Mercurial > hg > truffle
annotate src/cpu/x86/vm/interp_masm_x86_32.cpp @ 14676:d3f14809b051
8036146: make CPP interpreter build again
Summary: fix build of CPP interpreter on x86 and sparc
Reviewed-by: kvn
| author | roland |
|---|---|
| date | Wed, 05 Mar 2014 15:14:25 +0100 |
| parents | ea79ab313e98 |
| children | 92aa6797d639 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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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" | |
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31 #include "oops/methodData.hpp" |
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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" | |
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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); |
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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 |
| 154 case ctos: // fall through | |
| 155 case stos: // fall through | |
| 156 case itos: movl(rax, val_addr); break; | |
| 157 case ftos: fld_s(val_addr); break; | |
| 158 case dtos: fld_d(val_addr); break; | |
| 159 case vtos: /* nothing to do */ break; | |
| 160 default : ShouldNotReachHere(); | |
| 161 } | |
| 162 // Clean up tos value in the thread object | |
| 304 | 163 movl(tos_addr, (int32_t) ilgl); |
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164 movptr(val_addr, NULL_WORD); |
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165 NOT_LP64(movptr(val_addr1, NULL_WORD)); |
| 0 | 166 } |
| 167 | |
| 168 | |
| 169 void InterpreterMacroAssembler::check_and_handle_earlyret(Register java_thread) { | |
| 170 if (JvmtiExport::can_force_early_return()) { | |
| 171 Label L; | |
| 172 Register tmp = java_thread; | |
| 304 | 173 movptr(tmp, Address(tmp, JavaThread::jvmti_thread_state_offset())); |
| 174 testptr(tmp, tmp); | |
| 0 | 175 jcc(Assembler::zero, L); // if (thread->jvmti_thread_state() == NULL) exit; |
| 176 | |
| 177 // Initiate earlyret handling only if it is not already being processed. | |
| 178 // If the flag has the earlyret_processing bit set, it means that this code | |
| 179 // is called *during* earlyret handling - we don't want to reenter. | |
| 180 movl(tmp, Address(tmp, JvmtiThreadState::earlyret_state_offset())); | |
| 181 cmpl(tmp, JvmtiThreadState::earlyret_pending); | |
| 182 jcc(Assembler::notEqual, L); | |
| 183 | |
| 184 // Call Interpreter::remove_activation_early_entry() to get the address of the | |
| 185 // same-named entrypoint in the generated interpreter code. | |
| 186 get_thread(java_thread); | |
| 304 | 187 movptr(tmp, Address(java_thread, JavaThread::jvmti_thread_state_offset())); |
| 0 | 188 pushl(Address(tmp, JvmtiThreadState::earlyret_tos_offset())); |
| 189 call_VM_leaf(CAST_FROM_FN_PTR(address, Interpreter::remove_activation_early_entry), 1); | |
| 190 jmp(rax); | |
| 191 bind(L); | |
| 192 get_thread(java_thread); | |
| 193 } | |
| 194 } | |
| 195 | |
| 196 | |
| 197 void InterpreterMacroAssembler::get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset) { | |
| 198 assert(bcp_offset >= 0, "bcp is still pointing to start of bytecode"); | |
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199 load_unsigned_short(reg, Address(rsi, bcp_offset)); |
| 304 | 200 bswapl(reg); |
| 0 | 201 shrl(reg, 16); |
| 202 } | |
| 203 | |
| 204 | |
| 1565 | 205 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register reg, int bcp_offset, size_t index_size) { |
| 0 | 206 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
| 1565 | 207 if (index_size == sizeof(u2)) { |
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208 load_unsigned_short(reg, Address(rsi, bcp_offset)); |
| 1565 | 209 } else if (index_size == sizeof(u4)) { |
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210 assert(EnableInvokeDynamic, "giant index used only for JSR 292"); |
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211 movl(reg, Address(rsi, bcp_offset)); |
| 1108 | 212 // Check if the secondary index definition is still ~x, otherwise |
| 213 // we have to change the following assembler code to calculate the | |
| 214 // plain index. | |
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215 assert(ConstantPool::decode_invokedynamic_index(~123) == 123, "else change next line"); |
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216 notl(reg); // convert to plain index |
| 1565 | 217 } else if (index_size == sizeof(u1)) { |
| 218 load_unsigned_byte(reg, Address(rsi, bcp_offset)); | |
| 219 } else { | |
| 220 ShouldNotReachHere(); | |
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221 } |
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222 } |
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223 |
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224 |
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225 void InterpreterMacroAssembler::get_cache_and_index_at_bcp(Register cache, Register index, |
| 1565 | 226 int bcp_offset, size_t index_size) { |
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227 assert_different_registers(cache, index); |
| 1565 | 228 get_cache_index_at_bcp(index, bcp_offset, index_size); |
| 304 | 229 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
| 0 | 230 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
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231 assert(exact_log2(in_words(ConstantPoolCacheEntry::size())) == 2, "else change next line"); |
| 304 | 232 shlptr(index, 2); // convert from field index to ConstantPoolCacheEntry index |
| 0 | 233 } |
| 234 | |
| 235 | |
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236 void InterpreterMacroAssembler::get_cache_and_index_and_bytecode_at_bcp(Register cache, |
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237 Register index, |
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238 Register bytecode, |
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239 int byte_no, |
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240 int bcp_offset, |
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241 size_t index_size) { |
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242 get_cache_and_index_at_bcp(cache, index, bcp_offset, index_size); |
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243 movptr(bytecode, Address(cache, index, Address::times_ptr, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset())); |
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244 const int shift_count = (1 + byte_no) * BitsPerByte; |
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245 assert((byte_no == TemplateTable::f1_byte && shift_count == ConstantPoolCacheEntry::bytecode_1_shift) || |
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246 (byte_no == TemplateTable::f2_byte && shift_count == ConstantPoolCacheEntry::bytecode_2_shift), |
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247 "correct shift count"); |
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248 shrptr(bytecode, shift_count); |
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249 assert(ConstantPoolCacheEntry::bytecode_1_mask == ConstantPoolCacheEntry::bytecode_2_mask, "common mask"); |
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250 andptr(bytecode, ConstantPoolCacheEntry::bytecode_1_mask); |
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251 } |
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252 |
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253 |
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254 void InterpreterMacroAssembler::get_cache_entry_pointer_at_bcp(Register cache, Register tmp, |
