Mercurial > hg > graal-jvmci-8
annotate src/cpu/x86/vm/interp_masm_x86_32.cpp @ 24166:dad95e57f1de
Update MDO with Reason_not_compiled_exception_handler
| author | Tom Rodriguez <tom.rodriguez@oracle.com> |
|---|---|
| date | Mon, 14 Aug 2017 08:55:23 -0700 |
| parents | 32b682649973 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 23614 | 2 * Copyright (c) 1997, 2016, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
|
12962
5ccbab1c69f3
8026251: New type profiling points: parameters to methods
roland
parents:
12882
diff
changeset
|
26 #include "interp_masm_x86.hpp" |
| 1972 | 27 #include "interpreter/interpreter.hpp" |
| 28 #include "interpreter/interpreterRuntime.hpp" | |
| 29 #include "oops/arrayOop.hpp" | |
| 30 #include "oops/markOop.hpp" | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
31 #include "oops/methodData.hpp" |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
32 #include "oops/method.hpp" |
| 1972 | 33 #include "prims/jvmtiExport.hpp" |
| 34 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
| 35 #include "prims/jvmtiThreadState.hpp" | |
| 36 #include "runtime/basicLock.hpp" | |
| 37 #include "runtime/biasedLocking.hpp" | |
| 38 #include "runtime/sharedRuntime.hpp" | |
|
7180
f34d701e952e
8003935: Simplify the needed includes for using Thread::current()
stefank
parents:
6725
diff
changeset
|
39 #include "runtime/thread.inline.hpp" |
| 0 | 40 |
| 41 | |
| 42 // Implementation of InterpreterMacroAssembler | |
| 43 #ifdef CC_INTERP | |
| 44 void InterpreterMacroAssembler::get_method(Register reg) { | |
| 304 | 45 movptr(reg, Address(rbp, -(sizeof(BytecodeInterpreter) + 2 * wordSize))); |
| 46 movptr(reg, Address(reg, byte_offset_of(BytecodeInterpreter, _method))); | |
| 0 | 47 } |
| 48 #endif // CC_INTERP | |
| 49 | |
| 50 | |
| 51 #ifndef CC_INTERP | |
| 52 void InterpreterMacroAssembler::call_VM_leaf_base( | |
| 53 address entry_point, | |
| 54 int number_of_arguments | |
| 55 ) { | |
| 56 // interpreter specific | |
| 57 // | |
| 58 // Note: No need to save/restore bcp & locals (rsi & rdi) pointer | |
| 59 // since these are callee saved registers and no blocking/ | |
| 60 // GC can happen in leaf calls. | |
| 61 // Further Note: DO NOT save/restore bcp/locals. If a caller has | |
| 62 // already saved them so that it can use rsi/rdi as temporaries | |
| 63 // then a save/restore here will DESTROY the copy the caller | |
| 64 // saved! There used to be a save_bcp() that only happened in | |
| 65 // the ASSERT path (no restore_bcp). Which caused bizarre failures | |
| 66 // when jvm built with ASSERTs. | |
| 67 #ifdef ASSERT | |
| 68 { Label L; | |
| 304 | 69 cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 70 jcc(Assembler::equal, L); |
| 71 stop("InterpreterMacroAssembler::call_VM_leaf_base: last_sp != NULL"); | |
| 72 bind(L); | |
| 73 } | |
| 74 #endif | |
| 75 // super call | |
| 76 MacroAssembler::call_VM_leaf_base(entry_point, number_of_arguments); | |
| 77 // interpreter specific | |
| 78 | |
| 79 // Used to ASSERT that rsi/rdi were equal to frame's bcp/locals | |
| 80 // but since they may not have been saved (and we don't want to | |
| 81 // save them here (see note above) the assert is invalid. | |
| 82 } | |
| 83 | |
| 84 | |
| 85 void InterpreterMacroAssembler::call_VM_base( | |
| 86 Register oop_result, | |
| 87 Register java_thread, | |
| 88 Register last_java_sp, | |
| 89 address entry_point, | |
| 90 int number_of_arguments, | |
| 91 bool check_exceptions | |
| 92 ) { | |
| 93 #ifdef ASSERT | |
| 94 { Label L; | |
| 304 | 95 cmpptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD); |
| 0 | 96 jcc(Assembler::equal, L); |
| 97 stop("InterpreterMacroAssembler::call_VM_base: last_sp != NULL"); | |
| 98 bind(L); | |
| 99 } | |
| 100 #endif /* ASSERT */ | |
| 101 // interpreter specific | |
| 102 // | |
| 103 // Note: Could avoid restoring locals ptr (callee saved) - however doesn't | |
| 104 // really make a difference for these runtime calls, since they are | |
| 105 // slow anyway. Btw., bcp must be saved/restored since it may change | |
| 106 // due to GC. | |
| 107 assert(java_thread == noreg , "not expecting a precomputed java thread"); | |
| 108 save_bcp(); | |
| 109 // super call | |
| 110 MacroAssembler::call_VM_base(oop_result, java_thread, last_java_sp, entry_point, number_of_arguments, check_exceptions); | |
| 111 // interpreter specific | |
| 112 restore_bcp(); | |
| 113 restore_locals(); | |
| 114 } | |
| 115 | |
| 116 | |
| 117 void InterpreterMacroAssembler::check_and_handle_popframe(Register java_thread) { | |
| 118 if (JvmtiExport::can_pop_frame()) { | |
| 119 Label L; | |
| 120 // Initiate popframe handling only if it is not already being processed. If the flag | |
| 121 // has the popframe_processing bit set, it means that this code is called *during* popframe | |
| 122 // handling - we don't want to reenter. | |
| 123 Register pop_cond = java_thread; // Not clear if any other register is available... | |
| 124 movl(pop_cond, Address(java_thread, JavaThread::popframe_condition_offset())); | |
| 125 testl(pop_cond, JavaThread::popframe_pending_bit); | |
| 126 jcc(Assembler::zero, L); | |
| 127 testl(pop_cond, JavaThread::popframe_processing_bit); | |
| 128 jcc(Assembler::notZero, L); | |
| 129 // Call Interpreter::remove_activation_preserving_args_entry() to get the | |
| 130 // address of the same-named entrypoint in the generated interpreter code. | |
| 131 call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_preserving_args_entry)); | |
| 132 jmp(rax); | |
| 133 bind(L); | |
| 134 get_thread(java_thread); | |
| 135 } | |
| 136 } | |
| 137 | |
| 138 | |
| 139 void InterpreterMacroAssembler::load_earlyret_value(TosState state) { | |
| 140 get_thread(rcx); | |
| 141 movl(rcx, Address(rcx, JavaThread::jvmti_thread_state_offset())); | |
| 142 const Address tos_addr (rcx, JvmtiThreadState::earlyret_tos_offset()); | |
| 143 const Address oop_addr (rcx, JvmtiThreadState::earlyret_oop_offset()); | |
| 144 const Address val_addr (rcx, JvmtiThreadState::earlyret_value_offset()); | |
| 145 const Address val_addr1(rcx, JvmtiThreadState::earlyret_value_offset() | |
| 146 + in_ByteSize(wordSize)); | |
| 147 switch (state) { | |
| 304 | 148 case atos: movptr(rax, oop_addr); |
|
512
db4caa99ef11
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
337
diff
changeset
|
149 movptr(oop_addr, NULL_WORD); |
| 0 | 150 verify_oop(rax, state); break; |
| 304 | 151 case ltos: |
| 152 movl(rdx, val_addr1); // fall through | |
| 0 | 153 case btos: // fall through |
| 23614 | 154 case ztos: // fall through |
| 0 | 155 case ctos: // fall through |
| 156 case stos: // fall through | |
| 157 case itos: movl(rax, val_addr); break; | |
| 158 case ftos: fld_s(val_addr); break; | |
| 159 case dtos: fld_d(val_addr); break; | |
| 160 case vtos: /* nothing to do */ break; | |
| 161 default : ShouldNotReachHere(); | |
| 162 } | |
| 163 // Clean up tos value in the thread object | |
| 304 | 164 movl(tos_addr, (int32_t) ilgl); |
|
512
db4caa99ef11
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
337
diff
changeset
|
165 movptr(val_addr, NULL_WORD); |
|
533
dc3ad84615cf
6795913: A few remaining wrong casts need to be fixed for building hotspot successfully on Mac OS.
