Mercurial > hg > truffle
annotate src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp @ 6851:94e9408dbf50
8000753: compiler/6912517 crashes on 64bit sparc with compressed oops off
Summary: code generated by c1 for getClass intrinsic broken when klass field is loaded on 64bit with compressed klass off.
Reviewed-by: kvn
| author | roland |
|---|---|
| date | Thu, 11 Oct 2012 18:21:01 +0200 |
| parents | 8e47bac5643a |
| children | d804e148cff8 |
| 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 | |
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108 if (UseCompressedKlassPointers) { |
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109 if (src->is_address() && !src->is_stack() && src->type() == T_ADDRESS && |
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110 src->as_address_ptr()->disp() == oopDesc::klass_offset_in_bytes()) return false; |
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111 } |
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112 |
| 0 | 113 if (dst->is_register()) { |
| 114 if (src->is_address() && Assembler::is_simm13(src->as_address_ptr()->disp())) { | |
| 115 return !PatchALot; | |
| 116 } else if (src->is_single_stack()) { | |
| 117 return true; | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 if (src->is_register()) { | |
| 122 if (dst->is_address() && Assembler::is_simm13(dst->as_address_ptr()->disp())) { | |
| 123 return !PatchALot; | |
| 124 } else if (dst->is_single_stack()) { | |
| 125 return true; | |
| 126 } | |
| 127 } | |
| 128 | |
| 129 if (dst->is_register() && | |
| 130 ((src->is_register() && src->is_single_word() && src->is_same_type(dst)) || | |
| 131 (src->is_constant() && LIR_Assembler::is_small_constant(op->as_Op1()->in_opr())))) { | |
| 132 return true; | |
| 133 } | |
| 134 | |
| 135 return false; | |
| 136 } | |
| 137 | |
| 138 default: | |
| 139 return false; | |
| 140 } | |
| 141 ShouldNotReachHere(); | |
| 142 } | |
| 143 | |
| 144 | |
| 145 LIR_Opr LIR_Assembler::receiverOpr() { | |
| 146 return FrameMap::O0_oop_opr; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 LIR_Opr LIR_Assembler::osrBufferPointer() { | |
| 151 return FrameMap::I0_opr; | |
| 152 } | |
| 153 | |
| 154 | |
| 155 int LIR_Assembler::initial_frame_size_in_bytes() { | |
| 156 return in_bytes(frame_map()->framesize_in_bytes()); | |
| 157 } | |
| 158 | |
| 159 | |
| 160 // inline cache check: the inline cached class is in G5_inline_cache_reg(G5); | |
| 161 // we fetch the class of the receiver (O0) and compare it with the cached class. | |
| 162 // If they do not match we jump to slow case. | |
| 163 int LIR_Assembler::check_icache() { | |
| 164 int offset = __ offset(); | |
| 165 __ inline_cache_check(O0, G5_inline_cache_reg); | |
| 166 return offset; | |
| 167 } | |
| 168 | |
| 169 | |
| 170 void LIR_Assembler::osr_entry() { | |
| 171 // On-stack-replacement entry sequence (interpreter frame layout described in interpreter_sparc.cpp): | |
| 172 // | |
| 173 // 1. Create a new compiled activation. | |
| 174 // 2. Initialize local variables in the compiled activation. The expression stack must be empty | |
| 175 // at the osr_bci; it is not initialized. | |
| 176 // 3. Jump to the continuation address in compiled code to resume execution. | |
| 177 | |
| 178 // OSR entry point | |
| 179 offsets()->set_value(CodeOffsets::OSR_Entry, code_offset()); | |
| 180 BlockBegin* osr_entry = compilation()->hir()->osr_entry(); | |
| 181 ValueStack* entry_state = osr_entry->end()->state(); | |
| 182 int number_of_locks = entry_state->locks_size(); | |
| 183 | |
| 184 // Create a frame for the compiled activation. | |
| 185 __ build_frame(initial_frame_size_in_bytes()); | |
| 186 | |
| 187 // OSR buffer is | |
| 188 // | |
| 189 // locals[nlocals-1..0] | |
| 190 // monitors[number_of_locks-1..0] | |
| 191 // | |
| 192 // locals is a direct copy of the interpreter frame so in the osr buffer | |
| 193 // so first slot in the local array is the last local from the interpreter | |
| 194 // and last slot is local[0] (receiver) from the interpreter | |
| 195 // | |
| 196 // Similarly with locks. The first lock slot in the osr buffer is the nth lock | |
| 197 // from the interpreter frame, the nth lock slot in the osr buffer is 0th lock | |
| 198 // in the interpreter frame (the method lock if a sync method) | |
| 199 | |
| 200 // Initialize monitors in the compiled activation. | |
| 201 // I0: pointer to osr buffer | |
| 202 // | |
| 203 // All other registers are dead at this point and the locals will be | |
| 204 // copied into place by code emitted in the IR. | |
| 205 | |
| 206 Register OSR_buf = osrBufferPointer()->as_register(); | |
| 207 { assert(frame::interpreter_frame_monitor_size() == BasicObjectLock::size(), "adjust code below"); | |
| 208 int monitor_offset = BytesPerWord * method()->max_locals() + | |
| 1060 | 209 (2 * BytesPerWord) * (number_of_locks - 1); |
| 210 // SharedRuntime::OSR_migration_begin() packs BasicObjectLocks in | |
| 211 // the OSR buffer using 2 word entries: first the lock and then | |
| 212 // the oop. | |
| 0 | 213 for (int i = 0; i < number_of_locks; i++) { |
| 1060 | 214 int slot_offset = monitor_offset - ((i * 2) * BytesPerWord); |
| 0 | 215 #ifdef ASSERT |
| 216 // verify the interpreter's monitor has a non-null object | |
| 217 { | |
| 218 Label L; | |
| 1060 | 219 __ ld_ptr(OSR_buf, slot_offset + 1*BytesPerWord, O7); |
| 3839 | 220 __ cmp_and_br_short(O7, G0, Assembler::notEqual, Assembler::pt, L); |
| 0 | 221 __ stop("locked object is NULL"); |
| 222 __ bind(L); | |
| 223 } | |
| 224 #endif // ASSERT | |
| 225 // Copy the lock field into the compiled activation. | |
| 1060 | 226 __ ld_ptr(OSR_buf, slot_offset + 0, O7); |
| 0 | 227 __ st_ptr(O7, frame_map()->address_for_monitor_lock(i)); |
| 1060 | 228 __ ld_ptr(OSR_buf, slot_offset + 1*BytesPerWord, O7); |
| 0 | 229 __ st_ptr(O7, frame_map()->address_for_monitor_object(i)); |
| 230 } | |
| 231 } | |
| 232 } | |
| 233 | |
| 234 | |
| 235 // Optimized Library calls | |
| 236 // This is the fast version of java.lang.String.compare; it has not | |
| 237 // OSR-entry and therefore, we generate a slow version for OSR's | |
| 238 void LIR_Assembler::emit_string_compare(LIR_Opr left, LIR_Opr right, LIR_Opr dst, CodeEmitInfo* info) { | |
| 239 Register str0 = left->as_register(); | |
| 240 Register str1 = right->as_register(); | |
| 241 | |
| 242 Label Ldone; | |
| 243 | |
| 244 Register result = dst->as_register(); | |
| 245 { | |
| 6057 | 246 // Get a pointer to the first character of string0 in tmp0 |
| 247 // and get string0.length() in str0 | |
| 248 // Get a pointer to the first character of string1 in tmp1 | |
| 249 // and get string1.length() in str1 | |
| 250 // Also, get string0.length()-string1.length() in | |
| 251 // o7 and get the condition code set | |
| 0 | 252 // Note: some instructions have been hoisted for better instruction scheduling |
| 253 | |
| 254 Register tmp0 = L0; | |
| 255 Register tmp1 = L1; | |
| 256 Register tmp2 = L2; | |
| 257 | |
| 258 int value_offset = java_lang_String:: value_offset_in_bytes(); // char array | |
| 6057 | 259 if (java_lang_String::has_offset_field()) { |
| 260 int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position | |
| 261 int count_offset = java_lang_String:: count_offset_in_bytes(); | |
| 262 __ load_heap_oop(str0, value_offset, tmp0); | |
| 263 __ ld(str0, offset_offset, tmp2); | |
| 264 __ add(tmp0, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0); | |
| 265 __ ld(str0, count_offset, str0); | |
| 266 __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2); | |
| 267 } else { | |
| 268 __ load_heap_oop(str0, value_offset, tmp1); | |
| 269 __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0); | |
| 270 __ ld(tmp1, arrayOopDesc::length_offset_in_bytes(), str0); | |
| 271 } | |
| 0 | 272 |
| 273 // str1 may be null | |
| 274 add_debug_info_for_null_check_here(info); | |
| 275 | |
| 6057 | 276 if (java_lang_String::has_offset_field()) { |
| 277 int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position | |
| 278 int count_offset = java_lang_String:: count_offset_in_bytes(); | |
| 279 __ load_heap_oop(str1, value_offset, tmp1); | |
| 280 __ add(tmp0, tmp2, tmp0); | |
| 281 | |
| 282 __ ld(str1, offset_offset, tmp2); | |
| 283 __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1); | |
| 284 __ ld(str1, count_offset, str1); | |
| 285 __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2); | |
| 286 __ add(tmp1, tmp2, tmp1); | |
| 287 } else { | |
| 288 __ load_heap_oop(str1, value_offset, tmp2); | |
| 289 __ add(tmp2, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1); | |
| 290 __ ld(tmp2, arrayOopDesc::length_offset_in_bytes(), str1); | |
| 291 } | |
| 0 | 292 __ subcc(str0, str1, O7); |
| 293 } | |
| 294 | |
| 295 { | |
| 296 // Compute the minimum of the string lengths, scale it and store it in limit | |
| 297 Register count0 = I0; | |
| 298 Register count1 = I1; | |
| 299 Register limit = L3; | |
| 300 | |
| 301 Label Lskip; | |
| 302 __ sll(count0, exact_log2(sizeof(jchar)), limit); // string0 is shorter | |
| 303 __ br(Assembler::greater, true, Assembler::pt, Lskip); | |
| 304 __ delayed()->sll(count1, exact_log2(sizeof(jchar)), limit); // string1 is shorter | |
| 305 __ bind(Lskip); | |
| 306 | |
| 307 // If either string is empty (or both of them) the result is the difference in lengths | |
| 308 __ cmp(limit, 0); | |
| 309 __ br(Assembler::equal, true, Assembler::pn, Ldone); | |
| 310 __ delayed()->mov(O7, result); // result is difference in lengths | |
| 311 } | |
| 312 | |
| 313 { | |
| 314 // Neither string is empty | |
| 315 Label Lloop; | |
| 316 | |
| 317 Register base0 = L0; | |
| 318 Register base1 = L1; | |
| 319 Register chr0 = I0; | |
| 320 Register chr1 = I1; | |
| 321 Register limit = L3; | |
| 322 | |
| 323 // Shift base0 and base1 to the end of the arrays, negate limit | |
| 324 __ add(base0, limit, base0); | |
| 325 __ add(base1, limit, base1); | |
| 6057 | 326 __ neg(limit); // limit = -min{string0.length(), string1.length()} |
| 0 | 327 |
| 328 __ lduh(base0, limit, chr0); | |
| 329 __ bind(Lloop); | |
| 330 __ lduh(base1, limit, chr1); | |
| 331 __ subcc(chr0, chr1, chr0); | |
| 332 __ br(Assembler::notZero, false, Assembler::pn, Ldone); | |
| 333 assert(chr0 == result, "result must be pre-placed"); | |
| 334 __ delayed()->inccc(limit, sizeof(jchar)); | |
| 335 __ br(Assembler::notZero, true, Assembler::pt, Lloop); | |
| 336 __ delayed()->lduh(base0, limit, chr0); | |
| 337 } | |
| 338 | |
| 339 // If strings are equal up to min length, return the length difference. | |
| 340 __ mov(O7, result); | |
| 341 | |
| 342 // Otherwise, return the difference between the first mismatched chars. | |
| 343 __ bind(Ldone); | |
| 344 } | |
| 345 | |
| 346 | |
| 347 // -------------------------------------------------------------------------------------------- | |
| 348 | |
| 349 void LIR_Assembler::monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no) { | |
| 350 if (!GenerateSynchronizationCode) return; | |
| 351 | |
| 352 Register obj_reg = obj_opr->as_register(); | |
| 353 Register lock_reg = lock_opr->as_register(); | |
| 354 | |
| 355 Address mon_addr = frame_map()->address_for_monitor_lock(monitor_no); | |
| 356 Register reg = mon_addr.base(); | |
| 357 int offset = mon_addr.disp(); | |
| 358 // compute pointer to BasicLock | |
| 359 if (mon_addr.is_simm13()) { | |
| 360 __ add(reg, offset, lock_reg); | |
| 361 } | |
| 362 else { | |
| 363 __ set(offset, lock_reg); | |
| 364 __ add(reg, lock_reg, lock_reg); | |
| 365 } | |
| 366 // unlock object | |
| 367 MonitorAccessStub* slow_case = new MonitorExitStub(lock_opr, UseFastLocking, monitor_no); | |
| 368 // _slow_case_stubs->append(slow_case); | |
| 369 // temporary fix: must be created after exceptionhandler, therefore as call stub | |
| 370 _slow_case_stubs->append(slow_case); | |
| 371 if (UseFastLocking) { | |
| 372 // try inlined fast unlocking first, revert to slow locking if it fails | |
| 373 // note: lock_reg points to the displaced header since the displaced header offset is 0! | |
| 374 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 375 __ unlock_object(hdr, obj_reg, lock_reg, *slow_case->entry()); | |
| 376 } else { | |
| 377 // always do slow unlocking | |
| 378 // note: the slow unlocking code could be inlined here, however if we use | |
| 379 // slow unlocking, speed doesn't matter anyway and this solution is | |
| 380 // simpler and requires less duplicated code - additionally, the | |
| 381 // slow unlocking code is the same in either case which simplifies | |
| 382 // debugging | |
| 383 __ br(Assembler::always, false, Assembler::pt, *slow_case->entry()); | |
| 384 __ delayed()->nop(); | |
| 385 } | |
| 386 // done | |
| 387 __ bind(*slow_case->continuation()); | |
| 388 } | |
| 389 | |
| 390 | |
| 1204 | 391 int LIR_Assembler::emit_exception_handler() { |
| 0 | 392 // if the last instruction is a call (typically to do a throw which |
| 393 // is coming at the end after block reordering) the return address | |
| 394 // must still point into the code area in order to avoid assertion | |
| 395 // failures when searching for the corresponding bci => add a nop | |
| 396 // (was bug 5/14/1999 - gri) | |
| 397 __ nop(); | |
| 398 | |
| 399 // generate code for exception handler | |
| 400 ciMethod* method = compilation()->method(); | |
| 401 | |
| 402 address handler_base = __ start_a_stub(exception_handler_size); | |
| 403 | |
| 404 if (handler_base == NULL) { | |
| 405 // not enough space left for the handler | |
| 406 bailout("exception handler overflow"); | |
| 1204 | 407 return -1; |
| 0 | 408 } |
| 1204 | 409 |
| 0 | 410 int offset = code_offset(); |
| 411 | |
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412 __ call(Runtime1::entry_for(Runtime1::handle_exception_from_callee_id), relocInfo::runtime_call_type); |
