
| 1124 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, int offset_of_disp) { | |
| 1125 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 1126 Address disp_address(mdp_in, offset_of_disp); | |
| 304 | 1127 addptr(mdp_in,disp_address); |
| 1128 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 1129 } |
| 1130 | |
| 1131 | |
| 1132 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp) { | |
| 1133 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 1134 Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp); | |
| 304 | 1135 addptr(mdp_in, disp_address); |
| 1136 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 1137 } |
| 1138 | |
| 1139 | |
| 1140 void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in, int constant) { | |
| 1141 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 1142 addptr(mdp_in, constant); |
| 1143 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 1144 } |
| 1145 | |
| 1146 | |
| 1147 void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) { | |
| 1148 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 1149 push(return_bci); // save/restore across call_VM |
| 0 | 1150 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret), return_bci); |
| 304 | 1151 pop(return_bci); |
| 0 | 1152 } |
| 1153 | |
| 1154 | |
| 1155 void InterpreterMacroAssembler::profile_taken_branch(Register mdp, Register bumped_count) { | |
| 1156 if (ProfileInterpreter) { | |
| 1157 Label profile_continue; | |
| 1158 | |
| 1159 // If no method data exists, go to profile_continue. | |
| 1160 // Otherwise, assign to mdp | |
| 1161 test_method_data_pointer(mdp, profile_continue); | |
| 1162 | |
| 1163 // We are taking a branch. Increment the taken count. | |
| 1164 // We inline increment_mdp_data_at to return bumped_count in a register | |
| 1165 //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset())); | |
| 1166 Address data(mdp, in_bytes(JumpData::taken_offset())); | |
| 304 | 1167 |
| 1168 // %%% 64bit treats these cells as 64 bit but they seem to be 32 bit | |
| 0 | 1169 movl(bumped_count,data); |
| 1170 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
| 1171 addl(bumped_count, DataLayout::counter_increment); | |
| 1172 sbbl(bumped_count, 0); | |
| 1173 movl(data,bumped_count); // Store back out | |
| 1174 | |
| 1175 // The method data pointer needs to be updated to reflect the new target. | |
| 1176 update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset())); | |
| 1177 bind (profile_continue); | |
| 1178 } | |
| 1179 } | |
| 1180 | |
| 1181 | |
| 1182 void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) { | |
| 1183 if (ProfileInterpreter) { | |
| 1184 Label profile_continue; | |
| 1185 | |
| 1186 // If no method data exists, go to profile_continue. | |
| 1187 test_method_data_pointer(mdp, profile_continue); | |
| 1188 | |
| 1189 // We are taking a branch. Increment the not taken count. | |
| 1190 increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset())); | |
| 1191 | |
| 1192 // The method data pointer needs to be updated to correspond to the next bytecode | |
| 1193 update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size())); | |
| 1194 bind (profile_continue); | |
| 1195 } | |
| 1196 } | |
| 1197 | |
| 1198 | |
| 1199 void InterpreterMacroAssembler::profile_call(Register mdp) { | |
| 1200 if (ProfileInterpreter) { | |
| 1201 Label profile_continue; | |
| 1202 | |
| 1203 // If no method data exists, go to profile_continue. | |
| 1204 test_method_data_pointer(mdp, profile_continue); | |
| 1205 | |
| 1206 // We are making a call. Increment the count. | |
| 1207 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1208 | |
| 1209 // The method data pointer needs to be updated to reflect the new target. | |
| 1210 update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size())); | |
| 1211 bind (profile_continue); | |
| 1212 } | |
| 1213 } | |
| 1214 | |
| 1215 | |
| 1216 void InterpreterMacroAssembler::profile_final_call(Register mdp) { | |
| 1217 if (ProfileInterpreter) { | |
| 1218 Label profile_continue; | |
| 1219 | |
| 1220 // If no method data exists, go to profile_continue. | |
| 1221 test_method_data_pointer(mdp, profile_continue); | |
| 1222 | |
| 1223 // We are making a call. Increment the count. | |