xlu
parents:
512
diff
changeset
|
166 NOT_LP64(movptr(val_addr1, NULL_WORD)); |
| 0 | 167 } |
| 168 | |
| 169 | |
| 170 void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) { | |
| 171 if (JvmtiExport::can_force_early_return()) { | |
| 172 Label L; | |
| 173 Register tmp = java_thread; | |
| 304 | 174 movptr(tmp, Address(tmp, JavaThread::jvmti_thread_state_offset())); |
| 175 testptr(tmp, tmp); | |
| 0 | 176 jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit; |
| 177 | |
| 178 // Initiate earlyret handling only if it is not already being processed. | |
| 179 // If the flag has the earlyret_processing bit set, it means that this code | |
| 180 // is called *during* earlyret handling - we don't want to reenter. | |
| 181 movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset())); | |
| 182 cmpl(tmp, JvmtiThreadState::earlyret_pending); | |
| 183 jcc(Assembler::notEqual, L); | |
| 184 | |
| 185 // Call Interpreter::remove_activation_early_entry() to get the address of the | |
| 186 // same-named entrypoint in the generated interpreter code. | |
| 187 get_thread(java_thread); | |
| 304 | 188 movptr(tmp, Address(java_thread, JavaThread::jvmti_thread_state_offset())); |
| 0 | 189 pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset())); |
| 190 call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1); | |
| 191 jmp(rax); | |
| 192 bind(L); | |
| 193 get_thread(java_thread); | |
| 194 } | |
| 195 } | |
| 196 | |
| 197 | |
| 198 void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) { | |
| 199 assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode"); | |
|
13034
ea79ab313e98
8027252: Crash in interpreter because get_unsigned_2_byte_index_at_bcp reads 4 bytes
mgerdin
parents:
12962
diff
changeset
|
200 load_unsigned_short(reg, Address(rsi, bcp_offset)); |
| 304 | 201 bswapl(reg); |
| 0 | 202 shrl(reg, 16); |
| 203 } | |
| 204 | |
| 205 | |
| 1565 | 206 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register reg, int bcp_offset, size_t index_size) { |
| 0 | 207 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
| 1565 | 208 if (index_size == sizeof(u2)) { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
209 load_unsigned_short(reg, Address(rsi, bcp_offset)); |
| 1565 | 210 } else if (index_size == sizeof(u4)) { |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2118
diff
changeset
|
211 assert(EnableInvokeDynamic, "giant index used only for JSR 292"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
212 movl(reg, Address(rsi, bcp_offset)); |
| 1108 | 213 // Check if the secondary index definition is still ~x, otherwise |
| 214 // we have to change the following assembler code to calculate the | |
| 215 // plain index. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
216 assert(ConstantPool::decode_invokedynamic_index(~123) == 123, "else change next line"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
217 notl(reg); // convert to plain index |
| 1565 | 218 } else if (index_size == sizeof(u1)) { |
| 219 load_unsigned_byte(reg, Address(rsi, bcp_offset)); | |
| 220 } else { | |
| 221 ShouldNotReachHere(); | |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
222 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
223 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
224 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
225 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
226 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, |
| 1565 | 227 int bcp_offset, size_t index_size) { |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
228 assert_different_registers(cache, index); |
| 1565 | 229 get_cache_index_at_bcp(index, bcp_offset, index_size); |
| 304 | 230 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
| 0 | 231 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
232 assert(exact_log2(in_words(ConstantPoolCacheEntry::size())) == 2, "else change next line"); |
| 304 | 233 shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index |
| 0 | 234 } |
| 235 | |
| 236 | |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
237 void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache, |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
238 Register index, |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
239 Register bytecode, |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
240 int byte_no, |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
241 int bcp_offset, |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
242 size_t index_size) { |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
243 get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
244 movptr(bytecode, Address(cache, index, Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset())); |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
245 const int shift_count = (1 + byte_no) * BitsPerByte; |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
246 assert((byte_no == TemplateTable::f1_byte && shift_count == ConstantPoolCacheEntry::bytecode_1_shift) || |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
247 (byte_no == TemplateTable::f2_byte && shift_count == ConstantPoolCacheEntry::bytecode_2_shift), |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
248 "correct shift count"); |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
249 shrptr(bytecode, shift_count); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
250 assert(ConstantPoolCacheEntry::bytecode_1_mask == ConstantPoolCacheEntry::bytecode_2_mask, "common mask"); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
3960
diff
changeset
|
251 andptr(bytecode, ConstantPoolCacheEntry::bytecode_1_mask); |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
252 } |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
253 |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3808
diff
changeset
|
254 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
255 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, |
| 1565 | 256 int bcp_offset, size_t index_size) { |
| 0 | 257 assert(cache != tmp, "must use different register"); |
| 1565 | 258 get_cache_index_at_bcp(tmp, bcp_offset, index_size); |
| 0 | 259 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
| 260 // convert from field index to ConstantPoolCacheEntry index | |
| 261 // and from word offset to byte offset | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
262 assert(exact_log2(in_bytes(ConstantPoolCacheEntry::size_in_bytes())) == 2 + LogBytesPerWord, "else change next line"); |
| 0 | 263 shll(tmp, 2 + LogBytesPerWord); |
| 304 | 264 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
| 0 | 265 // skip past the header |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
266 addptr(cache, in_bytes(ConstantPoolCache::base_offset())); |
| 304 | 267 addptr(cache, tmp); // construct pointer to cache entry |
| 0 | 268 } |
| 269 | |
|
10105
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
270 void InterpreterMacroAssembler::get_method_counters(Register method, |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
271 Register mcs, Label& skip) { |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
272 Label has_counters; |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
273 movptr(mcs, Address(method, Method::method_counters_offset())); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
274 testptr(mcs, mcs); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
275 jcc(Assembler::notZero, has_counters); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
276 call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
277 InterpreterRuntime::build_method_counters), method); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
278 movptr(mcs, Address(method,Method::method_counters_offset())); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
279 testptr(mcs, mcs); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
280 jcc(Assembler::zero, skip); // No MethodCounters allocated, OutOfMemory |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
281 bind(has_counters); |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
282 } |
|
aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents:
7180
diff
changeset
|
283 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
284 // Load object from cpool->resolved_references(index) |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
285 void InterpreterMacroAssembler::load_resolved_reference_at_index( |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