| 0 | 413 __ delayed()->nop(); |
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414 __ should_not_reach_here(); |
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415 guarantee(code_offset() - offset <= exception_handler_size, "overflow"); |
| 0 | 416 __ end_a_stub(); |
| 1204 | 417 |
| 418 return offset; | |
| 0 | 419 } |
| 420 | |
| 1204 | 421 |
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422 // Emit the code to remove the frame from the stack in the exception |
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423 // unwind path. |
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424 int LIR_Assembler::emit_unwind_handler() { |
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425 #ifndef PRODUCT |
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426 if (CommentedAssembly) { |
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427 _masm->block_comment("Unwind handler"); |
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428 } |
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429 #endif |
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430 |
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431 int offset = code_offset(); |
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432 |
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433 // Fetch the exception from TLS and clear out exception related thread state |
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434 __ ld_ptr(G2_thread, in_bytes(JavaThread::exception_oop_offset()), O0); |
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435 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_oop_offset())); |
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436 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_pc_offset())); |
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437 |
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438 __ bind(_unwind_handler_entry); |
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439 __ verify_not_null_oop(O0); |
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440 if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) { |
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441 __ mov(O0, I0); // Preserve the exception |
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442 } |
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443 |
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444 // Preform needed unlocking |
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445 MonitorExitStub* stub = NULL; |
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446 if (method()->is_synchronized()) { |
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447 monitor_address(0, FrameMap::I1_opr); |
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448 stub = new MonitorExitStub(FrameMap::I1_opr, true, 0); |
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449 __ unlock_object(I3, I2, I1, *stub->entry()); |
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450 __ bind(*stub->continuation()); |
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451 } |
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452 |
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453 if (compilation()->env()->dtrace_method_probes()) { |
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454 __ mov(G2_thread, O0); |
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455 __ save_thread(I1); // need to preserve thread in G2 across |
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456 // runtime call |
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457 metadata2reg(method()->constant_encoding(), O1); |
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458 __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), relocInfo::runtime_call_type); |
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459 __ delayed()->nop(); |
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460 __ restore_thread(I1); |
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461 } |
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462 |
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463 if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) { |
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464 __ mov(I0, O0); // Restore the exception |
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465 } |
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466 |
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467 // dispatch to the unwind logic |
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468 __ call(Runtime1::entry_for(Runtime1::unwind_exception_id), relocInfo::runtime_call_type); |
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469 __ delayed()->nop(); |
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470 |
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471 // Emit the slow path assembly |
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472 if (stub != NULL) { |
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473 stub->emit_code(this); |
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474 } |
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475 |
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476 return offset; |
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477 } |
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478 |
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479 |
| 1204 | 480 int LIR_Assembler::emit_deopt_handler() { |
| 0 | 481 // if the last instruction is a call (typically to do a throw which |
| 482 // is coming at the end after block reordering) the return address | |
| 483 // must still point into the code area in order to avoid assertion | |
| 484 // failures when searching for the corresponding bci => add a nop | |
| 485 // (was bug 5/14/1999 - gri) | |
| 486 __ nop(); | |
| 487 | |
| 488 // generate code for deopt handler | |
| 489 ciMethod* method = compilation()->method(); | |
| 490 address handler_base = __ start_a_stub(deopt_handler_size); | |
| 491 if (handler_base == NULL) { | |
| 492 // not enough space left for the handler | |
| 493 bailout("deopt handler overflow"); | |
| 1204 | 494 return -1; |
| 0 | 495 } |
| 1204 | 496 |
| 0 | 497 int offset = code_offset(); |
| 727 | 498 AddressLiteral deopt_blob(SharedRuntime::deopt_blob()->unpack()); |
| 499 __ JUMP(deopt_blob, G3_scratch, 0); // sethi;jmp | |
| 0 | 500 __ delayed()->nop(); |
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501 guarantee(code_offset() - offset <= deopt_handler_size, "overflow"); |
| 0 | 502 __ end_a_stub(); |
| 1204 | 503 |
| 504 return offset; | |
| 0 | 505 } |
| 506 | |
| 507 | |
| 508 void LIR_Assembler::jobject2reg(jobject o, Register reg) { | |
| 509 if (o == NULL) { | |
| 510 __ set(NULL_WORD, reg); | |
| 511 } else { | |
| 512 int oop_index = __ oop_recorder()->find_index(o); | |
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513 assert(Universe::heap()->is_in_reserved(JNIHandles::resolve(o)), "should be real oop"); |
| 0 | 514 RelocationHolder rspec = oop_Relocation::spec(oop_index); |
| 515 __ set(NULL_WORD, reg, rspec); // Will be set when the nmethod is created | |
| 516 } | |
| 517 } | |
| 518 | |
| 519 | |
| 520 void LIR_Assembler::jobject2reg_with_patching(Register reg, CodeEmitInfo *info) { | |
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521 // Allocate a new index in table to hold the object once it's been patched |
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522 int oop_index = __ oop_recorder()->allocate_oop_index(NULL); |
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523 PatchingStub* patch = new PatchingStub(_masm, PatchingStub::load_mirror_id, oop_index); |
| 0 | 524 |
| 727 | 525 AddressLiteral addrlit(NULL, oop_Relocation::spec(oop_index)); |
| 526 assert(addrlit.rspec().type() == relocInfo::oop_type, "must be an oop reloc"); | |
| 0 | 527 // It may not seem necessary to use a sethi/add pair to load a NULL into dest, but the |
| 528 // NULL will be dynamically patched later and the patched value may be large. We must | |
| 529 // therefore generate the sethi/add as a placeholders | |
| 727 | 530 __ patchable_set(addrlit, reg); |
| 0 | 531 |
| 532 patching_epilog(patch, lir_patch_normal, reg, info); | |
| 533 } | |
| 534 | |
| 535 | |
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536 void LIR_Assembler::metadata2reg(Metadata* o, Register reg) { |
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537 __ set_metadata_constant(o, reg); |
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538 } |
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539 |
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540 void LIR_Assembler::klass2reg_with_patching(Register reg, CodeEmitInfo *info) { |
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541 // Allocate a new index in table to hold the klass once it's been patched |
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542 int index = __ oop_recorder()->allocate_metadata_index(NULL); |
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543 PatchingStub* patch = new PatchingStub(_masm, PatchingStub::load_klass_id, index); |
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544 AddressLiteral addrlit(NULL, metadata_Relocation::spec(index)); |
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545 assert(addrlit.rspec().type() == relocInfo::metadata_type, "must be an metadata reloc"); |
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546 // It may not seem necessary to use a sethi/add pair to load a NULL into dest, but the |
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547 // NULL will be dynamically patched later and the patched value may be large. We must |
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548 // therefore generate the sethi/add as a placeholders |
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549 __ patchable_set(addrlit, reg); |
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550 |
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551 patching_epilog(patch, lir_patch_normal, reg, info); |
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552 } |
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553 |
| 0 | 554 void LIR_Assembler::emit_op3(LIR_Op3* op) { |
| 555 Register Rdividend = op->in_opr1()->as_register(); | |
| 556 Register Rdivisor = noreg; | |
| 557 Register Rscratch = op->in_opr3()->as_register(); | |
| 558 Register Rresult = op->result_opr()->as_register(); | |
| 559 int divisor = -1; | |
| 560 | |
| 561 if (op->in_opr2()->is_register()) { | |
| 562 Rdivisor = op->in_opr2()->as_register(); | |
| 563 } else { | |
| 564 divisor = op->in_opr2()->as_constant_ptr()->as_jint(); | |
| 565 assert(Assembler::is_simm13(divisor), "can only handle simm13"); | |
| 566 } | |
| 567 | |
| 568 assert(Rdividend != Rscratch, ""); | |
| 569 assert(Rdivisor != Rscratch, ""); | |
| 570 assert(op->code() == lir_idiv || op->code() == lir_irem, "Must be irem or idiv"); | |
| 571 | |
| 572 if (Rdivisor == noreg && is_power_of_2(divisor)) { | |
| 573 // convert division by a power of two into some shifts and logical operations | |
| 574 if (op->code() == lir_idiv) { | |
| 575 if (divisor == 2) { | |
| 576 __ srl(Rdividend, 31, Rscratch); | |
| 577 } else { | |
| 578 __ sra(Rdividend, 31, Rscratch); | |
| 579 __ and3(Rscratch, divisor - 1, Rscratch); | |
| 580 } | |
| 581 __ add(Rdividend, Rscratch, Rscratch); | |
| 582 __ sra(Rscratch, log2_intptr(divisor), Rresult); | |
| 583 return; | |
| 584 } else { | |
| 585 if (divisor == 2) { | |
| 586 __ srl(Rdividend, 31, Rscratch); | |
| 587 } else { | |
| 588 __ sra(Rdividend, 31, Rscratch); | |
| 589 __ and3(Rscratch, divisor - 1,Rscratch); | |
| 590 } | |
| 591 __ add(Rdividend, Rscratch, Rscratch); | |
| 592 __ andn(Rscratch, divisor - 1,Rscratch); | |
| 593 __ sub(Rdividend, Rscratch, Rresult); | |
| 594 return; | |
| 595 } | |
| 596 } | |
| 597 | |
| 598 __ sra(Rdividend, 31, Rscratch); | |
| 599 __ wry(Rscratch); | |
| 600 if (!VM_Version::v9_instructions_work()) { | |
| 601 // v9 doesn't require these nops | |
| 602 __ nop(); | |
| 603 __ nop(); | |
| 604 __ nop(); | |
| 605 __ nop(); | |
| 606 } | |
| 607 | |
| 608 add_debug_info_for_div0_here(op->info()); | |
| 609 | |
| 610 if (Rdivisor != noreg) { | |
| 611 __ sdivcc(Rdividend, Rdivisor, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 612 } else { | |
| 613 assert(Assembler::is_simm13(divisor), "can only handle simm13"); | |
| 614 __ sdivcc(Rdividend, divisor, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 615 } | |
| 616 | |
| 617 Label skip; | |
| 618 __ br(Assembler::overflowSet, true, Assembler::pn, skip); | |
| 619 __ delayed()->Assembler::sethi(0x80000000, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 620 __ bind(skip); | |
| 621 | |
| 622 if (op->code() == lir_irem) { | |
| 623 if (Rdivisor != noreg) { | |
| 624 __ smul(Rscratch, Rdivisor, Rscratch); | |
| 625 } else { | |
| 626 __ smul(Rscratch, divisor, Rscratch); | |
| 627 } | |
| 628 __ sub(Rdividend, Rscratch, Rresult); | |
| 629 } | |
| 630 } | |
| 631 | |
| 632 | |
| 633 void LIR_Assembler::emit_opBranch(LIR_OpBranch* op) { | |
| 634 #ifdef ASSERT | |
| 635 assert(op->block() == NULL || op->block()->label() == op->label(), "wrong label"); | |
| 636 if (op->block() != NULL) _branch_target_blocks.append(op->block()); | |
| 637 if (op->ublock() != NULL) _branch_target_blocks.append(op->ublock()); | |
| 638 #endif | |
| 639 assert(op->info() == NULL, "shouldn't have CodeEmitInfo"); | |
| 640 | |
| 641 if (op->cond() == lir_cond_always) { | |
| 642 __ br(Assembler::always, false, Assembler::pt, *(op->label())); | |
| 643 } else if (op->code() == lir_cond_float_branch) { | |
| 644 assert(op->ublock() != NULL, "must have unordered successor"); | |
