Mercurial > hg > truffle
annotate src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | 1d7922586cf6 |
| children | 8a02ca5e5576 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 6057 | 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "c1/c1_Compilation.hpp" | |
| 27 #include "c1/c1_LIRAssembler.hpp" | |
| 28 #include "c1/c1_MacroAssembler.hpp" | |
| 29 #include "c1/c1_Runtime1.hpp" | |
| 30 #include "c1/c1_ValueStack.hpp" | |
| 31 #include "ci/ciArrayKlass.hpp" | |
| 32 #include "ci/ciInstance.hpp" | |
| 33 #include "gc_interface/collectedHeap.hpp" | |
| 34 #include "memory/barrierSet.hpp" | |
| 35 #include "memory/cardTableModRefBS.hpp" | |
| 36 #include "nativeInst_sparc.hpp" | |
| 37 #include "oops/objArrayKlass.hpp" | |
| 38 #include "runtime/sharedRuntime.hpp" | |
| 0 | 39 |
| 40 #define __ _masm-> | |
| 41 | |
| 42 | |
| 43 //------------------------------------------------------------ | |
| 44 | |
| 45 | |
| 46 bool LIR_Assembler::is_small_constant(LIR_Opr opr) { | |
| 47 if (opr->is_constant()) { | |
| 48 LIR_Const* constant = opr->as_constant_ptr(); | |
| 49 switch (constant->type()) { | |
| 50 case T_INT: { | |
| 51 jint value = constant->as_jint(); | |
| 52 return Assembler::is_simm13(value); | |
| 53 } | |
| 54 | |
| 55 default: | |
| 56 return false; | |
| 57 } | |
| 58 } | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 bool LIR_Assembler::is_single_instruction(LIR_Op* op) { | |
| 64 switch (op->code()) { | |
| 65 case lir_null_check: | |
| 66 return true; | |
| 67 | |
| 68 | |
| 69 case lir_add: | |
| 70 case lir_ushr: | |
| 71 case lir_shr: | |
| 72 case lir_shl: | |
| 73 // integer shifts and adds are always one instruction | |
| 74 return op->result_opr()->is_single_cpu(); | |
| 75 | |
| 76 | |
| 77 case lir_move: { | |
| 78 LIR_Op1* op1 = op->as_Op1(); | |
| 79 LIR_Opr src = op1->in_opr(); | |
| 80 LIR_Opr dst = op1->result_opr(); | |
| 81 | |
| 82 if (src == dst) { | |
| 83 NEEDS_CLEANUP; | |
| 84 // this works around a problem where moves with the same src and dst | |
| 85 // end up in the delay slot and then the assembler swallows the mov | |
| 86 // since it has no effect and then it complains because the delay slot | |
| 87 // is empty. returning false stops the optimizer from putting this in | |
| 88 // the delay slot | |
| 89 return false; | |
| 90 } | |
| 91 | |
| 92 // don't put moves involving oops into the delay slot since the VerifyOops code | |
| 93 // will make it much larger than a single instruction. | |
| 94 if (VerifyOops) { | |
| 95 return false; | |
| 96 } | |
| 97 | |
| 98 if (src->is_double_cpu() || dst->is_double_cpu() || op1->patch_code() != lir_patch_none || | |
| 99 ((src->is_double_fpu() || dst->is_double_fpu()) && op1->move_kind() != lir_move_normal)) { | |
| 100 return false; | |
| 101 } | |
| 102 | |
| 2002 | 103 if (UseCompressedOops) { |
| 104 if (dst->is_address() && !dst->is_stack() && (dst->type() == T_OBJECT || dst->type() == T_ARRAY)) return false; | |
| 105 if (src->is_address() && !src->is_stack() && (src->type() == T_OBJECT || src->type() == T_ARRAY)) return false; | |
| 106 } | |
| 107 | |
| 0 | 108 if (dst->is_register()) { |
| 109 if (src->is_address() && Assembler::is_simm13(src->as_address_ptr()->disp())) { | |
| 110 return !PatchALot; | |
| 111 } else if (src->is_single_stack()) { | |
| 112 return true; | |
| 113 } | |
| 114 } | |
| 115 | |
| 116 if (src->is_register()) { | |
| 117 if (dst->is_address() && Assembler::is_simm13(dst->as_address_ptr()->disp())) { | |
| 118 return !PatchALot; | |
| 119 } else if (dst->is_single_stack()) { | |
| 120 return true; | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 if (dst->is_register() && | |
| 125 ((src->is_register() && src->is_single_word() && src->is_same_type(dst)) || | |
| 126 (src->is_constant() && LIR_Assembler::is_small_constant(op->as_Op1()->in_opr())))) { | |
| 127 return true; | |
| 128 } | |
| 129 | |
| 130 return false; | |
| 131 } | |
| 132 | |
| 133 default: | |
| 134 return false; | |
| 135 } | |
| 136 ShouldNotReachHere(); | |
| 137 } | |
| 138 | |
| 139 | |
| 140 LIR_Opr LIR_Assembler::receiverOpr() { | |
| 141 return FrameMap::O0_oop_opr; | |
| 142 } | |
| 143 | |
| 144 | |
| 145 LIR_Opr LIR_Assembler::osrBufferPointer() { | |
| 146 return FrameMap::I0_opr; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 int LIR_Assembler::initial_frame_size_in_bytes() { | |
| 151 return in_bytes(frame_map()->framesize_in_bytes()); | |
| 152 } | |
| 153 | |
| 154 | |
| 155 // inline cache check: the inline cached class is in G5_inline_cache_reg(G5); | |
| 156 // we fetch the class of the receiver (O0) and compare it with the cached class. | |
| 157 // If they do not match we jump to slow case. | |
| 158 int LIR_Assembler::check_icache() { | |
| 159 int offset = __ offset(); | |
| 160 __ inline_cache_check(O0, G5_inline_cache_reg); | |
| 161 return offset; | |
| 162 } | |
| 163 | |
| 164 | |
| 165 void LIR_Assembler::osr_entry() { | |
| 166 // On-stack-replacement entry sequence (interpreter frame layout described in interpreter_sparc.cpp): | |
| 167 // | |
| 168 // 1. Create a new compiled activation. | |
| 169 // 2. Initialize local variables in the compiled activation. The expression stack must be empty | |
| 170 // at the osr_bci; it is not initialized. | |
| 171 // 3. Jump to the continuation address in compiled code to resume execution. | |
| 172 | |
| 173 // OSR entry point | |
| 174 offsets()->set_value(CodeOffsets::OSR_Entry, code_offset()); | |
| 175 BlockBegin* osr_entry = compilation()->hir()->osr_entry(); | |
| 176 ValueStack* entry_state = osr_entry->end()->state(); | |
| 177 int number_of_locks = entry_state->locks_size(); | |
| 178 | |
| 179 // Create a frame for the compiled activation. | |
| 180 __ build_frame(initial_frame_size_in_bytes()); | |
| 181 | |
| 182 // OSR buffer is | |
| 183 // | |
| 184 // locals[nlocals-1..0] | |
| 185 // monitors[number_of_locks-1..0] | |
| 186 // | |
| 187 // locals is a direct copy of the interpreter frame so in the osr buffer | |
| 188 // so first slot in the local array is the last local from the interpreter | |
| 189 // and last slot is local[0] (receiver) from the interpreter | |
| 190 // | |
| 191 // Similarly with locks. The first lock slot in the osr buffer is the nth lock | |
| 192 // from the interpreter frame, the nth lock slot in the osr buffer is 0th lock | |
| 193 // in the interpreter frame (the method lock if a sync method) | |
| 194 | |
| 195 // Initialize monitors in the compiled activation. | |
| 196 // I0: pointer to osr buffer | |
| 197 // | |
| 198 // All other registers are dead at this point and the locals will be | |
| 199 // copied into place by code emitted in the IR. | |
| 200 | |
| 201 Register OSR_buf = osrBufferPointer()->as_register(); | |
| 202 { assert(frame::interpreter_frame_monitor_size() == BasicObjectLock::size(), "adjust code below"); | |
| 203 int monitor_offset = BytesPerWord * method()->max_locals() + | |
| 1060 | 204 (2 * BytesPerWord) * (number_of_locks - 1); |
| 205 // SharedRuntime::OSR_migration_begin() packs BasicObjectLocks in | |
| 206 // the OSR buffer using 2 word entries: first the lock and then | |
| 207 // the oop. | |
| 0 | 208 for (int i = 0; i < number_of_locks; i++) { |
| 1060 | 209 int slot_offset = monitor_offset - ((i * 2) * BytesPerWord); |
| 0 | 210 #ifdef ASSERT |
| 211 // verify the interpreter's monitor has a non-null object | |
| 212 { | |
| 213 Label L; | |
| 1060 | 214 __ ld_ptr(OSR_buf, slot_offset + 1*BytesPerWord, O7); |
| 3839 | 215 __ cmp_and_br_short(O7, G0, Assembler::notEqual, Assembler::pt, L); |
| 0 | 216 __ stop("locked object is NULL"); |
| 217 __ bind(L); | |
| 218 } | |
| 219 #endif // ASSERT | |
| 220 // Copy the lock field into the compiled activation. | |
| 1060 | 221 __ ld_ptr(OSR_buf, slot_offset + 0, O7); |
| 0 | 222 __ st_ptr(O7, frame_map()->address_for_monitor_lock(i)); |
| 1060 | 223 __ ld_ptr(OSR_buf, slot_offset + 1*BytesPerWord, O7); |
| 0 | 224 __ st_ptr(O7, frame_map()->address_for_monitor_object(i)); |
| 225 } | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 | |
| 230 // Optimized Library calls | |
| 231 // This is the fast version of java.lang.String.compare; it has not | |
| 232 // OSR-entry and therefore, we generate a slow version for OSR's | |
| 233 void LIR_Assembler::emit_string_compare(LIR_Opr left, LIR_Opr right, LIR_Opr dst, CodeEmitInfo* info) { | |
| 234 Register str0 = left->as_register(); | |
| 235 Register str1 = right->as_register(); | |
| 236 | |
| 237 Label Ldone; | |
| 238 | |
| 239 Register result = dst->as_register(); | |
| 240 { | |
| 6057 | 241 // Get a pointer to the first character of string0 in tmp0 |
| 242 // and get string0.length() in str0 | |
| 243 // Get a pointer to the first character of string1 in tmp1 | |
| 244 // and get string1.length() in str1 | |
| 245 // Also, get string0.length()-string1.length() in | |
| 246 // o7 and get the condition code set | |
| 0 | 247 // Note: some instructions have been hoisted for better instruction scheduling |
| 248 | |
| 249 Register tmp0 = L0; | |
| 250 Register tmp1 = L1; | |
| 251 Register tmp2 = L2; | |
| 252 | |
| 253 int value_offset = java_lang_String:: value_offset_in_bytes(); // char array | |
| 6057 | 254 if (java_lang_String::has_offset_field()) { |
| 255 int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position | |
| 256 int count_offset = java_lang_String:: count_offset_in_bytes(); | |
| 257 __ load_heap_oop(str0, value_offset, tmp0); | |
| 258 __ ld(str0, offset_offset, tmp2); | |
| 259 __ add(tmp0, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0); | |
| 260 __ ld(str0, count_offset, str0); | |
| 261 __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2); | |
| 262 } else { | |
| 263 __ load_heap_oop(str0, value_offset, tmp1); | |
| 264 __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0); | |
| 265 __ ld(tmp1, arrayOopDesc::length_offset_in_bytes(), str0); | |
| 266 } | |
| 0 | 267 |
| 268 // str1 may be null | |
| 269 add_debug_info_for_null_check_here(info); | |
| 270 | |
| 6057 | 271 if (java_lang_String::has_offset_field()) { |
| 272 int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position | |
| 273 int count_offset = java_lang_String:: count_offset_in_bytes(); | |
| 274 __ load_heap_oop(str1, value_offset, tmp1); | |
| 275 __ add(tmp0, tmp2, tmp0); | |
| 276 | |
| 277 __ ld(str1, offset_offset, tmp2); | |
| 278 __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1); | |
| 279 __ ld(str1, count_offset, str1); | |
| 280 __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2); | |
| 281 __ add(tmp1, tmp2, tmp1); | |
| 282 } else { | |
| 283 __ load_heap_oop(str1, value_offset, tmp2); | |
| 284 __ add(tmp2, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1); | |
| 285 __ ld(tmp2, arrayOopDesc::length_offset_in_bytes(), str1); | |
| 286 } | |
| 0 | 287 __ subcc(str0, str1, O7); |
| 288 } | |
| 289 | |
| 290 { | |
| 291 // Compute the minimum of the string lengths, scale it and store it in limit | |
| 292 Register count0 = I0; | |
| 293 Register count1 = I1; | |
| 294 Register limit = L3; | |
| 295 | |
| 296 Label Lskip; | |
| 297 __ sll(count0, exact_log2(sizeof(jchar)), limit); // string0 is shorter | |
| 298 __ br(Assembler::greater, true, Assembler::pt, Lskip); | |
| 299 __ delayed()->sll(count1, exact_log2(sizeof(jchar)), limit); // string1 is shorter | |
| 300 __ bind(Lskip); | |
| 301 | |
| 302 // If either string is empty (or both of them) the result is the difference in lengths | |
| 303 __ cmp(limit, 0); | |
| 304 __ br(Assembler::equal, true, Assembler::pn, Ldone); | |
| 305 __ delayed()->mov(O7, result); // result is difference in lengths | |
| 306 } | |
| 307 | |
| 308 { | |
| 309 // Neither string is empty | |
| 310 Label Lloop; | |
| 311 | |
| 312 Register base0 = L0; | |
| 313 Register base1 = L1; | |
| 314 Register chr0 = I0; | |
| 315 Register chr1 = I1; | |
| 316 Register limit = L3; | |
| 317 | |
| 318 // Shift base0 and base1 to the end of the arrays, negate limit | |
| 319 __ add(base0, limit, base0); | |
| 320 __ add(base1, limit, base1); | |
| 6057 | 321 __ neg(limit); // limit = -min{string0.length(), string1.length()} |
| 0 | 322 |
| 323 __ lduh(base0, limit, chr0); | |
| 324 __ bind(Lloop); | |
| 325 __ lduh(base1, limit, chr1); | |
| 326 __ subcc(chr0, chr1, chr0); | |
| 327 __ br(Assembler::notZero, false, Assembler::pn, Ldone); | |
| 328 assert(chr0 == result, "result must be pre-placed"); | |
| 329 __ delayed()->inccc(limit, sizeof(jchar)); | |
| 330 __ br(Assembler::notZero, true, Assembler::pt, Lloop); | |
| 331 __ delayed()->lduh(base0, limit, chr0); | |
| 332 } | |
| 333 | |
| 334 // If strings are equal up to min length, return the length difference. | |
| 335 __ mov(O7, result); | |
| 336 | |
| 337 // Otherwise, return the difference between the first mismatched chars. | |
| 338 __ bind(Ldone); | |
| 339 } | |
| 340 | |
| 341 | |
| 342 // -------------------------------------------------------------------------------------------- | |
| 343 | |
| 344 void LIR_Assembler::monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no) { | |
| 345 if (!GenerateSynchronizationCode) return; | |
| 346 | |
| 347 Register obj_reg = obj_opr->as_register(); | |
| 348 Register lock_reg = lock_opr->as_register(); | |
| 349 | |
| 350 Address mon_addr = frame_map()->address_for_monitor_lock(monitor_no); | |
| 351 Register reg = mon_addr.base(); | |
| 352 int offset = mon_addr.disp(); | |
| 353 // compute pointer to BasicLock | |
| 354 if (mon_addr.is_simm13()) { | |
| 355 __ add(reg, offset, lock_reg); | |
| 356 } | |
| 357 else { | |
| 358 __ set(offset, lock_reg); | |
| 359 __ add(reg, lock_reg, lock_reg); | |
| 360 } | |
| 361 // unlock object | |
| 362 MonitorAccessStub* slow_case = new MonitorExitStub(lock_opr, UseFastLocking, monitor_no); | |
| 363 // _slow_case_stubs->append(slow_case); | |
| 364 // temporary fix: must be created after exceptionhandler, therefore as call stub | |
| 365 _slow_case_stubs->append(slow_case); | |
| 366 if (UseFastLocking) { | |
| 367 // try inlined fast unlocking first, revert to slow locking if it fails | |
| 368 // note: lock_reg points to the displaced header since the displaced header offset is 0! | |
| 369 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 370 __ unlock_object(hdr, obj_reg, lock_reg, *slow_case->entry()); | |
| 371 } else { | |
| 372 // always do slow unlocking | |
| 373 // note: the slow unlocking code could be inlined here, however if we use | |
| 374 // slow unlocking, speed doesn't matter anyway and this solution is | |
| 375 // simpler and requires less duplicated code - additionally, the | |
| 376 // slow unlocking code is the same in either case which simplifies | |
| 377 // debugging | |
| 378 __ br(Assembler::always, false, Assembler::pt, *slow_case->entry()); | |
| 379 __ delayed()->nop(); | |
| 380 } | |
| 381 // done | |
| 382 __ bind(*slow_case->continuation()); | |
| 383 } | |
| 384 | |
| 385 | |
| 1204 | 386 int LIR_Assembler::emit_exception_handler() { |
| 0 | 387 // if the last instruction is a call (typically to do a throw which |
| 388 // is coming at the end after block reordering) the return address | |
| 389 // must still point into the code area in order to avoid assertion | |
| 390 // failures when searching for the corresponding bci => add a nop | |
| 391 // (was bug 5/14/1999 - gri) | |
| 392 __ nop(); | |
| 393 | |
| 394 // generate code for exception handler | |
| 395 ciMethod* method = compilation()->method(); | |
| 396 | |
| 397 address handler_base = __ start_a_stub(exception_handler_size); | |
| 398 | |
| 399 if (handler_base == NULL) { | |
| 400 // not enough space left for the handler | |
| 401 bailout("exception handler overflow"); | |
| 1204 | 402 return -1; |
| 0 | 403 } |
| 1204 | 404 |
| 0 | 405 int offset = code_offset(); |
| 406 | |
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407 __ call(Runtime1::entry_for(Runtime1::handle_exception_from_callee_id), relocInfo::runtime_call_type); |
| 0 | 408 __ delayed()->nop(); |
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409 __ should_not_reach_here(); |
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410 guarantee(code_offset() - offset <= exception_handler_size, "overflow"); |
| 0 | 411 __ end_a_stub(); |
| 1204 | 412 |
| 413 return offset; | |
| 0 | 414 } |
| 415 | |
| 1204 | 416 |
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417 // Emit the code to remove the frame from the stack in the exception |
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418 // unwind path. |
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419 int LIR_Assembler::emit_unwind_handler() { |
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420 #ifndef PRODUCT |
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421 if (CommentedAssembly) { |
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422 _masm->block_comment("Unwind handler"); |
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423 } |
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424 #endif |
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425 |
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426 int offset = code_offset(); |
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427 |
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428 // Fetch the exception from TLS and clear out exception related thread state |
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429 __ ld_ptr(G2_thread, in_bytes(JavaThread::exception_oop_offset()), O0); |
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430 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_oop_offset())); |
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431 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_pc_offset())); |
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432 |
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433 __ bind(_unwind_handler_entry); |
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434 __ verify_not_null_oop(O0); |
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435 if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) { |
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436 __ mov(O0, I0); // Preserve the exception |
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437 } |
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438 |
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439 // Preform needed unlocking |
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440 MonitorExitStub* stub = NULL; |
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441 if (method()->is_synchronized()) { |
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442 monitor_address(0, FrameMap::I1_opr); |
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443 stub = new MonitorExitStub(FrameMap::I1_opr, true, 0); |
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444 __ unlock_object(I3, I2, I1, *stub->entry()); |
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445 __ bind(*stub->continuation()); |
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446 } |
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447 |
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448 if (compilation()->env()->dtrace_method_probes()) { |
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449 __ mov(G2_thread, O0); |
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450 metadata2reg(method()->constant_encoding(), O1); |
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451 __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), relocInfo::runtime_call_type); |
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452 __ delayed()->nop(); |