286 Register result, Register index) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
287 assert_different_registers(result, index); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
288 // convert from field index to resolved_references() index and from |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
289 // word index to byte offset. Since this is a java object, it can be compressed |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
290 Register tmp = index; // reuse |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
291 shll(tmp, LogBytesPerHeapOop); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
292 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
293 get_constant_pool(result); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
294 // load pointer for resolved_references[] objArray |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
295 movptr(result, Address(result, ConstantPool::resolved_references_offset_in_bytes())); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
296 // JNIHandles::resolve(obj); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
297 movptr(result, Address(result, 0)); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
298 // Add in the index |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
299 addptr(result, tmp); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
300 load_heap_oop(result, Address(result, arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
301 } |
| 0 | 302 |
| 303 // Generate a subtype check: branch to ok_is_subtype if sub_klass is | |
| 304 // a subtype of super_klass. EAX holds the super_klass. Blows ECX. | |
| 305 // Resets EDI to locals. Register sub_klass cannot be any of the above. | |
| 306 void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) { | |
| 307 assert( Rsub_klass != rax, "rax, holds superklass" ); | |
|
644
c517646eef23
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
625
diff
changeset
|
308 assert( Rsub_klass != rcx, "used as a temp" ); |
|
c517646eef23
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
625
diff
changeset
|
309 assert( Rsub_klass != rdi, "used as a temp, restored from locals" ); |
| 0 | 310 |
| 311 // Profile the not-null value's klass. | |
|
644
c517646eef23
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
625
diff
changeset
|
312 profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi |
| 0 | 313 |
|
644
c517646eef23
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
625
diff
changeset
|
314 // Do the check. |
|
c517646eef23
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
625
diff
changeset
|
315 check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx |
| 0 | 316 |
|
644
c517646eef23
6813212: factor duplicated assembly code for general subclass check (for 6655638)
jrose
parents:
625
diff
changeset
|
317 // Profile the failure of the check. |
| 0 | 318 profile_typecheck_failed(rcx); // blows rcx |
| 319 } | |
| 320 | |
| 321 void InterpreterMacroAssembler::f2ieee() { | |
| 322 if (IEEEPrecision) { | |
| 323 fstp_s(Address(rsp, 0)); | |
| 324 fld_s(Address(rsp, 0)); | |
| 325 } | |
| 326 } | |
| 327 | |
| 328 | |
| 329 void InterpreterMacroAssembler::d2ieee() { | |
| 330 if (IEEEPrecision) { | |
| 331 fstp_d(Address(rsp, 0)); | |
| 332 fld_d(Address(rsp, 0)); | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 // Java Expression Stack | |
| 337 | |
| 338 void InterpreterMacroAssembler::pop_ptr(Register r) { | |
| 304 | 339 pop(r); |
| 0 | 340 } |
| 341 | |
| 342 void InterpreterMacroAssembler::pop_i(Register r) { | |
| 304 | 343 pop(r); |
| 0 | 344 } |
| 345 | |
| 346 void InterpreterMacroAssembler::pop_l(Register lo, Register hi) { | |
| 304 | 347 pop(lo); |
| 348 pop(hi); | |
| 0 | 349 } |
| 350 | |
| 351 void InterpreterMacroAssembler::pop_f() { | |
| 352 fld_s(Address(rsp, 0)); | |
| 304 | 353 addptr(rsp, 1 * wordSize); |
| 0 | 354 } |
| 355 | |
| 356 void InterpreterMacroAssembler::pop_d() { | |
| 357 fld_d(Address(rsp, 0)); | |
| 304 | 358 addptr(rsp, 2 * wordSize); |
| 0 | 359 } |
| 360 | |
| 361 | |
| 362 void InterpreterMacroAssembler::pop(TosState state) { | |
| 363 switch (state) { | |
| 364 case atos: pop_ptr(rax); break; | |
| 365 case btos: // fall through | |
| 23614 | 366 case ztos: // fall through |
| 0 | 367 case ctos: // fall through |
| 368 case stos: // fall through | |
| 369 case itos: pop_i(rax); break; | |
| 370 case ltos: pop_l(rax, rdx); break; | |
| 371 case ftos: pop_f(); break; | |
| 372 case dtos: pop_d(); break; | |
| 373 case vtos: /* nothing to do */ break; | |
| 374 default : ShouldNotReachHere(); | |
| 375 } | |
| 376 verify_oop(rax, state); | |
| 377 } | |
| 378 | |
| 379 void InterpreterMacroAssembler::push_ptr(Register r) { | |
| 304 | 380 push(r); |
| 0 | 381 } |
| 382 | |
| 383 void InterpreterMacroAssembler::push_i(Register r) { | |
| 304 | 384 push(r); |
| 0 | 385 } |
| 386 | |
| 387 void InterpreterMacroAssembler::push_l(Register lo, Register hi) { | |
| 304 | 388 push(hi); |
| 389 push(lo); | |
| 0 | 390 } |
| 391 | |
| 392 void InterpreterMacroAssembler::push_f() { | |
| 393 // Do not schedule for no AGI! Never write beyond rsp! | |
| 304 | 394 subptr(rsp, 1 * wordSize); |
| 0 | 395 fstp_s(Address(rsp, 0)); |
| 396 } | |
| 397 | |
| 398 void InterpreterMacroAssembler::push_d(Register r) { | |
| 1506 | 399 // Do not schedule for no AGI! Never write beyond rsp! |
| 400 subptr(rsp, 2 * wordSize); | |
| 401 fstp_d(Address(rsp, 0)); | |
| 0 | 402 } |
| 403 | |
| 404 | |
| 405 void InterpreterMacroAssembler::push(TosState state) { | |
| 406 verify_oop(rax, state); | |
| 407 switch (state) { | |
| 408 case atos: push_ptr(rax); break; | |
| 409 case btos: // fall through | |
| 23614 | 410 case ztos: // fall through |
| 0 | 411 case ctos: // fall through |
| 412 case stos: // fall through | |
| 413 case itos: push_i(rax); break; | |
| 414 case ltos: push_l(rax, rdx); break; | |
| 415 case ftos: push_f(); break; | |
| 416 case dtos: push_d(rax); break; | |
| 417 case vtos: /* nothing to do */ break; | |
| 418 default : ShouldNotReachHere(); | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 | |
| 1506 | 423 // Helpers for swap and dup |
| 424 void InterpreterMacroAssembler::load_ptr(int n, Register val) { | |
| 304 | 425 movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n))); |
| 0 | 426 } |
| 427 | |
| 1506 | 428 void InterpreterMacroAssembler::store_ptr(int n, Register val) { |
| 429 movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val); | |
| 0 | 430 } |
| 431 | |
| 710 | 432 void InterpreterMacroAssembler::prepare_to_jump_from_interpreted() { |
| 0 | 433 // set sender sp |
| 304 | 434 lea(rsi, Address(rsp, wordSize)); |
| 0 | 435 // record last_sp |
| 304 | 436 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), rsi); |
| 710 | 437 } |
| 438 | |
| 439 | |
| 440 // Jump to from_interpreted entry of a call unless single stepping is possible | |
| 441 // in this thread in which case we must call the i2i entry | |
| 442 void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) { | |
| 443 prepare_to_jump_from_interpreted(); | |
| 0 | 444 |
| 445 if (JvmtiExport::can_post_interpreter_events()) { | |
| 446 Label run_compiled_code; | |
| 447 // JVMTI events, such as single-stepping, are implemented partly by avoiding running | |
| 448 // compiled code in threads for which the event is enabled. Check here for | |
| 449 // interp_only_mode if these events CAN be enabled. | |
| 450 get_thread(temp); | |
| 451 // interp_only is an int, on little endian it is sufficient to test the byte only | |
|
3808
341a57af9b0a
6990212: JSR 292 JVMTI MethodEnter hook is not called for JSR 292 bootstrap and target methods
never
parents:
3336
diff
changeset
|
452 // Is a cmpl faster? |
| 0 | 453 cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0); |
|
3808
341a57af9b0a
6990212: JSR 292 JVMTI MethodEnter hook is not called for JSR 292 bootstrap and target methods
never
parents:
3336
diff
changeset
|
454 jccb(Assembler::zero, run_compiled_code); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
455 jmp(Address(method, Method::interpreter_entry_offset())); |
| 0 | 456 bind(run_compiled_code); |
| 457 } | |
| 458 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
459 jmp(Address(method, Method::from_interpreted_offset())); |
| 0 | 460 |
| 461 } | |
| 462 | |
| 463 | |
| 464 // The following two routines provide a hook so that an implementation | |
| 465 // can schedule the dispatch in two parts. Intel does not do this. | |
| 466 void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) { | |