| 1224 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1225 | |
| 1226 // The method data pointer needs to be updated to reflect the new target. | |
| 1227 update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size())); | |
| 1228 bind (profile_continue); | |
| 1229 } | |
| 1230 } | |
| 1231 | |
| 1232 | |
|
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1233 void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp, |
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1234 Register reg2, |
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1235 bool receiver_can_be_null) { |
| 0 | 1236 if (ProfileInterpreter) { |
| 1237 Label profile_continue; | |
| 1238 | |
| 1239 // If no method data exists, go to profile_continue. | |
| 1240 test_method_data_pointer(mdp, profile_continue); | |
| 1241 | |
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1242 Label skip_receiver_profile; |
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1243 if (receiver_can_be_null) { |
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1244 Label not_null; |
|
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1245 testptr(receiver, receiver); |
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1246 jccb(Assembler::notZero, not_null); |
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1247 // We are making a call. Increment the count for null receiver. |
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1248 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
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1249 jmp(skip_receiver_profile); |
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1250 bind(not_null); |
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1251 } |
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1252 |
| 0 | 1253 // Record the receiver type. |
|
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1254 record_klass_in_profile(receiver, mdp, reg2, true); |
|
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1255 bind(skip_receiver_profile); |
| 0 | 1256 |
| 1257 // The method data pointer needs to be updated to reflect the new target. | |
| 1258 update_mdp_by_constant(mdp, | |
| 1259 in_bytes(VirtualCallData:: | |
| 1260 virtual_call_data_size())); | |
| 1261 bind(profile_continue); | |
| 1262 } | |
| 1263 } | |
| 1264 | |
| 1265 | |
| 1266 void InterpreterMacroAssembler::record_klass_in_profile_helper( | |
| 1267 Register receiver, Register mdp, | |
|
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1268 Register reg2, int start_row, |
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1269 Label& done, bool is_virtual_call) { |
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1270 if (TypeProfileWidth == 0) { |
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1271 if (is_virtual_call) { |
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1272 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
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1273 } |
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1274 return; |
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1275 } |
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1276 |
| 0 | 1277 int last_row = VirtualCallData::row_limit() - 1; |
| 1278 assert(start_row <= last_row, "must be work left to do"); | |
| 1279 // Test this row for both the receiver and for null. | |
| 1280 // Take any of three different outcomes: | |
| 1281 // 1. found receiver => increment count and goto done | |
| 1282 // 2. found null => keep looking for case 1, maybe allocate this cell | |
| 1283 // 3. found something else => keep looking for cases 1 and 2 | |
| 1284 // Case 3 is handled by a recursive call. | |
| 1285 for (int row = start_row; row <= last_row; row++) { | |
| 1286 Label next_test; | |
| 1287 bool test_for_null_also = (row == start_row); | |
| 1288 | |
| 1289 // See if the receiver is receiver[n]. | |
| 1290 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row)); | |
| 1291 test_mdp_data_at(mdp, recvr_offset, receiver, | |
| 1292 (test_for_null_also ? reg2 : noreg), | |
| 1293 next_test); | |
| 1294 // (Reg2 now contains the receiver from the CallData.) | |
| 1295 | |
| 1296 // The receiver is receiver[n]. Increment count[n]. | |