| 645 bool is_unordered = (op->ublock() == op->block()); | |
| 646 Assembler::Condition acond; | |
| 647 switch (op->cond()) { | |
| 648 case lir_cond_equal: acond = Assembler::f_equal; break; | |
| 649 case lir_cond_notEqual: acond = Assembler::f_notEqual; break; | |
| 650 case lir_cond_less: acond = (is_unordered ? Assembler::f_unorderedOrLess : Assembler::f_less); break; | |
| 651 case lir_cond_greater: acond = (is_unordered ? Assembler::f_unorderedOrGreater : Assembler::f_greater); break; | |
| 652 case lir_cond_lessEqual: acond = (is_unordered ? Assembler::f_unorderedOrLessOrEqual : Assembler::f_lessOrEqual); break; | |
| 653 case lir_cond_greaterEqual: acond = (is_unordered ? Assembler::f_unorderedOrGreaterOrEqual: Assembler::f_greaterOrEqual); break; | |
| 654 default : ShouldNotReachHere(); | |
| 655 }; | |
| 656 | |
| 657 if (!VM_Version::v9_instructions_work()) { | |
| 658 __ nop(); | |
| 659 } | |
| 660 __ fb( acond, false, Assembler::pn, *(op->label())); | |
| 661 } else { | |
| 662 assert (op->code() == lir_branch, "just checking"); | |
| 663 | |
| 664 Assembler::Condition acond; | |
| 665 switch (op->cond()) { | |
| 666 case lir_cond_equal: acond = Assembler::equal; break; | |
| 667 case lir_cond_notEqual: acond = Assembler::notEqual; break; | |
| 668 case lir_cond_less: acond = Assembler::less; break; | |
| 669 case lir_cond_lessEqual: acond = Assembler::lessEqual; break; | |
| 670 case lir_cond_greaterEqual: acond = Assembler::greaterEqual; break; | |
| 671 case lir_cond_greater: acond = Assembler::greater; break; | |
| 672 case lir_cond_aboveEqual: acond = Assembler::greaterEqualUnsigned; break; | |
| 673 case lir_cond_belowEqual: acond = Assembler::lessEqualUnsigned; break; | |
| 674 default: ShouldNotReachHere(); | |
| 675 }; | |
| 676 | |
| 677 // sparc has different condition codes for testing 32-bit | |
| 678 // vs. 64-bit values. We could always test xcc is we could | |
| 679 // guarantee that 32-bit loads always sign extended but that isn't | |
| 680 // true and since sign extension isn't free, it would impose a | |
| 681 // slight cost. | |
| 682 #ifdef _LP64 | |
| 683 if (op->type() == T_INT) { | |
| 684 __ br(acond, false, Assembler::pn, *(op->label())); | |
| 685 } else | |
| 686 #endif | |
| 687 __ brx(acond, false, Assembler::pn, *(op->label())); | |
| 688 } | |
| 689 // The peephole pass fills the delay slot | |
| 690 } | |
| 691 | |
| 692 | |
| 693 void LIR_Assembler::emit_opConvert(LIR_OpConvert* op) { | |
| 694 Bytecodes::Code code = op->bytecode(); | |
| 695 LIR_Opr dst = op->result_opr(); | |
| 696 | |
| 697 switch(code) { | |
| 698 case Bytecodes::_i2l: { | |
| 699 Register rlo = dst->as_register_lo(); | |
| 700 Register rhi = dst->as_register_hi(); | |
| 701 Register rval = op->in_opr()->as_register(); | |
| 702 #ifdef _LP64 | |
| 703 __ sra(rval, 0, rlo); | |
| 704 #else | |
| 705 __ mov(rval, rlo); | |
| 706 __ sra(rval, BitsPerInt-1, rhi); | |
| 707 #endif | |
| 708 break; | |
| 709 } | |
| 710 case Bytecodes::_i2d: | |
| 711 case Bytecodes::_i2f: { | |
| 712 bool is_double = (code == Bytecodes::_i2d); | |
| 713 FloatRegister rdst = is_double ? dst->as_double_reg() : dst->as_float_reg(); | |
| 714 FloatRegisterImpl::Width w = is_double ? FloatRegisterImpl::D : FloatRegisterImpl::S; | |
| 715 FloatRegister rsrc = op->in_opr()->as_float_reg(); | |
| 716 if (rsrc != rdst) { | |
| 717 __ fmov(FloatRegisterImpl::S, rsrc, rdst); | |
| 718 } | |
| 719 __ fitof(w, rdst, rdst); | |
| 720 break; | |
| 721 } | |
| 722 case Bytecodes::_f2i:{ | |
| 723 FloatRegister rsrc = op->in_opr()->as_float_reg(); | |
| 724 Address addr = frame_map()->address_for_slot(dst->single_stack_ix()); | |
| 725 Label L; | |
| 726 // result must be 0 if value is NaN; test by comparing value to itself | |
| 727 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, rsrc, rsrc); | |
| 728 if (!VM_Version::v9_instructions_work()) { | |
| 729 __ nop(); | |
| 730 } | |
| 731 __ fb(Assembler::f_unordered, true, Assembler::pn, L); | |
| 732 __ delayed()->st(G0, addr); // annuled if contents of rsrc is not NaN | |
| 733 __ ftoi(FloatRegisterImpl::S, rsrc, rsrc); | |
| 734 // move integer result from float register to int register | |
| 735 __ stf(FloatRegisterImpl::S, rsrc, addr.base(), addr.disp()); | |
| 736 __ bind (L); | |
| 737 break; | |
| 738 } | |
| 739 case Bytecodes::_l2i: { | |
| 740 Register rlo = op->in_opr()->as_register_lo(); | |
| 741 Register rhi = op->in_opr()->as_register_hi(); | |
| 742 Register rdst = dst->as_register(); | |
| 743 #ifdef _LP64 | |
| 744 __ sra(rlo, 0, rdst); | |
| 745 #else | |
| 746 __ mov(rlo, rdst); | |
| 747 #endif | |
| 748 break; | |
| 749 } | |
| 750 case Bytecodes::_d2f: | |
| 751 case Bytecodes::_f2d: { | |
| 752 bool is_double = (code == Bytecodes::_f2d); | |
| 753 assert((!is_double && dst->is_single_fpu()) || (is_double && dst->is_double_fpu()), "check"); | |
| 754 LIR_Opr val = op->in_opr(); | |
| 755 FloatRegister rval = (code == Bytecodes::_d2f) ? val->as_double_reg() : val->as_float_reg(); | |
| 756 FloatRegister rdst = is_double ? dst->as_double_reg() : dst->as_float_reg(); | |
| 757 FloatRegisterImpl::Width vw = is_double ? FloatRegisterImpl::S : FloatRegisterImpl::D; | |
| 758 FloatRegisterImpl::Width dw = is_double ? FloatRegisterImpl::D : FloatRegisterImpl::S; | |
| 759 __ ftof(vw, dw, rval, rdst); | |
| 760 break; | |
| 761 } | |
| 762 case Bytecodes::_i2s: | |
| 763 case Bytecodes::_i2b: { | |
| 764 Register rval = op->in_opr()->as_register(); | |
| 765 Register rdst = dst->as_register(); | |
| 766 int shift = (code == Bytecodes::_i2b) ? (BitsPerInt - T_BYTE_aelem_bytes * BitsPerByte) : (BitsPerInt - BitsPerShort); | |
| 767 __ sll (rval, shift, rdst); | |
| 768 __ sra (rdst, shift, rdst); | |
| 769 break; | |
| 770 } | |
| 771 case Bytecodes::_i2c: { | |
| 772 Register rval = op->in_opr()->as_register(); | |
| 773 Register rdst = dst->as_register(); | |
| 774 int shift = BitsPerInt - T_CHAR_aelem_bytes * BitsPerByte; | |
| 775 __ sll (rval, shift, rdst); | |
| 776 __ srl (rdst, shift, rdst); | |
| 777 break; | |
| 778 } | |
| 779 | |
| 780 default: ShouldNotReachHere(); | |
| 781 } | |
| 782 } | |
| 783 | |
| 784 | |
| 785 void LIR_Assembler::align_call(LIR_Code) { | |
| 786 // do nothing since all instructions are word aligned on sparc | |
| 787 } | |
| 788 | |
| 789 | |
| 1295 | 790 void LIR_Assembler::call(LIR_OpJavaCall* op, relocInfo::relocType rtype) { |
| 791 __ call(op->addr(), rtype); | |
| 1564 | 792 // The peephole pass fills the delay slot, add_call_info is done in |
| 793 // LIR_Assembler::emit_delay. | |
| 0 | 794 } |
| 795 | |
| 796 | |
| 1295 | 797 void LIR_Assembler::ic_call(LIR_OpJavaCall* op) { |
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798 __ ic_call(op->addr(), false); |
| 1564 | 799 // The peephole pass fills the delay slot, add_call_info is done in |
| 800 // LIR_Assembler::emit_delay. | |
| 0 | 801 } |
| 802 | |
| 803 | |
| 1295 | 804 void LIR_Assembler::vtable_call(LIR_OpJavaCall* op) { |
| 805 add_debug_info_for_null_check_here(op->info()); | |
| 2002 | 806 __ load_klass(O0, G3_scratch); |
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807 if (Assembler::is_simm13(op->vtable_offset())) { |
| 1295 | 808 __ ld_ptr(G3_scratch, op->vtable_offset(), G5_method); |
| 0 | 809 } else { |
| 810 // This will generate 2 instructions | |
| 1295 | 811 __ set(op->vtable_offset(), G5_method); |
| 0 | 812 // ld_ptr, set_hi, set |
| 813 __ ld_ptr(G3_scratch, G5_method, G5_method); | |
| 814 } | |
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815 __ ld_ptr(G5_method, Method::from_compiled_offset(), G3_scratch); |
| 0 | 816 __ callr(G3_scratch, G0); |
| 817 // the peephole pass fills the delay slot | |
| 818 } | |
| 819 | |
| 2002 | 820 int LIR_Assembler::store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide, bool unaligned) { |
| 0 | 821 int store_offset; |
| 822 if (!Assembler::is_simm13(offset + (type == T_LONG) ? wordSize : 0)) { | |
| 823 assert(!unaligned, "can't handle this"); | |
| 824 // for offsets larger than a simm13 we setup the offset in O7 | |
| 727 | 825 __ set(offset, O7); |
| 2002 | 826 store_offset = store(from_reg, base, O7, type, wide); |
| 0 | 827 } else { |
| 2002 | 828 if (type == T_ARRAY || type == T_OBJECT) { |
| 829 __ verify_oop(from_reg->as_register()); | |
| 830 } | |
| 0 | 831 store_offset = code_offset(); |
| 832 switch (type) { | |
| 833 case T_BOOLEAN: // fall through | |
| 834 case T_BYTE : __ stb(from_reg->as_register(), base, offset); break; | |
| 835 case T_CHAR : __ sth(from_reg->as_register(), base, offset); break; | |
| 836 case T_SHORT : __ sth(from_reg->as_register(), base, offset); break; | |
| 837 case T_INT : __ stw(from_reg->as_register(), base, offset); break; | |
| 838 case T_LONG : | |
| 839 #ifdef _LP64 | |
| 840 if (unaligned || PatchALot) { | |
| 841 __ srax(from_reg->as_register_lo(), 32, O7); | |
| 842 __ stw(from_reg->as_register_lo(), base, offset + lo_word_offset_in_bytes); | |
| 843 __ stw(O7, base, offset + hi_word_offset_in_bytes); | |
| 844 } else { | |
| 845 __ stx(from_reg->as_register_lo(), base, offset); | |
| 846 } | |
| 847 #else | |
| 848 assert(Assembler::is_simm13(offset + 4), "must be"); | |
| 849 __ stw(from_reg->as_register_lo(), base, offset + lo_word_offset_in_bytes); | |
| 850 __ stw(from_reg->as_register_hi(), base, offset + hi_word_offset_in_bytes); | |
| 851 #endif | |
| 852 break; | |
| 2002 | 853 case T_ADDRESS: |
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854 case T_METADATA: |
| 2002 | 855 __ st_ptr(from_reg->as_register(), base, offset); |
| 856 break; | |
| 0 | 857 case T_ARRAY : // fall through |
| 2002 | 858 case T_OBJECT: |
| 859 { | |
| 860 if (UseCompressedOops && !wide) { | |
| 861 __ encode_heap_oop(from_reg->as_register(), G3_scratch); | |
| 862 store_offset = code_offset(); | |
| 863 __ stw(G3_scratch, base, offset); | |
| 864 } else { | |
| 865 __ st_ptr(from_reg->as_register(), base, offset); | |
| 866 } | |
| 867 break; | |
| 868 } | |
| 869 | |
| 0 | 870 case T_FLOAT : __ stf(FloatRegisterImpl::S, from_reg->as_float_reg(), base, offset); break; |
| 871 case T_DOUBLE: | |
| 872 { | |
| 873 FloatRegister reg = from_reg->as_double_reg(); | |
| 874 // split unaligned stores | |
| 875 if (unaligned || PatchALot) { | |
| 876 assert(Assembler::is_simm13(offset + 4), "must be"); | |
| 877 __ stf(FloatRegisterImpl::S, reg->successor(), base, offset + 4); | |
| 878 __ stf(FloatRegisterImpl::S, reg, base, offset); | |
| 879 } else { | |
| 880 __ stf(FloatRegisterImpl::D, reg, base, offset); | |
| 881 } | |
| 882 break; | |
| 883 } | |
| 884 default : ShouldNotReachHere(); | |
| 885 } | |
| 886 } | |
| 887 return store_offset; | |
| 888 } | |
| 889 | |
| 890 | |
| 2002 | 891 int LIR_Assembler::store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide) { |
| 892 if (type == T_ARRAY || type == T_OBJECT) { | |
| 893 __ verify_oop(from_reg->as_register()); | |
| 894 } | |
| 0 | 895 int store_offset = code_offset(); |
| 896 switch (type) { | |
| 897 case T_BOOLEAN: // fall through | |
| 898 case T_BYTE : __ stb(from_reg->as_register(), base, disp); break; | |
| 899 case T_CHAR : __ sth(from_reg->as_register(), base, disp); break; | |
| 900 case T_SHORT : __ sth(from_reg->as_register(), base, disp); break; | |
| 901 case T_INT : __ stw(from_reg->as_register(), base, disp); break; | |
| 902 case T_LONG : | |
| 903 #ifdef _LP64 | |
| 904 __ stx(from_reg->as_register_lo(), base, disp); | |
| 905 #else | |
| 906 assert(from_reg->as_register_hi()->successor() == from_reg->as_register_lo(), "must match"); | |
| 907 __ std(from_reg->as_register_hi(), base, disp); | |
| 908 #endif | |
| 909 break; | |
| 2002 | 910 case T_ADDRESS: |
| 911 __ st_ptr(from_reg->as_register(), base, disp); | |
| 912 break; | |
| 0 | 913 case T_ARRAY : // fall through |
| 2002 | 914 case T_OBJECT: |
| 915 { | |
| 916 if (UseCompressedOops && !wide) { | |
| 917 __ encode_heap_oop(from_reg->as_register(), G3_scratch); | |
| 918 store_offset = code_offset(); | |
| 919 __ stw(G3_scratch, base, disp); | |
| 920 } else { | |
| 921 __ st_ptr(from_reg->as_register(), base, disp); | |
| 922 } | |
| 923 break; | |
| 924 } | |
| 0 | 925 case T_FLOAT : __ stf(FloatRegisterImpl::S, from_reg->as_float_reg(), base, disp); break; |
| 926 case T_DOUBLE: __ stf(FloatRegisterImpl::D, from_reg->as_double_reg(), base, disp); break; | |
| 927 default : ShouldNotReachHere(); | |
| 928 } | |
| 929 return store_offset; | |
| 930 } | |
| 931 | |
| 932 | |
| 2002 | 933 int LIR_Assembler::load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide, bool unaligned) { |
| 0 | 934 int load_offset; |
| 935 if (!Assembler::is_simm13(offset + (type == T_LONG) ? wordSize : 0)) { | |
| 936 assert(base != O7, "destroying register"); | |
| 937 assert(!unaligned, "can't handle this"); | |
| 938 // for offsets larger than a simm13 we setup the offset in O7 | |
| 727 | 939 __ set(offset, O7); |
| 2002 | 940 load_offset = load(base, O7, to_reg, type, wide); |
| 0 | 941 } else { |
| 942 load_offset = code_offset(); | |
| 943 switch(type) { | |
| 944 case T_BOOLEAN: // fall through | |
| 945 case T_BYTE : __ ldsb(base, offset, to_reg->as_register()); break; | |
| 946 case T_CHAR : __ lduh(base, offset, to_reg->as_register()); break; | |
| 947 case T_SHORT : __ ldsh(base, offset, to_reg->as_register()); break; | |
| 948 case T_INT : __ ld(base, offset, to_reg->as_register()); break; | |
| 949 case T_LONG : | |
| 950 if (!unaligned) { | |
| 951 #ifdef _LP64 | |
| 952 __ ldx(base, offset, to_reg->as_register_lo()); | |
| 953 #else | |
| 954 assert(to_reg->as_register_hi()->successor() == to_reg->as_register_lo(), | |
| 955 "must be sequential"); | |
| 956 __ ldd(base, offset, to_reg->as_register_hi()); | |
| 957 #endif | |