| 467 // Nothing Intel-specific to be done here. | |
| 468 } | |
| 469 | |
| 470 void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) { | |
| 471 dispatch_next(state, step); | |
| 472 } | |
| 473 | |
| 474 void InterpreterMacroAssembler::dispatch_base(TosState state, address* table, | |
| 475 bool verifyoop) { | |
| 476 verify_FPU(1, state); | |
| 477 if (VerifyActivationFrameSize) { | |
| 478 Label L; | |
| 304 | 479 mov(rcx, rbp); |
| 480 subptr(rcx, rsp); | |
| 0 | 481 int min_frame_size = (frame::link_offset - frame::interpreter_frame_initial_sp_offset) * wordSize; |
| 304 | 482 cmpptr(rcx, min_frame_size); |
| 0 | 483 jcc(Assembler::greaterEqual, L); |
| 484 stop("broken stack frame"); | |
| 485 bind(L); | |
| 486 } | |
| 487 if (verifyoop) verify_oop(rax, state); | |
| 304 | 488 Address index(noreg, rbx, Address::times_ptr); |
| 0 | 489 ExternalAddress tbl((address)table); |
| 490 ArrayAddress dispatch(tbl, index); | |
| 491 jump(dispatch); | |
| 492 } | |
| 493 | |
| 494 | |
| 495 void InterpreterMacroAssembler::dispatch_only(TosState state) { | |
| 496 dispatch_base(state, Interpreter::dispatch_table(state)); | |
| 497 } | |
| 498 | |
| 499 | |
| 500 void InterpreterMacroAssembler::dispatch_only_normal(TosState state) { | |
| 501 dispatch_base(state, Interpreter::normal_table(state)); | |
| 502 } | |
| 503 | |
| 504 void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) { | |
| 505 dispatch_base(state, Interpreter::normal_table(state), false); | |
| 506 } | |
| 507 | |
| 508 | |
| 509 void InterpreterMacroAssembler::dispatch_next(TosState state, int step) { | |
| 510 // load next bytecode (load before advancing rsi to prevent AGI) | |
| 511 load_unsigned_byte(rbx, Address(rsi, step)); | |
| 512 // advance rsi | |
| 513 increment(rsi, step); | |
| 514 dispatch_base(state, Interpreter::dispatch_table(state)); | |
| 515 } | |
| 516 | |
| 517 | |
| 518 void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) { | |
| 519 // load current bytecode | |
| 520 load_unsigned_byte(rbx, Address(rsi, 0)); | |
| 521 dispatch_base(state, table); | |
| 522 } | |
| 523 | |
| 524 // remove activation | |
| 525 // | |
| 526 // Unlock the receiver if this is a synchronized method. | |
| 527 // Unlock any Java monitors from syncronized blocks. | |
| 528 // Remove the activation from the stack. | |
| 529 // | |
| 530 // If there are locked Java monitors | |
| 531 // If throw_monitor_exception | |
| 532 // throws IllegalMonitorStateException | |
| 533 // Else if install_monitor_exception | |
| 534 // installs IllegalMonitorStateException | |
| 535 // Else | |
| 536 // no error processing | |
| 537 void InterpreterMacroAssembler::remove_activation(TosState state, Register ret_addr, | |
| 538 bool throw_monitor_exception, | |
| 539 bool install_monitor_exception, | |
| 540 bool notify_jvmdi) { | |
| 541 // Note: Registers rax, rdx and FPU ST(0) may be in use for the result | |
| 542 // check if synchronized method | |
| 543 Label unlocked, unlock, no_unlock; | |
| 544 | |
| 545 get_thread(rcx); | |
| 546 const Address do_not_unlock_if_synchronized(rcx, | |
| 547 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 548 | |
| 549 movbool(rbx, do_not_unlock_if_synchronized); | |
| 304 | 550 mov(rdi,rbx); |
| 0 | 551 movbool(do_not_unlock_if_synchronized, false); // reset the flag |
| 552 | |
| 304 | 553 movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); // get method access flags |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
554 movl(rcx, Address(rbx, Method::access_flags_offset())); |
| 0 | 555 |
| 556 testl(rcx, JVM_ACC_SYNCHRONIZED); | |
| 557 jcc(Assembler::zero, unlocked); | |
| 558 | |
| 559 // Don't unlock anything if the _do_not_unlock_if_synchronized flag | |
| 560 // is set. | |
| 304 | 561 mov(rcx,rdi); |
| 0 | 562 testbool(rcx); |
| 563 jcc(Assembler::notZero, no_unlock); | |
| 564 | |
| 565 // unlock monitor | |
| 566 push(state); // save result | |
| 567 | |
| 568 // BasicObjectLock will be first in list, since this is a synchronized method. However, need | |
| 569 // to check that the object has not been unlocked by an explicit monitorexit bytecode. | |
| 570 const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); | |
| 304 | 571 lea (rdx, monitor); // address of first monitor |
| 0 | 572 |
| 304 | 573 movptr (rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); |
| 574 testptr(rax, rax); | |
| 575 jcc (Assembler::notZero, unlock); | |
| 0 | 576 |
| 577 pop(state); | |
| 578 if (throw_monitor_exception) { | |
| 579 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 580 | |
| 581 // Entry already unlocked, need to throw exception | |
| 582 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 583 should_not_reach_here(); | |
| 584 } else { | |
| 585 // Monitor already unlocked during a stack unroll. | |
| 586 // If requested, install an illegal_monitor_state_exception. | |
| 587 // Continue with stack unrolling. | |
| 588 if (install_monitor_exception) { | |
| 589 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 590 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
| 591 } | |
| 592 jmp(unlocked); | |
| 593 } | |
| 594 | |
| 595 bind(unlock); | |
| 596 unlock_object(rdx); | |
| 597 pop(state); | |
| 598 | |
| 599 // Check that for block-structured locking (i.e., that all locked objects has been unlocked) | |
| 600 bind(unlocked); | |
| 601 | |
| 602 // rax, rdx: Might contain return value | |
| 603 | |
| 604 // Check that all monitors are unlocked | |
| 605 { | |
| 606 Label loop, exception, entry, restart; | |
| 607 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 608 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 609 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 610 | |
| 611 bind(restart); | |
| 304 | 612 movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
| 613 lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | |
| 0 | 614 jmp(entry); |
| 615 | |
| 616 // Entry already locked, need to throw exception | |
| 617 bind(exception); | |
| 618 | |
| 619 if (throw_monitor_exception) { | |
| 620 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 621 | |
| 622 // Throw exception | |
| 623 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 624 should_not_reach_here(); | |
| 625 } else { | |
| 626 // Stack unrolling. Unlock object and install illegal_monitor_exception | |
| 627 // Unlock does not block, so don't have to worry about the frame | |
| 628 | |
| 629 push(state); | |
| 304 | 630 mov(rdx, rcx); |
| 0 | 631 unlock_object(rdx); |
| 632 pop(state); | |
| 633 | |
| 634 if (install_monitor_exception) { | |
| 635 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 636 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
| 637 } | |
| 638 | |
| 639 jmp(restart); | |
| 640 } | |
| 641 | |
| 642 bind(loop); | |
| 304 | 643 cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
| 0 | 644 jcc(Assembler::notEqual, exception); |
| 645 | |
| 304 | 646 addptr(rcx, entry_size); // otherwise advance to next entry |
| 0 | 647 bind(entry); |
| 304 | 648 cmpptr(rcx, rbx); // check if bottom reached |
| 0 | 649 jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
| 650 } | |
| 651 | |
| 652 bind(no_unlock); | |
| 653 | |
| 654 // jvmti support | |
| 655 if (notify_jvmdi) { | |
| 656 notify_method_exit(state, NotifyJVMTI); // preserve TOSCA | |
| 657 } else { | |
| 658 notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA | |
| 659 } | |
| 660 | |
| 661 // remove activation | |
| 304 | 662 movptr(rbx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 663 leave(); // remove frame anchor |
| 304 | 664 pop(ret_addr); // get return address |
| 665 mov(rsp, rbx); // set sp to sender sp | |
| 0 | 666 if (UseSSE) { |
| 667 // float and double are returned in xmm register in SSE-mode | |
| 668 if (state == ftos && UseSSE >= 1) { | |
| 304 | 669 subptr(rsp, wordSize); |
| 0 | 670 fstp_s(Address(rsp, 0)); |
| 671 movflt(xmm0, Address(rsp, 0)); | |
| 304 | 672 addptr(rsp, wordSize); |
| 0 | 673 } else if (state == dtos && UseSSE >= 2) { |
| 304 | 674 subptr(rsp, 2*wordSize); |
| 0 | 675 fstp_d(Address(rsp, 0)); |
| 676 movdbl(xmm0, Address(rsp, 0)); | |
| 304 | 677 addptr(rsp, 2*wordSize); |
| 0 | 678 } |
| 679 } | |
| 680 } | |
| 681 | |
| 682 #endif /* !CC_INTERP */ | |
| 683 | |
| 684 | |
| 685 // Lock object | |
| 686 // | |
| 687 // Argument: rdx : Points to BasicObjectLock to be used for locking. Must | |
| 688 // be initialized with object to lock | |