| 1297 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row)); | |
| 1298 increment_mdp_data_at(mdp, count_offset); | |
| 1299 jmp(done); | |
| 1300 bind(next_test); | |
| 1301 | |
| 1302 if (row == start_row) { | |
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1303 Label found_null; |
| 0 | 1304 // Failed the equality check on receiver[n]... Test for null. |
| 304 | 1305 testptr(reg2, reg2); |
| 0 | 1306 if (start_row == last_row) { |
| 1307 // The only thing left to do is handle the null case. | |
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1308 if (is_virtual_call) { |
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1309 jccb(Assembler::zero, found_null); |
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1310 // Receiver did not match any saved receiver and there is no empty row for it. |
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1311 // Increment total counter to indicate polymorphic case. |
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1312 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
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1313 jmp(done); |
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1314 bind(found_null); |
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1315 } else { |
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1316 jcc(Assembler::notZero, done); |
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1317 } |
| 0 | 1318 break; |
| 1319 } | |
| 1320 // Since null is rare, make it be the branch-taken case. | |
| 1321 jcc(Assembler::zero, found_null); | |
| 1322 | |
| 1323 // Put all the "Case 3" tests here. | |
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1324 record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done, is_virtual_call); |
| 0 | 1325 |
| 1326 // Found a null. Keep searching for a matching receiver, | |
| 1327 // but remember that this is an empty (unused) slot. | |
| 1328 bind(found_null); | |
| 1329 } | |
| 1330 } | |
| 1331 | |
| 1332 // In the fall-through case, we found no matching receiver, but we | |
| 1333 // observed the receiver[start_row] is NULL. | |
| 1334 | |
| 1335 // Fill in the receiver field and increment the count. | |
| 1336 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row)); | |
| 1337 set_mdp_data_at(mdp, recvr_offset, receiver); | |
| 1338 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row)); | |
| 304 | 1339 movptr(reg2, (int32_t)DataLayout::counter_increment); |
| 0 | 1340 set_mdp_data_at(mdp, count_offset, reg2); |
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1341 if (start_row > 0) { |
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1342 jmp(done); |
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1343 } |
| 0 | 1344 } |
| 1345 | |
| 1346 void InterpreterMacroAssembler::record_klass_in_profile(Register receiver, | |
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1347 Register mdp, Register reg2, |
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1348 bool is_virtual_call) { |
| 0 | 1349 assert(ProfileInterpreter, "must be profiling"); |
| 1350 Label done; | |
| 1351 | |
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1352 record_klass_in_profile_helper(receiver, mdp, reg2, 0, done, is_virtual_call); |
| 0 | 1353 |
| 1354 bind (done); | |
| 1355 } | |
| 1356 | |
| 1357 void InterpreterMacroAssembler::profile_ret(Register return_bci, Register mdp) { | |
| 1358 if (ProfileInterpreter) { | |
| 1359 Label profile_continue; | |
| 1360 uint row; | |
| 1361 | |
| 1362 // If no method data exists, go to profile_continue. | |
| 1363 test_method_data_pointer(mdp, profile_continue); | |
| 1364 | |
| 1365 // Update the total ret count. | |
| 1366 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1367 | |
| 1368 for (row = 0; row < RetData::row_limit(); row++) { | |
| 1369 Label next_test; | |
| 1370 | |
| 1371 // See if return_bci is equal to bci[n]: | |
| 1372 test_mdp_data_at(mdp, in_bytes(RetData::bci_offset(row)), return_bci, | |
| 1373 noreg, next_test); | |
| 1374 | |
| 1375 // return_bci is equal to bci[n]. Increment the count. | |
| 1376 increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row))); | |
| 1377 | |