| 958 } else { | |
| 959 #ifdef _LP64 | |
| 960 assert(base != to_reg->as_register_lo(), "can't handle this"); | |
| 1060 | 961 assert(O7 != to_reg->as_register_lo(), "can't handle this"); |
| 0 | 962 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_lo()); |
| 1060 | 963 __ lduw(base, offset + lo_word_offset_in_bytes, O7); // in case O7 is base or offset, use it last |
| 0 | 964 __ sllx(to_reg->as_register_lo(), 32, to_reg->as_register_lo()); |
| 1060 | 965 __ or3(to_reg->as_register_lo(), O7, to_reg->as_register_lo()); |
| 0 | 966 #else |
| 967 if (base == to_reg->as_register_lo()) { | |
| 968 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_hi()); | |
| 969 __ ld(base, offset + lo_word_offset_in_bytes, to_reg->as_register_lo()); | |
| 970 } else { | |
| 971 __ ld(base, offset + lo_word_offset_in_bytes, to_reg->as_register_lo()); | |
| 972 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_hi()); | |
| 973 } | |
| 974 #endif | |
| 975 } | |
| 976 break; | |
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977 case T_METADATA: __ ld_ptr(base, offset, to_reg->as_register()); break; |
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978 case T_ADDRESS: |
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979 #ifdef _LP64 |
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980 if (offset == oopDesc::klass_offset_in_bytes() && UseCompressedKlassPointers) { |
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981 __ lduw(base, offset, to_reg->as_register()); |
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982 __ decode_klass_not_null(to_reg->as_register()); |
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983 } else |
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984 #endif |
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985 { |
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986 __ ld_ptr(base, offset, to_reg->as_register()); |
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987 } |
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988 break; |
| 0 | 989 case T_ARRAY : // fall through |
| 2002 | 990 case T_OBJECT: |
| 991 { | |
| 992 if (UseCompressedOops && !wide) { | |
| 993 __ lduw(base, offset, to_reg->as_register()); | |
| 994 __ decode_heap_oop(to_reg->as_register()); | |
| 995 } else { | |
| 996 __ ld_ptr(base, offset, to_reg->as_register()); | |
| 997 } | |
| 998 break; | |
| 999 } | |
| 0 | 1000 case T_FLOAT: __ ldf(FloatRegisterImpl::S, base, offset, to_reg->as_float_reg()); break; |
| 1001 case T_DOUBLE: | |
| 1002 { | |
| 1003 FloatRegister reg = to_reg->as_double_reg(); | |
| 1004 // split unaligned loads | |
| 1005 if (unaligned || PatchALot) { | |
| 1060 | 1006 __ ldf(FloatRegisterImpl::S, base, offset + 4, reg->successor()); |
| 1007 __ ldf(FloatRegisterImpl::S, base, offset, reg); | |
| 0 | 1008 } else { |
| 1009 __ ldf(FloatRegisterImpl::D, base, offset, to_reg->as_double_reg()); | |
| 1010 } | |
| 1011 break; | |
| 1012 } | |
| 1013 default : ShouldNotReachHere(); | |
| 1014 } | |
| 2002 | 1015 if (type == T_ARRAY || type == T_OBJECT) { |
| 1016 __ verify_oop(to_reg->as_register()); | |
| 1017 } | |
| 0 | 1018 } |
| 1019 return load_offset; | |
| 1020 } | |
| 1021 | |
| 1022 | |
| 2002 | 1023 int LIR_Assembler::load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide) { |
| 0 | 1024 int load_offset = code_offset(); |
| 1025 switch(type) { | |
| 1026 case T_BOOLEAN: // fall through | |
| 2002 | 1027 case T_BYTE : __ ldsb(base, disp, to_reg->as_register()); break; |
| 1028 case T_CHAR : __ lduh(base, disp, to_reg->as_register()); break; | |
| 1029 case T_SHORT : __ ldsh(base, disp, to_reg->as_register()); break; | |
| 1030 case T_INT : __ ld(base, disp, to_reg->as_register()); break; | |
| 1031 case T_ADDRESS: __ ld_ptr(base, disp, to_reg->as_register()); break; | |
| 0 | 1032 case T_ARRAY : // fall through |
| 2002 | 1033 case T_OBJECT: |
| 1034 { | |
| 1035 if (UseCompressedOops && !wide) { | |
| 1036 __ lduw(base, disp, to_reg->as_register()); | |
| 1037 __ decode_heap_oop(to_reg->as_register()); | |
| 1038 } else { | |
| 1039 __ ld_ptr(base, disp, to_reg->as_register()); | |
| 1040 } | |
| 1041 break; | |
| 1042 } | |
| 0 | 1043 case T_FLOAT: __ ldf(FloatRegisterImpl::S, base, disp, to_reg->as_float_reg()); break; |
| 1044 case T_DOUBLE: __ ldf(FloatRegisterImpl::D, base, disp, to_reg->as_double_reg()); break; | |
| 1045 case T_LONG : | |
| 1046 #ifdef _LP64 | |
| 1047 __ ldx(base, disp, to_reg->as_register_lo()); | |
| 1048 #else | |
| 1049 assert(to_reg->as_register_hi()->successor() == to_reg->as_register_lo(), | |
| 1050 "must be sequential"); | |
| 1051 __ ldd(base, disp, to_reg->as_register_hi()); | |
| 1052 #endif | |
| 1053 break; | |
| 1054 default : ShouldNotReachHere(); | |
| 1055 } | |
| 2002 | 1056 if (type == T_ARRAY || type == T_OBJECT) { |
| 1057 __ verify_oop(to_reg->as_register()); | |
| 1058 } | |
| 0 | 1059 return load_offset; |
| 1060 } | |
| 1061 | |
| 1062 void LIR_Assembler::const2stack(LIR_Opr src, LIR_Opr dest) { | |
| 1063 LIR_Const* c = src->as_constant_ptr(); | |
| 1064 switch (c->type()) { | |
| 1065 case T_INT: | |
| 2002 | 1066 case T_FLOAT: { |
| 1067 Register src_reg = O7; | |
| 1068 int value = c->as_jint_bits(); | |
| 1069 if (value == 0) { | |
| 1070 src_reg = G0; | |
| 1071 } else { | |
| 1072 __ set(value, O7); | |
| 1073 } | |
| 1074 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1075 __ stw(src_reg, addr.base(), addr.disp()); | |
| 1076 break; | |
| 1077 } | |
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1078 case T_ADDRESS: { |
| 0 | 1079 Register src_reg = O7; |
| 1080 int value = c->as_jint_bits(); | |
| 1081 if (value == 0) { | |
| 1082 src_reg = G0; | |
| 1083 } else { | |
| 1084 __ set(value, O7); | |
| 1085 } | |
| 1086 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 2002 | 1087 __ st_ptr(src_reg, addr.base(), addr.disp()); |
| 0 | 1088 break; |
| 1089 } | |
| 1090 case T_OBJECT: { | |
| 1091 Register src_reg = O7; | |
| 1092 jobject2reg(c->as_jobject(), src_reg); | |
| 1093 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1094 __ st_ptr(src_reg, addr.base(), addr.disp()); | |
| 1095 break; | |
| 1096 } | |
| 1097 case T_LONG: | |
| 1098 case T_DOUBLE: { | |
| 1099 Address addr = frame_map()->address_for_double_slot(dest->double_stack_ix()); | |
| 1100 | |
| 1101 Register tmp = O7; | |
| 1102 int value_lo = c->as_jint_lo_bits(); | |
| 1103 if (value_lo == 0) { | |
| 1104 tmp = G0; | |
| 1105 } else { | |
| 1106 __ set(value_lo, O7); | |
| 1107 } | |
| 1108 __ stw(tmp, addr.base(), addr.disp() + lo_word_offset_in_bytes); | |
| 1109 int value_hi = c->as_jint_hi_bits(); | |
| 1110 if (value_hi == 0) { | |
| 1111 tmp = G0; | |
| 1112 } else { | |
| 1113 __ set(value_hi, O7); | |
| 1114 } | |
| 1115 __ stw(tmp, addr.base(), addr.disp() + hi_word_offset_in_bytes); | |
| 1116 break; | |
| 1117 } | |
| 1118 default: | |
| 1119 Unimplemented(); | |
| 1120 } | |
| 1121 } | |
| 1122 | |
| 1123 | |
| 2002 | 1124 void LIR_Assembler::const2mem(LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info, bool wide) { |
| 0 | 1125 LIR_Const* c = src->as_constant_ptr(); |
| 1126 LIR_Address* addr = dest->as_address_ptr(); | |
| 1127 Register base = addr->base()->as_pointer_register(); | |
| 2002 | 1128 int offset = -1; |
| 1129 | |
| 0 | 1130 switch (c->type()) { |
| 1131 case T_INT: | |
|
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1132 case T_FLOAT: |
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1133 case T_ADDRESS: { |
| 0 | 1134 LIR_Opr tmp = FrameMap::O7_opr; |
| 1135 int value = c->as_jint_bits(); | |
| 1136 if (value == 0) { | |
| 1137 tmp = FrameMap::G0_opr; | |
| 1138 } else if (Assembler::is_simm13(value)) { | |
| 1139 __ set(value, O7); | |
| 1140 } | |
| 1141 if (addr->index()->is_valid()) { | |
| 1142 assert(addr->disp() == 0, "must be zero"); | |
| 2002 | 1143 offset = store(tmp, base, addr->index()->as_pointer_register(), type, wide); |
| 0 | 1144 } else { |
| 1145 assert(Assembler::is_simm13(addr->disp()), "can't handle larger addresses"); | |
| 2002 | 1146 offset = store(tmp, base, addr->disp(), type, wide, false); |
| 0 | 1147 } |
| 1148 break; | |
| 1149 } | |
| 1150 case T_LONG: | |
| 1151 case T_DOUBLE: { | |
| 1152 assert(!addr->index()->is_valid(), "can't handle reg reg address here"); | |
| 1153 assert(Assembler::is_simm13(addr->disp()) && | |
| 1154 Assembler::is_simm13(addr->disp() + 4), "can't handle larger addresses"); | |
| 1155 | |
| 2002 | 1156 LIR_Opr tmp = FrameMap::O7_opr; |
| 0 | 1157 int value_lo = c->as_jint_lo_bits(); |
| 1158 if (value_lo == 0) { | |
| 2002 | 1159 tmp = FrameMap::G0_opr; |
| 0 | 1160 } else { |
| 1161 __ set(value_lo, O7); | |
| 1162 } | |
| 2002 | 1163 offset = store(tmp, base, addr->disp() + lo_word_offset_in_bytes, T_INT, wide, false); |
| 0 | 1164 int value_hi = c->as_jint_hi_bits(); |
| 1165 if (value_hi == 0) { | |
| 2002 | 1166 tmp = FrameMap::G0_opr; |
| 0 | 1167 } else { |
| 1168 __ set(value_hi, O7); | |
| 1169 } | |
| 4052 | 1170 store(tmp, base, addr->disp() + hi_word_offset_in_bytes, T_INT, wide, false); |
| 0 | 1171 break; |
| 1172 } | |
| 1173 case T_OBJECT: { | |
| 1174 jobject obj = c->as_jobject(); | |
| 1175 LIR_Opr tmp; | |
| 1176 if (obj == NULL) { | |
| 1177 tmp = FrameMap::G0_opr; | |
| 1178 } else { | |
| 1179 tmp = FrameMap::O7_opr; | |
| 1180 jobject2reg(c->as_jobject(), O7); | |
| 1181 } | |
| 1182 // handle either reg+reg or reg+disp address | |
| 1183 if (addr->index()->is_valid()) { | |
| 1184 assert(addr->disp() == 0, "must be zero"); | |
| 2002 | 1185 offset = store(tmp, base, addr->index()->as_pointer_register(), type, wide); |
| 0 | 1186 } else { |
| 1187 assert(Assembler::is_simm13(addr->disp()), "can't handle larger addresses"); | |
| 2002 | 1188 offset = store(tmp, base, addr->disp(), type, wide, false); |
| 0 | 1189 } |
| 1190 | |
| 1191 break; | |
| 1192 } | |
| 1193 default: | |
| 1194 Unimplemented(); | |
| 1195 } | |
| 2002 | 1196 if (info != NULL) { |
| 1197 assert(offset != -1, "offset should've been set"); | |
| 1198 add_debug_info_for_null_check(offset, info); | |
| 1199 } | |
| 0 | 1200 } |
| 1201 | |
| 1202 | |
| 1203 void LIR_Assembler::const2reg(LIR_Opr src, LIR_Opr dest, LIR_PatchCode patch_code, CodeEmitInfo* info) { | |
| 1204 LIR_Const* c = src->as_constant_ptr(); | |
| 1205 LIR_Opr to_reg = dest; | |
| 1206 | |
| 1207 switch (c->type()) { | |
| 1208 case T_INT: | |
|
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1209 case T_ADDRESS: |
| 0 | 1210 { |
| 1211 jint con = c->as_jint(); | |
| 1212 if (to_reg->is_single_cpu()) { | |
| 1213 assert(patch_code == lir_patch_none, "no patching handled here"); | |
| 1214 __ set(con, to_reg->as_register()); | |
| 1215 } else { | |
| 1216 ShouldNotReachHere(); | |
| 1217 assert(to_reg->is_single_fpu(), "wrong register kind"); | |
| 1218 | |
| 1219 __ set(con, O7); | |
| 727 | 1220 Address temp_slot(SP, (frame::register_save_words * wordSize) + STACK_BIAS); |
| 0 | 1221 __ st(O7, temp_slot); |
| 1222 __ ldf(FloatRegisterImpl::S, temp_slot, to_reg->as_float_reg()); | |
| 1223 } | |
| 1224 } | |
| 1225 break; | |
| 1226 | |
| 1227 case T_LONG: | |
| 1228 { | |
| 1229 jlong con = c->as_jlong(); | |
| 1230 | |
| 1231 if (to_reg->is_double_cpu()) { | |
| 1232 #ifdef _LP64 | |
| 1233 __ set(con, to_reg->as_register_lo()); | |
| 1234 #else | |
| 1235 __ set(low(con), to_reg->as_register_lo()); | |
| 1236 __ set(high(con), to_reg->as_register_hi()); | |
| 1237 #endif | |
| 1238 #ifdef _LP64 | |
| 1239 } else if (to_reg->is_single_cpu()) { | |
| 1240 __ set(con, to_reg->as_register()); | |
| 1241 #endif | |
| 1242 } else { | |
| 1243 ShouldNotReachHere(); | |
| 1244 assert(to_reg->is_double_fpu(), "wrong register kind"); | |
| 727 | 1245 Address temp_slot_lo(SP, ((frame::register_save_words ) * wordSize) + STACK_BIAS); |
| 1246 Address temp_slot_hi(SP, ((frame::register_save_words) * wordSize) + (longSize/2) + STACK_BIAS); | |
| 0 | 1247 __ set(low(con), O7); |
| 1248 __ st(O7, temp_slot_lo); | |
| 1249 __ set(high(con), O7); | |
| 1250 __ st(O7, temp_slot_hi); | |
| 1251 __ ldf(FloatRegisterImpl::D, temp_slot_lo, to_reg->as_double_reg()); | |
| 1252 } | |
| 1253 } | |
| 1254 break; | |
| 1255 | |
| 1256 case T_OBJECT: | |
| 1257 { | |
| 1258 if (patch_code == lir_patch_none) { | |
| 1259 jobject2reg(c->as_jobject(), to_reg->as_register()); | |
| 1260 } else { | |
| 1261 jobject2reg_with_patching(to_reg->as_register(), info); | |
| 1262 } | |
| 1263 } | |
| 1264 break; | |
| 1265 | |
|
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1266 case T_METADATA: |
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1267 { |
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1268 if (patch_code == lir_patch_none) { |
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1269 metadata2reg(c->as_metadata(), to_reg->as_register()); |
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1270 } else { |
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1271 klass2reg_with_patching(to_reg->as_register(), info); |
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1272 } |
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1273 } |
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1274 break; |
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1275 |
| 0 | 1276 case T_FLOAT: |
| 1277 { | |
| 1278 address const_addr = __ float_constant(c->as_jfloat()); | |
| 1279 if (const_addr == NULL) { | |
| 1280 bailout("const section overflow"); | |
| 1281 break; | |
| 1282 } | |
| 1283 RelocationHolder rspec = internal_word_Relocation::spec(const_addr); | |
| 727 | 1284 AddressLiteral const_addrlit(const_addr, rspec); |
| 0 | 1285 if (to_reg->is_single_fpu()) { |
| 727 | 1286 __ patchable_sethi(const_addrlit, O7); |
| 0 | 1287 __ relocate(rspec); |