| 689 void InterpreterMacroAssembler::lock_object(Register lock_reg) { | |
| 690 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
| 691 | |
| 692 if (UseHeavyMonitors) { | |
| 693 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
| 694 } else { | |
| 695 | |
| 696 Label done; | |
| 697 | |
| 698 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
| 699 const Register obj_reg = rcx; // Will contain the oop | |
| 700 | |
| 701 const int obj_offset = BasicObjectLock::obj_offset_in_bytes(); | |
| 702 const int lock_offset = BasicObjectLock::lock_offset_in_bytes (); | |
| 703 const int mark_offset = lock_offset + BasicLock::displaced_header_offset_in_bytes(); | |
| 704 | |
| 705 Label slow_case; | |
| 706 | |
| 707 // Load object pointer into obj_reg %rcx | |
| 304 | 708 movptr(obj_reg, Address(lock_reg, obj_offset)); |
| 0 | 709 |
| 710 if (UseBiasedLocking) { | |
| 711 // Note: we use noreg for the temporary register since it's hard | |
| 712 // to come up with a free register on all incoming code paths | |
| 713 biased_locking_enter(lock_reg, obj_reg, swap_reg, noreg, false, done, &slow_case); | |
| 714 } | |
| 715 | |
| 716 // Load immediate 1 into swap_reg %rax, | |
| 304 | 717 movptr(swap_reg, (int32_t)1); |
| 0 | 718 |
| 719 // Load (object->mark() | 1) into swap_reg %rax, | |
| 304 | 720 orptr(swap_reg, Address(obj_reg, 0)); |
| 0 | 721 |
| 722 // Save (object->mark() | 1) into BasicLock's displaced header | |
| 304 | 723 movptr(Address(lock_reg, mark_offset), swap_reg); |
| 0 | 724 |
| 725 assert(lock_offset == 0, "displached header must be first word in BasicObjectLock"); | |
| 726 if (os::is_MP()) { | |
| 727 lock(); | |
| 728 } | |
| 304 | 729 cmpxchgptr(lock_reg, Address(obj_reg, 0)); |
| 0 | 730 if (PrintBiasedLockingStatistics) { |
| 731 cond_inc32(Assembler::zero, | |
| 732 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
| 733 } | |
| 734 jcc(Assembler::zero, done); | |
| 735 | |
| 736 // Test if the oopMark is an obvious stack pointer, i.e., | |
| 737 // 1) (mark & 3) == 0, and | |
| 738 // 2) rsp <= mark < mark + os::pagesize() | |
| 739 // | |
| 740 // These 3 tests can be done by evaluating the following | |
| 741 // expression: ((mark - rsp) & (3 - os::vm_page_size())), | |
| 742 // assuming both stack pointer and pagesize have their | |
| 743 // least significant 2 bits clear. | |
| 744 // NOTE: the oopMark is in swap_reg %rax, as the result of cmpxchg | |
| 304 | 745 subptr(swap_reg, rsp); |
| 746 andptr(swap_reg, 3 - os::vm_page_size()); | |
| 0 | 747 |
| 748 // Save the test result, for recursive case, the result is zero | |
| 304 | 749 movptr(Address(lock_reg, mark_offset), swap_reg); |
| 0 | 750 |
| 751 if (PrintBiasedLockingStatistics) { | |
| 752 cond_inc32(Assembler::zero, | |
| 753 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
| 754 } | |
| 755 jcc(Assembler::zero, done); | |
| 756 | |
| 757 bind(slow_case); | |
| 758 | |
| 759 // Call the runtime routine for slow case | |
| 760 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
| 761 | |
| 762 bind(done); | |
| 763 } | |
| 764 } | |
| 765 | |
| 766 | |
| 767 // Unlocks an object. Used in monitorexit bytecode and remove_activation. | |
| 768 // | |
| 769 // Argument: rdx : Points to BasicObjectLock structure for lock | |
| 770 // Throw an IllegalMonitorException if object is not locked by current thread | |
| 771 // | |
| 772 // Uses: rax, rbx, rcx, rdx | |
| 773 void InterpreterMacroAssembler::unlock_object(Register lock_reg) { | |
| 774 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
| 775 | |
| 776 if (UseHeavyMonitors) { | |
| 777 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); | |
| 778 } else { | |
| 779 Label done; | |
| 780 | |
| 781 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
| 782 const Register header_reg = rbx; // Will contain the old oopMark | |
| 783 const Register obj_reg = rcx; // Will contain the oop | |
| 784 | |
| 785 save_bcp(); // Save in case of exception | |
| 786 | |
| 787 // Convert from BasicObjectLock structure to object and BasicLock structure | |
| 788 // Store the BasicLock address into %rax, | |
| 304 | 789 lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes())); |
| 0 | 790 |
| 791 // Load oop into obj_reg(%rcx) | |
| 304 | 792 movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes ())); |
| 0 | 793 |
| 794 // Free entry | |
|
512
db4caa99ef11
6787106: Hotspot 32 bit build fails on platforms having different definitions for intptr_t & int32_t
xlu
parents:
337
diff
changeset
|
795 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), NULL_WORD); |
| 0 | 796 |
| 797 if (UseBiasedLocking) { | |
| 798 biased_locking_exit(obj_reg, header_reg, done); | |
| 799 } | |
| 800 | |
| 801 // Load the old header from BasicLock structure | |
| 304 | 802 movptr(header_reg, Address(swap_reg, BasicLock::displaced_header_offset_in_bytes())); |
| 0 | 803 |
| 804 // Test for recursion | |
| 304 | 805 testptr(header_reg, header_reg); |
| 0 | 806 |
| 807 // zero for recursive case | |
| 808 jcc(Assembler::zero, done); | |
| 809 | |
| 810 // Atomic swap back the old header | |
| 811 if (os::is_MP()) lock(); | |
| 304 | 812 cmpxchgptr(header_reg, Address(obj_reg, 0)); |
| 0 | 813 |
| 814 // zero for recursive case | |
| 815 jcc(Assembler::zero, done); | |
| 816 | |
| 817 // Call the runtime routine for slow case. | |
| 304 | 818 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), obj_reg); // restore obj |
| 0 | 819 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); |
| 820 | |
| 821 bind(done); | |
| 822 | |
| 823 restore_bcp(); | |
| 824 } | |
| 825 } | |
| 826 | |
| 827 | |
| 828 #ifndef CC_INTERP | |
| 829 | |
| 830 // Test ImethodDataPtr. If it is null, continue at the specified label | |
| 831 void InterpreterMacroAssembler::test_method_data_pointer(Register mdp, Label& zero_continue) { | |
| 832 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 833 movptr(mdp, Address(rbp, frame::interpreter_frame_mdx_offset * wordSize)); |
| 834 testptr(mdp, mdp); | |
| 0 | 835 jcc(Assembler::zero, zero_continue); |
| 836 } | |
| 837 | |
| 838 | |
| 839 // Set the method data pointer for the current bcp. | |
| 840 void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() { | |
| 841 assert(ProfileInterpreter, "must be profiling interpreter"); | |
|
2118
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
842 Label set_mdp; |
| 304 | 843 push(rax); |
| 844 push(rbx); | |
| 0 | 845 |
| 846 get_method(rbx); | |
| 847 // Test MDO to avoid the call if it is NULL. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
848 movptr(rax, Address(rbx, in_bytes(Method::method_data_offset()))); |
| 304 | 849 testptr(rax, rax); |
|
2118
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
850 jcc(Assembler::zero, set_mdp); |
| 0 | 851 // rbx,: method |
| 852 // rsi: bcp | |
| 853 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, rsi); | |
| 854 // rax,: mdi | |
|
2118
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
855 // mdo is guaranteed to be non-zero here, we checked for it before the call. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
856 movptr(rbx, Address(rbx, in_bytes(Method::method_data_offset()))); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
857 addptr(rbx, in_bytes(MethodData::data_offset())); |
|
2118
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
858 addptr(rax, rbx); |
|
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
859 bind(set_mdp); |
|
dd031b2226de
4930919: race condition in MDO creation at back branch locations
iveresov
parents:
1972
diff
changeset
|
860 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rax); |
| 304 | 861 pop(rbx); |
| 862 pop(rax); | |
| 0 | 863 } |
| 864 | |
| 865 void InterpreterMacroAssembler::verify_method_data_pointer() { | |
| 866 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 867 #ifdef ASSERT | |
| 868 Label verify_continue; | |
| 304 | 869 push(rax); |
| 870 push(rbx); | |
| 871 push(rcx); | |
| 872 push(rdx); | |
| 0 | 873 test_method_data_pointer(rcx, verify_continue); // If mdp is zero, continue |
| 874 get_method(rbx); | |
| 875 | |
| 876 // If the mdp is valid, it will point to a DataLayout header which is | |
| 877 // consistent with the bcp. The converse is highly probable also. | |
|
622
56aae7be60d4
6812678: macro assembler needs delayed binding of a few constants (for 6655638)
jrose
parents:
533
diff
changeset
|
878 load_unsigned_short(rdx, Address(rcx, in_bytes(DataLayout::bci_offset()))); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