| 1378 // The method data pointer needs to be updated to reflect the new target. | |
| 1379 update_mdp_by_offset(mdp, in_bytes(RetData::bci_displacement_offset(row))); | |
| 1380 jmp(profile_continue); | |
| 1381 bind(next_test); | |
| 1382 } | |
| 1383 | |
| 1384 update_mdp_for_ret(return_bci); | |
| 1385 | |
| 1386 bind (profile_continue); | |
| 1387 } | |
| 1388 } | |
| 1389 | |
| 1390 | |
| 1391 void InterpreterMacroAssembler::profile_null_seen(Register mdp) { | |
| 1392 if (ProfileInterpreter) { | |
| 1393 Label profile_continue; | |
| 1394 | |
| 1395 // If no method data exists, go to profile_continue. | |
| 1396 test_method_data_pointer(mdp, profile_continue); | |
| 1397 | |
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1398 set_mdp_flag_at(mdp, BitData::null_seen_byte_constant()); |
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1399 |
| 0 | 1400 // The method data pointer needs to be updated. |
| 1401 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
| 1402 if (TypeProfileCasts) { | |
| 1403 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1404 } | |
| 1405 update_mdp_by_constant(mdp, mdp_delta); | |
| 1406 | |
| 1407 bind (profile_continue); | |
| 1408 } | |
| 1409 } | |
| 1410 | |
| 1411 | |
| 1412 void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) { | |
| 1413 if (ProfileInterpreter && TypeProfileCasts) { | |
| 1414 Label profile_continue; | |
| 1415 | |
| 1416 // If no method data exists, go to profile_continue. | |
| 1417 test_method_data_pointer(mdp, profile_continue); | |
| 1418 | |
| 1419 int count_offset = in_bytes(CounterData::count_offset()); | |
| 1420 // Back up the address, since we have already bumped the mdp. | |
| 1421 count_offset -= in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1422 | |
| 1423 // *Decrement* the counter. We expect to see zero or small negatives. | |
| 1424 increment_mdp_data_at(mdp, count_offset, true); | |
| 1425 | |
| 1426 bind (profile_continue); | |
| 1427 } | |
| 1428 } | |
| 1429 | |
| 1430 | |
| 1431 void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2) | |
| 1432 { | |
| 1433 if (ProfileInterpreter) { | |
| 1434 Label profile_continue; | |
| 1435 | |
| 1436 // If no method data exists, go to profile_continue. | |
| 1437 test_method_data_pointer(mdp, profile_continue); | |
| 1438 | |
| 1439 // The method data pointer needs to be updated. | |
| 1440 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
| 1441 if (TypeProfileCasts) { | |
| 1442 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1443 | |
| 1444 // Record the object type. | |
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1445 record_klass_in_profile(klass, mdp, reg2, false); |
| 0 | 1446 assert(reg2 == rdi, "we know how to fix this blown reg"); |
| 1447 restore_locals(); // Restore EDI | |
| 1448 } | |
| 1449 update_mdp_by_constant(mdp, mdp_delta); | |
| 1450 | |
| 1451 bind(profile_continue); | |
| 1452 } | |
| 1453 } | |
| 1454 | |
| 1455 | |
| 1456 void InterpreterMacroAssembler::profile_switch_default(Register mdp) { | |
| 1457 if (ProfileInterpreter) { | |
| 1458 Label profile_continue; | |
| 1459 | |
| 1460 // If no method data exists, go to profile_continue. | |
| 1461 test_method_data_pointer(mdp, profile_continue); | |
| 1462 | |
| 1463 // Update the default case count | |
| 1464 increment_mdp_data_at(mdp, in_bytes(MultiBranchData::default_count_offset())); | |
| 1465 | |
| 1466 // The method data pointer needs to be updated. | |
| 1467 update_mdp_by_offset(mdp, in_bytes(MultiBranchData::default_displacement_offset())); | |
| 1468 | |
| 1469 bind (profile_continue); | |
| 1470 } | |
| 1471 } | |
| 1472 | |
| 1473 | |
| 1474 void InterpreterMacroAssembler::profile_switch_case(Register index, Register mdp, Register reg2) { | |
| 1475 if (ProfileInterpreter) { | |
| 1476 Label profile_continue; | |
| 1477 | |
| 1478 // If no method data exists, go to profile_continue. | |
| 1479 test_method_data_pointer(mdp, profile_continue); | |
| 1480 | |
| 1481 // Build the base (index * per_case_size_in_bytes()) + case_array_offset_in_bytes() | |
| 304 | 1482 movptr(reg2, (int32_t)in_bytes(MultiBranchData::per_case_size())); |
| 1483 // index is positive and so should have correct value if this code were | |
| 1484 // used on 64bits | |