| 727 | 1288 __ ldf(FloatRegisterImpl::S, O7, const_addrlit.low10(), to_reg->as_float_reg()); |
| 0 | 1289 |
| 1290 } else { | |
| 1291 assert(to_reg->is_single_cpu(), "Must be a cpu register."); | |
| 1292 | |
| 727 | 1293 __ set(const_addrlit, O7); |
| 2002 | 1294 __ ld(O7, 0, to_reg->as_register()); |
| 0 | 1295 } |
| 1296 } | |
| 1297 break; | |
| 1298 | |
| 1299 case T_DOUBLE: | |
| 1300 { | |
| 1301 address const_addr = __ double_constant(c->as_jdouble()); | |
| 1302 if (const_addr == NULL) { | |
| 1303 bailout("const section overflow"); | |
| 1304 break; | |
| 1305 } | |
| 1306 RelocationHolder rspec = internal_word_Relocation::spec(const_addr); | |
| 1307 | |
| 1308 if (to_reg->is_double_fpu()) { | |
| 727 | 1309 AddressLiteral const_addrlit(const_addr, rspec); |
| 1310 __ patchable_sethi(const_addrlit, O7); | |
| 0 | 1311 __ relocate(rspec); |
| 727 | 1312 __ ldf (FloatRegisterImpl::D, O7, const_addrlit.low10(), to_reg->as_double_reg()); |
| 0 | 1313 } else { |
| 1314 assert(to_reg->is_double_cpu(), "Must be a long register."); | |
| 1315 #ifdef _LP64 | |
| 1316 __ set(jlong_cast(c->as_jdouble()), to_reg->as_register_lo()); | |
| 1317 #else | |
| 1318 __ set(low(jlong_cast(c->as_jdouble())), to_reg->as_register_lo()); | |
| 1319 __ set(high(jlong_cast(c->as_jdouble())), to_reg->as_register_hi()); | |
| 1320 #endif | |
| 1321 } | |
| 1322 | |
| 1323 } | |
| 1324 break; | |
| 1325 | |
| 1326 default: | |
| 1327 ShouldNotReachHere(); | |
| 1328 } | |
| 1329 } | |
| 1330 | |
| 1331 Address LIR_Assembler::as_Address(LIR_Address* addr) { | |
| 1332 Register reg = addr->base()->as_register(); | |
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1333 LIR_Opr index = addr->index(); |
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1334 if (index->is_illegal()) { |
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1335 return Address(reg, addr->disp()); |
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1336 } else { |
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1337 assert (addr->disp() == 0, "unsupported address mode"); |
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1338 return Address(reg, index->as_pointer_register()); |
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1339 } |
| 0 | 1340 } |
| 1341 | |
| 1342 | |
| 1343 void LIR_Assembler::stack2stack(LIR_Opr src, LIR_Opr dest, BasicType type) { | |
| 1344 switch (type) { | |
| 1345 case T_INT: | |
| 1346 case T_FLOAT: { | |
| 1347 Register tmp = O7; | |
| 1348 Address from = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1349 Address to = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1350 __ lduw(from.base(), from.disp(), tmp); | |
| 1351 __ stw(tmp, to.base(), to.disp()); | |
| 1352 break; | |
| 1353 } | |
| 1354 case T_OBJECT: { | |
| 1355 Register tmp = O7; | |
| 1356 Address from = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1357 Address to = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1358 __ ld_ptr(from.base(), from.disp(), tmp); | |
| 1359 __ st_ptr(tmp, to.base(), to.disp()); | |
| 1360 break; | |
| 1361 } | |
| 1362 case T_LONG: | |
| 1363 case T_DOUBLE: { | |
| 1364 Register tmp = O7; | |
| 1365 Address from = frame_map()->address_for_double_slot(src->double_stack_ix()); | |
| 1366 Address to = frame_map()->address_for_double_slot(dest->double_stack_ix()); | |
| 1367 __ lduw(from.base(), from.disp(), tmp); | |
| 1368 __ stw(tmp, to.base(), to.disp()); | |
| 1369 __ lduw(from.base(), from.disp() + 4, tmp); | |
| 1370 __ stw(tmp, to.base(), to.disp() + 4); | |
| 1371 break; | |
| 1372 } | |
| 1373 | |
| 1374 default: | |
| 1375 ShouldNotReachHere(); | |
| 1376 } | |
| 1377 } | |
| 1378 | |
| 1379 | |
| 1380 Address LIR_Assembler::as_Address_hi(LIR_Address* addr) { | |
| 1381 Address base = as_Address(addr); | |
| 727 | 1382 return Address(base.base(), base.disp() + hi_word_offset_in_bytes); |
| 0 | 1383 } |
| 1384 | |
| 1385 | |
| 1386 Address LIR_Assembler::as_Address_lo(LIR_Address* addr) { | |
| 1387 Address base = as_Address(addr); | |
| 727 | 1388 return Address(base.base(), base.disp() + lo_word_offset_in_bytes); |
| 0 | 1389 } |
| 1390 | |
| 1391 | |
| 1392 void LIR_Assembler::mem2reg(LIR_Opr src_opr, LIR_Opr dest, BasicType type, | |
| 2002 | 1393 LIR_PatchCode patch_code, CodeEmitInfo* info, bool wide, bool unaligned) { |
| 0 | 1394 |
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1395 assert(type != T_METADATA, "load of metadata ptr not supported"); |
| 0 | 1396 LIR_Address* addr = src_opr->as_address_ptr(); |
| 1397 LIR_Opr to_reg = dest; | |
| 1398 | |
| 1399 Register src = addr->base()->as_pointer_register(); | |
| 1400 Register disp_reg = noreg; | |
| 1401 int disp_value = addr->disp(); | |
| 1402 bool needs_patching = (patch_code != lir_patch_none); | |
| 1403 | |
| 1404 if (addr->base()->type() == T_OBJECT) { | |
| 1405 __ verify_oop(src); | |
| 1406 } | |
| 1407 | |
| 1408 PatchingStub* patch = NULL; | |
| 1409 if (needs_patching) { | |
| 1410 patch = new PatchingStub(_masm, PatchingStub::access_field_id); | |
| 1411 assert(!to_reg->is_double_cpu() || | |
| 1412 patch_code == lir_patch_none || | |
| 1413 patch_code == lir_patch_normal, "patching doesn't match register"); | |
| 1414 } | |
| 1415 | |
| 1416 if (addr->index()->is_illegal()) { | |
| 1417 if (!Assembler::is_simm13(disp_value) && (!unaligned || Assembler::is_simm13(disp_value + 4))) { | |
| 1418 if (needs_patching) { | |
| 727 | 1419 __ patchable_set(0, O7); |
| 0 | 1420 } else { |
| 1421 __ set(disp_value, O7); | |
| 1422 } | |
| 1423 disp_reg = O7; | |
| 1424 } | |
| 1425 } else if (unaligned || PatchALot) { | |
| 1426 __ add(src, addr->index()->as_register(), O7); | |
| 1427 src = O7; | |
| 1428 } else { | |
| 1429 disp_reg = addr->index()->as_pointer_register(); | |
| 1430 assert(disp_value == 0, "can't handle 3 operand addresses"); | |
| 1431 } | |
| 1432 | |
| 1433 // remember the offset of the load. The patching_epilog must be done | |
| 1434 // before the call to add_debug_info, otherwise the PcDescs don't get | |
| 1435 // entered in increasing order. | |
| 1436 int offset = code_offset(); | |
| 1437 | |
| 1438 assert(disp_reg != noreg || Assembler::is_simm13(disp_value), "should have set this up"); | |
| 1439 if (disp_reg == noreg) { | |
| 2002 | 1440 offset = load(src, disp_value, to_reg, type, wide, unaligned); |
| 0 | 1441 } else { |
| 1442 assert(!unaligned, "can't handle this"); | |
| 2002 | 1443 offset = load(src, disp_reg, to_reg, type, wide); |
| 0 | 1444 } |
| 1445 | |
| 1446 if (patch != NULL) { | |
| 1447 patching_epilog(patch, patch_code, src, info); | |
| 1448 } | |
| 1449 if (info != NULL) add_debug_info_for_null_check(offset, info); | |
| 1450 } | |
| 1451 | |
| 1452 | |
| 1453 void LIR_Assembler::prefetchr(LIR_Opr src) { | |
| 1454 LIR_Address* addr = src->as_address_ptr(); | |
| 1455 Address from_addr = as_Address(addr); | |
| 1456 | |
| 1457 if (VM_Version::has_v9()) { | |
| 1458 __ prefetch(from_addr, Assembler::severalReads); | |
| 1459 } | |
| 1460 } | |
| 1461 | |
| 1462 | |
| 1463 void LIR_Assembler::prefetchw(LIR_Opr src) { | |
| 1464 LIR_Address* addr = src->as_address_ptr(); | |
| 1465 Address from_addr = as_Address(addr); | |
| 1466 | |
| 1467 if (VM_Version::has_v9()) { | |
| 1468 __ prefetch(from_addr, Assembler::severalWritesAndPossiblyReads); | |
| 1469 } | |
| 1470 } | |
| 1471 | |
| 1472 | |
| 1473 void LIR_Assembler::stack2reg(LIR_Opr src, LIR_Opr dest, BasicType type) { | |
| 1474 Address addr; | |
| 1475 if (src->is_single_word()) { | |
| 1476 addr = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1477 } else if (src->is_double_word()) { | |
| 1478 addr = frame_map()->address_for_double_slot(src->double_stack_ix()); | |
| 1479 } | |
| 1480 | |
| 1481 bool unaligned = (addr.disp() - STACK_BIAS) % 8 != 0; | |
| 2002 | 1482 load(addr.base(), addr.disp(), dest, dest->type(), true /*wide*/, unaligned); |
| 0 | 1483 } |
| 1484 | |
| 1485 | |
| 1486 void LIR_Assembler::reg2stack(LIR_Opr from_reg, LIR_Opr dest, BasicType type, bool pop_fpu_stack) { | |
| 1487 Address addr; | |
| 1488 if (dest->is_single_word()) { | |
| 1489 addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1490 } else if (dest->is_double_word()) { | |
| 1491 addr = frame_map()->address_for_slot(dest->double_stack_ix()); | |
| 1492 } | |
| 1493 bool unaligned = (addr.disp() - STACK_BIAS) % 8 != 0; | |
| 2002 | 1494 store(from_reg, addr.base(), addr.disp(), from_reg->type(), true /*wide*/, unaligned); |
| 0 | 1495 } |
| 1496 | |
| 1497 | |
| 1498 void LIR_Assembler::reg2reg(LIR_Opr from_reg, LIR_Opr to_reg) { | |
| 1499 if (from_reg->is_float_kind() && to_reg->is_float_kind()) { | |
| 1500 if (from_reg->is_double_fpu()) { | |
| 1501 // double to double moves | |
| 1502 assert(to_reg->is_double_fpu(), "should match"); | |
| 1503 __ fmov(FloatRegisterImpl::D, from_reg->as_double_reg(), to_reg->as_double_reg()); | |
| 1504 } else { | |
| 1505 // float to float moves | |
| 1506 assert(to_reg->is_single_fpu(), "should match"); | |
| 1507 __ fmov(FloatRegisterImpl::S, from_reg->as_float_reg(), to_reg->as_float_reg()); | |
| 1508 } | |
| 1509 } else if (!from_reg->is_float_kind() && !to_reg->is_float_kind()) { | |
| 1510 if (from_reg->is_double_cpu()) { | |
| 1511 #ifdef _LP64 | |
| 1512 __ mov(from_reg->as_pointer_register(), to_reg->as_pointer_register()); | |
| 1513 #else | |
| 1514 assert(to_reg->is_double_cpu() && | |
| 1515 from_reg->as_register_hi() != to_reg->as_register_lo() && | |
| 1516 from_reg->as_register_lo() != to_reg->as_register_hi(), | |
| 1517 "should both be long and not overlap"); | |
| 1518 // long to long moves | |
| 1519 __ mov(from_reg->as_register_hi(), to_reg->as_register_hi()); | |
| 1520 __ mov(from_reg->as_register_lo(), to_reg->as_register_lo()); | |
| 1521 #endif | |
| 1522 #ifdef _LP64 | |
| 1523 } else if (to_reg->is_double_cpu()) { | |
| 1524 // int to int moves | |
| 1525 __ mov(from_reg->as_register(), to_reg->as_register_lo()); | |
| 1526 #endif | |
| 1527 } else { | |
| 1528 // int to int moves | |
| 1529 __ mov(from_reg->as_register(), to_reg->as_register()); | |
| 1530 } | |
| 1531 } else { | |
| 1532 ShouldNotReachHere(); | |
| 1533 } | |
| 1534 if (to_reg->type() == T_OBJECT || to_reg->type() == T_ARRAY) { | |
| 1535 __ verify_oop(to_reg->as_register()); | |
| 1536 } | |
| 1537 } | |
| 1538 | |
| 1539 | |
| 1540 void LIR_Assembler::reg2mem(LIR_Opr from_reg, LIR_Opr dest, BasicType type, | |
| 1541 LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, | |
| 2002 | 1542 bool wide, bool unaligned) { |
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1543 assert(type != T_METADATA, "store of metadata ptr not supported"); |
| 0 | 1544 LIR_Address* addr = dest->as_address_ptr(); |
| 1545 | |
| 1546 Register src = addr->base()->as_pointer_register(); | |
| 1547 Register disp_reg = noreg; | |
| 1548 int disp_value = addr->disp(); | |
| 1549 bool needs_patching = (patch_code != lir_patch_none); | |
| 1550 | |
| 1551 if (addr->base()->is_oop_register()) { | |
| 1552 __ verify_oop(src); | |
| 1553 } | |
| 1554 | |
| 1555 PatchingStub* patch = NULL; | |
| 1556 if (needs_patching) { | |
| 1557 patch = new PatchingStub(_masm, PatchingStub::access_field_id); | |
| 1558 assert(!from_reg->is_double_cpu() || | |
| 1559 patch_code == lir_patch_none || | |
| 1560 patch_code == lir_patch_normal, "patching doesn't match register"); | |
| 1561 } | |
| 1562 | |
| 1563 if (addr->index()->is_illegal()) { | |
| 1564 if (!Assembler::is_simm13(disp_value) && (!unaligned || Assembler::is_simm13(disp_value + 4))) { | |
| 1565 if (needs_patching) { | |
| 727 | 1566 __ patchable_set(0, O7); |
| 0 | 1567 } else { |
| 1568 __ set(disp_value, O7); | |
| 1569 } | |
| 1570 disp_reg = O7; | |
| 1571 } | |
| 1572 } else if (unaligned || PatchALot) { | |
| 1573 __ add(src, addr->index()->as_register(), O7); | |
| 1574 src = O7; | |
| 1575 } else { | |
| 1576 disp_reg = addr->index()->as_pointer_register(); | |
| 1577 assert(disp_value == 0, "can't handle 3 operand addresses"); | |
| 1578 } | |
| 1579 | |
| 1580 // remember the offset of the store. The patching_epilog must be done | |
| 1581 // before the call to add_debug_info_for_null_check, otherwise the PcDescs don't get | |
| 1582 // entered in increasing order. | |
| 1583 int offset; | |
| 1584 | |
| 1585 assert(disp_reg != noreg || Assembler::is_simm13(disp_value), "should have set this up"); | |
| 1586 if (disp_reg == noreg) { | |
| 2002 | 1587 offset = store(from_reg, src, disp_value, type, wide, unaligned); |
| 0 | 1588 } else { |
| 1589 assert(!unaligned, "can't handle this"); | |
| 2002 | 1590 offset = store(from_reg, src, disp_reg, type, wide); |
| 0 | 1591 } |
| 1592 | |
| 1593 if (patch != NULL) { | |
| 1594 patching_epilog(patch, patch_code, src, info); | |
| 1595 } | |
| 1596 | |
| 1597 if (info != NULL) add_debug_info_for_null_check(offset, info); | |
| 1598 } | |
| 1599 | |
| 1600 | |
| 1601 void LIR_Assembler::return_op(LIR_Opr result) { | |
| 1602 // the poll may need a register so just pick one that isn't the return register | |
| 1783 | 1603 #if defined(TIERED) && !defined(_LP64) |
| 0 | 1604 if (result->type_field() == LIR_OprDesc::long_type) { |
| 1605 // Must move the result to G1 | |
| 1606 // Must leave proper result in O0,O1 and G1 (TIERED only) | |
| 1607 __ sllx(I0, 32, G1); // Shift bits into high G1 | |
| 1608 __ srl (I1, 0, I1); // Zero extend O1 (harmless?) | |
| 1609 __ or3 (I1, G1, G1); // OR 64 bits into G1 | |
| 1783 | 1610 #ifdef ASSERT |
| 1611 // mangle it so any problems will show up | |
| 1612 __ set(0xdeadbeef, I0); | |
| 1613 __ set(0xdeadbeef, I1); | |
| 1614 #endif | |
| 0 | 1615 } |
| 1616 #endif // TIERED | |
| 1617 __ set((intptr_t)os::get_polling_page(), L0); | |
| 1618 __ relocate(relocInfo::poll_return_type); | |
| 1619 __ ld_ptr(L0, 0, G0); | |
| 1620 __ ret(); | |