879 addptr(rdx, Address(rbx, Method::const_offset())); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
880 lea(rdx, Address(rdx, ConstMethod::codes_offset())); |
| 304 | 881 cmpptr(rdx, rsi); |
| 0 | 882 jcc(Assembler::equal, verify_continue); |
| 883 // rbx,: method | |
| 884 // rsi: bcp | |
| 885 // rcx: mdp | |
| 886 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp), rbx, rsi, rcx); | |
| 887 bind(verify_continue); | |
| 304 | 888 pop(rdx); |
| 889 pop(rcx); | |
| 890 pop(rbx); | |
| 891 pop(rax); | |
| 0 | 892 #endif // ASSERT |
| 893 } | |
| 894 | |
| 895 | |
| 896 void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in, int constant, Register value) { | |
| 304 | 897 // %%% this seems to be used to store counter data which is surely 32bits |
| 898 // however 64bit side stores 64 bits which seems wrong | |
| 0 | 899 assert(ProfileInterpreter, "must be profiling interpreter"); |
| 900 Address data(mdp_in, constant); | |
| 304 | 901 movptr(data, value); |
| 0 | 902 } |
| 903 | |
| 904 | |
| 905 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
| 906 int constant, | |
| 907 bool decrement) { | |
| 908 // Counter address | |
| 909 Address data(mdp_in, constant); | |
| 910 | |
| 911 increment_mdp_data_at(data, decrement); | |
| 912 } | |
| 913 | |
| 914 | |
| 915 void InterpreterMacroAssembler::increment_mdp_data_at(Address data, | |
| 916 bool decrement) { | |
| 917 | |
| 918 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
| 919 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 920 | |
| 304 | 921 // %%% 64bit treats this as 64 bit which seems unlikely |
| 0 | 922 if (decrement) { |
| 923 // Decrement the register. Set condition codes. | |
| 924 addl(data, -DataLayout::counter_increment); | |
| 925 // If the decrement causes the counter to overflow, stay negative | |
| 926 Label L; | |
| 927 jcc(Assembler::negative, L); | |
| 928 addl(data, DataLayout::counter_increment); | |
| 929 bind(L); | |
| 930 } else { | |
| 931 assert(DataLayout::counter_increment == 1, | |
| 932 "flow-free idiom only works with 1"); | |
| 933 // Increment the register. Set carry flag. | |
| 934 addl(data, DataLayout::counter_increment); | |
| 935 // If the increment causes the counter to overflow, pull back by 1. | |
| 936 sbbl(data, 0); | |
| 937 } | |
| 938 } | |
| 939 | |
| 940 | |
| 941 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
| 942 Register reg, | |
| 943 int constant, | |
| 944 bool decrement) { | |
| 945 Address data(mdp_in, reg, Address::times_1, constant); | |
| 946 | |
| 947 increment_mdp_data_at(data, decrement); | |
| 948 } | |
| 949 | |
| 950 | |
| 951 void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in, int flag_byte_constant) { | |
| 952 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 953 int header_offset = in_bytes(DataLayout::header_offset()); | |
| 954 int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant); | |
| 955 // Set the flag | |
| 956 orl(Address(mdp_in, header_offset), header_bits); | |
| 957 } | |
| 958 | |
| 959 | |
| 960 | |
| 961 void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in, | |
| 962 int offset, | |
| 963 Register value, | |
| 964 Register test_value_out, | |
| 965 Label& not_equal_continue) { | |
| 966 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 967 if (test_value_out == noreg) { | |
| 304 | 968 cmpptr(value, Address(mdp_in, offset)); |
| 0 | 969 } else { |
| 970 // Put the test value into a register, so caller can use it: | |
| 304 | 971 movptr(test_value_out, Address(mdp_in, offset)); |
| 972 cmpptr(test_value_out, value); | |
| 0 | 973 } |
| 974 jcc(Assembler::notEqual, not_equal_continue); | |
| 975 } | |
| 976 | |
| 977 | |
| 978 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, int offset_of_disp) { | |
| 979 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 980 Address disp_address(mdp_in, offset_of_disp); | |
| 304 | 981 addptr(mdp_in,disp_address); |
| 982 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 983 } |
| 984 | |
| 985 | |
| 986 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp) { | |
| 987 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 988 Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp); | |
| 304 | 989 addptr(mdp_in, disp_address); |
| 990 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 991 } |
| 992 | |
| 993 | |
| 994 void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in, int constant) { | |
| 995 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 996 addptr(mdp_in, constant); |
| 997 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 998 } |
| 999 | |
| 1000 | |
| 1001 void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) { | |
| 1002 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 1003 push(return_bci); // save/restore across call_VM |
| 0 | 1004 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret), return_bci); |
| 304 | 1005 pop(return_bci); |
| 0 | 1006 } |
| 1007 | |
| 1008 | |
| 1009 void InterpreterMacroAssembler::profile_taken_branch(Register mdp, Register bumped_count) { | |
| 1010 if (ProfileInterpreter) { | |
| 1011 Label profile_continue; | |
| 1012 | |
| 1013 // If no method data exists, go to profile_continue. | |
| 1014 // Otherwise, assign to mdp | |
| 1015 test_method_data_pointer(mdp, profile_continue); | |
| 1016 | |
| 1017 // We are taking a branch. Increment the taken count. | |
| 1018 // We inline increment_mdp_data_at to return bumped_count in a register | |
| 1019 //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset())); | |
| 1020 Address data(mdp, in_bytes(JumpData::taken_offset())); | |
| 304 | 1021 |
| 1022 // %%% 64bit treats these cells as 64 bit but they seem to be 32 bit | |
| 0 | 1023 movl(bumped_count,data); |
| 1024 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
| 1025 addl(bumped_count, DataLayout::counter_increment); | |
| 1026 sbbl(bumped_count, 0); | |
| 1027 movl(data,bumped_count); // Store back out | |
| 1028 | |
| 1029 // The method data pointer needs to be updated to reflect the new target. | |
| 1030 update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset())); | |
| 1031 bind (profile_continue); | |
| 1032 } | |
| 1033 } | |
| 1034 | |
| 1035 | |
| 1036 void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) { | |
| 1037 if (ProfileInterpreter) { | |
| 1038 Label profile_continue; | |
| 1039 | |
| 1040 // If no method data exists, go to profile_continue. | |
| 1041 test_method_data_pointer(mdp, profile_continue); | |
| 1042 | |
| 1043 // We are taking a branch. Increment the not taken count. | |
| 1044 increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset())); | |
| 1045 | |
| 1046 // The method data pointer needs to be updated to correspond to the next bytecode | |
| 1047 update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size())); | |
| 1048 bind (profile_continue); | |
| 1049 } | |
| 1050 } | |
| 1051 | |
| 1052 void InterpreterMacroAssembler::profile_call(Register mdp) { | |
| 1053 if (ProfileInterpreter) { | |
| 1054 Label profile_continue; | |
| 1055 | |
| 1056 // If no method data exists, go to profile_continue. | |
| 1057 test_method_data_pointer(mdp, profile_continue); | |
| 1058 | |
| 1059 // We are making a call. Increment the count. | |
| 1060 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1061 | |
| 1062 // The method data pointer needs to be updated to reflect the new target. | |
| 1063 update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size())); | |
| 1064 bind (profile_continue); | |
| 1065 } | |
| 1066 } | |
| 1067 | |
| 1068 | |
| 1069 void InterpreterMacroAssembler::profile_final_call(Register mdp) { | |
| 1070 if (ProfileInterpreter) { | |
| 1071 Label profile_continue; | |
| 1072 | |
| 1073 // If no method data exists, go to profile_continue. | |
| 1074 test_method_data_pointer(mdp, profile_continue); | |
| 1075 | |
| 1076 // We are making a call. Increment the count. | |
| 1077 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1078 | |
| 1079 // The method data pointer needs to be updated to reflect the new target. | |
| 1080 update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size())); | |
| 1081 bind (profile_continue); | |
| 1082 } | |
| 1083 } | |
| 1084 | |
| 1085 | |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1086 void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1087 Register reg2, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1088 bool receiver_can_be_null) { |
| 0 | 1089 if (ProfileInterpreter) { |