| 1565 | 255 int bcp_offset, size_t index_size) { |
| 0 | 256 assert(cache != tmp, "must use different register"); |
| 1565 | 257 get_cache_index_at_bcp(tmp, bcp_offset, index_size); |
| 0 | 258 assert(sizeof(ConstantPoolCacheEntry) == 4*wordSize, "adjust code below"); |
| 259 // convert from field index to ConstantPoolCacheEntry index | |
| 260 // and from word offset to byte offset | |
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261 assert(exact_log2(in_bytes(ConstantPoolCacheEntry::size_in_bytes())) == 2 + LogBytesPerWord, "else change next line"); |
| 0 | 262 shll(tmp, 2 + LogBytesPerWord); |
| 304 | 263 movptr(cache, Address(rbp, frame::interpreter_frame_cache_offset * wordSize)); |
| 0 | 264 // skip past the header |
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265 addptr(cache, in_bytes(ConstantPoolCache::base_offset())); |
| 304 | 266 addptr(cache, tmp); // construct pointer to cache entry |
| 0 | 267 } |
| 268 | |
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269 // Load object from cpool->resolved_references(index) |
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270 void InterpreterMacroAssembler::load_resolved_reference_at_index( |
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271 Register result, Register index) { |
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272 assert_different_registers(result, index); |
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273 // convert from field index to resolved_references() index and from |
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274 // word index to byte offset. Since this is a java object, it can be compressed |
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275 Register tmp = index; // reuse |
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276 shll(tmp, LogBytesPerHeapOop); |
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277 |
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278 get_constant_pool(result); |
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279 // load pointer for resolved_references[] objArray |
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280 movptr(result, Address(result, ConstantPool::resolved_references_offset_in_bytes())); |
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281 // JNIHandles::resolve(obj); |
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282 movptr(result, Address(result, 0)); |
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283 // Add in the index |
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284 addptr(result, tmp); |
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285 load_heap_oop(result, Address(result, arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
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286 } |
| 0 | 287 |
| 288 // Generate a subtype check: branch to ok_is_subtype if sub_klass is | |
| 289 // a subtype of super_klass. EAX holds the super_klass. Blows ECX. | |
| 290 // Resets EDI to locals. Register sub_klass cannot be any of the above. | |
| 291 void InterpreterMacroAssembler::gen_subtype_check( Register Rsub_klass, Label &ok_is_subtype ) { | |
| 292 assert( Rsub_klass != rax, "rax, holds superklass" ); | |
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293 assert( Rsub_klass != rcx, "used as a temp" ); |
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294 assert( Rsub_klass != rdi, "used as a temp, restored from locals" ); |
| 0 | 295 |
| 296 // Profile the not-null value's klass. | |
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297 profile_typecheck(rcx, Rsub_klass, rdi); // blows rcx, reloads rdi |
| 0 | 298 |
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299 // Do the check. |
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300 check_klass_subtype(Rsub_klass, rax, rcx, ok_is_subtype); // blows rcx |
| 0 | 301 |
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302 // Profile the failure of the check. |
| 0 | 303 profile_typecheck_failed(rcx); // blows rcx |
| 304 } | |
| 305 | |
| 306 void InterpreterMacroAssembler::f2ieee() { | |
| 307 if (IEEEPrecision) { | |
| 308 fstp_s(Address(rsp, 0)); | |
| 309 fld_s(Address(rsp, 0)); | |
| 310 } | |
| 311 } | |
| 312 | |
| 313 | |
| 314 void InterpreterMacroAssembler::d2ieee() { | |
| 315 if (IEEEPrecision) { | |
| 316 fstp_d(Address(rsp, 0)); | |
| 317 fld_d(Address(rsp, 0)); | |
| 318 } | |
| 319 } | |
| 320 | |
| 321 // Java Expression Stack | |
| 322 | |
| 323 void InterpreterMacroAssembler::pop_ptr(Register r) { | |
| 304 | 324 pop(r); |
| 0 | 325 } |
| 326 | |
| 327 void InterpreterMacroAssembler::pop_i(Register r) { | |
| 304 | 328 pop(r); |
| 0 | 329 } |
| 330 | |
| 331 void InterpreterMacroAssembler::pop_l(Register lo, Register hi) { | |
| 304 | 332 pop(lo); |
| 333 pop(hi); | |
| 0 | 334 } |
| 335 | |
| 336 void InterpreterMacroAssembler::pop_f() { | |
| 337 fld_s(Address(rsp, 0)); | |
| 304 | 338 addptr(rsp, 1 * wordSize); |
| 0 | 339 } |
| 340 | |
| 341 void InterpreterMacroAssembler::pop_d() { | |
| 342 fld_d(Address(rsp, 0)); | |
| 304 | 343 addptr(rsp, 2 * wordSize); |
| 0 | 344 } |
| 345 | |
| 346 | |
| 347 void InterpreterMacroAssembler::pop(TosState state) { | |
| 348 switch (state) { | |
| 349 case atos: pop_ptr(rax); break; | |
| 350 case btos: // fall through | |
| 351 case ctos: // fall through | |
| 352 case stos: // fall through | |
| 353 case itos: pop_i(rax); break; | |
| 354 case ltos: pop_l(rax, rdx); break; | |
| 355 case ftos: pop_f(); break; | |
| 356 case dtos: pop_d(); break; | |
| 357 case vtos: /* nothing to do */ break; | |
| 358 default : ShouldNotReachHere(); | |
| 359 } | |
| 360 verify_oop(rax, state); | |
| 361 } | |
| 362 | |
| 363 void InterpreterMacroAssembler::push_ptr(Register r) { | |
| 304 | 364 push(r); |
| 0 | 365 } |
| 366 | |
| 367 void InterpreterMacroAssembler::push_i(Register r) { | |
| 304 | 368 push(r); |
| 0 | 369 } |
| 370 | |
| 371 void InterpreterMacroAssembler::push_l(Register lo, Register hi) { | |
| 304 | 372 push(hi); |
| 373 push(lo); | |
| 0 | 374 } |
| 375 | |
| 376 void InterpreterMacroAssembler::push_f() { | |
| 377 // Do not schedule for no AGI! Never write beyond rsp! | |
| 304 | 378 subptr(rsp, 1 * wordSize); |
| 0 | 379 fstp_s(Address(rsp, 0)); |
| 380 } | |
| 381 | |
| 382 void InterpreterMacroAssembler::push_d(Register r) { | |
| 1506 | 383 // Do not schedule for no AGI! Never write beyond rsp! |
| 384 subptr(rsp, 2 * wordSize); | |
| 385 fstp_d(Address(rsp, 0)); | |
| 0 | 386 } |
| 387 | |
| 388 | |
| 389 void InterpreterMacroAssembler::push(TosState state) { | |
| 390 verify_oop(rax, state); | |
| 391 switch (state) { | |
| 392 case atos: push_ptr(rax); break; | |
| 393 case btos: // fall through | |
| 394 case ctos: // fall through | |
| 395 case stos: // fall through | |
| 396 case itos: push_i(rax); break; | |
| 397 case ltos: push_l(rax, rdx); break; | |
| 398 case ftos: push_f(); break; | |
| 399 case dtos: push_d(rax); break; | |
| 400 case vtos: /* nothing to do */ break; | |
| 401 default : ShouldNotReachHere(); | |
| 402 } | |
| 403 } | |
| 404 | |
| 405 | |
| 1506 | 406 // Helpers for swap and dup |
| 407 void InterpreterMacroAssembler::load_ptr(int n, Register val) { | |
| 304 | 408 movptr(val, Address(rsp, Interpreter::expr_offset_in_bytes(n))); |
| 0 | 409 } |
| 410 | |
| 1506 | 411 void InterpreterMacroAssembler::store_ptr(int n, Register val) { |
| 412 movptr(Address(rsp, Interpreter::expr_offset_in_bytes(n)), val); | |
| 0 | 413 } |
| 414 | |
| 710 | 415 void InterpreterMacroAssembler::prepare_to_jump_from_interpreted() { |