| 1621 __ delayed()->restore(); | |
| 1622 } | |
| 1623 | |
| 1624 | |
| 1625 int LIR_Assembler::safepoint_poll(LIR_Opr tmp, CodeEmitInfo* info) { | |
| 1626 __ set((intptr_t)os::get_polling_page(), tmp->as_register()); | |
| 1627 if (info != NULL) { | |
| 1628 add_debug_info_for_branch(info); | |
| 1629 } else { | |
| 1630 __ relocate(relocInfo::poll_type); | |
| 1631 } | |
| 1632 | |
| 1633 int offset = __ offset(); | |
| 1634 __ ld_ptr(tmp->as_register(), 0, G0); | |
| 1635 | |
| 1636 return offset; | |
| 1637 } | |
| 1638 | |
| 1639 | |
| 1640 void LIR_Assembler::emit_static_call_stub() { | |
| 1641 address call_pc = __ pc(); | |
| 1642 address stub = __ start_a_stub(call_stub_size); | |
| 1643 if (stub == NULL) { | |
| 1644 bailout("static call stub overflow"); | |
| 1645 return; | |
| 1646 } | |
| 1647 | |
| 1648 int start = __ offset(); | |
| 1649 __ relocate(static_stub_Relocation::spec(call_pc)); | |
| 1650 | |
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1651 __ set_metadata(NULL, G5); |
| 0 | 1652 // must be set to -1 at code generation time |
| 727 | 1653 AddressLiteral addrlit(-1); |
| 1654 __ jump_to(addrlit, G3); | |
| 0 | 1655 __ delayed()->nop(); |
| 1656 | |
| 1657 assert(__ offset() - start <= call_stub_size, "stub too big"); | |
| 1658 __ end_a_stub(); | |
| 1659 } | |
| 1660 | |
| 1661 | |
| 1662 void LIR_Assembler::comp_op(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Op2* op) { | |
| 1663 if (opr1->is_single_fpu()) { | |
| 1664 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, opr1->as_float_reg(), opr2->as_float_reg()); | |
| 1665 } else if (opr1->is_double_fpu()) { | |
| 1666 __ fcmp(FloatRegisterImpl::D, Assembler::fcc0, opr1->as_double_reg(), opr2->as_double_reg()); | |
| 1667 } else if (opr1->is_single_cpu()) { | |
| 1668 if (opr2->is_constant()) { | |
| 1669 switch (opr2->as_constant_ptr()->type()) { | |
| 1670 case T_INT: | |
| 1671 { jint con = opr2->as_constant_ptr()->as_jint(); | |
| 1672 if (Assembler::is_simm13(con)) { | |
| 1673 __ cmp(opr1->as_register(), con); | |
| 1674 } else { | |
| 1675 __ set(con, O7); | |
| 1676 __ cmp(opr1->as_register(), O7); | |
| 1677 } | |
| 1678 } | |
| 1679 break; | |
| 1680 | |
| 1681 case T_OBJECT: | |
| 1682 // there are only equal/notequal comparisions on objects | |
| 1683 { jobject con = opr2->as_constant_ptr()->as_jobject(); | |
| 1684 if (con == NULL) { | |
| 1685 __ cmp(opr1->as_register(), 0); | |
| 1686 } else { | |
| 1687 jobject2reg(con, O7); | |
| 1688 __ cmp(opr1->as_register(), O7); | |
| 1689 } | |
| 1690 } | |
| 1691 break; | |
| 1692 | |
| 1693 default: | |
| 1694 ShouldNotReachHere(); | |
| 1695 break; | |
| 1696 } | |
| 1697 } else { | |
| 1698 if (opr2->is_address()) { | |
| 1699 LIR_Address * addr = opr2->as_address_ptr(); | |
| 1700 BasicType type = addr->type(); | |
| 1701 if ( type == T_OBJECT ) __ ld_ptr(as_Address(addr), O7); | |
| 1702 else __ ld(as_Address(addr), O7); | |
| 1703 __ cmp(opr1->as_register(), O7); | |
| 1704 } else { | |
| 1705 __ cmp(opr1->as_register(), opr2->as_register()); | |
| 1706 } | |
| 1707 } | |
| 1708 } else if (opr1->is_double_cpu()) { | |
| 1709 Register xlo = opr1->as_register_lo(); | |
| 1710 Register xhi = opr1->as_register_hi(); | |
| 1711 if (opr2->is_constant() && opr2->as_jlong() == 0) { | |
| 1712 assert(condition == lir_cond_equal || condition == lir_cond_notEqual, "only handles these cases"); | |
| 1713 #ifdef _LP64 | |
| 1714 __ orcc(xhi, G0, G0); | |
| 1715 #else | |
| 1716 __ orcc(xhi, xlo, G0); | |
| 1717 #endif | |
| 1718 } else if (opr2->is_register()) { | |
| 1719 Register ylo = opr2->as_register_lo(); | |
| 1720 Register yhi = opr2->as_register_hi(); | |
| 1721 #ifdef _LP64 | |
| 1722 __ cmp(xlo, ylo); | |
| 1723 #else | |
| 1724 __ subcc(xlo, ylo, xlo); | |
| 1725 __ subccc(xhi, yhi, xhi); | |
| 1726 if (condition == lir_cond_equal || condition == lir_cond_notEqual) { | |
| 1727 __ orcc(xhi, xlo, G0); | |
| 1728 } | |
| 1729 #endif | |
| 1730 } else { | |
| 1731 ShouldNotReachHere(); | |
| 1732 } | |
| 1733 } else if (opr1->is_address()) { | |
| 1734 LIR_Address * addr = opr1->as_address_ptr(); | |
| 1735 BasicType type = addr->type(); | |
| 1736 assert (opr2->is_constant(), "Checking"); | |
| 1737 if ( type == T_OBJECT ) __ ld_ptr(as_Address(addr), O7); | |
| 1738 else __ ld(as_Address(addr), O7); | |
| 1739 __ cmp(O7, opr2->as_constant_ptr()->as_jint()); | |
| 1740 } else { | |
| 1741 ShouldNotReachHere(); | |
| 1742 } | |
| 1743 } | |
| 1744 | |
| 1745 | |
| 1746 void LIR_Assembler::comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dst, LIR_Op2* op){ | |
| 1747 if (code == lir_cmp_fd2i || code == lir_ucmp_fd2i) { | |
| 1748 bool is_unordered_less = (code == lir_ucmp_fd2i); | |
| 1749 if (left->is_single_fpu()) { | |
| 1750 __ float_cmp(true, is_unordered_less ? -1 : 1, left->as_float_reg(), right->as_float_reg(), dst->as_register()); | |
| 1751 } else if (left->is_double_fpu()) { | |
| 1752 __ float_cmp(false, is_unordered_less ? -1 : 1, left->as_double_reg(), right->as_double_reg(), dst->as_register()); | |
| 1753 } else { | |
| 1754 ShouldNotReachHere(); | |
| 1755 } | |
| 1756 } else if (code == lir_cmp_l2i) { | |
| 1369 | 1757 #ifdef _LP64 |
| 1758 __ lcmp(left->as_register_lo(), right->as_register_lo(), dst->as_register()); | |
| 1759 #else | |
| 0 | 1760 __ lcmp(left->as_register_hi(), left->as_register_lo(), |
| 1761 right->as_register_hi(), right->as_register_lo(), | |
| 1762 dst->as_register()); | |
| 1369 | 1763 #endif |
| 0 | 1764 } else { |
| 1765 ShouldNotReachHere(); | |
| 1766 } | |
| 1767 } | |
| 1768 | |
| 1769 | |
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1770 void LIR_Assembler::cmove(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type) { |
| 0 | 1771 Assembler::Condition acond; |
| 1772 switch (condition) { | |
| 1773 case lir_cond_equal: acond = Assembler::equal; break; | |
| 1774 case lir_cond_notEqual: acond = Assembler::notEqual; break; | |
| 1775 case lir_cond_less: acond = Assembler::less; break; | |
| 1776 case lir_cond_lessEqual: acond = Assembler::lessEqual; break; | |
| 1777 case lir_cond_greaterEqual: acond = Assembler::greaterEqual; break; | |
| 1778 case lir_cond_greater: acond = Assembler::greater; break; | |
| 1779 case lir_cond_aboveEqual: acond = Assembler::greaterEqualUnsigned; break; | |
| 1780 case lir_cond_belowEqual: acond = Assembler::lessEqualUnsigned; break; | |
| 1781 default: ShouldNotReachHere(); | |
| 1782 }; | |
| 1783 | |
| 1784 if (opr1->is_constant() && opr1->type() == T_INT) { | |
| 1785 Register dest = result->as_register(); | |
| 1786 // load up first part of constant before branch | |
| 1787 // and do the rest in the delay slot. | |
| 1788 if (!Assembler::is_simm13(opr1->as_jint())) { | |
| 1789 __ sethi(opr1->as_jint(), dest); | |
| 1790 } | |
| 1791 } else if (opr1->is_constant()) { | |
| 1792 const2reg(opr1, result, lir_patch_none, NULL); | |
| 1793 } else if (opr1->is_register()) { | |
| 1794 reg2reg(opr1, result); | |
| 1795 } else if (opr1->is_stack()) { | |
| 1796 stack2reg(opr1, result, result->type()); | |
| 1797 } else { | |
| 1798 ShouldNotReachHere(); | |
| 1799 } | |
| 1800 Label skip; | |
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1801 #ifdef _LP64 |
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1802 if (type == T_INT) { |
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1803 __ br(acond, false, Assembler::pt, skip); |
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1804 } else |
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1805 #endif |
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1806 __ brx(acond, false, Assembler::pt, skip); // checks icc on 32bit and xcc on 64bit |
| 0 | 1807 if (opr1->is_constant() && opr1->type() == T_INT) { |
| 1808 Register dest = result->as_register(); | |
| 1809 if (Assembler::is_simm13(opr1->as_jint())) { | |
| 1810 __ delayed()->or3(G0, opr1->as_jint(), dest); | |
| 1811 } else { | |
| 1812 // the sethi has been done above, so just put in the low 10 bits | |
| 1813 __ delayed()->or3(dest, opr1->as_jint() & 0x3ff, dest); | |
| 1814 } | |
| 1815 } else { | |
| 1816 // can't do anything useful in the delay slot | |
| 1817 __ delayed()->nop(); | |
| 1818 } | |
| 1819 if (opr2->is_constant()) { | |
| 1820 const2reg(opr2, result, lir_patch_none, NULL); | |
| 1821 } else if (opr2->is_register()) { | |
| 1822 reg2reg(opr2, result); | |
| 1823 } else if (opr2->is_stack()) { | |
| 1824 stack2reg(opr2, result, result->type()); | |
| 1825 } else { | |
| 1826 ShouldNotReachHere(); | |
| 1827 } | |
| 1828 __ bind(skip); | |
| 1829 } | |
| 1830 | |
| 1831 | |
| 1832 void LIR_Assembler::arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest, CodeEmitInfo* info, bool pop_fpu_stack) { | |
| 1833 assert(info == NULL, "unused on this code path"); | |
| 1834 assert(left->is_register(), "wrong items state"); | |
| 1835 assert(dest->is_register(), "wrong items state"); | |
| 1836 | |
| 1837 if (right->is_register()) { | |
| 1838 if (dest->is_float_kind()) { | |
| 1839 | |
| 1840 FloatRegister lreg, rreg, res; | |
| 1841 FloatRegisterImpl::Width w; | |
| 1842 if (right->is_single_fpu()) { | |
| 1843 w = FloatRegisterImpl::S; | |
| 1844 lreg = left->as_float_reg(); | |
| 1845 rreg = right->as_float_reg(); | |
| 1846 res = dest->as_float_reg(); | |
| 1847 } else { | |
| 1848 w = FloatRegisterImpl::D; | |
| 1849 lreg = left->as_double_reg(); | |
| 1850 rreg = right->as_double_reg(); | |
| 1851 res = dest->as_double_reg(); | |
| 1852 } | |
| 1853 | |
| 1854 switch (code) { | |
| 1855 case lir_add: __ fadd(w, lreg, rreg, res); break; | |
| 1856 case lir_sub: __ fsub(w, lreg, rreg, res); break; | |
| 1857 case lir_mul: // fall through | |
| 1858 case lir_mul_strictfp: __ fmul(w, lreg, rreg, res); break; | |
| 1859 case lir_div: // fall through | |
| 1860 case lir_div_strictfp: __ fdiv(w, lreg, rreg, res); break; | |
| 1861 default: ShouldNotReachHere(); | |
| 1862 } | |
| 1863 | |
| 1864 } else if (dest->is_double_cpu()) { | |
| 1865 #ifdef _LP64 | |
| 1866 Register dst_lo = dest->as_register_lo(); | |
| 1867 Register op1_lo = left->as_pointer_register(); | |
| 1868 Register op2_lo = right->as_pointer_register(); | |
| 1869 | |
| 1870 switch (code) { | |
| 1871 case lir_add: | |
| 1872 __ add(op1_lo, op2_lo, dst_lo); | |
| 1873 break; | |
| 1874 | |
| 1875 case lir_sub: | |
| 1876 __ sub(op1_lo, op2_lo, dst_lo); | |
| 1877 break; | |
| 1878 | |
| 1879 default: ShouldNotReachHere(); | |
| 1880 } | |
| 1881 #else | |
| 1882 Register op1_lo = left->as_register_lo(); | |
| 1883 Register op1_hi = left->as_register_hi(); | |
| 1884 Register op2_lo = right->as_register_lo(); | |
| 1885 Register op2_hi = right->as_register_hi(); | |
| 1886 Register dst_lo = dest->as_register_lo(); | |
| 1887 Register dst_hi = dest->as_register_hi(); | |
| 1888 | |
| 1889 switch (code) { | |
| 1890 case lir_add: | |
| 1891 __ addcc(op1_lo, op2_lo, dst_lo); | |
| 1892 __ addc (op1_hi, op2_hi, dst_hi); | |
| 1893 break; | |
| 1894 | |
| 1895 case lir_sub: | |
| 1896 __ subcc(op1_lo, op2_lo, dst_lo); | |
| 1897 __ subc (op1_hi, op2_hi, dst_hi); | |
| 1898 break; | |
| 1899 | |
| 1900 default: ShouldNotReachHere(); | |
| 1901 } | |
| 1902 #endif | |
| 1903 } else { | |
| 1904 assert (right->is_single_cpu(), "Just Checking"); | |
| 1905 | |
| 1906 Register lreg = left->as_register(); | |
| 1907 Register res = dest->as_register(); | |
| 1908 Register rreg = right->as_register(); | |
| 1909 switch (code) { | |
| 1910 case lir_add: __ add (lreg, rreg, res); break; | |
| 1911 case lir_sub: __ sub (lreg, rreg, res); break; | |
| 1912 case lir_mul: __ mult (lreg, rreg, res); break; | |
| 1913 default: ShouldNotReachHere(); | |
| 1914 } | |
| 1915 } | |
| 1916 } else { | |
| 1917 assert (right->is_constant(), "must be constant"); | |
| 1918 | |
| 1919 if (dest->is_single_cpu()) { | |
| 1920 Register lreg = left->as_register(); | |
| 1921 Register res = dest->as_register(); | |
| 1922 int simm13 = right->as_constant_ptr()->as_jint(); | |
| 1923 | |
| 1924 switch (code) { | |
| 1925 case lir_add: __ add (lreg, simm13, res); break; | |
| 1926 case lir_sub: __ sub (lreg, simm13, res); break; | |
| 1927 case lir_mul: __ mult (lreg, simm13, res); break; | |
| 1928 default: ShouldNotReachHere(); | |
| 1929 } | |
| 1930 } else { | |
| 1931 Register lreg = left->as_pointer_register(); | |
| 1932 Register res = dest->as_register_lo(); | |
| 1933 long con = right->as_constant_ptr()->as_jlong(); | |
| 1934 assert(Assembler::is_simm13(con), "must be simm13"); | |
| 1935 | |
| 1936 switch (code) { | |
| 1937 case lir_add: __ add (lreg, (int)con, res); break; | |
| 1938 case lir_sub: __ sub (lreg, (int)con, res); break; | |
| 1939 case lir_mul: __ mult (lreg, (int)con, res); break; | |
| 1940 default: ShouldNotReachHere(); | |
| 1941 } | |
| 1942 } | |
| 1943 } | |
| 1944 } | |
| 1945 | |
| 1946 | |
| 1947 void LIR_Assembler::fpop() { | |
| 1948 // do nothing | |
| 1949 } | |
| 1950 | |
| 1951 | |
| 1952 void LIR_Assembler::intrinsic_op(LIR_Code code, LIR_Opr value, LIR_Opr thread, LIR_Opr dest, LIR_Op* op) { | |
| 1953 switch (code) { | |
| 1954 case lir_sin: | |
| 1955 case lir_tan: | |
| 1956 case lir_cos: { | |
| 1957 assert(thread->is_valid(), "preserve the thread object for performance reasons"); | |
| 1958 assert(dest->as_double_reg() == F0, "the result will be in f0/f1"); | |
| 1959 break; | |
| 1960 } | |
| 1961 case lir_sqrt: { | |
| 1962 assert(!thread->is_valid(), "there is no need for a thread_reg for dsqrt"); | |
| 1963 FloatRegister src_reg = value->as_double_reg(); | |
| 1964 FloatRegister dst_reg = dest->as_double_reg(); | |
| 1965 __ fsqrt(FloatRegisterImpl::D, src_reg, dst_reg); | |
| 1966 break; | |
| 1967 } | |
| 1968 case lir_abs: { | |
| 1969 assert(!thread->is_valid(), "there is no need for a thread_reg for fabs"); | |