| 1090 Label profile_continue; | |
| 1091 | |
| 1092 // If no method data exists, go to profile_continue. | |
| 1093 test_method_data_pointer(mdp, profile_continue); | |
| 1094 | |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1095 Label skip_receiver_profile; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1096 if (receiver_can_be_null) { |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1097 Label not_null; |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1098 testptr(receiver, receiver); |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1099 jccb(Assembler::notZero, not_null); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1100 // We are making a call. Increment the count for null receiver. |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1101 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1102 jmp(skip_receiver_profile); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1103 bind(not_null); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1104 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1105 |
| 0 | 1106 // Record the receiver type. |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1107 record_klass_in_profile(receiver, mdp, reg2, true); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
1108 bind(skip_receiver_profile); |
| 0 | 1109 |
| 1110 // The method data pointer needs to be updated to reflect the new target. | |
| 1111 update_mdp_by_constant(mdp, | |
| 1112 in_bytes(VirtualCallData:: | |
| 1113 virtual_call_data_size())); | |
| 1114 bind(profile_continue); | |
| 1115 } | |
| 1116 } | |
| 1117 | |
| 1118 | |
| 1119 void InterpreterMacroAssembler::record_klass_in_profile_helper( | |
| 1120 Register receiver, Register mdp, | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1121 Register reg2, int start_row, |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1122 Label& done, bool is_virtual_call) { |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1123 if (TypeProfileWidth == 0) { |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1124 if (is_virtual_call) { |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1125 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1126 } |
|
967
6918603297f7
6858208: jvm crash when specifying TypeProfileWidth=0 on jdk 6.0
poonam
parents:
826
diff
changeset
|
1127 return; |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1128 } |
|
967
6918603297f7
6858208: jvm crash when specifying TypeProfileWidth=0 on jdk 6.0
poonam
parents:
826
diff
changeset
|
1129 |
| 0 | 1130 int last_row = VirtualCallData::row_limit() - 1; |
| 1131 assert(start_row <= last_row, "must be work left to do"); | |
| 1132 // Test this row for both the receiver and for null. | |
| 1133 // Take any of three different outcomes: | |
| 1134 // 1. found receiver => increment count and goto done | |
| 1135 // 2. found null => keep looking for case 1, maybe allocate this cell | |
| 1136 // 3. found something else => keep looking for cases 1 and 2 | |
| 1137 // Case 3 is handled by a recursive call. | |
| 1138 for (int row = start_row; row <= last_row; row++) { | |
| 1139 Label next_test; | |
| 1140 bool test_for_null_also = (row == start_row); | |
| 1141 | |
| 1142 // See if the receiver is receiver[n]. | |
| 1143 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row)); | |
| 1144 test_mdp_data_at(mdp, recvr_offset, receiver, | |
| 1145 (test_for_null_also ? reg2 : noreg), | |
| 1146 next_test); | |
| 1147 // (Reg2 now contains the receiver from the CallData.) | |
| 1148 | |
| 1149 // The receiver is receiver[n]. Increment count[n]. | |
| 1150 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row)); | |
| 1151 increment_mdp_data_at(mdp, count_offset); | |
| 1152 jmp(done); | |
| 1153 bind(next_test); | |
| 1154 | |
| 1155 if (row == start_row) { | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1156 Label found_null; |
| 0 | 1157 // Failed the equality check on receiver[n]... Test for null. |
| 304 | 1158 testptr(reg2, reg2); |
| 0 | 1159 if (start_row == last_row) { |
| 1160 // The only thing left to do is handle the null case. | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1161 if (is_virtual_call) { |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1162 jccb(Assembler::zero, found_null); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1163 // Receiver did not match any saved receiver and there is no empty row for it. |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1206
diff
changeset
|
1164 // Increment total counter to indicate polymorphic case. |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1165 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1166 jmp(done); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1167 bind(found_null); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1168 } else { |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1169 jcc(Assembler::notZero, done); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1170 } |
| 0 | 1171 break; |
| 1172 } | |
| 1173 // Since null is rare, make it be the branch-taken case. | |
| 1174 jcc(Assembler::zero, found_null); | |
| 1175 | |
| 1176 // Put all the "Case 3" tests here. | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1177 record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done, is_virtual_call); |
| 0 | 1178 |
| 1179 // Found a null. Keep searching for a matching receiver, | |
| 1180 // but remember that this is an empty (unused) slot. | |
| 1181 bind(found_null); | |
| 1182 } | |
| 1183 } | |
| 1184 | |
| 1185 // In the fall-through case, we found no matching receiver, but we | |
| 1186 // observed the receiver[start_row] is NULL. | |
| 1187 | |
| 1188 // Fill in the receiver field and increment the count. | |
| 1189 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row)); | |
| 1190 set_mdp_data_at(mdp, recvr_offset, receiver); | |
| 1191 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row)); | |
| 3960 | 1192 movptr(reg2, (intptr_t)DataLayout::counter_increment); |
| 0 | 1193 set_mdp_data_at(mdp, count_offset, reg2); |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1194 if (start_row > 0) { |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1195 jmp(done); |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1196 } |
| 0 | 1197 } |
| 1198 | |
| 1199 void InterpreterMacroAssembler::record_klass_in_profile(Register receiver, | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1200 Register mdp, Register reg2, |
|
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1201 bool is_virtual_call) { |
| 0 | 1202 assert(ProfileInterpreter, "must be profiling"); |
| 1203 Label done; | |
| 1204 | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1205 record_klass_in_profile_helper(receiver, mdp, reg2, 0, done, is_virtual_call); |
| 0 | 1206 |
| 1207 bind (done); | |
| 1208 } | |
| 1209 | |
| 1210 void InterpreterMacroAssembler::profile_ret(Register return_bci, Register mdp) { | |
| 1211 if (ProfileInterpreter) { | |
| 1212 Label profile_continue; | |
| 1213 uint row; | |
| 1214 | |
| 1215 // If no method data exists, go to profile_continue. | |
| 1216 test_method_data_pointer(mdp, profile_continue); | |
| 1217 | |
| 1218 // Update the total ret count. | |
| 1219 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1220 | |
| 1221 for (row = 0; row < RetData::row_limit(); row++) { | |
| 1222 Label next_test; | |
| 1223 | |
| 1224 // See if return_bci is equal to bci[n]: | |
| 1225 test_mdp_data_at(mdp, in_bytes(RetData::bci_offset(row)), return_bci, | |
| 1226 noreg, next_test); | |
| 1227 | |
| 1228 // return_bci is equal to bci[n]. Increment the count. | |
| 1229 increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row))); | |
| 1230 | |
| 1231 // The method data pointer needs to be updated to reflect the new target. | |
| 1232 update_mdp_by_offset(mdp, in_bytes(RetData::bci_displacement_offset(row))); | |
| 1233 jmp(profile_continue); | |
| 1234 bind(next_test); | |
| 1235 } | |
| 1236 | |
| 1237 update_mdp_for_ret(return_bci); | |
| 1238 | |
| 1239 bind (profile_continue); | |
| 1240 } | |
| 1241 } | |
| 1242 | |
| 1243 | |
| 1244 void InterpreterMacroAssembler::profile_null_seen(Register mdp) { | |
| 1245 if (ProfileInterpreter) { | |
| 1246 Label profile_continue; | |
| 1247 | |
| 1248 // If no method data exists, go to profile_continue. | |
| 1249 test_method_data_pointer(mdp, profile_continue); | |
| 1250 | |
|
826
3f06f139ef53
6851908: interpreter null check profiling broken causing extra compilation invalidation