| 0 | 416 // set sender sp |
| 304 | 417 lea(rsi, Address(rsp, wordSize)); |
| 0 | 418 // record last_sp |
| 304 | 419 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), rsi); |
| 710 | 420 } |
| 421 | |
| 422 | |
| 423 // Jump to from_interpreted entry of a call unless single stepping is possible | |
| 424 // in this thread in which case we must call the i2i entry | |
| 425 void InterpreterMacroAssembler::jump_from_interpreted(Register method, Register temp) { | |
| 426 prepare_to_jump_from_interpreted(); | |
| 0 | 427 |
| 428 if (JvmtiExport::can_post_interpreter_events()) { | |
| 429 Label run_compiled_code; | |
| 430 // JVMTI events, such as single-stepping, are implemented partly by avoiding running | |
| 431 // compiled code in threads for which the event is enabled. Check here for | |
| 432 // interp_only_mode if these events CAN be enabled. | |
| 433 get_thread(temp); | |
| 434 // interp_only is an int, on little endian it is sufficient to test the byte only | |
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435 // Is a cmpl faster? |
| 0 | 436 cmpb(Address(temp, JavaThread::interp_only_mode_offset()), 0); |
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437 jccb(Assembler::zero, run_compiled_code); |
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438 jmp(Address(method, Method::interpreter_entry_offset())); |
| 0 | 439 bind(run_compiled_code); |
| 440 } | |
| 441 | |
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442 jmp(Address(method, Method::from_interpreted_offset())); |
| 0 | 443 |
| 444 } | |
| 445 | |
| 446 | |
| 447 // The following two routines provide a hook so that an implementation | |
| 448 // can schedule the dispatch in two parts. Intel does not do this. | |
| 449 void InterpreterMacroAssembler::dispatch_prolog(TosState state, int step) { | |
| 450 // Nothing Intel-specific to be done here. | |
| 451 } | |
| 452 | |
| 453 void InterpreterMacroAssembler::dispatch_epilog(TosState state, int step) { | |
| 454 dispatch_next(state, step); | |
| 455 } | |
| 456 | |
| 457 void InterpreterMacroAssembler::dispatch_base(TosState state, address* table, | |
| 458 bool verifyoop) { | |
| 459 verify_FPU(1, state); | |
| 460 if (VerifyActivationFrameSize) { | |
| 461 Label L; | |
| 304 | 462 mov(rcx, rbp); |
| 463 subptr(rcx, rsp); | |
| 0 | 464 int min_frame_size = (frame::link_offset - frame::interpreter_frame_initial_sp_offset) * wordSize; |
| 304 | 465 cmpptr(rcx, min_frame_size); |
| 0 | 466 jcc(Assembler::greaterEqual, L); |
| 467 stop("broken stack frame"); | |
| 468 bind(L); | |
| 469 } | |
| 470 if (verifyoop) verify_oop(rax, state); | |
| 304 | 471 Address index(noreg, rbx, Address::times_ptr); |
| 0 | 472 ExternalAddress tbl((address)table); |
| 473 ArrayAddress dispatch(tbl, index); | |
| 474 jump(dispatch); | |
| 475 } | |
| 476 | |
| 477 | |
| 478 void InterpreterMacroAssembler::dispatch_only(TosState state) { | |
| 479 dispatch_base(state, Interpreter::dispatch_table(state)); | |
| 480 } | |
| 481 | |
| 482 | |
| 483 void InterpreterMacroAssembler::dispatch_only_normal(TosState state) { | |
| 484 dispatch_base(state, Interpreter::normal_table(state)); | |
| 485 } | |
| 486 | |
| 487 void InterpreterMacroAssembler::dispatch_only_noverify(TosState state) { | |
| 488 dispatch_base(state, Interpreter::normal_table(state), false); | |
| 489 } | |
| 490 | |
| 491 | |
| 492 void InterpreterMacroAssembler::dispatch_next(TosState state, int step) { | |
| 493 // load next bytecode (load before advancing rsi to prevent AGI) | |
| 494 load_unsigned_byte(rbx, Address(rsi, step)); | |
| 495 // advance rsi | |
| 496 increment(rsi, step); | |
| 497 dispatch_base(state, Interpreter::dispatch_table(state)); | |
| 498 } | |
| 499 | |
| 500 | |
| 501 void InterpreterMacroAssembler::dispatch_via(TosState state, address* table) { | |
| 502 // load current bytecode | |
| 503 load_unsigned_byte(rbx, Address(rsi, 0)); | |
| 504 dispatch_base(state, table); | |
| 505 } | |
| 506 | |
| 507 // remove activation | |
| 508 // | |
| 509 // Unlock the receiver if this is a synchronized method. | |
| 510 // Unlock any Java monitors from syncronized blocks. | |
| 511 // Remove the activation from the stack. | |
| 512 // | |
| 513 // If there are locked Java monitors | |
| 514 // If throw_monitor_exception | |
| 515 // throws IllegalMonitorStateException | |
| 516 // Else if install_monitor_exception | |
| 517 // installs IllegalMonitorStateException | |
| 518 // Else | |
| 519 // no error processing | |
| 520 void InterpreterMacroAssembler::remove_activation(TosState state, Register ret_addr, | |
| 521 bool throw_monitor_exception, | |
| 522 bool install_monitor_exception, | |
| 523 bool notify_jvmdi) { | |
| 524 // Note: Registers rax, rdx and FPU ST(0) may be in use for the result | |
| 525 // check if synchronized method | |
| 526 Label unlocked, unlock, no_unlock; | |
| 527 | |
| 528 get_thread(rcx); | |
| 529 const Address do_not_unlock_if_synchronized(rcx, | |
| 530 in_bytes(JavaThread::do_not_unlock_if_synchronized_offset())); | |
| 531 | |
| 532 movbool(rbx, do_not_unlock_if_synchronized); | |
| 304 | 533 mov(rdi,rbx); |
| 0 | 534 movbool(do_not_unlock_if_synchronized, false); // reset the flag |
| 535 | |
| 304 | 536 movptr(rbx, Address(rbp, frame::interpreter_frame_method_offset * wordSize)); // get method access flags |
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537 movl(rcx, Address(rbx, Method::access_flags_offset())); |
| 0 | 538 |
| 539 testl(rcx, JVM_ACC_SYNCHRONIZED); | |
| 540 jcc(Assembler::zero, unlocked); | |
| 541 | |
| 542 // Don't unlock anything if the _do_not_unlock_if_synchronized flag | |
| 543 // is set. | |
| 304 | 544 mov(rcx,rdi); |
| 0 | 545 testbool(rcx); |
| 546 jcc(Assembler::notZero, no_unlock); | |
| 547 | |
| 548 // unlock monitor | |
| 549 push(state); // save result | |
| 550 | |
| 551 // BasicObjectLock will be first in list, since this is a synchronized method. However, need | |
| 552 // to check that the object has not been unlocked by an explicit monitorexit bytecode. | |
| 553 const Address monitor(rbp, frame::interpreter_frame_initial_sp_offset * wordSize - (int)sizeof(BasicObjectLock)); | |
| 304 | 554 lea (rdx, monitor); // address of first monitor |
| 0 | 555 |
| 304 | 556 movptr (rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); |
| 557 testptr(rax, rax); | |
| 558 jcc (Assembler::notZero, unlock); | |
| 0 | 559 |
| 560 pop(state); | |
| 561 if (throw_monitor_exception) { | |
| 562 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 563 | |
| 564 // Entry already unlocked, need to throw exception | |
| 565 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 566 should_not_reach_here(); | |
| 567 } else { | |
| 568 // Monitor already unlocked during a stack unroll. | |
| 569 // If requested, install an illegal_monitor_state_exception. | |
| 570 // Continue with stack unrolling. | |
| 571 if (install_monitor_exception) { | |
| 572 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 573 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
| 574 } | |
| 575 jmp(unlocked); | |
| 576 } | |
| 577 | |
| 578 bind(unlock); | |
| 579 unlock_object(rdx); | |
| 580 pop(state); | |
| 581 | |
| 582 // Check that for block-structured locking (i.e., that all locked objects has been unlocked) | |
| 583 bind(unlocked); | |
| 584 | |
| 585 // rax, rdx: Might contain return value | |
| 586 | |
| 587 // Check that all monitors are unlocked | |
| 588 { | |
| 589 Label loop, exception, entry, restart; | |