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453 } |
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454 |
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455 if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) { |
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456 __ mov(I0, O0); // Restore the exception |
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457 } |
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458 |
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459 // dispatch to the unwind logic |
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460 __ call(Runtime1::entry_for(Runtime1::unwind_exception_id), relocInfo::runtime_call_type); |
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461 __ delayed()->nop(); |
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462 |
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463 // Emit the slow path assembly |
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464 if (stub != NULL) { |
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465 stub->emit_code(this); |
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466 } |
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467 |
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468 return offset; |
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469 } |
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470 |
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471 |
| 1204 | 472 int LIR_Assembler::emit_deopt_handler() { |
| 0 | 473 // if the last instruction is a call (typically to do a throw which |
| 474 // is coming at the end after block reordering) the return address | |
| 475 // must still point into the code area in order to avoid assertion | |
| 476 // failures when searching for the corresponding bci => add a nop | |
| 477 // (was bug 5/14/1999 - gri) | |
| 478 __ nop(); | |
| 479 | |
| 480 // generate code for deopt handler | |
| 481 ciMethod* method = compilation()->method(); | |
| 482 address handler_base = __ start_a_stub(deopt_handler_size); | |
| 483 if (handler_base == NULL) { | |
| 484 // not enough space left for the handler | |
| 485 bailout("deopt handler overflow"); | |
| 1204 | 486 return -1; |
| 0 | 487 } |
| 1204 | 488 |
| 0 | 489 int offset = code_offset(); |
| 727 | 490 AddressLiteral deopt_blob(SharedRuntime::deopt_blob()->unpack()); |
| 491 __ JUMP(deopt_blob, G3_scratch, 0); // sethi;jmp | |
| 0 | 492 __ delayed()->nop(); |
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493 guarantee(code_offset() - offset <= deopt_handler_size, "overflow"); |
| 0 | 494 __ end_a_stub(); |
| 1204 | 495 |
| 496 return offset; | |
| 0 | 497 } |
| 498 | |
| 499 | |
| 500 void LIR_Assembler::jobject2reg(jobject o, Register reg) { | |
| 501 if (o == NULL) { | |
| 502 __ set(NULL_WORD, reg); | |
| 503 } else { | |
| 504 int oop_index = __ oop_recorder()->find_index(o); | |
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505 assert(Universe::heap()->is_in_reserved(JNIHandles::resolve(o)), "should be real oop"); |
| 0 | 506 RelocationHolder rspec = oop_Relocation::spec(oop_index); |
| 507 __ set(NULL_WORD, reg, rspec); // Will be set when the nmethod is created | |
| 508 } | |
| 509 } | |
| 510 | |
| 511 | |
| 512 void LIR_Assembler::jobject2reg_with_patching(Register reg, CodeEmitInfo *info) { | |
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513 // Allocate a new index in table to hold the object once it's been patched |
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514 int oop_index = __ oop_recorder()->allocate_oop_index(NULL); |
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515 PatchingStub* patch = new PatchingStub(_masm, PatchingStub::load_mirror_id, oop_index); |
| 0 | 516 |
| 727 | 517 AddressLiteral addrlit(NULL, oop_Relocation::spec(oop_index)); |
| 518 assert(addrlit.rspec().type() == relocInfo::oop_type, "must be an oop reloc"); | |
| 0 | 519 // It may not seem necessary to use a sethi/add pair to load a NULL into dest, but the |
| 520 // NULL will be dynamically patched later and the patched value may be large. We must | |
| 521 // therefore generate the sethi/add as a placeholders | |
| 727 | 522 __ patchable_set(addrlit, reg); |
| 0 | 523 |
| 524 patching_epilog(patch, lir_patch_normal, reg, info); | |
| 525 } | |
| 526 | |
| 527 | |
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528 void LIR_Assembler::metadata2reg(Metadata* o, Register reg) { |
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529 __ set_metadata_constant(o, reg); |
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530 } |
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531 |
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532 void LIR_Assembler::klass2reg_with_patching(Register reg, CodeEmitInfo *info) { |
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533 // Allocate a new index in table to hold the klass once it's been patched |
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534 int index = __ oop_recorder()->allocate_metadata_index(NULL); |
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535 PatchingStub* patch = new PatchingStub(_masm, PatchingStub::load_klass_id, index); |
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536 AddressLiteral addrlit(NULL, metadata_Relocation::spec(index)); |
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537 assert(addrlit.rspec().type() == relocInfo::metadata_type, "must be an metadata reloc"); |
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538 // It may not seem necessary to use a sethi/add pair to load a NULL into dest, but the |
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539 // NULL will be dynamically patched later and the patched value may be large. We must |
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540 // therefore generate the sethi/add as a placeholders |
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541 __ patchable_set(addrlit, reg); |
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542 |
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543 patching_epilog(patch, lir_patch_normal, reg, info); |
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544 } |
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545 |
| 0 | 546 void LIR_Assembler::emit_op3(LIR_Op3* op) { |
| 547 Register Rdividend = op->in_opr1()->as_register(); | |
| 548 Register Rdivisor = noreg; | |
| 549 Register Rscratch = op->in_opr3()->as_register(); | |
| 550 Register Rresult = op->result_opr()->as_register(); | |
| 551 int divisor = -1; | |
| 552 | |
| 553 if (op->in_opr2()->is_register()) { | |
| 554 Rdivisor = op->in_opr2()->as_register(); | |
| 555 } else { | |
| 556 divisor = op->in_opr2()->as_constant_ptr()->as_jint(); | |
| 557 assert(Assembler::is_simm13(divisor), "can only handle simm13"); | |
| 558 } | |
| 559 | |
| 560 assert(Rdividend != Rscratch, ""); | |
| 561 assert(Rdivisor != Rscratch, ""); | |
| 562 assert(op->code() == lir_idiv || op->code() == lir_irem, "Must be irem or idiv"); | |
| 563 | |
| 564 if (Rdivisor == noreg && is_power_of_2(divisor)) { | |
| 565 // convert division by a power of two into some shifts and logical operations | |
| 566 if (op->code() == lir_idiv) { | |
| 567 if (divisor == 2) { | |
| 568 __ srl(Rdividend, 31, Rscratch); | |
| 569 } else { | |
| 570 __ sra(Rdividend, 31, Rscratch); | |
| 571 __ and3(Rscratch, divisor - 1, Rscratch); | |
| 572 } | |
| 573 __ add(Rdividend, Rscratch, Rscratch); | |
| 574 __ sra(Rscratch, log2_intptr(divisor), Rresult); | |
| 575 return; | |
| 576 } else { | |
| 577 if (divisor == 2) { | |
| 578 __ srl(Rdividend, 31, Rscratch); | |
| 579 } else { | |
| 580 __ sra(Rdividend, 31, Rscratch); | |
| 581 __ and3(Rscratch, divisor - 1,Rscratch); | |
| 582 } | |
| 583 __ add(Rdividend, Rscratch, Rscratch); | |
| 584 __ andn(Rscratch, divisor - 1,Rscratch); | |
| 585 __ sub(Rdividend, Rscratch, Rresult); | |
| 586 return; | |
| 587 } | |
| 588 } | |
| 589 | |
| 590 __ sra(Rdividend, 31, Rscratch); | |
| 591 __ wry(Rscratch); | |
| 592 if (!VM_Version::v9_instructions_work()) { | |
| 593 // v9 doesn't require these nops | |
| 594 __ nop(); | |
| 595 __ nop(); | |
| 596 __ nop(); | |
| 597 __ nop(); | |
| 598 } | |
| 599 | |
| 600 add_debug_info_for_div0_here(op->info()); | |
| 601 | |
| 602 if (Rdivisor != noreg) { | |
| 603 __ sdivcc(Rdividend, Rdivisor, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 604 } else { | |
| 605 assert(Assembler::is_simm13(divisor), "can only handle simm13"); | |
| 606 __ sdivcc(Rdividend, divisor, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 607 } | |
| 608 | |
| 609 Label skip; | |
| 610 __ br(Assembler::overflowSet, true, Assembler::pn, skip); | |
| 611 __ delayed()->Assembler::sethi(0x80000000, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 612 __ bind(skip); | |
| 613 | |
| 614 if (op->code() == lir_irem) { | |
| 615 if (Rdivisor != noreg) { | |
| 616 __ smul(Rscratch, Rdivisor, Rscratch); | |
| 617 } else { | |
| 618 __ smul(Rscratch, divisor, Rscratch); | |
| 619 } | |
| 620 __ sub(Rdividend, Rscratch, Rresult); | |
| 621 } | |
| 622 } | |
| 623 | |
| 624 | |
| 625 void LIR_Assembler::emit_opBranch(LIR_OpBranch* op) { | |
| 626 #ifdef ASSERT | |
| 627 assert(op->block() == NULL || op->block()->label() == op->label(), "wrong label"); | |
| 628 if (op->block() != NULL) _branch_target_blocks.append(op->block()); | |
| 629 if (op->ublock() != NULL) _branch_target_blocks.append(op->ublock()); | |
| 630 #endif | |
| 631 assert(op->info() == NULL, "shouldn't have CodeEmitInfo"); | |
| 632 | |
| 633 if (op->cond() == lir_cond_always) { | |
| 634 __ br(Assembler::always, false, Assembler::pt, *(op->label())); | |
| 635 } else if (op->code() == lir_cond_float_branch) { | |
| 636 assert(op->ublock() != NULL, "must have unordered successor"); | |
| 637 bool is_unordered = (op->ublock() == op->block()); | |
| 638 Assembler::Condition acond; | |
| 639 switch (op->cond()) { | |
| 640 case lir_cond_equal: acond = Assembler::f_equal; break; | |
| 641 case lir_cond_notEqual: acond = Assembler::f_notEqual; break; | |
| 642 case lir_cond_less: acond = (is_unordered ? Assembler::f_unorderedOrLess : Assembler::f_less); break; | |
| 643 case lir_cond_greater: acond = (is_unordered ? Assembler::f_unorderedOrGreater : Assembler::f_greater); break; | |
| 644 case lir_cond_lessEqual: acond = (is_unordered ? Assembler::f_unorderedOrLessOrEqual : Assembler::f_lessOrEqual); break; | |
| 645 case lir_cond_greaterEqual: acond = (is_unordered ? Assembler::f_unorderedOrGreaterOrEqual: Assembler::f_greaterOrEqual); break; | |
| 646 default : ShouldNotReachHere(); | |
| 647 }; | |
| 648 | |
| 649 if (!VM_Version::v9_instructions_work()) { | |
| 650 __ nop(); | |
| 651 } | |
| 652 __ fb( acond, false, Assembler::pn, *(op->label())); | |
| 653 } else { | |
| 654 assert (op->code() == lir_branch, "just checking"); | |
| 655 | |
| 656 Assembler::Condition acond; | |
| 657 switch (op->cond()) { | |
| 658 case lir_cond_equal: acond = Assembler::equal; break; | |
| 659 case lir_cond_notEqual: acond = Assembler::notEqual; break; | |
| 660 case lir_cond_less: acond = Assembler::less; break; | |
| 661 case lir_cond_lessEqual: acond = Assembler::lessEqual; break; | |
| 662 case lir_cond_greaterEqual: acond = Assembler::greaterEqual; break; | |
| 663 case lir_cond_greater: acond = Assembler::greater; break; | |
| 664 case lir_cond_aboveEqual: acond = Assembler::greaterEqualUnsigned; break; | |
| 665 case lir_cond_belowEqual: acond = Assembler::lessEqualUnsigned; break; | |
| 666 default: ShouldNotReachHere(); | |
| 667 }; | |
| 668 | |
| 669 // sparc has different condition codes for testing 32-bit | |
| 670 // vs. 64-bit values. We could always test xcc is we could | |
| 671 // guarantee that 32-bit loads always sign extended but that isn't | |
| 672 // true and since sign extension isn't free, it would impose a | |
| 673 // slight cost. | |
| 674 #ifdef _LP64 | |
| 675 if (op->type() == T_INT) { | |
| 676 __ br(acond, false, Assembler::pn, *(op->label())); | |
| 677 } else | |
| 678 #endif | |
| 679 __ brx(acond, false, Assembler::pn, *(op->label())); | |
| 680 } | |
| 681 // The peephole pass fills the delay slot | |
| 682 } | |
| 683 | |
| 684 | |
| 685 void LIR_Assembler::emit_opConvert(LIR_OpConvert* op) { | |
| 686 Bytecodes::Code code = op->bytecode(); | |
| 687 LIR_Opr dst = op->result_opr(); | |
| 688 | |
| 689 switch(code) { | |
| 690 case Bytecodes::_i2l: { | |
| 691 Register rlo = dst->as_register_lo(); | |
| 692 Register rhi = dst->as_register_hi(); | |
| 693 Register rval = op->in_opr()->as_register(); | |
| 694 #ifdef _LP64 | |
| 695 __ sra(rval, 0, rlo); | |
| 696 #else | |
| 697 __ mov(rval, rlo); | |
| 698 __ sra(rval, BitsPerInt-1, rhi); | |
| 699 #endif | |
| 700 break; | |
| 701 } | |
| 702 case Bytecodes::_i2d: | |
| 703 case Bytecodes::_i2f: { | |
| 704 bool is_double = (code == Bytecodes::_i2d); | |
| 705 FloatRegister rdst = is_double ? dst->as_double_reg() : dst->as_float_reg(); | |
| 706 FloatRegisterImpl::Width w = is_double ? FloatRegisterImpl::D : FloatRegisterImpl::S; | |
| 707 FloatRegister rsrc = op->in_opr()->as_float_reg(); | |
| 708 if (rsrc != rdst) { | |
| 709 __ fmov(FloatRegisterImpl::S, rsrc, rdst); | |
| 710 } | |
| 711 __ fitof(w, rdst, rdst); | |
| 712 break; | |
| 713 } | |
| 714 case Bytecodes::_f2i:{ | |
| 715 FloatRegister rsrc = op->in_opr()->as_float_reg(); | |
| 716 Address addr = frame_map()->address_for_slot(dst->single_stack_ix()); | |
| 717 Label L; | |
| 718 // result must be 0 if value is NaN; test by comparing value to itself | |
| 719 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, rsrc, rsrc); | |
| 720 if (!VM_Version::v9_instructions_work()) { | |
| 721 __ nop(); | |
| 722 } | |
| 723 __ fb(Assembler::f_unordered, true, Assembler::pn, L); | |
| 724 __ delayed()->st(G0, addr); // annuled if contents of rsrc is not NaN | |
| 725 __ ftoi(FloatRegisterImpl::S, rsrc, rsrc); | |
| 726 // move integer result from float register to int register | |
| 727 __ stf(FloatRegisterImpl::S, rsrc, addr.base(), addr.disp()); | |
| 728 __ bind (L); | |
| 729 break; | |
| 730 } | |
| 731 case Bytecodes::_l2i: { | |
| 732 Register rlo = op->in_opr()->as_register_lo(); | |
| 733 Register rhi = op->in_opr()->as_register_hi(); | |
| 734 Register rdst = dst->as_register(); | |
| 735 #ifdef _LP64 | |
| 736 __ sra(rlo, 0, rdst); | |
| 737 #else | |
| 738 __ mov(rlo, rdst); | |
| 739 #endif | |
| 740 break; | |
| 741 } | |
| 742 case Bytecodes::_d2f: | |
| 743 case Bytecodes::_f2d: { | |
| 744 bool is_double = (code == Bytecodes::_f2d); | |
| 745 assert((!is_double && dst->is_single_fpu()) || (is_double && dst->is_double_fpu()), "check"); | |
| 746 LIR_Opr val = op->in_opr(); | |
| 747 FloatRegister rval = (code == Bytecodes::_d2f) ? val->as_double_reg() : val->as_float_reg(); | |
| 748 FloatRegister rdst = is_double ? dst->as_double_reg() : dst->as_float_reg(); | |
| 749 FloatRegisterImpl::Width vw = is_double ? FloatRegisterImpl::S : FloatRegisterImpl::D; | |
| 750 FloatRegisterImpl::Width dw = is_double ? FloatRegisterImpl::D : FloatRegisterImpl::S; | |
| 751 __ ftof(vw, dw, rval, rdst); | |
| 752 break; | |
| 753 } | |
| 754 case Bytecodes::_i2s: | |
| 755 case Bytecodes::_i2b: { | |
| 756 Register rval = op->in_opr()->as_register(); | |
| 757 Register rdst = dst->as_register(); | |
| 758 int shift = (code == Bytecodes::_i2b) ? (BitsPerInt - T_BYTE_aelem_bytes * BitsPerByte) : (BitsPerInt - BitsPerShort); | |
| 759 __ sll (rval, shift, rdst); | |
| 760 __ sra (rdst, shift, rdst); | |
| 761 break; | |
| 762 } | |
| 763 case Bytecodes::_i2c: { | |
| 764 Register rval = op->in_opr()->as_register(); | |
| 765 Register rdst = dst->as_register(); | |
| 766 int shift = BitsPerInt - T_CHAR_aelem_bytes * BitsPerByte; | |
| 767 __ sll (rval, shift, rdst); | |
| 768 __ srl (rdst, shift, rdst); | |
| 769 break; | |
| 770 } | |
| 771 | |
| 772 default: ShouldNotReachHere(); | |
| 773 } | |
| 774 } | |
| 775 | |
| 776 | |
| 777 void LIR_Assembler::align_call(LIR_Code) { | |
| 778 // do nothing since all instructions are word aligned on sparc | |
| 779 } | |
| 780 | |
| 781 | |
| 1295 | 782 void LIR_Assembler::call(LIR_OpJavaCall* op, relocInfo::relocType rtype) { |
| 783 __ call(op->addr(), rtype); | |
| 1564 | 784 // The peephole pass fills the delay slot, add_call_info is done in |
| 785 // LIR_Assembler::emit_delay. | |
| 0 | 786 } |
| 787 | |
| 788 | |
| 1295 | 789 void LIR_Assembler::ic_call(LIR_OpJavaCall* op) { |
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790 __ ic_call(op->addr(), false); |
| 1564 | 791 // The peephole pass fills the delay slot, add_call_info is done in |
| 792 // LIR_Assembler::emit_delay. | |
| 0 | 793 } |
| 794 | |
| 795 | |
| 1295 | 796 void LIR_Assembler::vtable_call(LIR_OpJavaCall* op) { |
| 797 add_debug_info_for_null_check_here(op->info()); | |
| 2002 | 798 __ load_klass(O0, G3_scratch); |
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799 if (Assembler::is_simm13(op->vtable_offset())) { |
| 1295 | 800 __ ld_ptr(G3_scratch, op->vtable_offset(), G5_method); |
| 0 | 801 } else { |
| 802 // This will generate 2 instructions | |
| 1295 | 803 __ set(op->vtable_offset(), G5_method); |
| 0 | 804 // ld_ptr, set_hi, set |
| 805 __ ld_ptr(G3_scratch, G5_method, G5_method); | |
| 806 } | |
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807 __ ld_ptr(G5_method, Method::from_compiled_offset(), G3_scratch); |
| 0 | 808 __ callr(G3_scratch, G0); |
| 809 // the peephole pass fills the delay slot | |
| 810 } | |
| 811 | |
| 2002 | 812 int LIR_Assembler::store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide, bool unaligned) { |
| 0 | 813 int store_offset; |
| 814 if (!Assembler::is_simm13(offset + (type == T_LONG) ? wordSize : 0)) { | |
| 815 assert(!unaligned, "can't handle this"); | |
| 816 // for offsets larger than a simm13 we setup the offset in O7 | |
| 727 | 817 __ set(offset, O7); |
| 2002 | 818 store_offset = store(from_reg, base, O7, type, wide); |
| 0 | 819 } else { |
| 2002 | 820 if (type == T_ARRAY || type == T_OBJECT) { |
| 821 __ verify_oop(from_reg->as_register()); | |
| 822 } | |
| 0 | 823 store_offset = code_offset(); |
| 824 switch (type) { | |
| 825 case T_BOOLEAN: // fall through | |
| 826 case T_BYTE : __ stb(from_reg->as_register(), base, offset); break; | |
| 827 case T_CHAR : __ sth(from_reg->as_register(), base, offset); break; | |
| 828 case T_SHORT : __ sth(from_reg->as_register(), base, offset); break; | |
| 829 case T_INT : __ stw(from_reg->as_register(), base, offset); break; | |
| 830 case T_LONG : | |
| 831 #ifdef _LP64 | |
| 832 if (unaligned || PatchALot) { | |
| 833 __ srax(from_reg->as_register_lo(), 32, O7); | |
| 834 __ stw(from_reg->as_register_lo(), base, offset + lo_word_offset_in_bytes); | |
| 835 __ stw(O7, base, offset + hi_word_offset_in_bytes); | |
| 836 } else { | |
| 837 __ stx(from_reg->as_register_lo(), base, offset); | |
| 838 } | |
| 839 #else | |
| 840 assert(Assembler::is_simm13(offset + 4), "must be"); | |
| 841 __ stw(from_reg->as_register_lo(), base, offset + lo_word_offset_in_bytes); | |
| 842 __ stw(from_reg->as_register_hi(), base, offset + hi_word_offset_in_bytes); | |
| 843 #endif | |
| 844 break; | |
| 2002 | 845 case T_ADDRESS: |
| 846 __ st_ptr(from_reg->as_register(), base, offset); | |
| 847 break; | |
| 0 | 848 case T_ARRAY : // fall through |
| 2002 | 849 case T_OBJECT: |
| 850 { | |
| 851 if (UseCompressedOops && !wide) { | |
| 852 __ encode_heap_oop(from_reg->as_register(), G3_scratch); | |
| 853 store_offset = code_offset(); | |
| 854 __ stw(G3_scratch, base, offset); | |
| 855 } else { | |