| 1970 FloatRegister src_reg = value->as_double_reg(); | |
| 1971 FloatRegister dst_reg = dest->as_double_reg(); | |
| 1972 __ fabs(FloatRegisterImpl::D, src_reg, dst_reg); | |
| 1973 break; | |
| 1974 } | |
| 1975 default: { | |
| 1976 ShouldNotReachHere(); | |
| 1977 break; | |
| 1978 } | |
| 1979 } | |
| 1980 } | |
| 1981 | |
| 1982 | |
| 1983 void LIR_Assembler::logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest) { | |
| 1984 if (right->is_constant()) { | |
| 1985 if (dest->is_single_cpu()) { | |
| 1986 int simm13 = right->as_constant_ptr()->as_jint(); | |
| 1987 switch (code) { | |
| 1988 case lir_logic_and: __ and3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1989 case lir_logic_or: __ or3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1990 case lir_logic_xor: __ xor3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1991 default: ShouldNotReachHere(); | |
| 1992 } | |
| 1993 } else { | |
| 1994 long c = right->as_constant_ptr()->as_jlong(); | |
| 1995 assert(c == (int)c && Assembler::is_simm13(c), "out of range"); | |
| 1996 int simm13 = (int)c; | |
| 1997 switch (code) { | |
| 1998 case lir_logic_and: | |
| 1999 #ifndef _LP64 | |
| 2000 __ and3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 2001 #endif | |
| 2002 __ and3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 2003 break; | |
| 2004 | |
| 2005 case lir_logic_or: | |
| 2006 #ifndef _LP64 | |
| 2007 __ or3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 2008 #endif | |
| 2009 __ or3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 2010 break; | |
| 2011 | |
| 2012 case lir_logic_xor: | |
| 2013 #ifndef _LP64 | |
| 2014 __ xor3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 2015 #endif | |
| 2016 __ xor3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 2017 break; | |
| 2018 | |
| 2019 default: ShouldNotReachHere(); | |
| 2020 } | |
| 2021 } | |
| 2022 } else { | |
| 2023 assert(right->is_register(), "right should be in register"); | |
| 2024 | |
| 2025 if (dest->is_single_cpu()) { | |
| 2026 switch (code) { | |
| 2027 case lir_logic_and: __ and3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2028 case lir_logic_or: __ or3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2029 case lir_logic_xor: __ xor3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2030 default: ShouldNotReachHere(); | |
| 2031 } | |
| 2032 } else { | |
| 2033 #ifdef _LP64 | |
| 2034 Register l = (left->is_single_cpu() && left->is_oop_register()) ? left->as_register() : | |
| 2035 left->as_register_lo(); | |
| 2036 Register r = (right->is_single_cpu() && right->is_oop_register()) ? right->as_register() : | |
| 2037 right->as_register_lo(); | |
| 2038 | |
| 2039 switch (code) { | |
| 2040 case lir_logic_and: __ and3 (l, r, dest->as_register_lo()); break; | |
| 2041 case lir_logic_or: __ or3 (l, r, dest->as_register_lo()); break; | |
| 2042 case lir_logic_xor: __ xor3 (l, r, dest->as_register_lo()); break; | |
| 2043 default: ShouldNotReachHere(); | |
| 2044 } | |
| 2045 #else | |
| 2046 switch (code) { | |
| 2047 case lir_logic_and: | |
| 2048 __ and3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2049 __ and3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2050 break; | |
| 2051 | |
| 2052 case lir_logic_or: | |
| 2053 __ or3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2054 __ or3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2055 break; | |
| 2056 | |
| 2057 case lir_logic_xor: | |
| 2058 __ xor3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2059 __ xor3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2060 break; | |
| 2061 | |
| 2062 default: ShouldNotReachHere(); | |
| 2063 } | |
| 2064 #endif | |
| 2065 } | |
| 2066 } | |
| 2067 } | |
| 2068 | |
| 2069 | |
| 2070 int LIR_Assembler::shift_amount(BasicType t) { | |
|
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2071 int elem_size = type2aelembytes(t); |
| 0 | 2072 switch (elem_size) { |
| 2073 case 1 : return 0; | |
| 2074 case 2 : return 1; | |
| 2075 case 4 : return 2; | |
| 2076 case 8 : return 3; | |
| 2077 } | |
| 2078 ShouldNotReachHere(); | |
| 2079 return -1; | |
| 2080 } | |
| 2081 | |
| 2082 | |
|
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2083 void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { |
| 0 | 2084 assert(exceptionOop->as_register() == Oexception, "should match"); |
|
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2085 assert(exceptionPC->as_register() == Oissuing_pc, "should match"); |
| 0 | 2086 |
| 2087 info->add_register_oop(exceptionOop); | |
| 2088 | |
|
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2089 // reuse the debug info from the safepoint poll for the throw op itself |
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2090 address pc_for_athrow = __ pc(); |
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2091 int pc_for_athrow_offset = __ offset(); |
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2092 RelocationHolder rspec = internal_word_Relocation::spec(pc_for_athrow); |
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2093 __ set(pc_for_athrow, Oissuing_pc, rspec); |
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2094 add_call_info(pc_for_athrow_offset, info); // for exception handler |
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2095 |
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2096 __ call(Runtime1::entry_for(Runtime1::handle_exception_id), relocInfo::runtime_call_type); |
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2097 __ delayed()->nop(); |
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2098 } |
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2099 |
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2100 |
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2101 void LIR_Assembler::unwind_op(LIR_Opr exceptionOop) { |
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2102 assert(exceptionOop->as_register() == Oexception, "should match"); |
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2103 |
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2104 __ br(Assembler::always, false, Assembler::pt, _unwind_handler_entry); |
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2105 __ delayed()->nop(); |
| 0 | 2106 } |
| 2107 | |
| 2108 void LIR_Assembler::emit_arraycopy(LIR_OpArrayCopy* op) { | |
| 2109 Register src = op->src()->as_register(); | |
| 2110 Register dst = op->dst()->as_register(); | |
| 2111 Register src_pos = op->src_pos()->as_register(); | |
| 2112 Register dst_pos = op->dst_pos()->as_register(); | |
| 2113 Register length = op->length()->as_register(); | |
| 2114 Register tmp = op->tmp()->as_register(); | |
| 2115 Register tmp2 = O7; | |
| 2116 | |
| 2117 int flags = op->flags(); | |
| 2118 ciArrayKlass* default_type = op->expected_type(); | |
| 2119 BasicType basic_type = default_type != NULL ? default_type->element_type()->basic_type() : T_ILLEGAL; | |
| 2120 if (basic_type == T_ARRAY) basic_type = T_OBJECT; | |
| 2121 | |
|
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2122 #ifdef _LP64 |
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2123 // higher 32bits must be null |
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2124 __ sra(dst_pos, 0, dst_pos); |
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2125 __ sra(src_pos, 0, src_pos); |
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2126 __ sra(length, 0, length); |
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2127 #endif |
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2128 |
| 0 | 2129 // set up the arraycopy stub information |
| 2130 ArrayCopyStub* stub = op->stub(); | |
| 2131 | |
| 2132 // always do stub if no type information is available. it's ok if | |
| 2133 // the known type isn't loaded since the code sanity checks | |
| 2134 // in debug mode and the type isn't required when we know the exact type | |
| 2135 // also check that the type is an array type. | |
| 2446 | 2136 if (op->expected_type() == NULL) { |
| 0 | 2137 __ mov(src, O0); |
| 2138 __ mov(src_pos, O1); | |
| 2139 __ mov(dst, O2); | |
| 2140 __ mov(dst_pos, O3); | |
| 2141 __ mov(length, O4); | |
| 2446 | 2142 address copyfunc_addr = StubRoutines::generic_arraycopy(); |
| 2143 | |
| 2144 if (copyfunc_addr == NULL) { // Use C version if stub was not generated | |
| 2145 __ call_VM_leaf(tmp, CAST_FROM_FN_PTR(address, Runtime1::arraycopy)); | |
| 2146 } else { | |
| 2147 #ifndef PRODUCT | |
| 2148 if (PrintC1Statistics) { | |
| 2149 address counter = (address)&Runtime1::_generic_arraycopystub_cnt; | |
| 2150 __ inc_counter(counter, G1, G3); | |
| 2151 } | |
| 2152 #endif | |
| 2153 __ call_VM_leaf(tmp, copyfunc_addr); | |
| 2154 } | |
| 2155 | |
| 2156 if (copyfunc_addr != NULL) { | |
| 2157 __ xor3(O0, -1, tmp); | |
| 2158 __ sub(length, tmp, length); | |
| 2159 __ add(src_pos, tmp, src_pos); | |
| 3839 | 2160 __ cmp_zero_and_br(Assembler::less, O0, *stub->entry()); |
| 2446 | 2161 __ delayed()->add(dst_pos, tmp, dst_pos); |
| 2162 } else { | |
| 3839 | 2163 __ cmp_zero_and_br(Assembler::less, O0, *stub->entry()); |
| 2446 | 2164 __ delayed()->nop(); |
| 2165 } | |
| 0 | 2166 __ bind(*stub->continuation()); |
| 2167 return; | |
| 2168 } | |
| 2169 | |
| 2170 assert(default_type != NULL && default_type->is_array_klass(), "must be true at this point"); | |
| 2171 | |
| 2172 // make sure src and dst are non-null and load array length | |
| 2173 if (flags & LIR_OpArrayCopy::src_null_check) { | |
| 2174 __ tst(src); | |
| 2002 | 2175 __ brx(Assembler::equal, false, Assembler::pn, *stub->entry()); |
| 0 | 2176 __ delayed()->nop(); |
| 2177 } | |
| 2178 | |
| 2179 if (flags & LIR_OpArrayCopy::dst_null_check) { | |
| 2180 __ tst(dst); | |
| 2002 | 2181 __ brx(Assembler::equal, false, Assembler::pn, *stub->entry()); |
| 0 | 2182 __ delayed()->nop(); |
| 2183 } | |
| 2184 | |
| 2185 if (flags & LIR_OpArrayCopy::src_pos_positive_check) { | |
| 2186 // test src_pos register | |
| 3839 | 2187 __ cmp_zero_and_br(Assembler::less, src_pos, *stub->entry()); |
| 0 | 2188 __ delayed()->nop(); |
| 2189 } | |
| 2190 | |
| 2191 if (flags & LIR_OpArrayCopy::dst_pos_positive_check) { | |
| 2192 // test dst_pos register | |
| 3839 | 2193 __ cmp_zero_and_br(Assembler::less, dst_pos, *stub->entry()); |
| 0 | 2194 __ delayed()->nop(); |
| 2195 } | |
| 2196 | |
| 2197 if (flags & LIR_OpArrayCopy::length_positive_check) { | |
| 2198 // make sure length isn't negative | |
| 3839 | 2199 __ cmp_zero_and_br(Assembler::less, length, *stub->entry()); |
| 0 | 2200 __ delayed()->nop(); |
| 2201 } | |
| 2202 | |
| 2203 if (flags & LIR_OpArrayCopy::src_range_check) { | |
| 2204 __ ld(src, arrayOopDesc::length_offset_in_bytes(), tmp2); | |
| 2205 __ add(length, src_pos, tmp); | |
| 2206 __ cmp(tmp2, tmp); | |
| 2207 __ br(Assembler::carrySet, false, Assembler::pn, *stub->entry()); | |
| 2208 __ delayed()->nop(); | |
| 2209 } | |
| 2210 | |
| 2211 if (flags & LIR_OpArrayCopy::dst_range_check) { | |
| 2212 __ ld(dst, arrayOopDesc::length_offset_in_bytes(), tmp2); | |
| 2213 __ add(length, dst_pos, tmp); | |
| 2214 __ cmp(tmp2, tmp); | |
| 2215 __ br(Assembler::carrySet, false, Assembler::pn, *stub->entry()); | |
| 2216 __ delayed()->nop(); | |
| 2217 } | |
| 2218 | |
| 2446 | 2219 int shift = shift_amount(basic_type); |
| 2220 | |
| 0 | 2221 if (flags & LIR_OpArrayCopy::type_check) { |
| 2446 | 2222 // We don't know the array types are compatible |
| 2223 if (basic_type != T_OBJECT) { | |
| 2224 // Simple test for basic type arrays | |
|
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2225 if (UseCompressedKlassPointers) { |
| 2446 | 2226 // We don't need decode because we just need to compare |
| 2227 __ lduw(src, oopDesc::klass_offset_in_bytes(), tmp); | |
| 2228 __ lduw(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2229 __ cmp(tmp, tmp2); | |
| 2230 __ br(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2231 } else { | |
| 2232 __ ld_ptr(src, oopDesc::klass_offset_in_bytes(), tmp); | |
| 2233 __ ld_ptr(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2234 __ cmp(tmp, tmp2); | |
| 2235 __ brx(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2236 } | |
| 2237 __ delayed()->nop(); | |
| 2002 | 2238 } else { |
| 2446 | 2239 // For object arrays, if src is a sub class of dst then we can |
| 2240 // safely do the copy. | |
| 2241 address copyfunc_addr = StubRoutines::checkcast_arraycopy(); | |
| 2242 | |
| 2243 Label cont, slow; | |
| 2244 assert_different_registers(tmp, tmp2, G3, G1); | |
| 2245 | |
| 2246 __ load_klass(src, G3); | |
| 2247 __ load_klass(dst, G1); | |
| 2248 | |
| 2249 __ check_klass_subtype_fast_path(G3, G1, tmp, tmp2, &cont, copyfunc_addr == NULL ? stub->entry() : &slow, NULL); | |
| 2250 | |
| 2251 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); | |
| 2252 __ delayed()->nop(); | |
| 2253 | |
| 2254 __ cmp(G3, 0); | |
| 2255 if (copyfunc_addr != NULL) { // use stub if available | |
| 2256 // src is not a sub class of dst so we have to do a | |
| 2257 // per-element check. | |
| 2258 __ br(Assembler::notEqual, false, Assembler::pt, cont); | |
| 2259 __ delayed()->nop(); | |
| 2260 | |
| 2261 __ bind(slow); | |
| 2262 | |
| 2263 int mask = LIR_OpArrayCopy::src_objarray|LIR_OpArrayCopy::dst_objarray; | |
| 2264 if ((flags & mask) != mask) { | |
| 2265 // Check that at least both of them object arrays. | |
| 2266 assert(flags & mask, "one of the two should be known to be an object array"); | |
| 2267 | |
| 2268 if (!(flags & LIR_OpArrayCopy::src_objarray)) { | |
| 2269 __ load_klass(src, tmp); | |
| 2270 } else if (!(flags & LIR_OpArrayCopy::dst_objarray)) { | |
| 2271 __ load_klass(dst, tmp); | |
| 2272 } | |
|
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2273 int lh_offset = in_bytes(Klass::layout_helper_offset()); |