| 590 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 591 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 592 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 593 | |
| 594 bind(restart); | |
| 304 | 595 movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
| 596 lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | |
| 0 | 597 jmp(entry); |
| 598 | |
| 599 // Entry already locked, need to throw exception | |
| 600 bind(exception); | |
| 601 | |
| 602 if (throw_monitor_exception) { | |
| 603 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 604 | |
| 605 // Throw exception | |
| 606 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 607 should_not_reach_here(); | |
| 608 } else { | |
| 609 // Stack unrolling. Unlock object and install illegal_monitor_exception | |
| 610 // Unlock does not block, so don't have to worry about the frame | |
| 611 | |
| 612 push(state); | |
| 304 | 613 mov(rdx, rcx); |
| 0 | 614 unlock_object(rdx); |
| 615 pop(state); | |
| 616 | |
| 617 if (install_monitor_exception) { | |
| 618 empty_FPU_stack(); // remove possible return value from FPU-stack, otherwise stack could overflow | |
| 619 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::new_illegal_monitor_state_exception)); | |
| 620 } | |
| 621 | |
| 622 jmp(restart); | |
| 623 } | |
| 624 | |
| 625 bind(loop); | |
| 304 | 626 cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
| 0 | 627 jcc(Assembler::notEqual, exception); |
| 628 | |
| 304 | 629 addptr(rcx, entry_size); // otherwise advance to next entry |
| 0 | 630 bind(entry); |
| 304 | 631 cmpptr(rcx, rbx); // check if bottom reached |
| 0 | 632 jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
| 633 } | |
| 634 | |
| 635 bind(no_unlock); | |
| 636 | |
| 637 // jvmti support | |
| 638 if (notify_jvmdi) { | |
| 639 notify_method_exit(state, NotifyJVMTI); // preserve TOSCA | |
| 640 } else { | |
| 641 notify_method_exit(state, SkipNotifyJVMTI); // preserve TOSCA | |
| 642 } | |
| 643 | |
| 644 // remove activation | |
| 304 | 645 movptr(rbx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 646 leave(); // remove frame anchor |
| 304 | 647 pop(ret_addr); // get return address |
| 648 mov(rsp, rbx); // set sp to sender sp | |
| 0 | 649 if (UseSSE) { |
| 650 // float and double are returned in xmm register in SSE-mode | |
| 651 if (state == ftos && UseSSE >= 1) { | |
| 304 | 652 subptr(rsp, wordSize); |
| 0 | 653 fstp_s(Address(rsp, 0)); |
| 654 movflt(xmm0, Address(rsp, 0)); | |
| 304 | 655 addptr(rsp, wordSize); |
| 0 | 656 } else if (state == dtos && UseSSE >= 2) { |
| 304 | 657 subptr(rsp, 2*wordSize); |
| 0 | 658 fstp_d(Address(rsp, 0)); |
| 659 movdbl(xmm0, Address(rsp, 0)); | |
| 304 | 660 addptr(rsp, 2*wordSize); |
| 0 | 661 } |
| 662 } | |
| 663 } | |
| 664 | |
| 665 #endif /* !CC_INTERP */ | |
| 666 | |
| 14676 | 667 void InterpreterMacroAssembler::get_method_counters(Register method, |
| 668 Register mcs, Label& skip) { | |
| 669 Label has_counters; | |
| 670 movptr(mcs, Address(method, Method::method_counters_offset())); | |
| 671 testptr(mcs, mcs); | |
| 672 jcc(Assembler::notZero, has_counters); | |
| 673 call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 674 InterpreterRuntime::build_method_counters), method); | |
| 675 movptr(mcs, Address(method,Method::method_counters_offset())); | |
| 676 testptr(mcs, mcs); | |
| 677 jcc(Assembler::zero, skip); // No MethodCounters allocated, OutOfMemory | |
| 678 bind(has_counters); | |
| 679 } | |
| 680 | |
| 0 | 681 |
| 682 // Lock object | |
| 683 // | |
| 684 // Argument: rdx : Points to BasicObjectLock to be used for locking. Must | |
| 685 // be initialized with object to lock | |
| 686 void InterpreterMacroAssembler::lock_object(Register lock_reg) { | |
| 687 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
| 688 | |
| 689 if (UseHeavyMonitors) { | |
| 690 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
| 691 } else { | |
| 692 | |
| 693 Label done; | |
| 694 | |
| 695 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
| 696 const Register obj_reg = rcx; // Will contain the oop | |
| 697 | |
| 698 const int obj_offset = BasicObjectLock::obj_offset_in_bytes(); | |
| 699 const int lock_offset = BasicObjectLock::lock_offset_in_bytes (); | |
| 700 const int mark_offset = lock_offset + BasicLock::displaced_header_offset_in_bytes(); | |
| 701 | |
| 702 Label slow_case; | |
| 703 | |
| 704 // Load object pointer into obj_reg %rcx | |
| 304 | 705 movptr(obj_reg, Address(lock_reg, obj_offset)); |
| 0 | 706 |
| 707 if (UseBiasedLocking) { | |
| 708 // Note: we use noreg for the temporary register since it's hard | |
| 709 // to come up with a free register on all incoming code paths | |
| 710 biased_locking_enter(lock_reg, obj_reg, swap_reg, noreg, false, done, &slow_case); | |
| 711 } | |
| 712 | |
| 713 // Load immediate 1 into swap_reg %rax, | |
| 304 | 714 movptr(swap_reg, (int32_t)1); |
| 0 | 715 |
| 716 // Load (object->mark() | 1) into swap_reg %rax, | |
| 304 | 717 orptr(swap_reg, Address(obj_reg, 0)); |
| 0 | 718 |
| 719 // Save (object->mark() | 1) into BasicLock's displaced header | |
| 304 | 720 movptr(Address(lock_reg, mark_offset), swap_reg); |
| 0 | 721 |
| 722 assert(lock_offset == 0, "displached header must be first word in BasicObjectLock"); | |
| 723 if (os::is_MP()) { | |
| 724 lock(); | |
| 725 } | |
| 304 | 726 cmpxchgptr(lock_reg, Address(obj_reg, 0)); |
| 0 | 727 if (PrintBiasedLockingStatistics) { |
| 728 cond_inc32(Assembler::zero, | |
| 729 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
| 730 } | |
| 731 jcc(Assembler::zero, done); | |
| 732 | |
| 733 // Test if the oopMark is an obvious stack pointer, i.e., | |
| 734 // 1) (mark & 3) == 0, and | |
| 735 // 2) rsp <= mark < mark + os::pagesize() | |
| 736 // | |
| 737 // These 3 tests can be done by evaluating the following | |
| 738 // expression: ((mark - rsp) & (3 - os::vm_page_size())), | |
| 739 // assuming both stack pointer and pagesize have their | |
| 740 // least significant 2 bits clear. | |
| 741 // NOTE: the oopMark is in swap_reg %rax, as the result of cmpxchg | |
| 304 | 742 subptr(swap_reg, rsp); |
| 743 andptr(swap_reg, 3 - os::vm_page_size()); | |
| 0 | 744 |
| 745 // Save the test result, for recursive case, the result is zero | |
| 304 | 746 movptr(Address(lock_reg, mark_offset), swap_reg); |
| 0 | 747 |
| 748 if (PrintBiasedLockingStatistics) { | |
| 749 cond_inc32(Assembler::zero, | |
| 750 ExternalAddress((address) BiasedLocking::fast_path_entry_count_addr())); | |
| 751 } | |
| 752 jcc(Assembler::zero, done); | |
| 753 | |
| 754 bind(slow_case); | |
| 755 | |
| 756 // Call the runtime routine for slow case | |
| 757 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorenter), lock_reg); | |
| 758 | |
| 759 bind(done); | |
| 760 } | |
| 761 } | |
| 762 | |
| 763 | |
| 764 // Unlocks an object. Used in monitorexit bytecode and remove_activation. | |
| 765 // | |
| 766 // Argument: rdx : Points to BasicObjectLock structure for lock | |
| 767 // Throw an IllegalMonitorException if object is not locked by current thread | |
| 768 // | |
| 769 // Uses: rax, rbx, rcx, rdx | |
| 770 void InterpreterMacroAssembler::unlock_object(Register lock_reg) { | |
| 771 assert(lock_reg == rdx, "The argument is only for looks. It must be rdx"); | |
| 772 | |
| 773 if (UseHeavyMonitors) { | |
| 774 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); | |
| 775 } else { | |
| 776 Label done; | |
| 777 | |
| 778 const Register swap_reg = rax; // Must use rax, for cmpxchg instruction | |
| 779 const Register header_reg = rbx; // Will contain the old oopMark | |
| 780 const Register obj_reg = rcx; // Will contain the oop | |