| 1485 imulptr(index, reg2); | |
| 1486 addptr(index, in_bytes(MultiBranchData::case_array_offset())); | |
| 0 | 1487 |
| 1488 // Update the case count | |
| 1489 increment_mdp_data_at(mdp, index, in_bytes(MultiBranchData::relative_count_offset())); | |
| 1490 | |
| 1491 // The method data pointer needs to be updated. | |
| 1492 update_mdp_by_offset(mdp, index, in_bytes(MultiBranchData::relative_displacement_offset())); | |
| 1493 | |
| 1494 bind (profile_continue); | |
| 1495 } | |
| 1496 } | |
| 1497 | |
| 1498 #endif // !CC_INTERP | |
| 1499 | |
| 1500 | |
| 1501 | |
| 1502 void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) { | |
| 1503 if (state == atos) MacroAssembler::verify_oop(reg); | |
| 1504 } | |
| 1505 | |
| 1506 | |
| 1507 #ifndef CC_INTERP | |
| 1508 void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) { | |
| 1509 if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth); | |
| 1510 } | |
| 1511 | |
| 1512 #endif /* CC_INTERP */ | |
| 1513 | |
| 1514 | |
| 1515 void InterpreterMacroAssembler::notify_method_entry() { | |
| 1516 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
| 1517 // track stack depth. If it is possible to enter interp_only_mode we add | |
| 1518 // the code to check if the event should be sent. | |
| 1519 if (JvmtiExport::can_post_interpreter_events()) { | |
| 1520 Label L; | |
| 1521 get_thread(rcx); | |
| 1522 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
| 1523 testl(rcx,rcx); | |
| 1524 jcc(Assembler::zero, L); | |
| 1525 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry)); | |
| 1526 bind(L); | |
| 1527 } | |
| 1528 | |
| 1529 { | |
| 1530 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
| 1531 get_thread(rcx); | |
| 1532 get_method(rbx); | |
| 1533 call_VM_leaf( | |
| 1534 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), rcx, rbx); | |
| 1535 } | |
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1536 |
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1537 // RedefineClasses() tracing support for obsolete method entry |
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1538 if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) { |
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1539 get_thread(rcx); |
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1540 get_method(rbx); |
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1541 call_VM_leaf( |
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1542 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry), |
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1543 rcx, rbx); |
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1544 } |
| 0 | 1545 } |
| 1546 | |
| 1547 | |
| 1548 void InterpreterMacroAssembler::notify_method_exit( | |
| 1549 TosState state, NotifyMethodExitMode mode) { | |
| 1550 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
| 1551 // track stack depth. If it is possible to enter interp_only_mode we add | |
| 1552 // the code to check if the event should be sent. | |
| 1553 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) { | |
| 1554 Label L; | |
| 1555 // Note: frame::interpreter_frame_result has a dependency on how the | |
| 1556 // method result is saved across the call to post_method_exit. If this | |
| 1557 // is changed then the interpreter_frame_result implementation will | |
| 1558 // need to be updated too. | |
| 1559 | |
| 1560 // For c++ interpreter the result is always stored at a known location in the frame | |
| 1561 // template interpreter will leave it on the top of the stack. | |
| 1562 NOT_CC_INTERP(push(state);) | |
| 1563 get_thread(rcx); | |
| 1564 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
| 1565 testl(rcx,rcx); | |
| 1566 jcc(Assembler::zero, L); | |
| 1567 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit)); | |
| 1568 bind(L); | |
| 1569 NOT_CC_INTERP(pop(state);) | |
| 1570 } | |
| 1571 | |
| 1572 { | |
| 1573 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
| 304 | 1574 NOT_CC_INTERP(push(state)); |
| 0 | 1575 get_thread(rbx); |
| 1576 get_method(rcx); | |
| 1577 call_VM_leaf( | |
| 1578 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), | |
| 1579 rbx, rcx); | |
| 304 | 1580 NOT_CC_INTERP(pop(state)); |
| 0 | 1581 } |
| 1582 } |