| 856 __ st_ptr(from_reg->as_register(), base, offset); | |
| 857 } | |
| 858 break; | |
| 859 } | |
| 860 | |
| 0 | 861 case T_FLOAT : __ stf(FloatRegisterImpl::S, from_reg->as_float_reg(), base, offset); break; |
| 862 case T_DOUBLE: | |
| 863 { | |
| 864 FloatRegister reg = from_reg->as_double_reg(); | |
| 865 // split unaligned stores | |
| 866 if (unaligned || PatchALot) { | |
| 867 assert(Assembler::is_simm13(offset + 4), "must be"); | |
| 868 __ stf(FloatRegisterImpl::S, reg->successor(), base, offset + 4); | |
| 869 __ stf(FloatRegisterImpl::S, reg, base, offset); | |
| 870 } else { | |
| 871 __ stf(FloatRegisterImpl::D, reg, base, offset); | |
| 872 } | |
| 873 break; | |
| 874 } | |
| 875 default : ShouldNotReachHere(); | |
| 876 } | |
| 877 } | |
| 878 return store_offset; | |
| 879 } | |
| 880 | |
| 881 | |
| 2002 | 882 int LIR_Assembler::store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide) { |
| 883 if (type == T_ARRAY || type == T_OBJECT) { | |
| 884 __ verify_oop(from_reg->as_register()); | |
| 885 } | |
| 0 | 886 int store_offset = code_offset(); |
| 887 switch (type) { | |
| 888 case T_BOOLEAN: // fall through | |
| 889 case T_BYTE : __ stb(from_reg->as_register(), base, disp); break; | |
| 890 case T_CHAR : __ sth(from_reg->as_register(), base, disp); break; | |
| 891 case T_SHORT : __ sth(from_reg->as_register(), base, disp); break; | |
| 892 case T_INT : __ stw(from_reg->as_register(), base, disp); break; | |
| 893 case T_LONG : | |
| 894 #ifdef _LP64 | |
| 895 __ stx(from_reg->as_register_lo(), base, disp); | |
| 896 #else | |
| 897 assert(from_reg->as_register_hi()->successor() == from_reg->as_register_lo(), "must match"); | |
| 898 __ std(from_reg->as_register_hi(), base, disp); | |
| 899 #endif | |
| 900 break; | |
| 2002 | 901 case T_ADDRESS: |
| 902 __ st_ptr(from_reg->as_register(), base, disp); | |
| 903 break; | |
| 0 | 904 case T_ARRAY : // fall through |
| 2002 | 905 case T_OBJECT: |
| 906 { | |
| 907 if (UseCompressedOops && !wide) { | |
| 908 __ encode_heap_oop(from_reg->as_register(), G3_scratch); | |
| 909 store_offset = code_offset(); | |
| 910 __ stw(G3_scratch, base, disp); | |
| 911 } else { | |
| 912 __ st_ptr(from_reg->as_register(), base, disp); | |
| 913 } | |
| 914 break; | |
| 915 } | |
| 0 | 916 case T_FLOAT : __ stf(FloatRegisterImpl::S, from_reg->as_float_reg(), base, disp); break; |
| 917 case T_DOUBLE: __ stf(FloatRegisterImpl::D, from_reg->as_double_reg(), base, disp); break; | |
| 918 default : ShouldNotReachHere(); | |
| 919 } | |
| 920 return store_offset; | |
| 921 } | |
| 922 | |
| 923 | |
| 2002 | 924 int LIR_Assembler::load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide, bool unaligned) { |
| 0 | 925 int load_offset; |
| 926 if (!Assembler::is_simm13(offset + (type == T_LONG) ? wordSize : 0)) { | |
| 927 assert(base != O7, "destroying register"); | |
| 928 assert(!unaligned, "can't handle this"); | |
| 929 // for offsets larger than a simm13 we setup the offset in O7 | |
| 727 | 930 __ set(offset, O7); |
| 2002 | 931 load_offset = load(base, O7, to_reg, type, wide); |
| 0 | 932 } else { |
| 933 load_offset = code_offset(); | |
| 934 switch(type) { | |
| 935 case T_BOOLEAN: // fall through | |
| 936 case T_BYTE : __ ldsb(base, offset, to_reg->as_register()); break; | |
| 937 case T_CHAR : __ lduh(base, offset, to_reg->as_register()); break; | |
| 938 case T_SHORT : __ ldsh(base, offset, to_reg->as_register()); break; | |
| 939 case T_INT : __ ld(base, offset, to_reg->as_register()); break; | |
| 940 case T_LONG : | |
| 941 if (!unaligned) { | |
| 942 #ifdef _LP64 | |
| 943 __ ldx(base, offset, to_reg->as_register_lo()); | |
| 944 #else | |
| 945 assert(to_reg->as_register_hi()->successor() == to_reg->as_register_lo(), | |
| 946 "must be sequential"); | |
| 947 __ ldd(base, offset, to_reg->as_register_hi()); | |
| 948 #endif | |
| 949 } else { | |
| 950 #ifdef _LP64 | |
| 951 assert(base != to_reg->as_register_lo(), "can't handle this"); | |
| 1060 | 952 assert(O7 != to_reg->as_register_lo(), "can't handle this"); |
| 0 | 953 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_lo()); |
| 1060 | 954 __ lduw(base, offset + lo_word_offset_in_bytes, O7); // in case O7 is base or offset, use it last |
| 0 | 955 __ sllx(to_reg->as_register_lo(), 32, to_reg->as_register_lo()); |
| 1060 | 956 __ or3(to_reg->as_register_lo(), O7, to_reg->as_register_lo()); |
| 0 | 957 #else |
| 958 if (base == to_reg->as_register_lo()) { | |
| 959 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_hi()); | |
| 960 __ ld(base, offset + lo_word_offset_in_bytes, to_reg->as_register_lo()); | |
| 961 } else { | |
| 962 __ ld(base, offset + lo_word_offset_in_bytes, to_reg->as_register_lo()); | |
| 963 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_hi()); | |
| 964 } | |
| 965 #endif | |
| 966 } | |
| 967 break; | |
| 2002 | 968 case T_ADDRESS: __ ld_ptr(base, offset, to_reg->as_register()); break; |
| 0 | 969 case T_ARRAY : // fall through |
| 2002 | 970 case T_OBJECT: |
| 971 { | |
| 972 if (UseCompressedOops && !wide) { | |
| 973 __ lduw(base, offset, to_reg->as_register()); | |
| 974 __ decode_heap_oop(to_reg->as_register()); | |
| 975 } else { | |
| 976 __ ld_ptr(base, offset, to_reg->as_register()); | |
| 977 } | |
| 978 break; | |
| 979 } | |
| 0 | 980 case T_FLOAT: __ ldf(FloatRegisterImpl::S, base, offset, to_reg->as_float_reg()); break; |
| 981 case T_DOUBLE: | |
| 982 { | |
| 983 FloatRegister reg = to_reg->as_double_reg(); | |
| 984 // split unaligned loads | |
| 985 if (unaligned || PatchALot) { | |
| 1060 | 986 __ ldf(FloatRegisterImpl::S, base, offset + 4, reg->successor()); |
| 987 __ ldf(FloatRegisterImpl::S, base, offset, reg); | |
| 0 | 988 } else { |
| 989 __ ldf(FloatRegisterImpl::D, base, offset, to_reg->as_double_reg()); | |
| 990 } | |
| 991 break; | |
| 992 } | |
| 993 default : ShouldNotReachHere(); | |
| 994 } | |
| 2002 | 995 if (type == T_ARRAY || type == T_OBJECT) { |
| 996 __ verify_oop(to_reg->as_register()); | |
| 997 } | |
| 0 | 998 } |
| 999 return load_offset; | |
| 1000 } | |
| 1001 | |
| 1002 | |
| 2002 | 1003 int LIR_Assembler::load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide) { |
| 0 | 1004 int load_offset = code_offset(); |
| 1005 switch(type) { | |
| 1006 case T_BOOLEAN: // fall through | |
| 2002 | 1007 case T_BYTE : __ ldsb(base, disp, to_reg->as_register()); break; |
| 1008 case T_CHAR : __ lduh(base, disp, to_reg->as_register()); break; | |
| 1009 case T_SHORT : __ ldsh(base, disp, to_reg->as_register()); break; | |
| 1010 case T_INT : __ ld(base, disp, to_reg->as_register()); break; | |
| 1011 case T_ADDRESS: __ ld_ptr(base, disp, to_reg->as_register()); break; | |
| 0 | 1012 case T_ARRAY : // fall through |
| 2002 | 1013 case T_OBJECT: |
| 1014 { | |
| 1015 if (UseCompressedOops && !wide) { | |
| 1016 __ lduw(base, disp, to_reg->as_register()); | |
| 1017 __ decode_heap_oop(to_reg->as_register()); | |
| 1018 } else { | |
| 1019 __ ld_ptr(base, disp, to_reg->as_register()); | |
| 1020 } | |
| 1021 break; | |
| 1022 } | |
| 0 | 1023 case T_FLOAT: __ ldf(FloatRegisterImpl::S, base, disp, to_reg->as_float_reg()); break; |
| 1024 case T_DOUBLE: __ ldf(FloatRegisterImpl::D, base, disp, to_reg->as_double_reg()); break; | |
| 1025 case T_LONG : | |
| 1026 #ifdef _LP64 | |
| 1027 __ ldx(base, disp, to_reg->as_register_lo()); | |
| 1028 #else | |
| 1029 assert(to_reg->as_register_hi()->successor() == to_reg->as_register_lo(), | |
| 1030 "must be sequential"); | |
| 1031 __ ldd(base, disp, to_reg->as_register_hi()); | |
| 1032 #endif | |
| 1033 break; | |
| 1034 default : ShouldNotReachHere(); | |
| 1035 } | |
| 2002 | 1036 if (type == T_ARRAY || type == T_OBJECT) { |
| 1037 __ verify_oop(to_reg->as_register()); | |
| 1038 } | |
| 0 | 1039 return load_offset; |
| 1040 } | |
| 1041 | |
| 1042 void LIR_Assembler::const2stack(LIR_Opr src, LIR_Opr dest) { | |
| 1043 LIR_Const* c = src->as_constant_ptr(); | |
| 1044 switch (c->type()) { | |
| 1045 case T_INT: | |
| 2002 | 1046 case T_FLOAT: { |
| 1047 Register src_reg = O7; | |
| 1048 int value = c->as_jint_bits(); | |
| 1049 if (value == 0) { | |
| 1050 src_reg = G0; | |
| 1051 } else { | |
| 1052 __ set(value, O7); | |
| 1053 } | |
| 1054 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1055 __ stw(src_reg, addr.base(), addr.disp()); | |
| 1056 break; | |
| 1057 } | |
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1058 case T_ADDRESS: { |
| 0 | 1059 Register src_reg = O7; |
| 1060 int value = c->as_jint_bits(); | |
| 1061 if (value == 0) { | |
| 1062 src_reg = G0; | |
| 1063 } else { | |
| 1064 __ set(value, O7); | |
| 1065 } | |
| 1066 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 2002 | 1067 __ st_ptr(src_reg, addr.base(), addr.disp()); |
| 0 | 1068 break; |
| 1069 } | |
| 1070 case T_OBJECT: { | |
| 1071 Register src_reg = O7; | |
| 1072 jobject2reg(c->as_jobject(), src_reg); | |
| 1073 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1074 __ st_ptr(src_reg, addr.base(), addr.disp()); | |
| 1075 break; | |
| 1076 } | |
| 1077 case T_LONG: | |
| 1078 case T_DOUBLE: { | |
| 1079 Address addr = frame_map()->address_for_double_slot(dest->double_stack_ix()); | |
| 1080 | |
| 1081 Register tmp = O7; | |
| 1082 int value_lo = c->as_jint_lo_bits(); | |
| 1083 if (value_lo == 0) { | |
| 1084 tmp = G0; | |
| 1085 } else { | |
| 1086 __ set(value_lo, O7); | |
| 1087 } | |
| 1088 __ stw(tmp, addr.base(), addr.disp() + lo_word_offset_in_bytes); | |
| 1089 int value_hi = c->as_jint_hi_bits(); | |
| 1090 if (value_hi == 0) { | |
| 1091 tmp = G0; | |
| 1092 } else { | |
| 1093 __ set(value_hi, O7); | |
| 1094 } | |
| 1095 __ stw(tmp, addr.base(), addr.disp() + hi_word_offset_in_bytes); | |
| 1096 break; | |
| 1097 } | |
| 1098 default: | |
| 1099 Unimplemented(); | |
| 1100 } | |
| 1101 } | |
| 1102 | |
| 1103 | |
| 2002 | 1104 void LIR_Assembler::const2mem(LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info, bool wide) { |
| 0 | 1105 LIR_Const* c = src->as_constant_ptr(); |
| 1106 LIR_Address* addr = dest->as_address_ptr(); | |
| 1107 Register base = addr->base()->as_pointer_register(); | |
| 2002 | 1108 int offset = -1; |
| 1109 | |
| 0 | 1110 switch (c->type()) { |
| 1111 case T_INT: | |
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1112 case T_FLOAT: |
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1113 case T_ADDRESS: { |
| 0 | 1114 LIR_Opr tmp = FrameMap::O7_opr; |
| 1115 int value = c->as_jint_bits(); | |
| 1116 if (value == 0) { | |
| 1117 tmp = FrameMap::G0_opr; | |
| 1118 } else if (Assembler::is_simm13(value)) { | |
| 1119 __ set(value, O7); | |
| 1120 } | |
| 1121 if (addr->index()->is_valid()) { | |
| 1122 assert(addr->disp() == 0, "must be zero"); | |
| 2002 | 1123 offset = store(tmp, base, addr->index()->as_pointer_register(), type, wide); |
| 0 | 1124 } else { |
| 1125 assert(Assembler::is_simm13(addr->disp()), "can't handle larger addresses"); | |
| 2002 | 1126 offset = store(tmp, base, addr->disp(), type, wide, false); |
| 0 | 1127 } |
| 1128 break; | |
| 1129 } | |
| 1130 case T_LONG: | |
| 1131 case T_DOUBLE: { | |
| 1132 assert(!addr->index()->is_valid(), "can't handle reg reg address here"); | |
| 1133 assert(Assembler::is_simm13(addr->disp()) && | |
| 1134 Assembler::is_simm13(addr->disp() + 4), "can't handle larger addresses"); | |
| 1135 | |
| 2002 | 1136 LIR_Opr tmp = FrameMap::O7_opr; |
| 0 | 1137 int value_lo = c->as_jint_lo_bits(); |
| 1138 if (value_lo == 0) { | |
| 2002 | 1139 tmp = FrameMap::G0_opr; |
| 0 | 1140 } else { |
| 1141 __ set(value_lo, O7); | |
| 1142 } | |
| 2002 | 1143 offset = store(tmp, base, addr->disp() + lo_word_offset_in_bytes, T_INT, wide, false); |
| 0 | 1144 int value_hi = c->as_jint_hi_bits(); |
| 1145 if (value_hi == 0) { | |
| 2002 | 1146 tmp = FrameMap::G0_opr; |
| 0 | 1147 } else { |
| 1148 __ set(value_hi, O7); | |
| 1149 } | |
| 4052 | 1150 store(tmp, base, addr->disp() + hi_word_offset_in_bytes, T_INT, wide, false); |
| 0 | 1151 break; |
| 1152 } | |
| 1153 case T_OBJECT: { | |
| 1154 jobject obj = c->as_jobject(); | |
| 1155 LIR_Opr tmp; | |
| 1156 if (obj == NULL) { | |
| 1157 tmp = FrameMap::G0_opr; | |
| 1158 } else { | |
| 1159 tmp = FrameMap::O7_opr; | |
| 1160 jobject2reg(c->as_jobject(), O7); | |
| 1161 } | |
| 1162 // handle either reg+reg or reg+disp address | |
| 1163 if (addr->index()->is_valid()) { | |
| 1164 assert(addr->disp() == 0, "must be zero"); | |
| 2002 | 1165 offset = store(tmp, base, addr->index()->as_pointer_register(), type, wide); |
| 0 | 1166 } else { |
| 1167 assert(Assembler::is_simm13(addr->disp()), "can't handle larger addresses"); | |
| 2002 | 1168 offset = store(tmp, base, addr->disp(), type, wide, false); |
| 0 | 1169 } |
| 1170 | |
| 1171 break; | |
| 1172 } | |
| 1173 default: | |
| 1174 Unimplemented(); | |
| 1175 } | |
| 2002 | 1176 if (info != NULL) { |
| 1177 assert(offset != -1, "offset should've been set"); | |
| 1178 add_debug_info_for_null_check(offset, info); | |
| 1179 } | |
| 0 | 1180 } |
| 1181 | |
| 1182 | |
| 1183 void LIR_Assembler::const2reg(LIR_Opr src, LIR_Opr dest, LIR_PatchCode patch_code, CodeEmitInfo* info) { | |
| 1184 LIR_Const* c = src->as_constant_ptr(); | |
| 1185 LIR_Opr to_reg = dest; | |
| 1186 | |
| 1187 switch (c->type()) { | |
| 1188 case T_INT: | |
|
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|
1189 case T_ADDRESS: |
| 0 | 1190 { |
| 1191 jint con = c->as_jint(); | |
| 1192 if (to_reg->is_single_cpu()) { | |
| 1193 assert(patch_code == lir_patch_none, "no patching handled here"); | |
| 1194 __ set(con, to_reg->as_register()); | |
| 1195 } else { | |
| 1196 ShouldNotReachHere(); | |
| 1197 assert(to_reg->is_single_fpu(), "wrong register kind"); | |
| 1198 | |
| 1199 __ set(con, O7); | |
| 727 | 1200 Address temp_slot(SP, (frame::register_save_words * wordSize) + STACK_BIAS); |
| 0 | 1201 __ st(O7, temp_slot); |
| 1202 __ ldf(FloatRegisterImpl::S, temp_slot, to_reg->as_float_reg()); | |
| 1203 } | |
| 1204 } | |
| 1205 break; | |
| 1206 | |
| 1207 case T_LONG: | |
| 1208 { | |
| 1209 jlong con = c->as_jlong(); | |
| 1210 | |
| 1211 if (to_reg->is_double_cpu()) { | |
| 1212 #ifdef _LP64 | |
| 1213 __ set(con, to_reg->as_register_lo()); | |
| 1214 #else | |
| 1215 __ set(low(con), to_reg->as_register_lo()); | |
| 1216 __ set(high(con), to_reg->as_register_hi()); | |
| 1217 #endif | |
| 1218 #ifdef _LP64 | |
| 1219 } else if (to_reg->is_single_cpu()) { | |
| 1220 __ set(con, to_reg->as_register()); | |
| 1221 #endif | |
| 1222 } else { | |
| 1223 ShouldNotReachHere(); | |
| 1224 assert(to_reg->is_double_fpu(), "wrong register kind"); | |
| 727 | 1225 Address temp_slot_lo(SP, ((frame::register_save_words ) * wordSize) + STACK_BIAS); |
| 1226 Address temp_slot_hi(SP, ((frame::register_save_words) * wordSize) + (longSize/2) + STACK_BIAS); | |
| 0 | 1227 __ set(low(con), O7); |
| 1228 __ st(O7, temp_slot_lo); | |
| 1229 __ set(high(con), O7); | |
| 1230 __ st(O7, temp_slot_hi); | |
| 1231 __ ldf(FloatRegisterImpl::D, temp_slot_lo, to_reg->as_double_reg()); | |
| 1232 } | |
| 1233 } | |
| 1234 break; | |
| 1235 | |
| 1236 case T_OBJECT: | |
| 1237 { | |
| 1238 if (patch_code == lir_patch_none) { | |
| 1239 jobject2reg(c->as_jobject(), to_reg->as_register()); | |
| 1240 } else { | |
| 1241 jobject2reg_with_patching(to_reg->as_register(), info); | |
| 1242 } | |
| 1243 } | |
| 1244 break; | |
| 1245 | |
|
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1246 case T_METADATA: |
|
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1247 { |
|
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|
1248 if (patch_code == lir_patch_none) { |
|
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|
1249 metadata2reg(c->as_metadata(), to_reg->as_register()); |
|
da91efe96a93
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1250 } else { |
|
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1251 klass2reg_with_patching(to_reg->as_register(), info); |
|
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1252 } |
|
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|
1253 } |
|
da91efe96a93
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|
1254 break; |
|
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|
1255 |
| 0 | 1256 case T_FLOAT: |
| 1257 { | |
| 1258 address const_addr = __ float_constant(c->as_jfloat()); | |
| 1259 if (const_addr == NULL) { | |
| 1260 bailout("const section overflow"); | |
| 1261 break; | |
| 1262 } | |
| 1263 RelocationHolder rspec = internal_word_Relocation::spec(const_addr); | |
| 727 | 1264 AddressLiteral const_addrlit(const_addr, rspec); |
| 0 | 1265 if (to_reg->is_single_fpu()) { |
| 727 | 1266 __ patchable_sethi(const_addrlit, O7); |
| 0 | 1267 __ relocate(rspec); |
| 727 | 1268 __ ldf(FloatRegisterImpl::S, O7, const_addrlit.low10(), to_reg->as_float_reg()); |
| 0 | 1269 |
| 1270 } else { | |
| 1271 assert(to_reg->is_single_cpu(), "Must be a cpu register."); | |
| 1272 | |
| 727 | 1273 __ set(const_addrlit, O7); |
| 2002 | 1274 __ ld(O7, 0, to_reg->as_register()); |
| 0 | 1275 } |
| 1276 } | |
| 1277 break; | |
| 1278 | |
| 1279 case T_DOUBLE: | |
| 1280 { | |
| 1281 address const_addr = __ double_constant(c->as_jdouble()); | |
| 1282 if (const_addr == NULL) { | |
| 1283 bailout("const section overflow"); | |
| 1284 break; | |
| 1285 } | |
| 1286 RelocationHolder rspec = internal_word_Relocation::spec(const_addr); | |
| 1287 | |
| 1288 if (to_reg->is_double_fpu()) { | |
| 727 | 1289 AddressLiteral const_addrlit(const_addr, rspec); |
| 1290 __ patchable_sethi(const_addrlit, O7); | |
| 0 | 1291 __ relocate(rspec); |
| 727 | 1292 __ ldf (FloatRegisterImpl::D, O7, const_addrlit.low10(), to_reg->as_double_reg()); |
| 0 | 1293 } else { |
| 1294 assert(to_reg->is_double_cpu(), "Must be a long register."); | |
| 1295 #ifdef _LP64 | |
| 1296 __ set(jlong_cast(c->as_jdouble()), to_reg->as_register_lo()); | |
| 1297 #else | |
| 1298 __ set(low(jlong_cast(c->as_jdouble())), to_reg->as_register_lo()); | |
| 1299 __ set(high(jlong_cast(c->as_jdouble())), to_reg->as_register_hi()); | |
| 1300 #endif | |
| 1301 } | |
| 1302 | |
| 1303 } | |
| 1304 break; | |
| 1305 | |
| 1306 default: | |
| 1307 ShouldNotReachHere(); | |
| 1308 } | |
| 1309 } | |
| 1310 | |
| 1311 Address LIR_Assembler::as_Address(LIR_Address* addr) { | |
| 1312 Register reg = addr->base()->as_register(); | |
| 727 | 1313 return Address(reg, addr->disp()); |
| 0 | 1314 } |
| 1315 | |
| 1316 | |
| 1317 void LIR_Assembler::stack2stack(LIR_Opr src, LIR_Opr dest, BasicType type) { | |
| 1318 switch (type) { | |
| 1319 case T_INT: | |
| 1320 case T_FLOAT: { | |
| 1321 Register tmp = O7; | |
| 1322 Address from = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1323 Address to = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1324 __ lduw(from.base(), from.disp(), tmp); | |
| 1325 __ stw(tmp, to.base(), to.disp()); | |
| 1326 break; | |
| 1327 } | |
| 1328 case T_OBJECT: { | |
| 1329 Register tmp = O7; | |
| 1330 Address from = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1331 Address to = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1332 __ ld_ptr(from.base(), from.disp(), tmp); | |
| 1333 __ st_ptr(tmp, to.base(), to.disp()); | |
| 1334 break; | |
| 1335 } | |
| 1336 case T_LONG: | |
| 1337 case T_DOUBLE: { | |
| 1338 Register tmp = O7; | |
| 1339 Address from = frame_map()->address_for_double_slot(src->double_stack_ix()); | |
| 1340 Address to = frame_map()->address_for_double_slot(dest->double_stack_ix()); | |
| 1341 __ lduw(from.base(), from.disp(), tmp); | |
| 1342 __ stw(tmp, to.base(), to.disp()); | |
| 1343 __ lduw(from.base(), from.disp() + 4, tmp); | |
| 1344 __ stw(tmp, to.base(), to.disp() + 4); | |