| 781 | |
| 782 save_bcp(); // Save in case of exception | |
| 783 | |
| 784 // Convert from BasicObjectLock structure to object and BasicLock structure | |
| 785 // Store the BasicLock address into %rax, | |
| 304 | 786 lea(swap_reg, Address(lock_reg, BasicObjectLock::lock_offset_in_bytes())); |
| 0 | 787 |
| 788 // Load oop into obj_reg(%rcx) | |
| 304 | 789 movptr(obj_reg, Address(lock_reg, BasicObjectLock::obj_offset_in_bytes ())); |
| 0 | 790 |
| 791 // Free entry | |
|
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792 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), NULL_WORD); |
| 0 | 793 |
| 794 if (UseBiasedLocking) { | |
| 795 biased_locking_exit(obj_reg, header_reg, done); | |
| 796 } | |
| 797 | |
| 798 // Load the old header from BasicLock structure | |
| 304 | 799 movptr(header_reg, Address(swap_reg, BasicLock::displaced_header_offset_in_bytes())); |
| 0 | 800 |
| 801 // Test for recursion | |
| 304 | 802 testptr(header_reg, header_reg); |
| 0 | 803 |
| 804 // zero for recursive case | |
| 805 jcc(Assembler::zero, done); | |
| 806 | |
| 807 // Atomic swap back the old header | |
| 808 if (os::is_MP()) lock(); | |
| 304 | 809 cmpxchgptr(header_reg, Address(obj_reg, 0)); |
| 0 | 810 |
| 811 // zero for recursive case | |
| 812 jcc(Assembler::zero, done); | |
| 813 | |
| 814 // Call the runtime routine for slow case. | |
| 304 | 815 movptr(Address(lock_reg, BasicObjectLock::obj_offset_in_bytes()), obj_reg); // restore obj |
| 0 | 816 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::monitorexit), lock_reg); |
| 817 | |
| 818 bind(done); | |
| 819 | |
| 820 restore_bcp(); | |
| 821 } | |
| 822 } | |
| 823 | |
| 824 | |
| 825 #ifndef CC_INTERP | |
| 826 | |
| 827 // Test ImethodDataPtr. If it is null, continue at the specified label | |
| 828 void InterpreterMacroAssembler::test_method_data_pointer(Register mdp, Label& zero_continue) { | |
| 829 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 830 movptr(mdp, Address(rbp, frame::interpreter_frame_mdx_offset * wordSize)); |
| 831 testptr(mdp, mdp); | |
| 0 | 832 jcc(Assembler::zero, zero_continue); |
| 833 } | |
| 834 | |
| 835 | |
| 836 // Set the method data pointer for the current bcp. | |
| 837 void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() { | |
| 838 assert(ProfileInterpreter, "must be profiling interpreter"); | |
|
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839 Label set_mdp; |
| 304 | 840 push(rax); |
| 841 push(rbx); | |
| 0 | 842 |
| 843 get_method(rbx); | |
| 844 // Test MDO to avoid the call if it is NULL. | |
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845 movptr(rax, Address(rbx, in_bytes(Method::method_data_offset()))); |
| 304 | 846 testptr(rax, rax); |
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847 jcc(Assembler::zero, set_mdp); |
| 0 | 848 // rbx,: method |
| 849 // rsi: bcp | |
| 850 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), rbx, rsi); | |
| 851 // rax,: mdi | |
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852 // mdo is guaranteed to be non-zero here, we checked for it before the call. |
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853 movptr(rbx, Address(rbx, in_bytes(Method::method_data_offset()))); |
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854 addptr(rbx, in_bytes(MethodData::data_offset())); |
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855 addptr(rax, rbx); |
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856 bind(set_mdp); |
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857 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), rax); |
| 304 | 858 pop(rbx); |
| 859 pop(rax); | |
| 0 | 860 } |
| 861 | |
| 862 void InterpreterMacroAssembler::verify_method_data_pointer() { | |
| 863 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 864 #ifdef ASSERT | |
| 865 Label verify_continue; | |
| 304 | 866 push(rax); |
| 867 push(rbx); | |
| 868 push(rcx); | |
| 869 push(rdx); | |
| 0 | 870 test_method_data_pointer(rcx, verify_continue); // If mdp is zero, continue |
| 871 get_method(rbx); | |
| 872 | |
| 873 // If the mdp is valid, it will point to a DataLayout header which is | |
| 874 // consistent with the bcp. The converse is highly probable also. | |
|
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875 load_unsigned_short(rdx, Address(rcx, in_bytes(DataLayout::bci_offset()))); |
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876 addptr(rdx, Address(rbx, Method::const_offset())); |
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877 lea(rdx, Address(rdx, ConstMethod::codes_offset())); |
| 304 | 878 cmpptr(rdx, rsi); |
| 0 | 879 jcc(Assembler::equal, verify_continue); |
| 880 // rbx,: method | |
| 881 // rsi: bcp | |
| 882 // rcx: mdp | |
| 883 call_VM_leaf(CAST_FROM_FN_PTR(address, InterpreterRuntime::verify_mdp), rbx, rsi, rcx); | |
| 884 bind(verify_continue); | |
| 304 | 885 pop(rdx); |
| 886 pop(rcx); | |
| 887 pop(rbx); | |
| 888 pop(rax); | |
| 0 | 889 #endif // ASSERT |
| 890 } | |
| 891 | |
| 892 | |
| 893 void InterpreterMacroAssembler::set_mdp_data_at(Register mdp_in, int constant, Register value) { | |
| 304 | 894 // %%% this seems to be used to store counter data which is surely 32bits |
| 895 // however 64bit side stores 64 bits which seems wrong | |
| 0 | 896 assert(ProfileInterpreter, "must be profiling interpreter"); |
| 897 Address data(mdp_in, constant); | |
| 304 | 898 movptr(data, value); |
| 0 | 899 } |
| 900 | |
| 901 | |
| 902 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
| 903 int constant, | |
| 904 bool decrement) { | |
| 905 // Counter address | |
| 906 Address data(mdp_in, constant); | |
| 907 | |
| 908 increment_mdp_data_at(data, decrement); | |
| 909 } | |
| 910 | |
| 911 | |
| 912 void InterpreterMacroAssembler::increment_mdp_data_at(Address data, | |
| 913 bool decrement) { | |
| 914 | |
| 915 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
| 916 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 917 | |
| 304 | 918 // %%% 64bit treats this as 64 bit which seems unlikely |
| 0 | 919 if (decrement) { |
| 920 // Decrement the register. Set condition codes. | |
| 921 addl(data, -DataLayout::counter_increment); | |
| 922 // If the decrement causes the counter to overflow, stay negative | |
| 923 Label L; | |
| 924 jcc(Assembler::negative, L); | |
| 925 addl(data, DataLayout::counter_increment); | |
| 926 bind(L); | |
| 927 } else { | |
| 928 assert(DataLayout::counter_increment == 1, | |
| 929 "flow-free idiom only works with 1"); | |
| 930 // Increment the register. Set carry flag. | |
| 931 addl(data, DataLayout::counter_increment); | |
| 932 // If the increment causes the counter to overflow, pull back by 1. | |
| 933 sbbl(data, 0); | |
| 934 } | |
| 935 } | |
| 936 | |
| 937 | |
| 938 void InterpreterMacroAssembler::increment_mdp_data_at(Register mdp_in, | |
| 939 Register reg, | |
| 940 int constant, | |
| 941 bool decrement) { | |
| 942 Address data(mdp_in, reg, Address::times_1, constant); | |
| 943 | |
| 944 increment_mdp_data_at(data, decrement); | |
| 945 } | |
| 946 | |
| 947 | |
| 948 void InterpreterMacroAssembler::set_mdp_flag_at(Register mdp_in, int flag_byte_constant) { | |
| 949 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 950 int header_offset = in_bytes(DataLayout::header_offset()); | |
| 951 int header_bits = DataLayout::flag_mask_to_header_mask(flag_byte_constant); | |
| 952 // Set the flag | |
| 953 orl(Address(mdp_in, header_offset), header_bits); | |
| 954 } | |
| 955 | |
| 956 | |
| 957 | |