never
parents:
726
diff
changeset
|
1251 set_mdp_flag_at(mdp, BitData::null_seen_byte_constant()); |
|
3f06f139ef53
6851908: interpreter null check profiling broken causing extra compilation invalidation
never
parents:
726
diff
changeset
|
1252 |
| 0 | 1253 // The method data pointer needs to be updated. |
| 1254 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
| 1255 if (TypeProfileCasts) { | |
| 1256 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1257 } | |
| 1258 update_mdp_by_constant(mdp, mdp_delta); | |
| 1259 | |
| 1260 bind (profile_continue); | |
| 1261 } | |
| 1262 } | |
| 1263 | |
| 1264 | |
| 1265 void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) { | |
| 1266 if (ProfileInterpreter && TypeProfileCasts) { | |
| 1267 Label profile_continue; | |
| 1268 | |
| 1269 // If no method data exists, go to profile_continue. | |
| 1270 test_method_data_pointer(mdp, profile_continue); | |
| 1271 | |
| 1272 int count_offset = in_bytes(CounterData::count_offset()); | |
| 1273 // Back up the address, since we have already bumped the mdp. | |
| 1274 count_offset -= in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1275 | |
| 1276 // *Decrement* the counter. We expect to see zero or small negatives. | |
| 1277 increment_mdp_data_at(mdp, count_offset, true); | |
| 1278 | |
| 1279 bind (profile_continue); | |
| 1280 } | |
| 1281 } | |
| 1282 | |
| 1283 | |
| 1284 void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2) | |
| 1285 { | |
| 1286 if (ProfileInterpreter) { | |
| 1287 Label profile_continue; | |
| 1288 | |
| 1289 // If no method data exists, go to profile_continue. | |
| 1290 test_method_data_pointer(mdp, profile_continue); | |
| 1291 | |
| 1292 // The method data pointer needs to be updated. | |
| 1293 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
| 1294 if (TypeProfileCasts) { | |
| 1295 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1296 | |
| 1297 // Record the object type. | |
|
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1108
diff
changeset
|
1298 record_klass_in_profile(klass, mdp, reg2, false); |
| 0 | 1299 assert(reg2 == rdi, "we know how to fix this blown reg"); |
| 1300 restore_locals(); // Restore EDI | |
| 1301 } | |
| 1302 update_mdp_by_constant(mdp, mdp_delta); | |
| 1303 | |
| 1304 bind(profile_continue); | |
| 1305 } | |
| 1306 } | |
| 1307 | |
| 1308 | |
| 1309 void InterpreterMacroAssembler::profile_switch_default(Register mdp) { | |
| 1310 if (ProfileInterpreter) { | |
| 1311 Label profile_continue; | |
| 1312 | |
| 1313 // If no method data exists, go to profile_continue. | |
| 1314 test_method_data_pointer(mdp, profile_continue); | |
| 1315 | |
| 1316 // Update the default case count | |
| 1317 increment_mdp_data_at(mdp, in_bytes(MultiBranchData::default_count_offset())); | |
| 1318 | |
| 1319 // The method data pointer needs to be updated. | |
| 1320 update_mdp_by_offset(mdp, in_bytes(MultiBranchData::default_displacement_offset())); | |
| 1321 | |
| 1322 bind (profile_continue); | |
| 1323 } | |
| 1324 } | |
| 1325 | |
| 1326 | |
| 1327 void InterpreterMacroAssembler::profile_switch_case(Register index, Register mdp, Register reg2) { | |
| 1328 if (ProfileInterpreter) { | |
| 1329 Label profile_continue; | |
| 1330 | |
| 1331 // If no method data exists, go to profile_continue. | |
| 1332 test_method_data_pointer(mdp, profile_continue); | |
| 1333 | |
| 1334 // Build the base (index * per_case_size_in_bytes()) + case_array_offset_in_bytes() | |
| 3960 | 1335 movptr(reg2, (intptr_t)in_bytes(MultiBranchData::per_case_size())); |
| 304 | 1336 // index is positive and so should have correct value if this code were |
| 1337 // used on 64bits | |
| 1338 imulptr(index, reg2); | |
| 1339 addptr(index, in_bytes(MultiBranchData::case_array_offset())); | |
| 0 | 1340 |
| 1341 // Update the case count | |
| 1342 increment_mdp_data_at(mdp, index, in_bytes(MultiBranchData::relative_count_offset())); | |
| 1343 | |
| 1344 // The method data pointer needs to be updated. | |
| 1345 update_mdp_by_offset(mdp, index, in_bytes(MultiBranchData::relative_displacement_offset())); | |
| 1346 | |
| 1347 bind (profile_continue); | |
| 1348 } | |
| 1349 } | |
| 1350 | |
| 1351 #endif // !CC_INTERP | |
| 1352 | |
| 1353 | |
| 1354 | |
| 1355 void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) { | |
| 1356 if (state == atos) MacroAssembler::verify_oop(reg); | |
| 1357 } | |
| 1358 | |
| 1359 | |
| 1360 #ifndef CC_INTERP | |
| 1361 void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) { | |
| 1362 if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth); | |
| 1363 } | |
| 1364 | |
| 1365 #endif /* CC_INTERP */ | |
| 1366 | |
| 1367 | |
| 1368 void InterpreterMacroAssembler::notify_method_entry() { | |
| 1369 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
| 1370 // track stack depth. If it is possible to enter interp_only_mode we add | |
| 1371 // the code to check if the event should be sent. | |
| 1372 if (JvmtiExport::can_post_interpreter_events()) { | |
| 1373 Label L; | |
| 1374 get_thread(rcx); | |
| 1375 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
| 1376 testl(rcx,rcx); | |
| 1377 jcc(Assembler::zero, L); | |
| 1378 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry)); | |
| 1379 bind(L); | |
| 1380 } | |
| 1381 | |
| 1382 { | |
| 1383 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
| 1384 get_thread(rcx); | |
| 1385 get_method(rbx); | |
| 1386 call_VM_leaf( | |
| 1387 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), rcx, rbx); | |
| 1388 } | |
|
610
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1389 |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1390 // RedefineClasses() tracing support for obsolete method entry |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1391 if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) { |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1392 get_thread(rcx); |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1393 get_method(rbx); |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1394 call_VM_leaf( |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1395 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry), |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1396 rcx, rbx); |
|
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
337
diff
changeset
|
1397 } |
| 0 | 1398 } |
| 1399 | |
| 1400 | |
| 1401 void InterpreterMacroAssembler::notify_method_exit( | |
| 1402 TosState state, NotifyMethodExitMode mode) { | |
| 1403 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
| 1404 // track stack depth. If it is possible to enter interp_only_mode we add | |
| 1405 // the code to check if the event should be sent. | |
| 1406 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) { | |
| 1407 Label L; | |
| 1408 // Note: frame::interpreter_frame_result has a dependency on how the | |
| 1409 // method result is saved across the call to post_method_exit. If this | |
| 1410 // is changed then the interpreter_frame_result implementation will | |
| 1411 // need to be updated too. | |
| 1412 | |
| 1413 // For c++ interpreter the result is always stored at a known location in the frame | |
| 1414 // template interpreter will leave it on the top of the stack. | |
| 1415 NOT_CC_INTERP(push(state);) | |
| 1416 get_thread(rcx); | |
| 1417 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
| 1418 testl(rcx,rcx); | |
| 1419 jcc(Assembler::zero, L); | |
| 1420 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit)); | |
| 1421 bind(L); | |
| 1422 NOT_CC_INTERP(pop(state);) | |
| 1423 } | |
| 1424 | |
| 1425 { | |
| 1426 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
| 304 | 1427 NOT_CC_INTERP(push(state)); |
| 0 | 1428 get_thread(rbx); |
| 1429 get_method(rcx); | |
| 1430 call_VM_leaf( | |
| 1431 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), | |
| 1432 rbx, rcx); | |
| 304 | 1433 NOT_CC_INTERP(pop(state)); |
| 0 | 1434 } |
| 1435 } | |
| 1783 | 1436 |
| 1437 // Jump if ((*counter_addr += increment) & mask) satisfies the condition. | |
| 1438 void InterpreterMacroAssembler::increment_mask_and_jump(Address counter_addr, | |
| 1439 int increment, int mask, | |
| 1440 Register scratch, bool preloaded, | |
| 1441 Condition cond, Label* where) { | |
| 1442 if (!preloaded) { | |
| 1443 movl(scratch, counter_addr); | |
| 1444 } | |
| 1445 incrementl(scratch, increment); | |
| 1446 movl(counter_addr, scratch); | |
| 1447 andl(scratch, mask); | |
| 1448 jcc(cond, *where); | |
| 1449 } |