| 1345 break; | |
| 1346 } | |
| 1347 | |
| 1348 default: | |
| 1349 ShouldNotReachHere(); | |
| 1350 } | |
| 1351 } | |
| 1352 | |
| 1353 | |
| 1354 Address LIR_Assembler::as_Address_hi(LIR_Address* addr) { | |
| 1355 Address base = as_Address(addr); | |
| 727 | 1356 return Address(base.base(), base.disp() + hi_word_offset_in_bytes); |
| 0 | 1357 } |
| 1358 | |
| 1359 | |
| 1360 Address LIR_Assembler::as_Address_lo(LIR_Address* addr) { | |
| 1361 Address base = as_Address(addr); | |
| 727 | 1362 return Address(base.base(), base.disp() + lo_word_offset_in_bytes); |
| 0 | 1363 } |
| 1364 | |
| 1365 | |
| 1366 void LIR_Assembler::mem2reg(LIR_Opr src_opr, LIR_Opr dest, BasicType type, | |
| 2002 | 1367 LIR_PatchCode patch_code, CodeEmitInfo* info, bool wide, bool unaligned) { |
| 0 | 1368 |
| 1369 LIR_Address* addr = src_opr->as_address_ptr(); | |
| 1370 LIR_Opr to_reg = dest; | |
| 1371 | |
| 1372 Register src = addr->base()->as_pointer_register(); | |
| 1373 Register disp_reg = noreg; | |
| 1374 int disp_value = addr->disp(); | |
| 1375 bool needs_patching = (patch_code != lir_patch_none); | |
| 1376 | |
| 1377 if (addr->base()->type() == T_OBJECT) { | |
| 1378 __ verify_oop(src); | |
| 1379 } | |
| 1380 | |
| 1381 PatchingStub* patch = NULL; | |
| 1382 if (needs_patching) { | |
| 1383 patch = new PatchingStub(_masm, PatchingStub::access_field_id); | |
| 1384 assert(!to_reg->is_double_cpu() || | |
| 1385 patch_code == lir_patch_none || | |
| 1386 patch_code == lir_patch_normal, "patching doesn't match register"); | |
| 1387 } | |
| 1388 | |
| 1389 if (addr->index()->is_illegal()) { | |
| 1390 if (!Assembler::is_simm13(disp_value) && (!unaligned || Assembler::is_simm13(disp_value + 4))) { | |
| 1391 if (needs_patching) { | |
| 727 | 1392 __ patchable_set(0, O7); |
| 0 | 1393 } else { |
| 1394 __ set(disp_value, O7); | |
| 1395 } | |
| 1396 disp_reg = O7; | |
| 1397 } | |
| 1398 } else if (unaligned || PatchALot) { | |
| 1399 __ add(src, addr->index()->as_register(), O7); | |
| 1400 src = O7; | |
| 1401 } else { | |
| 1402 disp_reg = addr->index()->as_pointer_register(); | |
| 1403 assert(disp_value == 0, "can't handle 3 operand addresses"); | |
| 1404 } | |
| 1405 | |
| 1406 // remember the offset of the load. The patching_epilog must be done | |
| 1407 // before the call to add_debug_info, otherwise the PcDescs don't get | |
| 1408 // entered in increasing order. | |
| 1409 int offset = code_offset(); | |
| 1410 | |
| 1411 assert(disp_reg != noreg || Assembler::is_simm13(disp_value), "should have set this up"); | |
| 1412 if (disp_reg == noreg) { | |
| 2002 | 1413 offset = load(src, disp_value, to_reg, type, wide, unaligned); |
| 0 | 1414 } else { |
| 1415 assert(!unaligned, "can't handle this"); | |
| 2002 | 1416 offset = load(src, disp_reg, to_reg, type, wide); |
| 0 | 1417 } |
| 1418 | |
| 1419 if (patch != NULL) { | |
| 1420 patching_epilog(patch, patch_code, src, info); | |
| 1421 } | |
| 1422 if (info != NULL) add_debug_info_for_null_check(offset, info); | |
| 1423 } | |
| 1424 | |
| 1425 | |
| 1426 void LIR_Assembler::prefetchr(LIR_Opr src) { | |
| 1427 LIR_Address* addr = src->as_address_ptr(); | |
| 1428 Address from_addr = as_Address(addr); | |
| 1429 | |
| 1430 if (VM_Version::has_v9()) { | |
| 1431 __ prefetch(from_addr, Assembler::severalReads); | |
| 1432 } | |
| 1433 } | |
| 1434 | |
| 1435 | |
| 1436 void LIR_Assembler::prefetchw(LIR_Opr src) { | |
| 1437 LIR_Address* addr = src->as_address_ptr(); | |
| 1438 Address from_addr = as_Address(addr); | |
| 1439 | |
| 1440 if (VM_Version::has_v9()) { | |
| 1441 __ prefetch(from_addr, Assembler::severalWritesAndPossiblyReads); | |
| 1442 } | |
| 1443 } | |
| 1444 | |
| 1445 | |
| 1446 void LIR_Assembler::stack2reg(LIR_Opr src, LIR_Opr dest, BasicType type) { | |
| 1447 Address addr; | |
| 1448 if (src->is_single_word()) { | |
| 1449 addr = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1450 } else if (src->is_double_word()) { | |
| 1451 addr = frame_map()->address_for_double_slot(src->double_stack_ix()); | |
| 1452 } | |
| 1453 | |
| 1454 bool unaligned = (addr.disp() - STACK_BIAS) % 8 != 0; | |
| 2002 | 1455 load(addr.base(), addr.disp(), dest, dest->type(), true /*wide*/, unaligned); |
| 0 | 1456 } |
| 1457 | |
| 1458 | |
| 1459 void LIR_Assembler::reg2stack(LIR_Opr from_reg, LIR_Opr dest, BasicType type, bool pop_fpu_stack) { | |
| 1460 Address addr; | |
| 1461 if (dest->is_single_word()) { | |
| 1462 addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1463 } else if (dest->is_double_word()) { | |
| 1464 addr = frame_map()->address_for_slot(dest->double_stack_ix()); | |
| 1465 } | |
| 1466 bool unaligned = (addr.disp() - STACK_BIAS) % 8 != 0; | |
| 2002 | 1467 store(from_reg, addr.base(), addr.disp(), from_reg->type(), true /*wide*/, unaligned); |
| 0 | 1468 } |
| 1469 | |
| 1470 | |
| 1471 void LIR_Assembler::reg2reg(LIR_Opr from_reg, LIR_Opr to_reg) { | |
| 1472 if (from_reg->is_float_kind() && to_reg->is_float_kind()) { | |
| 1473 if (from_reg->is_double_fpu()) { | |
| 1474 // double to double moves | |
| 1475 assert(to_reg->is_double_fpu(), "should match"); | |
| 1476 __ fmov(FloatRegisterImpl::D, from_reg->as_double_reg(), to_reg->as_double_reg()); | |
| 1477 } else { | |
| 1478 // float to float moves | |
| 1479 assert(to_reg->is_single_fpu(), "should match"); | |
| 1480 __ fmov(FloatRegisterImpl::S, from_reg->as_float_reg(), to_reg->as_float_reg()); | |
| 1481 } | |
| 1482 } else if (!from_reg->is_float_kind() && !to_reg->is_float_kind()) { | |
| 1483 if (from_reg->is_double_cpu()) { | |
| 1484 #ifdef _LP64 | |
| 1485 __ mov(from_reg->as_pointer_register(), to_reg->as_pointer_register()); | |
| 1486 #else | |
| 1487 assert(to_reg->is_double_cpu() && | |
| 1488 from_reg->as_register_hi() != to_reg->as_register_lo() && | |
| 1489 from_reg->as_register_lo() != to_reg->as_register_hi(), | |
| 1490 "should both be long and not overlap"); | |
| 1491 // long to long moves | |
| 1492 __ mov(from_reg->as_register_hi(), to_reg->as_register_hi()); | |
| 1493 __ mov(from_reg->as_register_lo(), to_reg->as_register_lo()); | |
| 1494 #endif | |
| 1495 #ifdef _LP64 | |
| 1496 } else if (to_reg->is_double_cpu()) { | |
| 1497 // int to int moves | |
| 1498 __ mov(from_reg->as_register(), to_reg->as_register_lo()); | |
| 1499 #endif | |
| 1500 } else { | |
| 1501 // int to int moves | |
| 1502 __ mov(from_reg->as_register(), to_reg->as_register()); | |
| 1503 } | |
| 1504 } else { | |
| 1505 ShouldNotReachHere(); | |
| 1506 } | |
| 1507 if (to_reg->type() == T_OBJECT || to_reg->type() == T_ARRAY) { | |
| 1508 __ verify_oop(to_reg->as_register()); | |
| 1509 } | |
| 1510 } | |
| 1511 | |
| 1512 | |
| 1513 void LIR_Assembler::reg2mem(LIR_Opr from_reg, LIR_Opr dest, BasicType type, | |
| 1514 LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, | |
| 2002 | 1515 bool wide, bool unaligned) { |
| 0 | 1516 LIR_Address* addr = dest->as_address_ptr(); |
| 1517 | |
| 1518 Register src = addr->base()->as_pointer_register(); | |
| 1519 Register disp_reg = noreg; | |
| 1520 int disp_value = addr->disp(); | |
| 1521 bool needs_patching = (patch_code != lir_patch_none); | |
| 1522 | |
| 1523 if (addr->base()->is_oop_register()) { | |
| 1524 __ verify_oop(src); | |
| 1525 } | |
| 1526 | |
| 1527 PatchingStub* patch = NULL; | |
| 1528 if (needs_patching) { | |
| 1529 patch = new PatchingStub(_masm, PatchingStub::access_field_id); | |
| 1530 assert(!from_reg->is_double_cpu() || | |
| 1531 patch_code == lir_patch_none || | |
| 1532 patch_code == lir_patch_normal, "patching doesn't match register"); | |
| 1533 } | |
| 1534 | |
| 1535 if (addr->index()->is_illegal()) { | |
| 1536 if (!Assembler::is_simm13(disp_value) && (!unaligned || Assembler::is_simm13(disp_value + 4))) { | |
| 1537 if (needs_patching) { | |
| 727 | 1538 __ patchable_set(0, O7); |
| 0 | 1539 } else { |
| 1540 __ set(disp_value, O7); | |
| 1541 } | |
| 1542 disp_reg = O7; | |
| 1543 } | |
| 1544 } else if (unaligned || PatchALot) { | |
| 1545 __ add(src, addr->index()->as_register(), O7); | |
| 1546 src = O7; | |
| 1547 } else { | |
| 1548 disp_reg = addr->index()->as_pointer_register(); | |
| 1549 assert(disp_value == 0, "can't handle 3 operand addresses"); | |
| 1550 } | |
| 1551 | |
| 1552 // remember the offset of the store. The patching_epilog must be done | |
| 1553 // before the call to add_debug_info_for_null_check, otherwise the PcDescs don't get | |
| 1554 // entered in increasing order. | |
| 1555 int offset; | |
| 1556 | |
| 1557 assert(disp_reg != noreg || Assembler::is_simm13(disp_value), "should have set this up"); | |
| 1558 if (disp_reg == noreg) { | |
| 2002 | 1559 offset = store(from_reg, src, disp_value, type, wide, unaligned); |
| 0 | 1560 } else { |
| 1561 assert(!unaligned, "can't handle this"); | |
| 2002 | 1562 offset = store(from_reg, src, disp_reg, type, wide); |
| 0 | 1563 } |
| 1564 | |
| 1565 if (patch != NULL) { | |
| 1566 patching_epilog(patch, patch_code, src, info); | |
| 1567 } | |
| 1568 | |
| 1569 if (info != NULL) add_debug_info_for_null_check(offset, info); | |
| 1570 } | |
| 1571 | |
| 1572 | |
| 1573 void LIR_Assembler::return_op(LIR_Opr result) { | |
| 1574 // the poll may need a register so just pick one that isn't the return register | |
| 1783 | 1575 #if defined(TIERED) && !defined(_LP64) |
| 0 | 1576 if (result->type_field() == LIR_OprDesc::long_type) { |
| 1577 // Must move the result to G1 | |
| 1578 // Must leave proper result in O0,O1 and G1 (TIERED only) | |
| 1579 __ sllx(I0, 32, G1); // Shift bits into high G1 | |
| 1580 __ srl (I1, 0, I1); // Zero extend O1 (harmless?) | |
| 1581 __ or3 (I1, G1, G1); // OR 64 bits into G1 | |
| 1783 | 1582 #ifdef ASSERT |
| 1583 // mangle it so any problems will show up | |
| 1584 __ set(0xdeadbeef, I0); | |
| 1585 __ set(0xdeadbeef, I1); | |
| 1586 #endif | |
| 0 | 1587 } |
| 1588 #endif // TIERED | |
| 1589 __ set((intptr_t)os::get_polling_page(), L0); | |
| 1590 __ relocate(relocInfo::poll_return_type); | |
| 1591 __ ld_ptr(L0, 0, G0); | |
| 1592 __ ret(); | |
| 1593 __ delayed()->restore(); | |
| 1594 } | |
| 1595 | |
| 1596 | |
| 1597 int LIR_Assembler::safepoint_poll(LIR_Opr tmp, CodeEmitInfo* info) { | |
| 1598 __ set((intptr_t)os::get_polling_page(), tmp->as_register()); | |
| 1599 if (info != NULL) { | |
| 1600 add_debug_info_for_branch(info); | |
| 1601 } else { | |
| 1602 __ relocate(relocInfo::poll_type); | |
| 1603 } | |
| 1604 | |
| 1605 int offset = __ offset(); | |
| 1606 __ ld_ptr(tmp->as_register(), 0, G0); | |
| 1607 | |
| 1608 return offset; | |
| 1609 } | |
| 1610 | |
| 1611 | |
| 1612 void LIR_Assembler::emit_static_call_stub() { | |
| 1613 address call_pc = __ pc(); | |
| 1614 address stub = __ start_a_stub(call_stub_size); | |
| 1615 if (stub == NULL) { | |
| 1616 bailout("static call stub overflow"); | |
| 1617 return; | |
| 1618 } | |
| 1619 | |
| 1620 int start = __ offset(); | |
| 1621 __ relocate(static_stub_Relocation::spec(call_pc)); | |
| 1622 | |
|
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1623 __ set_metadata(NULL, G5); |
| 0 | 1624 // must be set to -1 at code generation time |
| 727 | 1625 AddressLiteral addrlit(-1); |
| 1626 __ jump_to(addrlit, G3); | |
| 0 | 1627 __ delayed()->nop(); |
| 1628 | |
| 1629 assert(__ offset() - start <= call_stub_size, "stub too big"); | |
| 1630 __ end_a_stub(); | |
| 1631 } | |
| 1632 | |
| 1633 | |
| 1634 void LIR_Assembler::comp_op(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Op2* op) { | |
| 1635 if (opr1->is_single_fpu()) { | |
| 1636 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, opr1->as_float_reg(), opr2->as_float_reg()); | |
| 1637 } else if (opr1->is_double_fpu()) { | |
| 1638 __ fcmp(FloatRegisterImpl::D, Assembler::fcc0, opr1->as_double_reg(), opr2->as_double_reg()); | |
| 1639 } else if (opr1->is_single_cpu()) { | |
| 1640 if (opr2->is_constant()) { | |
| 1641 switch (opr2->as_constant_ptr()->type()) { | |
| 1642 case T_INT: | |
| 1643 { jint con = opr2->as_constant_ptr()->as_jint(); | |
| 1644 if (Assembler::is_simm13(con)) { | |
| 1645 __ cmp(opr1->as_register(), con); | |
| 1646 } else { | |
| 1647 __ set(con, O7); | |
| 1648 __ cmp(opr1->as_register(), O7); | |
| 1649 } | |
| 1650 } | |
| 1651 break; | |
| 1652 | |
| 1653 case T_OBJECT: | |
| 1654 // there are only equal/notequal comparisions on objects | |
| 1655 { jobject con = opr2->as_constant_ptr()->as_jobject(); | |
| 1656 if (con == NULL) { | |
| 1657 __ cmp(opr1->as_register(), 0); | |
| 1658 } else { | |
| 1659 jobject2reg(con, O7); | |
| 1660 __ cmp(opr1->as_register(), O7); | |
| 1661 } | |
| 1662 } | |
| 1663 break; | |
| 1664 | |
| 1665 default: | |
| 1666 ShouldNotReachHere(); | |
| 1667 break; | |
| 1668 } | |
| 1669 } else { | |
| 1670 if (opr2->is_address()) { | |
| 1671 LIR_Address * addr = opr2->as_address_ptr(); | |
| 1672 BasicType type = addr->type(); | |
| 1673 if ( type == T_OBJECT ) __ ld_ptr(as_Address(addr), O7); | |
| 1674 else __ ld(as_Address(addr), O7); | |
| 1675 __ cmp(opr1->as_register(), O7); | |
| 1676 } else { | |
| 1677 __ cmp(opr1->as_register(), opr2->as_register()); | |
| 1678 } | |
| 1679 } | |
| 1680 } else if (opr1->is_double_cpu()) { | |
| 1681 Register xlo = opr1->as_register_lo(); | |
| 1682 Register xhi = opr1->as_register_hi(); | |
| 1683 if (opr2->is_constant() && opr2->as_jlong() == 0) { | |
| 1684 assert(condition == lir_cond_equal || condition == lir_cond_notEqual, "only handles these cases"); | |
| 1685 #ifdef _LP64 | |
| 1686 __ orcc(xhi, G0, G0); | |
| 1687 #else | |
| 1688 __ orcc(xhi, xlo, G0); | |
| 1689 #endif | |
| 1690 } else if (opr2->is_register()) { | |
| 1691 Register ylo = opr2->as_register_lo(); | |
| 1692 Register yhi = opr2->as_register_hi(); | |
| 1693 #ifdef _LP64 | |
| 1694 __ cmp(xlo, ylo); | |
| 1695 #else | |
| 1696 __ subcc(xlo, ylo, xlo); | |
| 1697 __ subccc(xhi, yhi, xhi); | |
| 1698 if (condition == lir_cond_equal || condition == lir_cond_notEqual) { | |
| 1699 __ orcc(xhi, xlo, G0); | |
| 1700 } | |
| 1701 #endif | |
| 1702 } else { | |
| 1703 ShouldNotReachHere(); | |
| 1704 } | |
| 1705 } else if (opr1->is_address()) { | |
| 1706 LIR_Address * addr = opr1->as_address_ptr(); | |
| 1707 BasicType type = addr->type(); | |
| 1708 assert (opr2->is_constant(), "Checking"); | |
| 1709 if ( type == T_OBJECT ) __ ld_ptr(as_Address(addr), O7); | |
| 1710 else __ ld(as_Address(addr), O7); | |
| 1711 __ cmp(O7, opr2->as_constant_ptr()->as_jint()); | |
| 1712 } else { | |
| 1713 ShouldNotReachHere(); | |
| 1714 } | |
| 1715 } | |
| 1716 | |
| 1717 | |
| 1718 void LIR_Assembler::comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dst, LIR_Op2* op){ | |
| 1719 if (code == lir_cmp_fd2i || code == lir_ucmp_fd2i) { | |
| 1720 bool is_unordered_less = (code == lir_ucmp_fd2i); | |
| 1721 if (left->is_single_fpu()) { | |
| 1722 __ float_cmp(true, is_unordered_less ? -1 : 1, left->as_float_reg(), right->as_float_reg(), dst->as_register()); | |
| 1723 } else if (left->is_double_fpu()) { | |
| 1724 __ float_cmp(false, is_unordered_less ? -1 : 1, left->as_double_reg(), right->as_double_reg(), dst->as_register()); | |
| 1725 } else { | |
| 1726 ShouldNotReachHere(); | |
| 1727 } | |
| 1728 } else if (code == lir_cmp_l2i) { | |
| 1369 | 1729 #ifdef _LP64 |
| 1730 __ lcmp(left->as_register_lo(), right->as_register_lo(), dst->as_register()); | |
| 1731 #else | |
| 0 | 1732 __ lcmp(left->as_register_hi(), left->as_register_lo(), |
| 1733 right->as_register_hi(), right->as_register_lo(), | |
| 1734 dst->as_register()); | |
| 1369 | 1735 #endif |
| 0 | 1736 } else { |
| 1737 ShouldNotReachHere(); | |
| 1738 } | |
| 1739 } | |
| 1740 | |
| 1741 | |
|
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1742 void LIR_Assembler::cmove(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type) { |
| 0 | 1743 Assembler::Condition acond; |
| 1744 switch (condition) { | |
| 1745 case lir_cond_equal: acond = Assembler::equal; break; | |
| 1746 case lir_cond_notEqual: acond = Assembler::notEqual; break; | |
| 1747 case lir_cond_less: acond = Assembler::less; break; | |
| 1748 case lir_cond_lessEqual: acond = Assembler::lessEqual; break; | |
| 1749 case lir_cond_greaterEqual: acond = Assembler::greaterEqual; break; | |
| 1750 case lir_cond_greater: acond = Assembler::greater; break; | |
| 1751 case lir_cond_aboveEqual: acond = Assembler::greaterEqualUnsigned; break; | |
| 1752 case lir_cond_belowEqual: acond = Assembler::lessEqualUnsigned; break; | |
| 1753 default: ShouldNotReachHere(); | |
| 1754 }; | |
| 1755 | |
| 1756 if (opr1->is_constant() && opr1->type() == T_INT) { | |
| 1757 Register dest = result->as_register(); | |
| 1758 // load up first part of constant before branch | |
| 1759 // and do the rest in the delay slot. | |
| 1760 if (!Assembler::is_simm13(opr1->as_jint())) { | |
| 1761 __ sethi(opr1->as_jint(), dest); | |
| 1762 } | |
| 1763 } else if (opr1->is_constant()) { | |
| 1764 const2reg(opr1, result, lir_patch_none, NULL); | |
| 1765 } else if (opr1->is_register()) { | |
| 1766 reg2reg(opr1, result); | |
| 1767 } else if (opr1->is_stack()) { | |
| 1768 stack2reg(opr1, result, result->type()); | |
| 1769 } else { | |
| 1770 ShouldNotReachHere(); | |
| 1771 } | |
| 1772 Label skip; | |
|
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1773 #ifdef _LP64 |
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1774 if (type == T_INT) { |
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1775 __ br(acond, false, Assembler::pt, skip); |
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1776 } else |
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1777 #endif |
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1778 __ brx(acond, false, Assembler::pt, skip); // checks icc on 32bit and xcc on 64bit |
| 0 | 1779 if (opr1->is_constant() && opr1->type() == T_INT) { |
| 1780 Register dest = result->as_register(); | |
| 1781 if (Assembler::is_simm13(opr1->as_jint())) { | |
| 1782 __ delayed()->or3(G0, opr1->as_jint(), dest); | |
| 1783 } else { | |
| 1784 // the sethi has been done above, so just put in the low 10 bits | |
| 1785 __ delayed()->or3(dest, opr1->as_jint() & 0x3ff, dest); | |
| 1786 } | |
| 1787 } else { | |
| 1788 // can't do anything useful in the delay slot | |
| 1789 __ delayed()->nop(); | |
| 1790 } | |
| 1791 if (opr2->is_constant()) { | |
| 1792 const2reg(opr2, result, lir_patch_none, NULL); | |
| 1793 } else if (opr2->is_register()) { | |
| 1794 reg2reg(opr2, result); | |
| 1795 } else if (opr2->is_stack()) { | |
| 1796 stack2reg(opr2, result, result->type()); | |
| 1797 } else { | |
| 1798 ShouldNotReachHere(); | |
| 1799 } | |
| 1800 __ bind(skip); | |
| 1801 } | |
| 1802 | |
| 1803 | |
| 1804 void LIR_Assembler::arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest, CodeEmitInfo* info, bool pop_fpu_stack) { | |
| 1805 assert(info == NULL, "unused on this code path"); | |
| 1806 assert(left->is_register(), "wrong items state"); | |
| 1807 assert(dest->is_register(), "wrong items state"); | |
| 1808 | |
| 1809 if (right->is_register()) { | |
| 1810 if (dest->is_float_kind()) { | |
| 1811 | |
| 1812 FloatRegister lreg, rreg, res; | |
| 1813 FloatRegisterImpl::Width w; | |
| 1814 if (right->is_single_fpu()) { | |
| 1815 w = FloatRegisterImpl::S; | |
| 1816 lreg = left->as_float_reg(); | |
| 1817 rreg = right->as_float_reg(); | |
| 1818 res = dest->as_float_reg(); | |
| 1819 } else { | |
| 1820 w = FloatRegisterImpl::D; | |
| 1821 lreg = left->as_double_reg(); | |
| 1822 rreg = right->as_double_reg(); | |
| 1823 res = dest->as_double_reg(); | |
| 1824 } | |
| 1825 | |
| 1826 switch (code) { | |
| 1827 case lir_add: __ fadd(w, lreg, rreg, res); break; | |