| 958 void InterpreterMacroAssembler::test_mdp_data_at(Register mdp_in, | |
| 959 int offset, | |
| 960 Register value, | |
| 961 Register test_value_out, | |
| 962 Label& not_equal_continue) { | |
| 963 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 964 if (test_value_out == noreg) { | |
| 304 | 965 cmpptr(value, Address(mdp_in, offset)); |
| 0 | 966 } else { |
| 967 // Put the test value into a register, so caller can use it: | |
| 304 | 968 movptr(test_value_out, Address(mdp_in, offset)); |
| 969 cmpptr(test_value_out, value); | |
| 0 | 970 } |
| 971 jcc(Assembler::notEqual, not_equal_continue); | |
| 972 } | |
| 973 | |
| 974 | |
| 975 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, int offset_of_disp) { | |
| 976 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 977 Address disp_address(mdp_in, offset_of_disp); | |
| 304 | 978 addptr(mdp_in,disp_address); |
| 979 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 980 } |
| 981 | |
| 982 | |
| 983 void InterpreterMacroAssembler::update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp) { | |
| 984 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 985 Address disp_address(mdp_in, reg, Address::times_1, offset_of_disp); | |
| 304 | 986 addptr(mdp_in, disp_address); |
| 987 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 988 } |
| 989 | |
| 990 | |
| 991 void InterpreterMacroAssembler::update_mdp_by_constant(Register mdp_in, int constant) { | |
| 992 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 993 addptr(mdp_in, constant); |
| 994 movptr(Address(rbp, frame::interpreter_frame_mdx_offset * wordSize), mdp_in); | |
| 0 | 995 } |
| 996 | |
| 997 | |
| 998 void InterpreterMacroAssembler::update_mdp_for_ret(Register return_bci) { | |
| 999 assert(ProfileInterpreter, "must be profiling interpreter"); | |
| 304 | 1000 push(return_bci); // save/restore across call_VM |
| 0 | 1001 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::update_mdp_for_ret), return_bci); |
| 304 | 1002 pop(return_bci); |
| 0 | 1003 } |
| 1004 | |
| 1005 | |
| 1006 void InterpreterMacroAssembler::profile_taken_branch(Register mdp, Register bumped_count) { | |
| 1007 if (ProfileInterpreter) { | |
| 1008 Label profile_continue; | |
| 1009 | |
| 1010 // If no method data exists, go to profile_continue. | |
| 1011 // Otherwise, assign to mdp | |
| 1012 test_method_data_pointer(mdp, profile_continue); | |
| 1013 | |
| 1014 // We are taking a branch. Increment the taken count. | |
| 1015 // We inline increment_mdp_data_at to return bumped_count in a register | |
| 1016 //increment_mdp_data_at(mdp, in_bytes(JumpData::taken_offset())); | |
| 1017 Address data(mdp, in_bytes(JumpData::taken_offset())); | |
| 304 | 1018 |
| 1019 // %%% 64bit treats these cells as 64 bit but they seem to be 32 bit | |
| 0 | 1020 movl(bumped_count,data); |
| 1021 assert( DataLayout::counter_increment==1, "flow-free idiom only works with 1" ); | |
| 1022 addl(bumped_count, DataLayout::counter_increment); | |
| 1023 sbbl(bumped_count, 0); | |
| 1024 movl(data,bumped_count); // Store back out | |
| 1025 | |
| 1026 // The method data pointer needs to be updated to reflect the new target. | |
| 1027 update_mdp_by_offset(mdp, in_bytes(JumpData::displacement_offset())); | |
| 1028 bind (profile_continue); | |
| 1029 } | |
| 1030 } | |
| 1031 | |
| 1032 | |
| 1033 void InterpreterMacroAssembler::profile_not_taken_branch(Register mdp) { | |
| 1034 if (ProfileInterpreter) { | |
| 1035 Label profile_continue; | |
| 1036 | |
| 1037 // If no method data exists, go to profile_continue. | |
| 1038 test_method_data_pointer(mdp, profile_continue); | |
| 1039 | |
| 1040 // We are taking a branch. Increment the not taken count. | |
| 1041 increment_mdp_data_at(mdp, in_bytes(BranchData::not_taken_offset())); | |
| 1042 | |
| 1043 // The method data pointer needs to be updated to correspond to the next bytecode | |
| 1044 update_mdp_by_constant(mdp, in_bytes(BranchData::branch_data_size())); | |
| 1045 bind (profile_continue); | |
| 1046 } | |
| 1047 } | |
| 1048 | |
| 1049 void InterpreterMacroAssembler::profile_call(Register mdp) { | |
| 1050 if (ProfileInterpreter) { | |
| 1051 Label profile_continue; | |
| 1052 | |
| 1053 // If no method data exists, go to profile_continue. | |
| 1054 test_method_data_pointer(mdp, profile_continue); | |
| 1055 | |
| 1056 // We are making a call. Increment the count. | |
| 1057 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1058 | |
| 1059 // The method data pointer needs to be updated to reflect the new target. | |
| 1060 update_mdp_by_constant(mdp, in_bytes(CounterData::counter_data_size())); | |
| 1061 bind (profile_continue); | |
| 1062 } | |
| 1063 } | |
| 1064 | |
| 1065 | |
| 1066 void InterpreterMacroAssembler::profile_final_call(Register mdp) { | |
| 1067 if (ProfileInterpreter) { | |
| 1068 Label profile_continue; | |
| 1069 | |
| 1070 // If no method data exists, go to profile_continue. | |
| 1071 test_method_data_pointer(mdp, profile_continue); | |
| 1072 | |
| 1073 // We are making a call. Increment the count. | |
| 1074 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1075 | |
| 1076 // The method data pointer needs to be updated to reflect the new target. | |
| 1077 update_mdp_by_constant(mdp, in_bytes(VirtualCallData::virtual_call_data_size())); | |
| 1078 bind (profile_continue); | |
| 1079 } | |
| 1080 } | |
| 1081 | |
| 1082 | |
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1083 void InterpreterMacroAssembler::profile_virtual_call(Register receiver, Register mdp, |
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1084 Register reg2, |
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1085 bool receiver_can_be_null) { |
| 0 | 1086 if (ProfileInterpreter) { |
| 1087 Label profile_continue; | |
| 1088 | |
| 1089 // If no method data exists, go to profile_continue. | |
| 1090 test_method_data_pointer(mdp, profile_continue); | |
| 1091 | |
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1092 Label skip_receiver_profile; |
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1093 if (receiver_can_be_null) { |
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1094 Label not_null; |
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1095 testptr(receiver, receiver); |
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1096 jccb(Assembler::notZero, not_null); |
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1097 // We are making a call. Increment the count for null receiver. |
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1098 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
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1099 jmp(skip_receiver_profile); |
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1100 bind(not_null); |
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1101 } |
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1102 |
| 0 | 1103 // Record the receiver type. |
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1104 record_klass_in_profile(receiver, mdp, reg2, true); |
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1105 bind(skip_receiver_profile); |
| 0 | 1106 |
| 1107 // The method data pointer needs to be updated to reflect the new target. | |
| 1108 update_mdp_by_constant(mdp, | |
| 1109 in_bytes(VirtualCallData:: | |
| 1110 virtual_call_data_size())); | |
| 1111 bind(profile_continue); | |
| 1112 } | |
| 1113 } | |
| 1114 | |
| 1115 | |
| 1116 void InterpreterMacroAssembler::record_klass_in_profile_helper( | |
| 1117 Register receiver, Register mdp, | |
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1118 Register reg2, int start_row, |
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1119 Label& done, bool is_virtual_call) { |
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1120 if (TypeProfileWidth == 0) { |
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1121 if (is_virtual_call) { |
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1122 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
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1123 } |
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1124 return; |
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1125 } |
|
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1126 |
| 0 | 1127 int last_row = VirtualCallData::row_limit() - 1; |
| 1128 assert(start_row <= last_row, "must be work left to do"); | |
| 1129 // Test this row for both the receiver and for null. | |
| 1130 // Take any of three different outcomes: | |
| 1131 // 1. found receiver => increment count and goto done | |
| 1132 // 2. found null => keep looking for case 1, maybe allocate this cell | |
| 1133 // 3. found something else => keep looking for cases 1 and 2 | |
| 1134 // Case 3 is handled by a recursive call. | |
| 1135 for (int row = start_row; row <= last_row; row++) { | |
| 1136 Label next_test; | |
| 1137 bool test_for_null_also = (row == start_row); | |
| 1138 | |
| 1139 // See if the receiver is receiver[n]. | |
| 1140 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(row)); | |
| 1141 test_mdp_data_at(mdp, recvr_offset, receiver, | |
| 1142 (test_for_null_also ? reg2 : noreg), | |
| 1143 next_test); | |
| 1144 // (Reg2 now contains the receiver from the CallData.) | |
| 1145 | |
| 1146 // The receiver is receiver[n]. Increment count[n]. | |
| 1147 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(row)); | |
| 1148 increment_mdp_data_at(mdp, count_offset); | |
| 1149 jmp(done); | |
| 1150 bind(next_test); | |
| 1151 | |
| 1152 if (row == start_row) { | |
|
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1153 Label found_null; |
| 0 | 1154 // Failed the equality check on receiver[n]... Test for null. |
| 304 | 1155 testptr(reg2, reg2); |
| 0 | 1156 if (start_row == last_row) { |
| 1157 // The only thing left to do is handle the null case. | |
|
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1158 if (is_virtual_call) { |
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1159 jccb(Assembler::zero, found_null); |
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1160 // Receiver did not match any saved receiver and there is no empty row for it. |
|
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1161 // Increment total counter to indicate polymorphic case. |
|
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1162 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); |
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1163 jmp(done); |
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1164 bind(found_null); |
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1165 } else { |
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1166 jcc(Assembler::notZero, done); |
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1167 } |
| 0 | 1168 break; |
| 1169 } | |
| 1170 // Since null is rare, make it be the branch-taken case. | |
| 1171 jcc(Assembler::zero, found_null); | |
| 1172 | |
| 1173 // Put all the "Case 3" tests here. | |
|
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1174 record_klass_in_profile_helper(receiver, mdp, reg2, start_row + 1, done, is_virtual_call); |
| 0 | 1175 |
| 1176 // Found a null. Keep searching for a matching receiver, | |
| 1177 // but remember that this is an empty (unused) slot. | |
| 1178 bind(found_null); | |
| 1179 } | |
| 1180 } | |
| 1181 | |
| 1182 // In the fall-through case, we found no matching receiver, but we | |
| 1183 // observed the receiver[start_row] is NULL. | |
| 1184 | |
| 1185 // Fill in the receiver field and increment the count. | |
| 1186 int recvr_offset = in_bytes(VirtualCallData::receiver_offset(start_row)); | |
| 1187 set_mdp_data_at(mdp, recvr_offset, receiver); | |
| 1188 int count_offset = in_bytes(VirtualCallData::receiver_count_offset(start_row)); | |
| 3960 | 1189 movptr(reg2, (intptr_t)DataLayout::counter_increment); |
| 0 | 1190 set_mdp_data_at(mdp, count_offset, reg2); |
|
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1191 if (start_row > 0) { |
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1192 jmp(done); |
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1193 } |
| 0 | 1194 } |
| 1195 | |
| 1196 void InterpreterMacroAssembler::record_klass_in_profile(Register receiver, | |
|
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1197 Register mdp, Register reg2, |
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1198 bool is_virtual_call) { |
| 0 | 1199 assert(ProfileInterpreter, "must be profiling"); |
| 1200 Label done; | |
| 1201 | |
|
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1202 record_klass_in_profile_helper(receiver, mdp, reg2, 0, done, is_virtual_call); |
| 0 | 1203 |
| 1204 bind (done); | |
| 1205 } | |
| 1206 | |
| 1207 void InterpreterMacroAssembler::profile_ret(Register return_bci, Register mdp) { | |
| 1208 if (ProfileInterpreter) { | |
| 1209 Label profile_continue; | |
| 1210 uint row; | |
| 1211 | |
| 1212 // If no method data exists, go to profile_continue. | |
| 1213 test_method_data_pointer(mdp, profile_continue); | |
| 1214 | |
| 1215 // Update the total ret count. | |
| 1216 increment_mdp_data_at(mdp, in_bytes(CounterData::count_offset())); | |
| 1217 | |
| 1218 for (row = 0; row < RetData::row_limit(); row++) { | |
| 1219 Label next_test; | |
| 1220 | |
| 1221 // See if return_bci is equal to bci[n]: | |
| 1222 test_mdp_data_at(mdp, in_bytes(RetData::bci_offset(row)), return_bci, | |
| 1223 noreg, next_test); | |
| 1224 | |
| 1225 // return_bci is equal to bci[n]. Increment the count. | |
| 1226 increment_mdp_data_at(mdp, in_bytes(RetData::bci_count_offset(row))); | |
| 1227 | |
| 1228 // The method data pointer needs to be updated to reflect the new target. | |
| 1229 update_mdp_by_offset(mdp, in_bytes(RetData::bci_displacement_offset(row))); | |
| 1230 jmp(profile_continue); | |
| 1231 bind(next_test); | |
| 1232 } | |
| 1233 | |
| 1234 update_mdp_for_ret(return_bci); | |
| 1235 | |
| 1236 bind (profile_continue); | |
| 1237 } | |
| 1238 } | |
| 1239 | |
| 1240 | |
| 1241 void InterpreterMacroAssembler::profile_null_seen(Register mdp) { | |
| 1242 if (ProfileInterpreter) { | |
| 1243 Label profile_continue; | |
| 1244 | |
| 1245 // If no method data exists, go to profile_continue. | |
| 1246 test_method_data_pointer(mdp, profile_continue); | |
| 1247 | |
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1248 set_mdp_flag_at(mdp, BitData::null_seen_byte_constant()); |
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1249 |
| 0 | 1250 // The method data pointer needs to be updated. |
| 1251 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
| 1252 if (TypeProfileCasts) { | |
| 1253 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1254 } | |
| 1255 update_mdp_by_constant(mdp, mdp_delta); | |
| 1256 | |
| 1257 bind (profile_continue); | |
| 1258 } | |
| 1259 } | |
| 1260 | |
| 1261 | |
| 1262 void InterpreterMacroAssembler::profile_typecheck_failed(Register mdp) { | |
| 1263 if (ProfileInterpreter && TypeProfileCasts) { | |
| 1264 Label profile_continue; | |
| 1265 | |
| 1266 // If no method data exists, go to profile_continue. | |
| 1267 test_method_data_pointer(mdp, profile_continue); | |
| 1268 | |
| 1269 int count_offset = in_bytes(CounterData::count_offset()); | |