| 1828 case lir_sub: __ fsub(w, lreg, rreg, res); break; | |
| 1829 case lir_mul: // fall through | |
| 1830 case lir_mul_strictfp: __ fmul(w, lreg, rreg, res); break; | |
| 1831 case lir_div: // fall through | |
| 1832 case lir_div_strictfp: __ fdiv(w, lreg, rreg, res); break; | |
| 1833 default: ShouldNotReachHere(); | |
| 1834 } | |
| 1835 | |
| 1836 } else if (dest->is_double_cpu()) { | |
| 1837 #ifdef _LP64 | |
| 1838 Register dst_lo = dest->as_register_lo(); | |
| 1839 Register op1_lo = left->as_pointer_register(); | |
| 1840 Register op2_lo = right->as_pointer_register(); | |
| 1841 | |
| 1842 switch (code) { | |
| 1843 case lir_add: | |
| 1844 __ add(op1_lo, op2_lo, dst_lo); | |
| 1845 break; | |
| 1846 | |
| 1847 case lir_sub: | |
| 1848 __ sub(op1_lo, op2_lo, dst_lo); | |
| 1849 break; | |
| 1850 | |
| 1851 default: ShouldNotReachHere(); | |
| 1852 } | |
| 1853 #else | |
| 1854 Register op1_lo = left->as_register_lo(); | |
| 1855 Register op1_hi = left->as_register_hi(); | |
| 1856 Register op2_lo = right->as_register_lo(); | |
| 1857 Register op2_hi = right->as_register_hi(); | |
| 1858 Register dst_lo = dest->as_register_lo(); | |
| 1859 Register dst_hi = dest->as_register_hi(); | |
| 1860 | |
| 1861 switch (code) { | |
| 1862 case lir_add: | |
| 1863 __ addcc(op1_lo, op2_lo, dst_lo); | |
| 1864 __ addc (op1_hi, op2_hi, dst_hi); | |
| 1865 break; | |
| 1866 | |
| 1867 case lir_sub: | |
| 1868 __ subcc(op1_lo, op2_lo, dst_lo); | |
| 1869 __ subc (op1_hi, op2_hi, dst_hi); | |
| 1870 break; | |
| 1871 | |
| 1872 default: ShouldNotReachHere(); | |
| 1873 } | |
| 1874 #endif | |
| 1875 } else { | |
| 1876 assert (right->is_single_cpu(), "Just Checking"); | |
| 1877 | |
| 1878 Register lreg = left->as_register(); | |
| 1879 Register res = dest->as_register(); | |
| 1880 Register rreg = right->as_register(); | |
| 1881 switch (code) { | |
| 1882 case lir_add: __ add (lreg, rreg, res); break; | |
| 1883 case lir_sub: __ sub (lreg, rreg, res); break; | |
| 1884 case lir_mul: __ mult (lreg, rreg, res); break; | |
| 1885 default: ShouldNotReachHere(); | |
| 1886 } | |
| 1887 } | |
| 1888 } else { | |
| 1889 assert (right->is_constant(), "must be constant"); | |
| 1890 | |
| 1891 if (dest->is_single_cpu()) { | |
| 1892 Register lreg = left->as_register(); | |
| 1893 Register res = dest->as_register(); | |
| 1894 int simm13 = right->as_constant_ptr()->as_jint(); | |
| 1895 | |
| 1896 switch (code) { | |
| 1897 case lir_add: __ add (lreg, simm13, res); break; | |
| 1898 case lir_sub: __ sub (lreg, simm13, res); break; | |
| 1899 case lir_mul: __ mult (lreg, simm13, res); break; | |
| 1900 default: ShouldNotReachHere(); | |
| 1901 } | |
| 1902 } else { | |
| 1903 Register lreg = left->as_pointer_register(); | |
| 1904 Register res = dest->as_register_lo(); | |
| 1905 long con = right->as_constant_ptr()->as_jlong(); | |
| 1906 assert(Assembler::is_simm13(con), "must be simm13"); | |
| 1907 | |
| 1908 switch (code) { | |
| 1909 case lir_add: __ add (lreg, (int)con, res); break; | |
| 1910 case lir_sub: __ sub (lreg, (int)con, res); break; | |
| 1911 case lir_mul: __ mult (lreg, (int)con, res); break; | |
| 1912 default: ShouldNotReachHere(); | |
| 1913 } | |
| 1914 } | |
| 1915 } | |
| 1916 } | |
| 1917 | |
| 1918 | |
| 1919 void LIR_Assembler::fpop() { | |
| 1920 // do nothing | |
| 1921 } | |
| 1922 | |
| 1923 | |
| 1924 void LIR_Assembler::intrinsic_op(LIR_Code code, LIR_Opr value, LIR_Opr thread, LIR_Opr dest, LIR_Op* op) { | |
| 1925 switch (code) { | |
| 1926 case lir_sin: | |
| 1927 case lir_tan: | |
| 1928 case lir_cos: { | |
| 1929 assert(thread->is_valid(), "preserve the thread object for performance reasons"); | |
| 1930 assert(dest->as_double_reg() == F0, "the result will be in f0/f1"); | |
| 1931 break; | |
| 1932 } | |
| 1933 case lir_sqrt: { | |
| 1934 assert(!thread->is_valid(), "there is no need for a thread_reg for dsqrt"); | |
| 1935 FloatRegister src_reg = value->as_double_reg(); | |
| 1936 FloatRegister dst_reg = dest->as_double_reg(); | |
| 1937 __ fsqrt(FloatRegisterImpl::D, src_reg, dst_reg); | |
| 1938 break; | |
| 1939 } | |
| 1940 case lir_abs: { | |
| 1941 assert(!thread->is_valid(), "there is no need for a thread_reg for fabs"); | |
| 1942 FloatRegister src_reg = value->as_double_reg(); | |
| 1943 FloatRegister dst_reg = dest->as_double_reg(); | |
| 1944 __ fabs(FloatRegisterImpl::D, src_reg, dst_reg); | |
| 1945 break; | |
| 1946 } | |
| 1947 default: { | |
| 1948 ShouldNotReachHere(); | |
| 1949 break; | |
| 1950 } | |
| 1951 } | |
| 1952 } | |
| 1953 | |
| 1954 | |
| 1955 void LIR_Assembler::logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest) { | |
| 1956 if (right->is_constant()) { | |
| 1957 if (dest->is_single_cpu()) { | |
| 1958 int simm13 = right->as_constant_ptr()->as_jint(); | |
| 1959 switch (code) { | |
| 1960 case lir_logic_and: __ and3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1961 case lir_logic_or: __ or3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1962 case lir_logic_xor: __ xor3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1963 default: ShouldNotReachHere(); | |
| 1964 } | |
| 1965 } else { | |
| 1966 long c = right->as_constant_ptr()->as_jlong(); | |
| 1967 assert(c == (int)c && Assembler::is_simm13(c), "out of range"); | |
| 1968 int simm13 = (int)c; | |
| 1969 switch (code) { | |
| 1970 case lir_logic_and: | |
| 1971 #ifndef _LP64 | |
| 1972 __ and3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 1973 #endif | |
| 1974 __ and3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 1975 break; | |
| 1976 | |
| 1977 case lir_logic_or: | |
| 1978 #ifndef _LP64 | |
| 1979 __ or3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 1980 #endif | |
| 1981 __ or3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 1982 break; | |
| 1983 | |
| 1984 case lir_logic_xor: | |
| 1985 #ifndef _LP64 | |
| 1986 __ xor3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 1987 #endif | |
| 1988 __ xor3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 1989 break; | |
| 1990 | |
| 1991 default: ShouldNotReachHere(); | |
| 1992 } | |
| 1993 } | |
| 1994 } else { | |
| 1995 assert(right->is_register(), "right should be in register"); | |
| 1996 | |
| 1997 if (dest->is_single_cpu()) { | |
| 1998 switch (code) { | |
| 1999 case lir_logic_and: __ and3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2000 case lir_logic_or: __ or3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2001 case lir_logic_xor: __ xor3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2002 default: ShouldNotReachHere(); | |
| 2003 } | |
| 2004 } else { | |
| 2005 #ifdef _LP64 | |
| 2006 Register l = (left->is_single_cpu() && left->is_oop_register()) ? left->as_register() : | |
| 2007 left->as_register_lo(); | |
| 2008 Register r = (right->is_single_cpu() && right->is_oop_register()) ? right->as_register() : | |
| 2009 right->as_register_lo(); | |
| 2010 | |
| 2011 switch (code) { | |
| 2012 case lir_logic_and: __ and3 (l, r, dest->as_register_lo()); break; | |
| 2013 case lir_logic_or: __ or3 (l, r, dest->as_register_lo()); break; | |
| 2014 case lir_logic_xor: __ xor3 (l, r, dest->as_register_lo()); break; | |
| 2015 default: ShouldNotReachHere(); | |
| 2016 } | |
| 2017 #else | |
| 2018 switch (code) { | |
| 2019 case lir_logic_and: | |
| 2020 __ and3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2021 __ and3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2022 break; | |
| 2023 | |
| 2024 case lir_logic_or: | |
| 2025 __ or3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2026 __ or3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2027 break; | |
| 2028 | |
| 2029 case lir_logic_xor: | |
| 2030 __ xor3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2031 __ xor3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2032 break; | |
| 2033 | |
| 2034 default: ShouldNotReachHere(); | |
| 2035 } | |
| 2036 #endif | |
| 2037 } | |
| 2038 } | |
| 2039 } | |
| 2040 | |
| 2041 | |
| 2042 int LIR_Assembler::shift_amount(BasicType t) { | |
|
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2043 int elem_size = type2aelembytes(t); |
| 0 | 2044 switch (elem_size) { |
| 2045 case 1 : return 0; | |
| 2046 case 2 : return 1; | |
| 2047 case 4 : return 2; | |
| 2048 case 8 : return 3; | |
| 2049 } | |
| 2050 ShouldNotReachHere(); | |
| 2051 return -1; | |
| 2052 } | |
| 2053 | |
| 2054 | |
|
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2055 void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { |
| 0 | 2056 assert(exceptionOop->as_register() == Oexception, "should match"); |
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2057 assert(exceptionPC->as_register() == Oissuing_pc, "should match"); |
| 0 | 2058 |
| 2059 info->add_register_oop(exceptionOop); | |
| 2060 | |
|
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2061 // reuse the debug info from the safepoint poll for the throw op itself |
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2062 address pc_for_athrow = __ pc(); |
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2063 int pc_for_athrow_offset = __ offset(); |
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2064 RelocationHolder rspec = internal_word_Relocation::spec(pc_for_athrow); |
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2065 __ set(pc_for_athrow, Oissuing_pc, rspec); |
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2066 add_call_info(pc_for_athrow_offset, info); // for exception handler |
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2067 |
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2068 __ call(Runtime1::entry_for(Runtime1::handle_exception_id), relocInfo::runtime_call_type); |
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2069 __ delayed()->nop(); |
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2070 } |
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2071 |
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2072 |
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2073 void LIR_Assembler::unwind_op(LIR_Opr exceptionOop) { |
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2074 assert(exceptionOop->as_register() == Oexception, "should match"); |
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2075 |
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2076 __ br(Assembler::always, false, Assembler::pt, _unwind_handler_entry); |
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2077 __ delayed()->nop(); |
| 0 | 2078 } |
| 2079 | |
| 2080 void LIR_Assembler::emit_arraycopy(LIR_OpArrayCopy* op) { | |
| 2081 Register src = op->src()->as_register(); | |
| 2082 Register dst = op->dst()->as_register(); | |
| 2083 Register src_pos = op->src_pos()->as_register(); | |
| 2084 Register dst_pos = op->dst_pos()->as_register(); | |
| 2085 Register length = op->length()->as_register(); | |
| 2086 Register tmp = op->tmp()->as_register(); | |
| 2087 Register tmp2 = O7; | |
| 2088 | |
| 2089 int flags = op->flags(); | |
| 2090 ciArrayKlass* default_type = op->expected_type(); | |
| 2091 BasicType basic_type = default_type != NULL ? default_type->element_type()->basic_type() : T_ILLEGAL; | |
| 2092 if (basic_type == T_ARRAY) basic_type = T_OBJECT; | |
| 2093 | |
|
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2094 #ifdef _LP64 |
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2095 // higher 32bits must be null |
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2096 __ sra(dst_pos, 0, dst_pos); |
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2097 __ sra(src_pos, 0, src_pos); |
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2098 __ sra(length, 0, length); |
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2099 #endif |
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2100 |
| 0 | 2101 // set up the arraycopy stub information |
| 2102 ArrayCopyStub* stub = op->stub(); | |
| 2103 | |
| 2104 // always do stub if no type information is available. it's ok if | |
| 2105 // the known type isn't loaded since the code sanity checks | |
| 2106 // in debug mode and the type isn't required when we know the exact type | |
| 2107 // also check that the type is an array type. | |
| 2446 | 2108 if (op->expected_type() == NULL) { |
| 0 | 2109 __ mov(src, O0); |
| 2110 __ mov(src_pos, O1); | |
| 2111 __ mov(dst, O2); | |
| 2112 __ mov(dst_pos, O3); | |
| 2113 __ mov(length, O4); | |
| 2446 | 2114 address copyfunc_addr = StubRoutines::generic_arraycopy(); |
| 2115 | |
| 2116 if (copyfunc_addr == NULL) { // Use C version if stub was not generated | |
| 2117 __ call_VM_leaf(tmp, CAST_FROM_FN_PTR(address, Runtime1::arraycopy)); | |
| 2118 } else { | |
| 2119 #ifndef PRODUCT | |
| 2120 if (PrintC1Statistics) { | |
| 2121 address counter = (address)&Runtime1::_generic_arraycopystub_cnt; | |
| 2122 __ inc_counter(counter, G1, G3); | |
| 2123 } | |
| 2124 #endif | |
| 2125 __ call_VM_leaf(tmp, copyfunc_addr); | |
| 2126 } | |
| 2127 | |
| 2128 if (copyfunc_addr != NULL) { | |
| 2129 __ xor3(O0, -1, tmp); | |
| 2130 __ sub(length, tmp, length); | |
| 2131 __ add(src_pos, tmp, src_pos); | |
| 3839 | 2132 __ cmp_zero_and_br(Assembler::less, O0, *stub->entry()); |
| 2446 | 2133 __ delayed()->add(dst_pos, tmp, dst_pos); |
| 2134 } else { | |
| 3839 | 2135 __ cmp_zero_and_br(Assembler::less, O0, *stub->entry()); |
| 2446 | 2136 __ delayed()->nop(); |
| 2137 } | |
| 0 | 2138 __ bind(*stub->continuation()); |
| 2139 return; | |
| 2140 } | |
| 2141 | |
| 2142 assert(default_type != NULL && default_type->is_array_klass(), "must be true at this point"); | |
| 2143 | |
| 2144 // make sure src and dst are non-null and load array length | |
| 2145 if (flags & LIR_OpArrayCopy::src_null_check) { | |
| 2146 __ tst(src); | |
| 2002 | 2147 __ brx(Assembler::equal, false, Assembler::pn, *stub->entry()); |
| 0 | 2148 __ delayed()->nop(); |
| 2149 } | |
| 2150 | |
| 2151 if (flags & LIR_OpArrayCopy::dst_null_check) { | |
| 2152 __ tst(dst); | |
| 2002 | 2153 __ brx(Assembler::equal, false, Assembler::pn, *stub->entry()); |
| 0 | 2154 __ delayed()->nop(); |
| 2155 } | |
| 2156 | |
| 2157 if (flags & LIR_OpArrayCopy::src_pos_positive_check) { | |
| 2158 // test src_pos register | |
| 3839 | 2159 __ cmp_zero_and_br(Assembler::less, src_pos, *stub->entry()); |
| 0 | 2160 __ delayed()->nop(); |
| 2161 } | |
| 2162 | |
| 2163 if (flags & LIR_OpArrayCopy::dst_pos_positive_check) { | |
| 2164 // test dst_pos register | |
| 3839 | 2165 __ cmp_zero_and_br(Assembler::less, dst_pos, *stub->entry()); |
| 0 | 2166 __ delayed()->nop(); |
| 2167 } | |
| 2168 | |
| 2169 if (flags & LIR_OpArrayCopy::length_positive_check) { | |
| 2170 // make sure length isn't negative | |
| 3839 | 2171 __ cmp_zero_and_br(Assembler::less, length, *stub->entry()); |
| 0 | 2172 __ delayed()->nop(); |
| 2173 } | |
| 2174 | |
| 2175 if (flags & LIR_OpArrayCopy::src_range_check) { | |
| 2176 __ ld(src, arrayOopDesc::length_offset_in_bytes(), tmp2); | |
| 2177 __ add(length, src_pos, tmp); | |
| 2178 __ cmp(tmp2, tmp); | |
| 2179 __ br(Assembler::carrySet, false, Assembler::pn, *stub->entry()); | |
| 2180 __ delayed()->nop(); | |
| 2181 } | |
| 2182 | |
| 2183 if (flags & LIR_OpArrayCopy::dst_range_check) { | |
| 2184 __ ld(dst, arrayOopDesc::length_offset_in_bytes(), tmp2); | |
| 2185 __ add(length, dst_pos, tmp); | |
| 2186 __ cmp(tmp2, tmp); | |
| 2187 __ br(Assembler::carrySet, false, Assembler::pn, *stub->entry()); | |
| 2188 __ delayed()->nop(); | |
| 2189 } | |
| 2190 | |
| 2446 | 2191 int shift = shift_amount(basic_type); |
| 2192 | |
| 0 | 2193 if (flags & LIR_OpArrayCopy::type_check) { |
| 2446 | 2194 // We don't know the array types are compatible |
| 2195 if (basic_type != T_OBJECT) { | |
| 2196 // Simple test for basic type arrays | |
|
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2197 if (UseCompressedKlassPointers) { |
| 2446 | 2198 // We don't need decode because we just need to compare |
| 2199 __ lduw(src, oopDesc::klass_offset_in_bytes(), tmp); | |
| 2200 __ lduw(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2201 __ cmp(tmp, tmp2); | |
| 2202 __ br(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2203 } else { | |
| 2204 __ ld_ptr(src, oopDesc::klass_offset_in_bytes(), tmp); | |
| 2205 __ ld_ptr(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2206 __ cmp(tmp, tmp2); | |
| 2207 __ brx(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2208 } | |
| 2209 __ delayed()->nop(); | |
| 2002 | 2210 } else { |
| 2446 | 2211 // For object arrays, if src is a sub class of dst then we can |
| 2212 // safely do the copy. | |
| 2213 address copyfunc_addr = StubRoutines::checkcast_arraycopy(); | |
| 2214 | |
| 2215 Label cont, slow; | |
| 2216 assert_different_registers(tmp, tmp2, G3, G1); | |
| 2217 | |
| 2218 __ load_klass(src, G3); | |
| 2219 __ load_klass(dst, G1); | |
| 2220 | |
| 2221 __ check_klass_subtype_fast_path(G3, G1, tmp, tmp2, &cont, copyfunc_addr == NULL ? stub->entry() : &slow, NULL); | |
| 2222 | |
| 2223 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); | |
| 2224 __ delayed()->nop(); | |
| 2225 | |
| 2226 __ cmp(G3, 0); | |
| 2227 if (copyfunc_addr != NULL) { // use stub if available | |
| 2228 // src is not a sub class of dst so we have to do a | |
| 2229 // per-element check. | |
| 2230 __ br(Assembler::notEqual, false, Assembler::pt, cont); | |
| 2231 __ delayed()->nop(); | |
| 2232 | |
| 2233 __ bind(slow); | |
| 2234 | |
| 2235 int mask = LIR_OpArrayCopy::src_objarray|LIR_OpArrayCopy::dst_objarray; | |
| 2236 if ((flags & mask) != mask) { | |
| 2237 // Check that at least both of them object arrays. | |
| 2238 assert(flags & mask, "one of the two should be known to be an object array"); | |
| 2239 | |
| 2240 if (!(flags & LIR_OpArrayCopy::src_objarray)) { | |
| 2241 __ load_klass(src, tmp); | |
| 2242 } else if (!(flags & LIR_OpArrayCopy::dst_objarray)) { | |
| 2243 __ load_klass(dst, tmp); | |
| 2244 } | |
|
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|
2245 int lh_offset = in_bytes(Klass::layout_helper_offset()); |
| 2446 | 2246 |
| 2247 __ lduw(tmp, lh_offset, tmp2); | |
| 2248 | |
| 2249 jint objArray_lh = Klass::array_layout_helper(T_OBJECT); | |
| 2250 __ set(objArray_lh, tmp); | |
| 2251 __ cmp(tmp, tmp2); | |
| 2252 __ br(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2253 __ delayed()->nop(); | |
| 2254 } | |
| 2255 | |
| 2256 Register src_ptr = O0; | |
| 2257 Register dst_ptr = O1; | |
| 2258 Register len = O2; | |
| 2259 Register chk_off = O3; | |
| 2260 Register super_k = O4; | |
| 2261 | |
| 2262 __ add(src, arrayOopDesc::base_offset_in_bytes(basic_type), src_ptr); | |
| 2263 if (shift == 0) { | |
| 2264 __ add(src_ptr, src_pos, src_ptr); | |
| 2265 } else { | |
| 2266 __ sll(src_pos, shift, tmp); | |
| 2267 __ add(src_ptr, tmp, src_ptr); | |
| 2268 } | |
| 2269 | |
| 2270 __ add(dst, arrayOopDesc::base_offset_in_bytes(basic_type), dst_ptr); | |
| 2271 if (shift == 0) { | |
| 2272 __ add(dst_ptr, dst_pos, dst_ptr); | |
| 2273 } else { | |
| 2274 __ sll(dst_pos, shift, tmp); | |
| 2275 __ add(dst_ptr, tmp, dst_ptr); | |
| 2276 } | |
| 2277 __ mov(length, len); | |
| 2278 __ load_klass(dst, tmp); | |
| 2279 | |
|
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2280 int ek_offset = in_bytes(objArrayKlass::element_klass_offset()); |
| 2446 | 2281 __ ld_ptr(tmp, ek_offset, super_k); |
| 2282 | |
|
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|
2283 int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
| 2446 | 2284 __ lduw(super_k, sco_offset, chk_off); |
| 2285 | |
| 2286 __ call_VM_leaf(tmp, copyfunc_addr); | |
| 2287 | |
| 2288 #ifndef PRODUCT | |
| 2289 if (PrintC1Statistics) { | |
| 2290 Label failed; | |
| 3839 | 2291 __ br_notnull_short(O0, Assembler::pn, failed); |
| 2446 | 2292 __ inc_counter((address)&Runtime1::_arraycopy_checkcast_cnt, G1, G3); |
| 2293 __ bind(failed); | |
| 2294 } | |
| 2295 #endif | |
| 2296 | |
| 2297 __ br_null(O0, false, Assembler::pt, *stub->continuation()); | |
| 2298 __ delayed()->xor3(O0, -1, tmp); | |
| 2299 | |
| 2300 #ifndef PRODUCT | |
| 2301 if (PrintC1Statistics) { | |
| 2302 __ inc_counter((address)&Runtime1::_arraycopy_checkcast_attempt_cnt, G1, G3); | |
| 2303 } | |
| 2304 #endif | |
| 2305 | |
| 2306 __ sub(length, tmp, length); | |
| 2307 __ add(src_pos, tmp, src_pos); | |
| 2308 __ br(Assembler::always, false, Assembler::pt, *stub->entry()); | |
| 2309 __ delayed()->add(dst_pos, tmp, dst_pos); | |
| 2310 | |
| 2311 __ bind(cont); | |
| 2312 } else { | |
| 2313 __ br(Assembler::equal, false, Assembler::pn, *stub->entry()); | |
| 2314 __ delayed()->nop(); | |
| 2315 __ bind(cont); | |
| 2316 } | |
| 2002 | 2317 } |
| 0 | 2318 } |
| 2319 | |
| 2320 #ifdef ASSERT | |
| 2321 if (basic_type != T_OBJECT || !(flags & LIR_OpArrayCopy::type_check)) { | |
| 2322 // Sanity check the known type with the incoming class. For the | |
| 2323 // primitive case the types must match exactly with src.klass and | |
| 2324 // dst.klass each exactly matching the default type. For the | |
| 2325 // object array case, if no type check is needed then either the | |
| 2326 // dst type is exactly the expected type and the src type is a | |
| 2327 // subtype which we can't check or src is the same array as dst | |
| 2328 // but not necessarily exactly of type default_type. | |
| 2329 Label known_ok, halt; | |
|
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2330 metadata2reg(op->expected_type()->constant_encoding(), tmp); |
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2331 if (UseCompressedKlassPointers) { |
| 2002 | 2332 // tmp holds the default type. It currently comes uncompressed after the |
| 2333 // load of a constant, so encode it. | |
| 2334 __ encode_heap_oop(tmp); | |
| 2335 // load the raw value of the dst klass, since we will be comparing | |
| 2336 // uncompressed values directly. | |
| 2337 __ lduw(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2338 if (basic_type != T_OBJECT) { | |
| 2339 __ cmp(tmp, tmp2); | |
| 2340 __ br(Assembler::notEqual, false, Assembler::pn, halt); | |
| 2341 // load the raw value of the src klass. | |
| 2342 __ delayed()->lduw(src, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 3839 | 2343 __ cmp_and_br_short(tmp, tmp2, Assembler::equal, Assembler::pn, known_ok); |
| 2002 | 2344 } else { |
| 2345 __ cmp(tmp, tmp2); | |
| 2346 __ br(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2347 __ delayed()->cmp(src, dst); | |
| 2348 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2349 __ delayed()->nop(); | |
| 2350 } | |
| 0 | 2351 } else { |
| 2002 | 2352 __ ld_ptr(dst, oopDesc::klass_offset_in_bytes(), tmp2); |
| 2353 if (basic_type != T_OBJECT) { | |
| 2354 __ cmp(tmp, tmp2); | |
| 2355 __ brx(Assembler::notEqual, false, Assembler::pn, halt); | |
| 2356 __ delayed()->ld_ptr(src, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 3839 | 2357 __ cmp_and_brx_short(tmp, tmp2, Assembler::equal, Assembler::pn, known_ok); |
| 2002 | 2358 } else { |
| 2359 __ cmp(tmp, tmp2); | |
| 2360 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2361 __ delayed()->cmp(src, dst); | |
| 2362 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2363 __ delayed()->nop(); | |
| 2364 } | |
| 0 | 2365 } |
| 2366 __ bind(halt); | |
| 2367 __ stop("incorrect type information in arraycopy"); | |
| 2368 __ bind(known_ok); | |
| 2369 } | |
| 2370 #endif | |
| 2371 | |
| 2446 | 2372 #ifndef PRODUCT |
| 2373 if (PrintC1Statistics) { | |
| 2374 address counter = Runtime1::arraycopy_count_address(basic_type); | |
| 2375 __ inc_counter(counter, G1, G3); | |
| 2376 } | |
| 2377 #endif | |
| 0 | 2378 |
| 2379 Register src_ptr = O0; | |
| 2380 Register dst_ptr = O1; | |
| 2381 Register len = O2; | |
| 2382 | |
| 2383 __ add(src, arrayOopDesc::base_offset_in_bytes(basic_type), src_ptr); | |
| 2384 if (shift == 0) { | |
| 2385 __ add(src_ptr, src_pos, src_ptr); | |
| 2386 } else { | |
| 2387 __ sll(src_pos, shift, tmp); | |
| 2388 __ add(src_ptr, tmp, src_ptr); | |
| 2389 } | |
| 2390 | |
| 2391 __ add(dst, arrayOopDesc::base_offset_in_bytes(basic_type), dst_ptr); | |
| 2392 if (shift == 0) { | |
| 2393 __ add(dst_ptr, dst_pos, dst_ptr); | |
| 2394 } else { | |
| 2395 __ sll(dst_pos, shift, tmp); | |
| 2396 __ add(dst_ptr, tmp, dst_ptr); | |
| 2397 } | |
| 2398 | |
| 2446 | 2399 bool disjoint = (flags & LIR_OpArrayCopy::overlapping) == 0; |
| 2400 bool aligned = (flags & LIR_OpArrayCopy::unaligned) == 0; | |
| 2401 const char *name; | |
| 2402 address entry = StubRoutines::select_arraycopy_function(basic_type, aligned, disjoint, name, false); | |
| 2403 | |
| 2404 // arraycopy stubs takes a length in number of elements, so don't scale it. | |
| 2405 __ mov(length, len); | |
| 2406 __ call_VM_leaf(tmp, entry); | |
| 0 | 2407 |
| 2408 __ bind(*stub->continuation()); | |
| 2409 } | |
| 2410 | |
| 2411 | |
| 2412 void LIR_Assembler::shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp) { | |
| 2413 if (dest->is_single_cpu()) { | |
| 2414 #ifdef _LP64 | |
| 2415 if (left->type() == T_OBJECT) { | |
| 2416 switch (code) { | |
| 2417 case lir_shl: __ sllx (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2418 case lir_shr: __ srax (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2419 case lir_ushr: __ srl (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2420 default: ShouldNotReachHere(); | |
| 2421 } | |
| 2422 } else | |
| 2423 #endif | |
| 2424 switch (code) { | |
| 2425 case lir_shl: __ sll (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2426 case lir_shr: __ sra (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2427 case lir_ushr: __ srl (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2428 default: ShouldNotReachHere(); | |
| 2429 } | |
| 2430 } else { | |
| 2431 #ifdef _LP64 | |
| 2432 switch (code) { | |
| 2433 case lir_shl: __ sllx (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2434 case lir_shr: __ srax (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2435 case lir_ushr: __ srlx (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2436 default: ShouldNotReachHere(); | |
| 2437 } | |
| 2438 #else | |
| 2439 switch (code) { | |
| 2440 case lir_shl: __ lshl (left->as_register_hi(), left->as_register_lo(), count->as_register(), dest->as_register_hi(), dest->as_register_lo(), G3_scratch); break; | |
| 2441 case lir_shr: __ lshr (left->as_register_hi(), left->as_register_lo(), count->as_register(), dest->as_register_hi(), dest->as_register_lo(), G3_scratch); break; | |
| 2442 case lir_ushr: __ lushr (left->as_register_hi(), left->as_register_lo(), count->as_register(), dest->as_register_hi(), dest->as_register_lo(), G3_scratch); break; | |
| 2443 default: ShouldNotReachHere(); | |
| 2444 } | |
| 2445 #endif | |
| 2446 } | |
| 2447 } | |
| 2448 | |
| 2449 | |
| 2450 void LIR_Assembler::shift_op(LIR_Code code, LIR_Opr left, jint count, LIR_Opr dest) { | |
| 2451 #ifdef _LP64 | |
| 2452 if (left->type() == T_OBJECT) { | |
| 2453 count = count & 63; // shouldn't shift by more than sizeof(intptr_t) | |
| 2454 Register l = left->as_register(); | |
| 2455 Register d = dest->as_register_lo(); | |
| 2456 switch (code) { | |
| 2457 case lir_shl: __ sllx (l, count, d); break; | |
| 2458 case lir_shr: __ srax (l, count, d); break; | |
| 2459 case lir_ushr: __ srlx (l, count, d); break; | |
| 2460 default: ShouldNotReachHere(); | |
| 2461 } | |
| 2462 return; | |
| 2463 } | |
| 2464 #endif | |
| 2465 | |
| 2466 if (dest->is_single_cpu()) { | |
| 2467 count = count & 0x1F; // Java spec | |
| 2468 switch (code) { | |
| 2469 case lir_shl: __ sll (left->as_register(), count, dest->as_register()); break; | |
| 2470 case lir_shr: __ sra (left->as_register(), count, dest->as_register()); break; | |
| 2471 case lir_ushr: __ srl (left->as_register(), count, dest->as_register()); break; | |
| 2472 default: ShouldNotReachHere(); | |
| 2473 } | |
| 2474 } else if (dest->is_double_cpu()) { | |
| 2475 count = count & 63; // Java spec | |
| 2476 switch (code) { | |
| 2477 case lir_shl: __ sllx (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2478 case lir_shr: __ srax (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2479 case lir_ushr: __ srlx (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2480 default: ShouldNotReachHere(); | |
| 2481 } | |
| 2482 } else { | |
| 2483 ShouldNotReachHere(); | |
| 2484 } | |
| 2485 } | |
| 2486 | |
| 2487 | |
| 2488 void LIR_Assembler::emit_alloc_obj(LIR_OpAllocObj* op) { | |
| 2489 assert(op->tmp1()->as_register() == G1 && | |
| 2490 op->tmp2()->as_register() == G3 && | |
| 2491 op->tmp3()->as_register() == G4 && | |
| 2492 op->obj()->as_register() == O0 && | |
| 2493 op->klass()->as_register() == G5, "must be"); | |
| 2494 if (op->init_check()) { | |
|
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2495 __ ldub(op->klass()->as_register(), |
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2496 in_bytes(InstanceKlass::init_state_offset()), |
| 0 | 2497 op->tmp1()->as_register()); |
| 2498 add_debug_info_for_null_check_here(op->stub()->info()); | |
|
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2499 __ cmp(op->tmp1()->as_register(), InstanceKlass::fully_initialized); |
| 0 | 2500 __ br(Assembler::notEqual, false, Assembler::pn, *op->stub()->entry()); |
| 2501 __ delayed()->nop(); | |
| 2502 } | |
| 2503 __ allocate_object(op->obj()->as_register(), | |
| 2504 op->tmp1()->as_register(), | |
| 2505 op->tmp2()->as_register(), | |
| 2506 op->tmp3()->as_register(), | |
| 2507 op->header_size(), | |
| 2508 op->object_size(), | |
| 2509 op->klass()->as_register(), | |
| 2510 *op->stub()->entry()); | |
| 2511 __ bind(*op->stub()->continuation()); | |
| 2512 __ verify_oop(op->obj()->as_register()); | |
| 2513 } | |
| 2514 | |
| 2515 | |
| 2516 void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) { | |
| 2517 assert(op->tmp1()->as_register() == G1 && | |
| 2518 op->tmp2()->as_register() == G3 && | |
| 2519 op->tmp3()->as_register() == G4 && | |
| 2520 op->tmp4()->as_register() == O1 && | |
| 2521 op->klass()->as_register() == G5, "must be"); | |
|
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2522 |
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2523 LP64_ONLY( __ signx(op->len()->as_register()); ) |
| 0 | 2524 if (UseSlowPath || |
| 2525 (!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) || | |
| 2526 (!UseFastNewTypeArray && (op->type() != T_OBJECT && op->type() != T_ARRAY))) { | |
|
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2527 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); |
| 0 | 2528 __ delayed()->nop(); |
| 2529 } else { | |
| 2530 __ allocate_array(op->obj()->as_register(), | |
| 2531 op->len()->as_register(), | |
| 2532 op->tmp1()->as_register(), | |
| 2533 op->tmp2()->as_register(), | |
| 2534 op->tmp3()->as_register(), | |
| 2535 arrayOopDesc::header_size(op->type()), | |
|
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|
2536 type2aelembytes(op->type()), |
| 0 | 2537 op->klass()->as_register(), |
| 2538 *op->stub()->entry()); | |
| 2539 } | |
| 2540 __ bind(*op->stub()->continuation()); | |
| 2541 } | |
| 2542 | |
| 2543 | |
| 1783 | 2544 void LIR_Assembler::type_profile_helper(Register mdo, int mdo_offset_bias, |
| 2545 ciMethodData *md, ciProfileData *data, | |
| 2546 Register recv, Register tmp1, Label* update_done) { | |
| 2547 uint i; | |
| 2548 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 2549 Label next_test; | |
| 2550 // See if the receiver is receiver[n]. | |
| 2551 Address receiver_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_offset(i)) - | |
| 2552 mdo_offset_bias); | |
| 2553 __ ld_ptr(receiver_addr, tmp1); | |
| 2554 __ verify_oop(tmp1); | |
| 3839 | 2555 __ cmp_and_brx_short(recv, tmp1, Assembler::notEqual, Assembler::pt, next_test); |
| 1783 | 2556 Address data_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_count_offset(i)) - |
| 2557 mdo_offset_bias); | |
| 2558 __ ld_ptr(data_addr, tmp1); | |
| 2559 __ add(tmp1, DataLayout::counter_increment, tmp1); | |
| 2560 __ st_ptr(tmp1, data_addr); | |
| 3839 | 2561 __ ba(*update_done); |
| 1783 | 2562 __ delayed()->nop(); |
| 2563 __ bind(next_test); | |
| 2564 } | |
| 2565 | |
| 2566 // Didn't find receiver; find next empty slot and fill it in | |
| 2567 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 2568 Label next_test; | |
| 2569 Address recv_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_offset(i)) - | |
| 2570 mdo_offset_bias); | |
| 2002 | 2571 __ ld_ptr(recv_addr, tmp1); |
| 3839 | 2572 __ br_notnull_short(tmp1, Assembler::pt, next_test); |
| 1783 | 2573 __ st_ptr(recv, recv_addr); |
| 2574 __ set(DataLayout::counter_increment, tmp1); | |
| 2575 __ st_ptr(tmp1, mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_count_offset(i)) - | |
| 2576 mdo_offset_bias); | |
| 3839 | 2577 __ ba(*update_done); |
| 1783 | 2578 __ delayed()->nop(); |
| 2579 __ bind(next_test); | |
| 2580 } | |
| 2581 } | |
| 2582 | |
|
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2583 |
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2584 void LIR_Assembler::setup_md_access(ciMethod* method, int bci, |
|
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2585 ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias) { |
|
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2586 md = method->method_data_or_null(); |
|
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2587 assert(md != NULL, "Sanity"); |
|
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2588 data = md->bci_to_data(bci); |
|
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2589 assert(data != NULL, "need data for checkcast"); |
|
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2590 assert(data->is_ReceiverTypeData(), "need ReceiverTypeData for type check"); |
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2591 if (!Assembler::is_simm13(md->byte_offset_of_slot(data, DataLayout::header_offset()) + data->size_in_bytes())) { |
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2592 // The offset is large so bias the mdo by the base of the slot so |
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2593 // that the ld can use simm13s to reference the slots of the data |
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2594 mdo_offset_bias = md->byte_offset_of_slot(data, DataLayout::header_offset()); |
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2595 } |
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2596 } |
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2597 |
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2598 void LIR_Assembler::emit_typecheck_helper(LIR_OpTypeCheck *op, Label* success, Label* failure, Label* obj_is_null) { |
| 1783 | 2599 // we always need a stub for the failure case. |
| 2600 CodeStub* stub = op->stub(); | |
| 2601 Register obj = op->object()->as_register(); | |
| 2602 Register k_RInfo = op->tmp1()->as_register(); | |
| 2603 Register klass_RInfo = op->tmp2()->as_register(); | |
| 2604 Register dst = op->result_opr()->as_register(); | |
| 2605 Register Rtmp1 = op->tmp3()->as_register(); | |
| 2606 ciKlass* k = op->klass(); | |
| 2607 | |
| 2608 | |
| 2609 if (obj == k_RInfo) { | |
| 2610 k_RInfo = klass_RInfo; | |
| 2611 klass_RInfo = obj; | |
| 2612 } | |
| 2613 | |
| 2614 ciMethodData* md; | |
| 2615 ciProfileData* data; | |
| 2616 int mdo_offset_bias = 0; | |
| 2617 if (op->should_profile()) { | |
| 2618 ciMethod* method = op->profiled_method(); | |
| 2619 assert(method != NULL, "Should have method"); | |
|
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2620 setup_md_access(method, op->profiled_bci(), md, data, mdo_offset_bias); |
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2621 |
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2622 Label not_null; |
| 3839 | 2623 __ br_notnull_short(obj, Assembler::pn, not_null); |
| 1783 | 2624 Register mdo = k_RInfo; |
| 2625 Register data_val = Rtmp1; | |
|
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2626 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2627 if (mdo_offset_bias > 0) { |
| 2628 __ set(mdo_offset_bias, data_val); | |
| 2629 __ add(mdo, data_val, mdo); | |
| 2630 } | |
| 2631 Address flags_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()) - mdo_offset_bias); | |
| 2632 __ ldub(flags_addr, data_val); | |
| 2633 __ or3(data_val, BitData::null_seen_byte_constant(), data_val); | |
| 2634 __ stb(data_val, flags_addr); | |
| 3839 | 2635 __ ba(*obj_is_null); |
|
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2636 __ delayed()->nop(); |
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2637 __ bind(not_null); |
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2638 } else { |
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2639 __ br_null(obj, false, Assembler::pn, *obj_is_null); |
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2640 __ delayed()->nop(); |
| 1783 | 2641 } |
|
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2642 |
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2643 Label profile_cast_failure, profile_cast_success; |
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2644 Label *failure_target = op->should_profile() ? &profile_cast_failure : failure; |
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2645 Label *success_target = op->should_profile() ? &profile_cast_success : success; |
| 1783 | 2646 |
| 2647 // patching may screw with our temporaries on sparc, | |
| 2648 // so let's do it before loading the class | |
| 2649 if (k->is_loaded()) { | |
|
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2650 metadata2reg(k->constant_encoding(), k_RInfo); |
| 1783 | 2651 } else { |
|
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2652 klass2reg_with_patching(k_RInfo, op->info_for_patch()); |
| 1783 | 2653 } |
| 2654 assert(obj != k_RInfo, "must be different"); | |
| 2655 | |
| 2656 // get object class | |
| 2657 // not a safepoint as obj null check happens earlier | |
| 2002 | 2658 __ load_klass(obj, klass_RInfo); |
| 1783 | 2659 if (op->fast_check()) { |
| 2660 assert_different_registers(klass_RInfo, k_RInfo); | |
| 2661 __ cmp(k_RInfo, klass_RInfo); | |
| 2662 __ brx(Assembler::notEqual, false, Assembler::pt, *failure_target); | |
| 2663 __ delayed()->nop(); | |
| 2664 } else { | |
| 2665 bool need_slow_path = true; | |
| 2666 if (k->is_loaded()) { | |
|
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2667 if ((int) k->super_check_offset() != in_bytes(Klass::secondary_super_cache_offset())) |
| 1783 | 2668 need_slow_path = false; |
| 2669 // perform the fast part of the checking logic | |
| 2670 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, noreg, | |
|
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2671 (need_slow_path ? success_target : NULL), |
| 1783 | 2672 failure_target, NULL, |
| 2673 RegisterOrConstant(k->super_check_offset())); | |
| 2674 } else { | |
| 2675 // perform the fast part of the checking logic | |
|
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2676 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7, success_target, |
| 1783 | 2677 failure_target, NULL); |
| 2678 } | |
| 2679 if (need_slow_path) { | |
| 2680 // call out-of-line instance of __ check_klass_subtype_slow_path(...): | |
| 2681 assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup"); | |
| 2682 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); | |