| 1270 // Back up the address, since we have already bumped the mdp. | |
| 1271 count_offset -= in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1272 | |
| 1273 // *Decrement* the counter. We expect to see zero or small negatives. | |
| 1274 increment_mdp_data_at(mdp, count_offset, true); | |
| 1275 | |
| 1276 bind (profile_continue); | |
| 1277 } | |
| 1278 } | |
| 1279 | |
| 1280 | |
| 1281 void InterpreterMacroAssembler::profile_typecheck(Register mdp, Register klass, Register reg2) | |
| 1282 { | |
| 1283 if (ProfileInterpreter) { | |
| 1284 Label profile_continue; | |
| 1285 | |
| 1286 // If no method data exists, go to profile_continue. | |
| 1287 test_method_data_pointer(mdp, profile_continue); | |
| 1288 | |
| 1289 // The method data pointer needs to be updated. | |
| 1290 int mdp_delta = in_bytes(BitData::bit_data_size()); | |
| 1291 if (TypeProfileCasts) { | |
| 1292 mdp_delta = in_bytes(VirtualCallData::virtual_call_data_size()); | |
| 1293 | |
| 1294 // Record the object type. | |
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1295 record_klass_in_profile(klass, mdp, reg2, false); |
| 0 | 1296 assert(reg2 == rdi, "we know how to fix this blown reg"); |
| 1297 restore_locals(); // Restore EDI | |
| 1298 } | |
| 1299 update_mdp_by_constant(mdp, mdp_delta); | |
| 1300 | |
| 1301 bind(profile_continue); | |
| 1302 } | |
| 1303 } | |
| 1304 | |
| 1305 | |
| 1306 void InterpreterMacroAssembler::profile_switch_default(Register mdp) { | |
| 1307 if (ProfileInterpreter) { | |
| 1308 Label profile_continue; | |
| 1309 | |
| 1310 // If no method data exists, go to profile_continue. | |
| 1311 test_method_data_pointer(mdp, profile_continue); | |
| 1312 | |
| 1313 // Update the default case count | |
| 1314 increment_mdp_data_at(mdp, in_bytes(MultiBranchData::default_count_offset())); | |
| 1315 | |
| 1316 // The method data pointer needs to be updated. | |
| 1317 update_mdp_by_offset(mdp, in_bytes(MultiBranchData::default_displacement_offset())); | |
| 1318 | |
| 1319 bind (profile_continue); | |
| 1320 } | |
| 1321 } | |
| 1322 | |
| 1323 | |
| 1324 void InterpreterMacroAssembler::profile_switch_case(Register index, Register mdp, Register reg2) { | |
| 1325 if (ProfileInterpreter) { | |
| 1326 Label profile_continue; | |
| 1327 | |
| 1328 // If no method data exists, go to profile_continue. | |
| 1329 test_method_data_pointer(mdp, profile_continue); | |
| 1330 | |
| 1331 // Build the base (index * per_case_size_in_bytes()) + case_array_offset_in_bytes() | |
| 3960 | 1332 movptr(reg2, (intptr_t)in_bytes(MultiBranchData::per_case_size())); |
| 304 | 1333 // index is positive and so should have correct value if this code were |
| 1334 // used on 64bits | |
| 1335 imulptr(index, reg2); | |
| 1336 addptr(index, in_bytes(MultiBranchData::case_array_offset())); | |
| 0 | 1337 |
| 1338 // Update the case count | |
| 1339 increment_mdp_data_at(mdp, index, in_bytes(MultiBranchData::relative_count_offset())); | |
| 1340 | |
| 1341 // The method data pointer needs to be updated. | |
| 1342 update_mdp_by_offset(mdp, index, in_bytes(MultiBranchData::relative_displacement_offset())); | |
| 1343 | |
| 1344 bind (profile_continue); | |
| 1345 } | |
| 1346 } | |
| 1347 | |
| 1348 #endif // !CC_INTERP | |
| 1349 | |
| 1350 | |
| 1351 | |
| 1352 void InterpreterMacroAssembler::verify_oop(Register reg, TosState state) { | |
| 1353 if (state == atos) MacroAssembler::verify_oop(reg); | |
| 1354 } | |
| 1355 | |
| 1356 | |
| 1357 #ifndef CC_INTERP | |
| 1358 void InterpreterMacroAssembler::verify_FPU(int stack_depth, TosState state) { | |
| 1359 if (state == ftos || state == dtos) MacroAssembler::verify_FPU(stack_depth); | |
| 1360 } | |
| 1361 | |
| 14676 | 1362 // Jump if ((*counter_addr += increment) & mask) satisfies the condition. |
| 1363 void InterpreterMacroAssembler::increment_mask_and_jump(Address counter_addr, | |
| 1364 int increment, int mask, | |
| 1365 Register scratch, bool preloaded, | |
| 1366 Condition cond, Label* where) { | |
| 1367 if (!preloaded) { | |
| 1368 movl(scratch, counter_addr); | |
| 1369 } | |
| 1370 incrementl(scratch, increment); | |
| 1371 movl(counter_addr, scratch); | |
| 1372 andl(scratch, mask); | |
| 1373 jcc(cond, *where); | |
| 1374 } | |
| 0 | 1375 #endif /* CC_INTERP */ |
| 1376 | |
| 1377 | |
| 1378 void InterpreterMacroAssembler::notify_method_entry() { | |
| 1379 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
| 1380 // track stack depth. If it is possible to enter interp_only_mode we add | |
| 1381 // the code to check if the event should be sent. | |
| 1382 if (JvmtiExport::can_post_interpreter_events()) { | |
| 1383 Label L; | |
| 1384 get_thread(rcx); | |
| 1385 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
| 1386 testl(rcx,rcx); | |
| 1387 jcc(Assembler::zero, L); | |
| 1388 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_entry)); | |
| 1389 bind(L); | |
| 1390 } | |
| 1391 | |
| 1392 { | |
| 1393 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
| 1394 get_thread(rcx); | |
| 1395 get_method(rbx); | |
| 1396 call_VM_leaf( | |
| 1397 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), rcx, rbx); | |
| 1398 } | |
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1400 // RedefineClasses() tracing support for obsolete method entry |
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1401 if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) { |
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1402 get_thread(rcx); |
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1403 get_method(rbx); |
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1404 call_VM_leaf( |
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1405 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry), |
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1406 rcx, rbx); |
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1407 } |
| 0 | 1408 } |
| 1409 | |
| 1410 | |
| 1411 void InterpreterMacroAssembler::notify_method_exit( | |
| 1412 TosState state, NotifyMethodExitMode mode) { | |
| 1413 // Whenever JVMTI is interp_only_mode, method entry/exit events are sent to | |
| 1414 // track stack depth. If it is possible to enter interp_only_mode we add | |
| 1415 // the code to check if the event should be sent. | |
| 1416 if (mode == NotifyJVMTI && JvmtiExport::can_post_interpreter_events()) { | |
| 1417 Label L; | |
| 1418 // Note: frame::interpreter_frame_result has a dependency on how the | |
| 1419 // method result is saved across the call to post_method_exit. If this | |
| 1420 // is changed then the interpreter_frame_result implementation will | |
| 1421 // need to be updated too. | |
| 1422 | |
| 1423 // For c++ interpreter the result is always stored at a known location in the frame | |
| 1424 // template interpreter will leave it on the top of the stack. | |
| 1425 NOT_CC_INTERP(push(state);) | |
| 1426 get_thread(rcx); | |
| 1427 movl(rcx, Address(rcx, JavaThread::interp_only_mode_offset())); | |
| 1428 testl(rcx,rcx); | |
| 1429 jcc(Assembler::zero, L); | |
| 1430 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_method_exit)); | |
| 1431 bind(L); | |
| 1432 NOT_CC_INTERP(pop(state);) | |
| 1433 } | |
| 1434 | |
| 1435 { | |
| 1436 SkipIfEqual skip_if(this, &DTraceMethodProbes, 0); | |
| 304 | 1437 NOT_CC_INTERP(push(state)); |
| 0 | 1438 get_thread(rbx); |
| 1439 get_method(rcx); | |
| 1440 call_VM_leaf( | |
| 1441 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), | |
| 1442 rbx, rcx); | |
| 304 | 1443 NOT_CC_INTERP(pop(state)); |
| 0 | 1444 } |
| 1445 } |