| 2683 __ delayed()->nop(); | |
| 2684 __ cmp(G3, 0); | |
| 2685 __ br(Assembler::equal, false, Assembler::pn, *failure_target); | |
| 2686 __ delayed()->nop(); | |
|
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2687 // Fall through to success case |
| 1783 | 2688 } |
| 2689 } | |
| 2690 | |
| 2691 if (op->should_profile()) { | |
| 2692 Register mdo = klass_RInfo, recv = k_RInfo, tmp1 = Rtmp1; | |
| 2693 assert_different_registers(obj, mdo, recv, tmp1); | |
|
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2694 __ bind(profile_cast_success); |
|
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2695 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2696 if (mdo_offset_bias > 0) { |
| 2697 __ set(mdo_offset_bias, tmp1); | |
| 2698 __ add(mdo, tmp1, mdo); | |
| 2699 } | |
| 2002 | 2700 __ load_klass(obj, recv); |
|
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2701 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, success); |
| 1783 | 2702 // Jump over the failure case |
| 3839 | 2703 __ ba(*success); |
| 1783 | 2704 __ delayed()->nop(); |
| 2705 // Cast failure case | |
| 2706 __ bind(profile_cast_failure); | |
|
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2707 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2708 if (mdo_offset_bias > 0) { |
| 2709 __ set(mdo_offset_bias, tmp1); | |
| 2710 __ add(mdo, tmp1, mdo); | |
| 2711 } | |
| 2712 Address data_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); | |
| 2713 __ ld_ptr(data_addr, tmp1); | |
| 2714 __ sub(tmp1, DataLayout::counter_increment, tmp1); | |
| 2715 __ st_ptr(tmp1, data_addr); | |
| 3839 | 2716 __ ba(*failure); |
| 1783 | 2717 __ delayed()->nop(); |
| 2718 } | |
| 3839 | 2719 __ ba(*success); |
|
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2720 __ delayed()->nop(); |
| 1783 | 2721 } |
| 2722 | |
| 0 | 2723 void LIR_Assembler::emit_opTypeCheck(LIR_OpTypeCheck* op) { |
| 2724 LIR_Code code = op->code(); | |
| 2725 if (code == lir_store_check) { | |
| 2726 Register value = op->object()->as_register(); | |
| 2727 Register array = op->array()->as_register(); | |
| 2728 Register k_RInfo = op->tmp1()->as_register(); | |
| 2729 Register klass_RInfo = op->tmp2()->as_register(); | |
| 2730 Register Rtmp1 = op->tmp3()->as_register(); | |
| 2731 | |
| 2732 __ verify_oop(value); | |
| 2733 CodeStub* stub = op->stub(); | |
|
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2734 // check if it needs to be profiled |
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2735 ciMethodData* md; |
|
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2736 ciProfileData* data; |
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2737 int mdo_offset_bias = 0; |
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2738 if (op->should_profile()) { |
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2739 ciMethod* method = op->profiled_method(); |
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2740 assert(method != NULL, "Should have method"); |
|
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2741 setup_md_access(method, op->profiled_bci(), md, data, mdo_offset_bias); |
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2742 } |
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2743 Label profile_cast_success, profile_cast_failure, done; |
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2744 Label *success_target = op->should_profile() ? &profile_cast_success : &done; |
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2745 Label *failure_target = op->should_profile() ? &profile_cast_failure : stub->entry(); |
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2746 |
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2747 if (op->should_profile()) { |
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2748 Label not_null; |
| 3839 | 2749 __ br_notnull_short(value, Assembler::pn, not_null); |
|
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2750 Register mdo = k_RInfo; |
|
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2751 Register data_val = Rtmp1; |
|
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2752 metadata2reg(md->constant_encoding(), mdo); |
|
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2753 if (mdo_offset_bias > 0) { |
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2754 __ set(mdo_offset_bias, data_val); |
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2755 __ add(mdo, data_val, mdo); |
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2756 } |
|
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2757 Address flags_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()) - mdo_offset_bias); |
|
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2758 __ ldub(flags_addr, data_val); |
|
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2759 __ or3(data_val, BitData::null_seen_byte_constant(), data_val); |
|
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2760 __ stb(data_val, flags_addr); |
| 3839 | 2761 __ ba_short(done); |
|
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2762 __ bind(not_null); |
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2763 } else { |
| 3839 | 2764 __ br_null_short(value, Assembler::pn, done); |
|
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2765 } |
| 2002 | 2766 add_debug_info_for_null_check_here(op->info_for_exception()); |
| 2767 __ load_klass(array, k_RInfo); | |
| 2768 __ load_klass(value, klass_RInfo); | |
| 0 | 2769 |
| 2770 // get instance klass | |
|
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|
2771 __ ld_ptr(Address(k_RInfo, objArrayKlass::element_klass_offset()), k_RInfo); |
|
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2772 // perform the fast part of the checking logic |
|
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2773 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7, success_target, failure_target, NULL); |
|
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2774 |
|
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2775 // call out-of-line instance of __ check_klass_subtype_slow_path(...): |
|
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|
2776 assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup"); |
| 0 | 2777 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); |
| 2778 __ delayed()->nop(); | |
| 2779 __ cmp(G3, 0); | |
|
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2780 __ br(Assembler::equal, false, Assembler::pn, *failure_target); |
| 0 | 2781 __ delayed()->nop(); |
|
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2782 // fall through to the success case |
|
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2783 |
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2784 if (op->should_profile()) { |
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|
2785 Register mdo = klass_RInfo, recv = k_RInfo, tmp1 = Rtmp1; |
|
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2786 assert_different_registers(value, mdo, recv, tmp1); |
|
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2787 __ bind(profile_cast_success); |
|
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2788 metadata2reg(md->constant_encoding(), mdo); |
|
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2789 if (mdo_offset_bias > 0) { |
|
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2790 __ set(mdo_offset_bias, tmp1); |
|
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2791 __ add(mdo, tmp1, mdo); |
|
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2792 } |
| 2002 | 2793 __ load_klass(value, recv); |
|
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2794 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, &done); |
| 3839 | 2795 __ ba_short(done); |
|
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2796 // Cast failure case |
|
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2797 __ bind(profile_cast_failure); |
|
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2798 metadata2reg(md->constant_encoding(), mdo); |
|
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2799 if (mdo_offset_bias > 0) { |
|
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|
2800 __ set(mdo_offset_bias, tmp1); |
|
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2801 __ add(mdo, tmp1, mdo); |
|
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2802 } |
|
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2803 Address data_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); |
|
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2804 __ ld_ptr(data_addr, tmp1); |
|
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2805 __ sub(tmp1, DataLayout::counter_increment, tmp1); |
|
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2806 __ st_ptr(tmp1, data_addr); |
| 3839 | 2807 __ ba(*stub->entry()); |
|
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2808 __ delayed()->nop(); |
|
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|
2809 } |
| 0 | 2810 __ bind(done); |
|
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2811 } else if (code == lir_checkcast) { |
|
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2812 Register obj = op->object()->as_register(); |
|
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2813 Register dst = op->result_opr()->as_register(); |
|
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2814 Label success; |
|
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2815 emit_typecheck_helper(op, &success, op->stub()->entry(), &success); |
|
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2816 __ bind(success); |
|
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|
2817 __ mov(obj, dst); |
| 0 | 2818 } else if (code == lir_instanceof) { |
| 2819 Register obj = op->object()->as_register(); | |
| 2820 Register dst = op->result_opr()->as_register(); | |
|
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2821 Label success, failure, done; |
|
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2822 emit_typecheck_helper(op, &success, &failure, &failure); |
|
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2823 __ bind(failure); |
|
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|
2824 __ set(0, dst); |
| 3839 | 2825 __ ba_short(done); |
|
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2826 __ bind(success); |
|
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|
2827 __ set(1, dst); |
|
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|
2828 __ bind(done); |
| 0 | 2829 } else { |
| 2830 ShouldNotReachHere(); | |
| 2831 } | |
| 2832 | |
| 2833 } | |
| 2834 | |
| 2835 | |
| 2836 void LIR_Assembler::emit_compare_and_swap(LIR_OpCompareAndSwap* op) { | |
| 2837 if (op->code() == lir_cas_long) { | |
| 2838 assert(VM_Version::supports_cx8(), "wrong machine"); | |
| 2839 Register addr = op->addr()->as_pointer_register(); | |
| 2840 Register cmp_value_lo = op->cmp_value()->as_register_lo(); | |
| 2841 Register cmp_value_hi = op->cmp_value()->as_register_hi(); | |
| 2842 Register new_value_lo = op->new_value()->as_register_lo(); | |
| 2843 Register new_value_hi = op->new_value()->as_register_hi(); | |
| 2844 Register t1 = op->tmp1()->as_register(); | |
| 2845 Register t2 = op->tmp2()->as_register(); | |
| 2846 #ifdef _LP64 | |
| 2847 __ mov(cmp_value_lo, t1); | |
| 2848 __ mov(new_value_lo, t2); | |
|
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|
2849 // perform the compare and swap operation |
|
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|
2850 __ casx(addr, t1, t2); |
|
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|
2851 // generate condition code - if the swap succeeded, t2 ("new value" reg) was |
|
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|
2852 // overwritten with the original value in "addr" and will be equal to t1. |
|
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|
2853 __ cmp(t1, t2); |
| 0 | 2854 #else |
| 2855 // move high and low halves of long values into single registers | |
| 2856 __ sllx(cmp_value_hi, 32, t1); // shift high half into temp reg | |
| 2857 __ srl(cmp_value_lo, 0, cmp_value_lo); // clear upper 32 bits of low half | |
| 2858 __ or3(t1, cmp_value_lo, t1); // t1 holds 64-bit compare value | |
| 2859 __ sllx(new_value_hi, 32, t2); | |
| 2860 __ srl(new_value_lo, 0, new_value_lo); | |
| 2861 __ or3(t2, new_value_lo, t2); // t2 holds 64-bit value to swap | |
| 2862 // perform the compare and swap operation | |
| 2863 __ casx(addr, t1, t2); | |
| 2864 // generate condition code - if the swap succeeded, t2 ("new value" reg) was | |
| 2865 // overwritten with the original value in "addr" and will be equal to t1. | |
|
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|
2866 // Produce icc flag for 32bit. |
|
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|
2867 __ sub(t1, t2, t2); |
|
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|
2868 __ srlx(t2, 32, t1); |
|
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|
2869 __ orcc(t2, t1, G0); |
|
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|
2870 #endif |
| 0 | 2871 } else if (op->code() == lir_cas_int || op->code() == lir_cas_obj) { |
| 2872 Register addr = op->addr()->as_pointer_register(); | |
| 2873 Register cmp_value = op->cmp_value()->as_register(); | |
| 2874 Register new_value = op->new_value()->as_register(); | |
| 2875 Register t1 = op->tmp1()->as_register(); | |
| 2876 Register t2 = op->tmp2()->as_register(); | |
| 2877 __ mov(cmp_value, t1); | |
| 2878 __ mov(new_value, t2); | |
| 2879 if (op->code() == lir_cas_obj) { | |
| 2002 | 2880 if (UseCompressedOops) { |
| 2881 __ encode_heap_oop(t1); | |
| 2882 __ encode_heap_oop(t2); | |
| 0 | 2883 __ cas(addr, t1, t2); |
| 2002 | 2884 } else { |
| 2010 | 2885 __ cas_ptr(addr, t1, t2); |
| 0 | 2886 } |
| 2002 | 2887 } else { |
| 2888 __ cas(addr, t1, t2); | |
| 2889 } | |
| 0 | 2890 __ cmp(t1, t2); |
| 2891 } else { | |
| 2892 Unimplemented(); | |
| 2893 } | |
| 2894 } | |
| 2895 | |
| 2896 void LIR_Assembler::set_24bit_FPU() { | |
| 2897 Unimplemented(); | |
| 2898 } | |
| 2899 | |
| 2900 | |
| 2901 void LIR_Assembler::reset_FPU() { | |
| 2902 Unimplemented(); | |
| 2903 } | |
| 2904 | |
| 2905 | |
| 2906 void LIR_Assembler::breakpoint() { | |
| 2907 __ breakpoint_trap(); | |
| 2908 } | |
| 2909 | |
| 2910 | |
| 2911 void LIR_Assembler::push(LIR_Opr opr) { | |
| 2912 Unimplemented(); | |
| 2913 } | |
| 2914 | |
| 2915 | |
| 2916 void LIR_Assembler::pop(LIR_Opr opr) { | |
| 2917 Unimplemented(); | |
| 2918 } | |
| 2919 | |
| 2920 | |
| 2921 void LIR_Assembler::monitor_address(int monitor_no, LIR_Opr dst_opr) { | |
| 2922 Address mon_addr = frame_map()->address_for_monitor_lock(monitor_no); | |
| 2923 Register dst = dst_opr->as_register(); | |
| 2924 Register reg = mon_addr.base(); | |
| 2925 int offset = mon_addr.disp(); | |
| 2926 // compute pointer to BasicLock | |
| 2927 if (mon_addr.is_simm13()) { | |
| 2928 __ add(reg, offset, dst); | |
| 2929 } else { | |
| 2930 __ set(offset, dst); | |
| 2931 __ add(dst, reg, dst); | |
| 2932 } | |
| 2933 } | |
| 2934 | |
| 2935 | |
| 2936 void LIR_Assembler::emit_lock(LIR_OpLock* op) { | |
| 2937 Register obj = op->obj_opr()->as_register(); | |
| 2938 Register hdr = op->hdr_opr()->as_register(); | |
| 2939 Register lock = op->lock_opr()->as_register(); | |
| 2940 | |
| 2941 // obj may not be an oop | |
| 2942 if (op->code() == lir_lock) { | |
| 2943 MonitorEnterStub* stub = (MonitorEnterStub*)op->stub(); | |
| 2944 if (UseFastLocking) { | |
| 2945 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 2946 // add debug info for NullPointerException only if one is possible | |
| 2947 if (op->info() != NULL) { | |
| 2948 add_debug_info_for_null_check_here(op->info()); | |
| 2949 } | |
| 2950 __ lock_object(hdr, obj, lock, op->scratch_opr()->as_register(), *op->stub()->entry()); | |
| 2951 } else { | |
| 2952 // always do slow locking | |
| 2953 // note: the slow locking code could be inlined here, however if we use | |
| 2954 // slow locking, speed doesn't matter anyway and this solution is | |
| 2955 // simpler and requires less duplicated code - additionally, the | |
| 2956 // slow locking code is the same in either case which simplifies | |
| 2957 // debugging | |
| 2958 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); | |
| 2959 __ delayed()->nop(); | |
| 2960 } | |
| 2961 } else { | |
| 2962 assert (op->code() == lir_unlock, "Invalid code, expected lir_unlock"); | |
| 2963 if (UseFastLocking) { | |
| 2964 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 2965 __ unlock_object(hdr, obj, lock, *op->stub()->entry()); | |
| 2966 } else { | |
| 2967 // always do slow unlocking | |
| 2968 // note: the slow unlocking code could be inlined here, however if we use | |
| 2969 // slow unlocking, speed doesn't matter anyway and this solution is | |
| 2970 // simpler and requires less duplicated code - additionally, the | |
| 2971 // slow unlocking code is the same in either case which simplifies | |
| 2972 // debugging | |
| 2973 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); | |
| 2974 __ delayed()->nop(); | |
| 2975 } | |
| 2976 } | |
| 2977 __ bind(*op->stub()->continuation()); | |
| 2978 } | |
| 2979 | |
| 2980 | |
| 2981 void LIR_Assembler::emit_profile_call(LIR_OpProfileCall* op) { | |
| 2982 ciMethod* method = op->profiled_method(); | |
| 2983 int bci = op->profiled_bci(); | |
|
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|
2984 ciMethod* callee = op->profiled_callee(); |
| 0 | 2985 |
| 2986 // Update counter for all call types | |
|
2007
5ddfcf4b079e
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diff
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|
2987 ciMethodData* md = method->method_data_or_null(); |
|
5ddfcf4b079e
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2002
diff
changeset
|
2988 assert(md != NULL, "Sanity"); |
| 0 | 2989 ciProfileData* data = md->bci_to_data(bci); |
| 2990 assert(data->is_CounterData(), "need CounterData for calls"); | |
| 2991 assert(op->mdo()->is_single_cpu(), "mdo must be allocated"); | |
| 1783 | 2992 Register mdo = op->mdo()->as_register(); |
| 2993 #ifdef _LP64 | |
| 2994 assert(op->tmp1()->is_double_cpu(), "tmp1 must be allocated"); | |
| 2995 Register tmp1 = op->tmp1()->as_register_lo(); | |
| 2996 #else | |
| 0 | 2997 assert(op->tmp1()->is_single_cpu(), "tmp1 must be allocated"); |
| 2998 Register tmp1 = op->tmp1()->as_register(); | |
| 1783 | 2999 #endif |
|
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|
3000 metadata2reg(md->constant_encoding(), mdo); |
| 0 | 3001 int mdo_offset_bias = 0; |
| 3002 if (!Assembler::is_simm13(md->byte_offset_of_slot(data, CounterData::count_offset()) + | |
| 3003 data->size_in_bytes())) { | |
| 3004 // The offset is large so bias the mdo by the base of the slot so | |
| 3005 // that the ld can use simm13s to reference the slots of the data | |
| 3006 mdo_offset_bias = md->byte_offset_of_slot(data, CounterData::count_offset()); | |
| 3007 __ set(mdo_offset_bias, O7); | |
| 3008 __ add(mdo, O7, mdo); | |
| 3009 } | |
| 3010 | |
| 727 | 3011 Address counter_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); |
| 0 | 3012 Bytecodes::Code bc = method->java_code_at_bci(bci); |
|
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|
3013 const bool callee_is_static = callee->is_loaded() && callee->is_static(); |
| 0 | 3014 // Perform additional virtual call profiling for invokevirtual and |
| 3015 // invokeinterface bytecodes | |
| 3016 if ((bc == Bytecodes::_invokevirtual || bc == Bytecodes::_invokeinterface) && | |
|
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|
3017 !callee_is_static && // required for optimized MH invokes |
| 1783 | 3018 C1ProfileVirtualCalls) { |
| 0 | 3019 assert(op->recv()->is_single_cpu(), "recv must be allocated"); |
| 3020 Register recv = op->recv()->as_register(); | |
| 3021 assert_different_registers(mdo, tmp1, recv); | |
| 3022 assert(data->is_VirtualCallData(), "need VirtualCallData for virtual calls"); | |
| 3023 ciKlass* known_klass = op->known_holder(); | |
| 1783 | 3024 if (C1OptimizeVirtualCallProfiling && known_klass != NULL) { |
| 0 | 3025 // We know the type that will be seen at this call site; we can |
|
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|
3026 // statically update the MethodData* rather than needing to do |
| 0 | 3027 // dynamic tests on the receiver type |
| 3028 | |
| 3029 // NOTE: we should probably put a lock around this search to | |
| 3030 // avoid collisions by concurrent compilations | |
| 3031 ciVirtualCallData* vc_data = (ciVirtualCallData*) data; | |
| 3032 uint i; | |
| 3033 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 3034 ciKlass* receiver = vc_data->receiver(i); | |
| 3035 if (known_klass->equals(receiver)) { | |
| 727 | 3036 Address data_addr(mdo, md->byte_offset_of_slot(data, |
| 3037 VirtualCallData::receiver_count_offset(i)) - | |
| 0 | 3038 mdo_offset_bias); |
| 1783 | 3039 __ ld_ptr(data_addr, tmp1); |
| 0 | 3040 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3041 __ st_ptr(tmp1, data_addr); |
| 0 | 3042 return; |
| 3043 } | |
| 3044 } | |
| 3045 | |
| 3046 // Receiver type not found in profile data; select an empty slot | |
| 3047 | |
| 3048 // Note that this is less efficient than it should be because it | |
| 3049 // always does a write to the receiver part of the | |
| 3050 // VirtualCallData rather than just the first time | |
| 3051 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 3052 ciKlass* receiver = vc_data->receiver(i); | |
| 3053 if (receiver == NULL) { | |
| 727 | 3054 Address recv_addr(mdo, md->byte_offset_of_slot(data, VirtualCallData::receiver_offset(i)) - |
| 0 | 3055 mdo_offset_bias); |
|
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|
3056 metadata2reg(known_klass->constant_encoding(), tmp1); |
| 0 | 3057 __ st_ptr(tmp1, recv_addr); |
| 727 | 3058 Address data_addr(mdo, md->byte_offset_of_slot(data, VirtualCallData::receiver_count_offset(i)) - |
| 0 | 3059 mdo_offset_bias); |
| 1783 | 3060 __ ld_ptr(data_addr, tmp1); |
| 0 | 3061 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3062 __ st_ptr(tmp1, data_addr); |
| 0 | 3063 return; |
| 3064 } | |
| 3065 } | |
| 3066 } else { | |
| 2002 | 3067 __ load_klass(recv, recv); |
| 0 | 3068 Label update_done; |
| 1783 | 3069 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, &update_done); |
|
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1204
diff
changeset
|
3070 // Receiver did not match any saved receiver and there is no empty row for it. |
|
576e77447e3c
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1204
diff
changeset
|
3071 // Increment total counter to indicate polymorphic case. |
| 1783 | 3072 __ ld_ptr(counter_addr, tmp1); |
|
1251
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1204
diff
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|
3073 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3074 __ st_ptr(tmp1, counter_addr); |
| 0 | 3075 |
| 3076 __ bind(update_done); | |
| 3077 } | |
|
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|
3078 } else { |
|
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diff
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|
3079 // Static call |
| 1783 | 3080 __ ld_ptr(counter_addr, tmp1); |
|
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|
3081 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3082 __ st_ptr(tmp1, counter_addr); |
| 0 | 3083 } |
| 3084 } | |
| 3085 | |
| 3086 void LIR_Assembler::align_backward_branch_target() { | |
| 1365 | 3087 __ align(OptoLoopAlignment); |
| 0 | 3088 } |
| 3089 | |
| 3090 | |
| 3091 void LIR_Assembler::emit_delay(LIR_OpDelay* op) { | |
| 3092 // make sure we are expecting a delay | |
| 3093 // this has the side effect of clearing the delay state | |
| 3094 // so we can use _masm instead of _masm->delayed() to do the | |
| 3095 // code generation. | |
| 3096 __ delayed(); | |
| 3097 | |
| 3098 // make sure we only emit one instruction | |
| 3099 int offset = code_offset(); | |
| 3100 op->delay_op()->emit_code(this); | |
| 3101 #ifdef ASSERT | |
| 3102 if (code_offset() - offset != NativeInstruction::nop_instruction_size) { | |
| 3103 op->delay_op()->print(); | |
| 3104 } | |
| 3105 assert(code_offset() - offset == NativeInstruction::nop_instruction_size, | |
| 3106 "only one instruction can go in a delay slot"); | |
| 3107 #endif | |
| 3108 | |
| 3109 // we may also be emitting the call info for the instruction | |
| 3110 // which we are the delay slot of. | |
| 1564 | 3111 CodeEmitInfo* call_info = op->call_info(); |
| 0 | 3112 if (call_info) { |
| 3113 add_call_info(code_offset(), call_info); | |
| 3114 } | |
| 3115 | |
| 3116 if (VerifyStackAtCalls) { | |
| 3117 _masm->sub(FP, SP, O7); | |
| 3118 _masm->cmp(O7, initial_frame_size_in_bytes()); | |
| 3119 _masm->trap(Assembler::notEqual, Assembler::ptr_cc, G0, ST_RESERVED_FOR_USER_0+2 ); | |
| 3120 } | |
| 3121 } | |
| 3122 | |
| 3123 | |
| 3124 void LIR_Assembler::negate(LIR_Opr left, LIR_Opr dest) { | |
| 3125 assert(left->is_register(), "can only handle registers"); | |
| 3126 | |
| 3127 if (left->is_single_cpu()) { | |
| 3128 __ neg(left->as_register(), dest->as_register()); | |
| 3129 } else if (left->is_single_fpu()) { | |
| 3130 __ fneg(FloatRegisterImpl::S, left->as_float_reg(), dest->as_float_reg()); | |
| 3131 } else if (left->is_double_fpu()) { | |
| 3132 __ fneg(FloatRegisterImpl::D, left->as_double_reg(), dest->as_double_reg()); | |
| 3133 } else { | |
| 3134 assert (left->is_double_cpu(), "Must be a long"); | |
| 3135 Register Rlow = left->as_register_lo(); | |
| 3136 Register Rhi = left->as_register_hi(); | |
| 3137 #ifdef _LP64 | |
| 3138 __ sub(G0, Rlow, dest->as_register_lo()); | |
| 3139 #else | |
| 3140 __ subcc(G0, Rlow, dest->as_register_lo()); | |
| 3141 __ subc (G0, Rhi, dest->as_register_hi()); | |
| 3142 #endif | |
| 3143 } | |
| 3144 } | |
| 3145 | |
| 3146 | |
| 3147 void LIR_Assembler::fxch(int i) { | |
| 3148 Unimplemented(); | |
| 3149 } | |
| 3150 | |
| 3151 void LIR_Assembler::fld(int i) { | |
| 3152 Unimplemented(); | |
| 3153 } | |
| 3154 | |
| 3155 void LIR_Assembler::ffree(int i) { | |
| 3156 Unimplemented(); | |
| 3157 } | |
| 3158 | |
| 3159 void LIR_Assembler::rt_call(LIR_Opr result, address dest, | |
| 3160 const LIR_OprList* args, LIR_Opr tmp, CodeEmitInfo* info) { | |
| 3161 | |
| 3162 // if tmp is invalid, then the function being called doesn't destroy the thread | |
| 3163 if (tmp->is_valid()) { | |
| 3164 __ save_thread(tmp->as_register()); | |
| 3165 } | |
| 3166 __ call(dest, relocInfo::runtime_call_type); | |
| 3167 __ delayed()->nop(); | |
| 3168 if (info != NULL) { | |
| 3169 add_call_info_here(info); | |
| 3170 } | |
| 3171 if (tmp->is_valid()) { | |
| 3172 __ restore_thread(tmp->as_register()); | |
| 3173 } | |
| 3174 | |
| 3175 #ifdef ASSERT | |
| 3176 __ verify_thread(); | |
| 3177 #endif // ASSERT | |
| 3178 } | |
| 3179 | |
| 3180 | |
| 3181 void LIR_Assembler::volatile_move_op(LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info) { | |
| 3182 #ifdef _LP64 | |
| 3183 ShouldNotReachHere(); | |
| 3184 #endif | |
| 3185 | |
| 3186 NEEDS_CLEANUP; | |
| 3187 if (type == T_LONG) { | |
| 3188 LIR_Address* mem_addr = dest->is_address() ? dest->as_address_ptr() : src->as_address_ptr(); | |
| 3189 | |
| 3190 // (extended to allow indexed as well as constant displaced for JSR-166) | |
| 3191 Register idx = noreg; // contains either constant offset or index | |
| 3192 | |
| 3193 int disp = mem_addr->disp(); | |
| 3194 if (mem_addr->index() == LIR_OprFact::illegalOpr) { | |
| 3195 if (!Assembler::is_simm13(disp)) { | |
| 3196 idx = O7; | |
| 3197 __ set(disp, idx); | |
| 3198 } | |
| 3199 } else { | |
| 3200 assert(disp == 0, "not both indexed and disp"); | |
| 3201 idx = mem_addr->index()->as_register(); | |
| 3202 } | |
| 3203 | |
| 3204 int null_check_offset = -1; | |
| 3205 | |
| 3206 Register base = mem_addr->base()->as_register(); | |
| 3207 if (src->is_register() && dest->is_address()) { | |
| 3208 // G4 is high half, G5 is low half | |
| 3209 if (VM_Version::v9_instructions_work()) { | |
| 3210 // clear the top bits of G5, and scale up G4 | |
| 3211 __ srl (src->as_register_lo(), 0, G5); | |
| 3212 __ sllx(src->as_register_hi(), 32, G4); | |
| 3213 // combine the two halves into the 64 bits of G4 | |
| 3214 __ or3(G4, G5, G4); | |
| 3215 null_check_offset = __ offset(); | |
| 3216 if (idx == noreg) { | |
| 3217 __ stx(G4, base, disp); | |
| 3218 } else { | |
| 3219 __ stx(G4, base, idx); | |
| 3220 } | |
| 3221 } else { | |
| 3222 __ mov (src->as_register_hi(), G4); | |
| 3223 __ mov (src->as_register_lo(), G5); | |
| 3224 null_check_offset = __ offset(); | |
| 3225 if (idx == noreg) { | |
| 3226 __ std(G4, base, disp); | |
| 3227 } else { | |
| 3228 __ std(G4, base, idx); | |
| 3229 } | |
| 3230 } | |
| 3231 } else if (src->is_address() && dest->is_register()) { | |
| 3232 null_check_offset = __ offset(); | |
| 3233 if (VM_Version::v9_instructions_work()) { | |
| 3234 if (idx == noreg) { | |
| 3235 __ ldx(base, disp, G5); | |
| 3236 } else { | |
| 3237 __ ldx(base, idx, G5); | |
| 3238 } | |
| 3239 __ srax(G5, 32, dest->as_register_hi()); // fetch the high half into hi | |
| 3240 __ mov (G5, dest->as_register_lo()); // copy low half into lo | |
| 3241 } else { | |
| 3242 if (idx == noreg) { | |
| 3243 __ ldd(base, disp, G4); | |
| 3244 } else { | |
| 3245 __ ldd(base, idx, G4); | |
| 3246 } | |
| 3247 // G4 is high half, G5 is low half | |
| 3248 __ mov (G4, dest->as_register_hi()); | |
| 3249 __ mov (G5, dest->as_register_lo()); | |
| 3250 } | |
| 3251 } else { | |
| 3252 Unimplemented(); | |
| 3253 } | |
| 3254 if (info != NULL) { | |
| 3255 add_debug_info_for_null_check(null_check_offset, info); | |
| 3256 } | |
| 3257 | |
| 3258 } else { | |
| 3259 // use normal move for all other volatiles since they don't need | |
| 3260 // special handling to remain atomic. | |
| 2002 | 3261 move_op(src, dest, type, lir_patch_none, info, false, false, false); |
| 0 | 3262 } |
| 3263 } | |
| 3264 | |
| 3265 void LIR_Assembler::membar() { | |
| 3266 // only StoreLoad membars are ever explicitly needed on sparcs in TSO mode | |
| 3267 __ membar( Assembler::Membar_mask_bits(Assembler::StoreLoad) ); | |
| 3268 } | |
| 3269 | |
| 3270 void LIR_Assembler::membar_acquire() { | |
| 3271 // no-op on TSO | |
| 3272 } | |
| 3273 | |
| 3274 void LIR_Assembler::membar_release() { | |
| 3275 // no-op on TSO | |
| 3276 } | |
| 3277 | |
|
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|
3278 void LIR_Assembler::membar_loadload() { |
|
701a83c86f28
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4808
diff
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|
3279 // no-op |
|
701a83c86f28
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4808
diff
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|
3280 //__ membar(Assembler::Membar_mask_bits(Assembler::loadload)); |
|
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7120481: storeStore barrier in constructor with final field
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parents:
4808
diff
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|
3281 } |
|
701a83c86f28
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diff
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|
3282 |
|
701a83c86f28
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diff
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|
3283 void LIR_Assembler::membar_storestore() { |
|
701a83c86f28
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4808
diff
changeset
|
3284 // no-op |
|
701a83c86f28
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4808
diff
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|
3285 //__ membar(Assembler::Membar_mask_bits(Assembler::storestore)); |
|
701a83c86f28
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jiangli
parents:
4808
diff
changeset
|
3286 } |
|
701a83c86f28
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4808
diff
changeset
|
3287 |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4808
diff
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|
3288 void LIR_Assembler::membar_loadstore() { |
|
701a83c86f28
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4808
diff
changeset
|
3289 // no-op |
|
701a83c86f28
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jiangli
parents:
4808
diff
changeset
|
3290 //__ membar(Assembler::Membar_mask_bits(Assembler::loadstore)); |
|
701a83c86f28
7120481: storeStore barrier in constructor with final field
jiangli
parents:
4808
diff
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|
3291 } |
|
701a83c86f28
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4808
diff
changeset
|
3292 |
|
701a83c86f28
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4808
diff
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|
3293 void LIR_Assembler::membar_storeload() { |
|
701a83c86f28
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jiangli
parents:
4808
diff
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|
3294 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); |
|
701a83c86f28
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jiangli
parents:
4808
diff
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|
3295 } |
|
701a83c86f28
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|
3296 |
|
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|
3297 |
| 1783 | 3298 // Pack two sequential registers containing 32 bit values |
| 0 | 3299 // into a single 64 bit register. |
| 1783 | 3300 // src and src->successor() are packed into dst |
| 3301 // src and dst may be the same register. | |
| 3302 // Note: src is destroyed | |
| 3303 void LIR_Assembler::pack64(LIR_Opr src, LIR_Opr dst) { | |
| 3304 Register rs = src->as_register(); | |
| 3305 Register rd = dst->as_register_lo(); | |
| 0 | 3306 __ sllx(rs, 32, rs); |
| 3307 __ srl(rs->successor(), 0, rs->successor()); | |
| 3308 __ or3(rs, rs->successor(), rd); | |
| 3309 } | |
| 3310 | |
| 1783 | 3311 // Unpack a 64 bit value in a register into |
| 0 | 3312 // two sequential registers. |
| 1783 | 3313 // src is unpacked into dst and dst->successor() |
| 3314 void LIR_Assembler::unpack64(LIR_Opr src, LIR_Opr dst) { | |
| 3315 Register rs = src->as_register_lo(); | |
| 3316 Register rd = dst->as_register_hi(); | |
| 3317 assert_different_registers(rs, rd, rd->successor()); | |
| 3318 __ srlx(rs, 32, rd); | |
| 3319 __ srl (rs, 0, rd->successor()); | |
| 0 | 3320 } |
| 3321 | |
| 3322 | |
| 3323 void LIR_Assembler::leal(LIR_Opr addr_opr, LIR_Opr dest) { | |
| 3324 LIR_Address* addr = addr_opr->as_address_ptr(); | |
| 3325 assert(addr->index()->is_illegal() && addr->scale() == LIR_Address::times_1 && Assembler::is_simm13(addr->disp()), "can't handle complex addresses yet"); | |
| 1783 | 3326 |
| 3327 __ add(addr->base()->as_pointer_register(), addr->disp(), dest->as_pointer_register()); | |
| 0 | 3328 } |
| 3329 | |
| 3330 | |
| 3331 void LIR_Assembler::get_thread(LIR_Opr result_reg) { | |
| 3332 assert(result_reg->is_register(), "check"); | |
| 3333 __ mov(G2_thread, result_reg->as_register()); | |
| 3334 } | |
| 3335 | |
| 3336 | |
| 3337 void LIR_Assembler::peephole(LIR_List* lir) { | |
| 3338 LIR_OpList* inst = lir->instructions_list(); | |
| 3339 for (int i = 0; i < inst->length(); i++) { | |
| 3340 LIR_Op* op = inst->at(i); | |
| 3341 switch (op->code()) { | |
| 3342 case lir_cond_float_branch: | |
| 3343 case lir_branch: { | |
| 3344 LIR_OpBranch* branch = op->as_OpBranch(); | |
| 3345 assert(branch->info() == NULL, "shouldn't be state on branches anymore"); | |
| 3346 LIR_Op* delay_op = NULL; | |
| 3347 // we'd like to be able to pull following instructions into | |
| 3348 // this slot but we don't know enough to do it safely yet so | |
| 3349 // only optimize block to block control flow. | |
| 3350 if (LIRFillDelaySlots && branch->block()) { | |
| 3351 LIR_Op* prev = inst->at(i - 1); | |
| 3352 if (prev && LIR_Assembler::is_single_instruction(prev) && prev->info() == NULL) { | |
| 3353 // swap previous instruction into delay slot | |
| 3354 inst->at_put(i - 1, op); | |
| 3355 inst->at_put(i, new LIR_OpDelay(prev, op->info())); | |
| 3356 #ifndef PRODUCT | |
| 3357 if (LIRTracePeephole) { | |
| 3358 tty->print_cr("delayed"); | |
| 3359 inst->at(i - 1)->print(); | |
| 3360 inst->at(i)->print(); | |
| 1564 | 3361 tty->cr(); |
| 0 | 3362 } |
| 3363 #endif | |
| 3364 continue; | |
| 3365 } | |
| 3366 } | |
| 3367 | |
| 3368 if (!delay_op) { | |
| 3369 delay_op = new LIR_OpDelay(new LIR_Op0(lir_nop), NULL); | |
| 3370 } | |
| 3371 inst->insert_before(i + 1, delay_op); | |
| 3372 break; | |
| 3373 } | |
| 3374 case lir_static_call: | |
| 3375 case lir_virtual_call: | |
| 3376 case lir_icvirtual_call: | |
| 1564 | 3377 case lir_optvirtual_call: |
| 3378 case lir_dynamic_call: { | |
| 0 | 3379 LIR_Op* prev = inst->at(i - 1); |
| 3380 if (LIRFillDelaySlots && prev && prev->code() == lir_move && prev->info() == NULL && | |
| 3381 (op->code() != lir_virtual_call || | |
| 3382 !prev->result_opr()->is_single_cpu() || | |
| 3383 prev->result_opr()->as_register() != O0) && | |
| 3384 LIR_Assembler::is_single_instruction(prev)) { | |
| 3385 // Only moves without info can be put into the delay slot. | |
| 3386 // Also don't allow the setup of the receiver in the delay | |
| 3387 // slot for vtable calls. | |
| 3388 inst->at_put(i - 1, op); | |
| 3389 inst->at_put(i, new LIR_OpDelay(prev, op->info())); | |
| 3390 #ifndef PRODUCT | |
| 3391 if (LIRTracePeephole) { | |
| 3392 tty->print_cr("delayed"); | |
| 3393 inst->at(i - 1)->print(); | |
| 3394 inst->at(i)->print(); | |
| 1564 | 3395 tty->cr(); |
| 0 | 3396 } |
| 3397 #endif | |
| 1783 | 3398 } else { |
| 3399 LIR_Op* delay_op = new LIR_OpDelay(new LIR_Op0(lir_nop), op->as_OpJavaCall()->info()); | |
| 3400 inst->insert_before(i + 1, delay_op); | |
| 3401 i++; | |
| 0 | 3402 } |
| 3403 | |
| 1783 | 3404 #if defined(TIERED) && !defined(_LP64) |
| 3405 // fixup the return value from G1 to O0/O1 for long returns. | |
| 3406 // It's done here instead of in LIRGenerator because there's | |
| 3407 // such a mismatch between the single reg and double reg | |
| 3408 // calling convention. | |
| 3409 LIR_OpJavaCall* callop = op->as_OpJavaCall(); | |
| 3410 if (callop->result_opr() == FrameMap::out_long_opr) { | |
| 3411 LIR_OpJavaCall* call; | |
| 3412 LIR_OprList* arguments = new LIR_OprList(callop->arguments()->length()); | |
| 3413 for (int a = 0; a < arguments->length(); a++) { | |
| 3414 arguments[a] = callop->arguments()[a]; | |
| 3415 } | |
| 3416 if (op->code() == lir_virtual_call) { | |
| 3417 call = new LIR_OpJavaCall(op->code(), callop->method(), callop->receiver(), FrameMap::g1_long_single_opr, | |
| 3418 callop->vtable_offset(), arguments, callop->info()); | |
| 3419 } else { | |
| 3420 call = new LIR_OpJavaCall(op->code(), callop->method(), callop->receiver(), FrameMap::g1_long_single_opr, | |
| 3421 callop->addr(), arguments, callop->info()); | |
| 3422 } | |
| 3423 inst->at_put(i - 1, call); | |
| 3424 inst->insert_before(i + 1, new LIR_Op1(lir_unpack64, FrameMap::g1_long_single_opr, callop->result_opr(), | |
| 3425 T_LONG, lir_patch_none, NULL)); | |
| 3426 } | |
| 3427 #endif | |
| 0 | 3428 break; |
| 3429 } | |
| 3430 } | |
| 3431 } | |
| 3432 } | |
| 3433 | |
| 3434 | |
| 3435 | |
| 3436 | |
| 3437 #undef __ |