| 2446 | 2274 |
| 2275 __ lduw(tmp, lh_offset, tmp2); | |
| 2276 | |
| 2277 jint objArray_lh = Klass::array_layout_helper(T_OBJECT); | |
| 2278 __ set(objArray_lh, tmp); | |
| 2279 __ cmp(tmp, tmp2); | |
| 2280 __ br(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2281 __ delayed()->nop(); | |
| 2282 } | |
| 2283 | |
| 2284 Register src_ptr = O0; | |
| 2285 Register dst_ptr = O1; | |
| 2286 Register len = O2; | |
| 2287 Register chk_off = O3; | |
| 2288 Register super_k = O4; | |
| 2289 | |
| 2290 __ add(src, arrayOopDesc::base_offset_in_bytes(basic_type), src_ptr); | |
| 2291 if (shift == 0) { | |
| 2292 __ add(src_ptr, src_pos, src_ptr); | |
| 2293 } else { | |
| 2294 __ sll(src_pos, shift, tmp); | |
| 2295 __ add(src_ptr, tmp, src_ptr); | |
| 2296 } | |
| 2297 | |
| 2298 __ add(dst, arrayOopDesc::base_offset_in_bytes(basic_type), dst_ptr); | |
| 2299 if (shift == 0) { | |
| 2300 __ add(dst_ptr, dst_pos, dst_ptr); | |
| 2301 } else { | |
| 2302 __ sll(dst_pos, shift, tmp); | |
| 2303 __ add(dst_ptr, tmp, dst_ptr); | |
| 2304 } | |
| 2305 __ mov(length, len); | |
| 2306 __ load_klass(dst, tmp); | |
| 2307 | |
|
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2308 int ek_offset = in_bytes(objArrayKlass::element_klass_offset()); |
| 2446 | 2309 __ ld_ptr(tmp, ek_offset, super_k); |
| 2310 | |
|
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2311 int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
| 2446 | 2312 __ lduw(super_k, sco_offset, chk_off); |
| 2313 | |
| 2314 __ call_VM_leaf(tmp, copyfunc_addr); | |
| 2315 | |
| 2316 #ifndef PRODUCT | |
| 2317 if (PrintC1Statistics) { | |
| 2318 Label failed; | |
| 3839 | 2319 __ br_notnull_short(O0, Assembler::pn, failed); |
| 2446 | 2320 __ inc_counter((address)&Runtime1::_arraycopy_checkcast_cnt, G1, G3); |
| 2321 __ bind(failed); | |
| 2322 } | |
| 2323 #endif | |
| 2324 | |
| 2325 __ br_null(O0, false, Assembler::pt, *stub->continuation()); | |
| 2326 __ delayed()->xor3(O0, -1, tmp); | |
| 2327 | |
| 2328 #ifndef PRODUCT | |
| 2329 if (PrintC1Statistics) { | |
| 2330 __ inc_counter((address)&Runtime1::_arraycopy_checkcast_attempt_cnt, G1, G3); | |
| 2331 } | |
| 2332 #endif | |
| 2333 | |
| 2334 __ sub(length, tmp, length); | |
| 2335 __ add(src_pos, tmp, src_pos); | |
| 2336 __ br(Assembler::always, false, Assembler::pt, *stub->entry()); | |
| 2337 __ delayed()->add(dst_pos, tmp, dst_pos); | |
| 2338 | |
| 2339 __ bind(cont); | |
| 2340 } else { | |
| 2341 __ br(Assembler::equal, false, Assembler::pn, *stub->entry()); | |
| 2342 __ delayed()->nop(); | |
| 2343 __ bind(cont); | |
| 2344 } | |
| 2002 | 2345 } |
| 0 | 2346 } |
| 2347 | |
| 2348 #ifdef ASSERT | |
| 2349 if (basic_type != T_OBJECT || !(flags & LIR_OpArrayCopy::type_check)) { | |
| 2350 // Sanity check the known type with the incoming class. For the | |
| 2351 // primitive case the types must match exactly with src.klass and | |
| 2352 // dst.klass each exactly matching the default type. For the | |
| 2353 // object array case, if no type check is needed then either the | |
| 2354 // dst type is exactly the expected type and the src type is a | |
| 2355 // subtype which we can't check or src is the same array as dst | |
| 2356 // but not necessarily exactly of type default_type. | |
| 2357 Label known_ok, halt; | |
|
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2358 metadata2reg(op->expected_type()->constant_encoding(), tmp); |
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2359 if (UseCompressedKlassPointers) { |
| 2002 | 2360 // tmp holds the default type. It currently comes uncompressed after the |
| 2361 // load of a constant, so encode it. | |
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2362 __ encode_klass_not_null(tmp); |
| 2002 | 2363 // load the raw value of the dst klass, since we will be comparing |
| 2364 // uncompressed values directly. | |
| 2365 __ lduw(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2366 if (basic_type != T_OBJECT) { | |
| 2367 __ cmp(tmp, tmp2); | |
| 2368 __ br(Assembler::notEqual, false, Assembler::pn, halt); | |
| 2369 // load the raw value of the src klass. | |
| 2370 __ delayed()->lduw(src, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 3839 | 2371 __ cmp_and_br_short(tmp, tmp2, Assembler::equal, Assembler::pn, known_ok); |
| 2002 | 2372 } else { |
| 2373 __ cmp(tmp, tmp2); | |
| 2374 __ br(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2375 __ delayed()->cmp(src, dst); | |
| 2376 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2377 __ delayed()->nop(); | |
| 2378 } | |
| 0 | 2379 } else { |
| 2002 | 2380 __ ld_ptr(dst, oopDesc::klass_offset_in_bytes(), tmp2); |
| 2381 if (basic_type != T_OBJECT) { | |
| 2382 __ cmp(tmp, tmp2); | |
| 2383 __ brx(Assembler::notEqual, false, Assembler::pn, halt); | |
| 2384 __ delayed()->ld_ptr(src, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 3839 | 2385 __ cmp_and_brx_short(tmp, tmp2, Assembler::equal, Assembler::pn, known_ok); |
| 2002 | 2386 } else { |
| 2387 __ cmp(tmp, tmp2); | |
| 2388 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2389 __ delayed()->cmp(src, dst); | |
| 2390 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2391 __ delayed()->nop(); | |
| 2392 } | |
| 0 | 2393 } |
| 2394 __ bind(halt); | |
| 2395 __ stop("incorrect type information in arraycopy"); | |
| 2396 __ bind(known_ok); | |
| 2397 } | |
| 2398 #endif | |
| 2399 | |
| 2446 | 2400 #ifndef PRODUCT |
| 2401 if (PrintC1Statistics) { | |
| 2402 address counter = Runtime1::arraycopy_count_address(basic_type); | |
| 2403 __ inc_counter(counter, G1, G3); | |
| 2404 } | |
| 2405 #endif | |
| 0 | 2406 |
| 2407 Register src_ptr = O0; | |
| 2408 Register dst_ptr = O1; | |
| 2409 Register len = O2; | |
| 2410 | |
| 2411 __ add(src, arrayOopDesc::base_offset_in_bytes(basic_type), src_ptr); | |
| 2412 if (shift == 0) { | |
| 2413 __ add(src_ptr, src_pos, src_ptr); | |
| 2414 } else { | |
| 2415 __ sll(src_pos, shift, tmp); | |
| 2416 __ add(src_ptr, tmp, src_ptr); | |
| 2417 } | |
| 2418 | |
| 2419 __ add(dst, arrayOopDesc::base_offset_in_bytes(basic_type), dst_ptr); | |
| 2420 if (shift == 0) { | |
| 2421 __ add(dst_ptr, dst_pos, dst_ptr); | |
| 2422 } else { | |
| 2423 __ sll(dst_pos, shift, tmp); | |
| 2424 __ add(dst_ptr, tmp, dst_ptr); | |
| 2425 } | |
| 2426 | |
| 2446 | 2427 bool disjoint = (flags & LIR_OpArrayCopy::overlapping) == 0; |
| 2428 bool aligned = (flags & LIR_OpArrayCopy::unaligned) == 0; | |
| 2429 const char *name; | |
| 2430 address entry = StubRoutines::select_arraycopy_function(basic_type, aligned, disjoint, name, false); | |
| 2431 | |
| 2432 // arraycopy stubs takes a length in number of elements, so don't scale it. | |
| 2433 __ mov(length, len); | |
| 2434 __ call_VM_leaf(tmp, entry); | |
| 0 | 2435 |
| 2436 __ bind(*stub->continuation()); | |
| 2437 } | |
| 2438 | |
| 2439 | |
| 2440 void LIR_Assembler::shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp) { | |
| 2441 if (dest->is_single_cpu()) { | |
| 2442 #ifdef _LP64 | |
| 2443 if (left->type() == T_OBJECT) { | |
| 2444 switch (code) { | |
| 2445 case lir_shl: __ sllx (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2446 case lir_shr: __ srax (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2447 case lir_ushr: __ srl (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2448 default: ShouldNotReachHere(); | |
| 2449 } | |
| 2450 } else | |
| 2451 #endif | |
| 2452 switch (code) { | |
| 2453 case lir_shl: __ sll (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2454 case lir_shr: __ sra (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2455 case lir_ushr: __ srl (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2456 default: ShouldNotReachHere(); | |
| 2457 } | |
| 2458 } else { | |
| 2459 #ifdef _LP64 | |
| 2460 switch (code) { | |
| 2461 case lir_shl: __ sllx (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2462 case lir_shr: __ srax (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2463 case lir_ushr: __ srlx (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2464 default: ShouldNotReachHere(); | |
| 2465 } | |
| 2466 #else | |
| 2467 switch (code) { | |
| 2468 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; | |
| 2469 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; | |
| 2470 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; | |
| 2471 default: ShouldNotReachHere(); | |
| 2472 } | |
| 2473 #endif | |
| 2474 } | |
| 2475 } | |
| 2476 | |
| 2477 | |
| 2478 void LIR_Assembler::shift_op(LIR_Code code, LIR_Opr left, jint count, LIR_Opr dest) { | |
| 2479 #ifdef _LP64 | |
| 2480 if (left->type() == T_OBJECT) { | |
| 2481 count = count & 63; // shouldn't shift by more than sizeof(intptr_t) | |
| 2482 Register l = left->as_register(); | |
| 2483 Register d = dest->as_register_lo(); | |
| 2484 switch (code) { | |
| 2485 case lir_shl: __ sllx (l, count, d); break; | |
| 2486 case lir_shr: __ srax (l, count, d); break; | |
| 2487 case lir_ushr: __ srlx (l, count, d); break; | |
| 2488 default: ShouldNotReachHere(); | |
| 2489 } | |
| 2490 return; | |
| 2491 } | |
| 2492 #endif | |
| 2493 | |
| 2494 if (dest->is_single_cpu()) { | |
| 2495 count = count & 0x1F; // Java spec | |
| 2496 switch (code) { | |
| 2497 case lir_shl: __ sll (left->as_register(), count, dest->as_register()); break; | |
| 2498 case lir_shr: __ sra (left->as_register(), count, dest->as_register()); break; | |
| 2499 case lir_ushr: __ srl (left->as_register(), count, dest->as_register()); break; | |
| 2500 default: ShouldNotReachHere(); | |
| 2501 } | |
| 2502 } else if (dest->is_double_cpu()) { | |
| 2503 count = count & 63; // Java spec | |
| 2504 switch (code) { | |
| 2505 case lir_shl: __ sllx (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2506 case lir_shr: __ srax (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2507 case lir_ushr: __ srlx (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2508 default: ShouldNotReachHere(); | |
| 2509 } | |
| 2510 } else { | |
| 2511 ShouldNotReachHere(); | |
| 2512 } | |
| 2513 } | |
| 2514 | |
| 2515 | |
| 2516 void LIR_Assembler::emit_alloc_obj(LIR_OpAllocObj* op) { | |
| 2517 assert(op->tmp1()->as_register() == G1 && | |
| 2518 op->tmp2()->as_register() == G3 && | |
| 2519 op->tmp3()->as_register() == G4 && | |
| 2520 op->obj()->as_register() == O0 && | |
| 2521 op->klass()->as_register() == G5, "must be"); | |
| 2522 if (op->init_check()) { | |
|
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2523 __ ldub(op->klass()->as_register(), |
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2524 in_bytes(InstanceKlass::init_state_offset()), |
| 0 | 2525 op->tmp1()->as_register()); |
| 2526 add_debug_info_for_null_check_here(op->stub()->info()); | |
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2527 __ cmp(op->tmp1()->as_register(), InstanceKlass::fully_initialized); |
| 0 | 2528 __ br(Assembler::notEqual, false, Assembler::pn, *op->stub()->entry()); |
| 2529 __ delayed()->nop(); | |
| 2530 } | |
| 2531 __ allocate_object(op->obj()->as_register(), | |
| 2532 op->tmp1()->as_register(), | |
| 2533 op->tmp2()->as_register(), | |
| 2534 op->tmp3()->as_register(), | |
| 2535 op->header_size(), | |
| 2536 op->object_size(), | |
| 2537 op->klass()->as_register(), | |
| 2538 *op->stub()->entry()); | |
| 2539 __ bind(*op->stub()->continuation()); | |
| 2540 __ verify_oop(op->obj()->as_register()); | |
| 2541 } | |
| 2542 | |
| 2543 | |
| 2544 void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) { | |
| 2545 assert(op->tmp1()->as_register() == G1 && | |
| 2546 op->tmp2()->as_register() == G3 && | |
| 2547 op->tmp3()->as_register() == G4 && | |
| 2548 op->tmp4()->as_register() == O1 && | |
| 2549 op->klass()->as_register() == G5, "must be"); | |
|
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2550 |
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2551 LP64_ONLY( __ signx(op->len()->as_register()); ) |
| 0 | 2552 if (UseSlowPath || |
| 2553 (!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) || | |
| 2554 (!UseFastNewTypeArray && (op->type() != T_OBJECT && op->type() != T_ARRAY))) { | |
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2555 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); |
| 0 | 2556 __ delayed()->nop(); |
| 2557 } else { | |
| 2558 __ allocate_array(op->obj()->as_register(), | |
| 2559 op->len()->as_register(), | |
| 2560 op->tmp1()->as_register(), | |
| 2561 op->tmp2()->as_register(), | |
| 2562 op->tmp3()->as_register(), | |
| 2563 arrayOopDesc::header_size(op->type()), | |
|
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2564 type2aelembytes(op->type()), |
| 0 | 2565 op->klass()->as_register(), |
| 2566 *op->stub()->entry()); | |
| 2567 } | |
| 2568 __ bind(*op->stub()->continuation()); | |
| 2569 } | |
| 2570 | |
| 2571 | |
| 1783 | 2572 void LIR_Assembler::type_profile_helper(Register mdo, int mdo_offset_bias, |
| 2573 ciMethodData *md, ciProfileData *data, | |
| 2574 Register recv, Register tmp1, Label* update_done) { | |
| 2575 uint i; | |
| 2576 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 2577 Label next_test; | |
| 2578 // See if the receiver is receiver[n]. | |
| 2579 Address receiver_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_offset(i)) - | |
| 2580 mdo_offset_bias); | |
| 2581 __ ld_ptr(receiver_addr, tmp1); | |
| 2582 __ verify_oop(tmp1); | |
| 3839 | 2583 __ cmp_and_brx_short(recv, tmp1, Assembler::notEqual, Assembler::pt, next_test); |
| 1783 | 2584 Address data_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_count_offset(i)) - |
| 2585 mdo_offset_bias); | |
| 2586 __ ld_ptr(data_addr, tmp1); | |
| 2587 __ add(tmp1, DataLayout::counter_increment, tmp1); | |
| 2588 __ st_ptr(tmp1, data_addr); | |
| 3839 | 2589 __ ba(*update_done); |
| 1783 | 2590 __ delayed()->nop(); |
| 2591 __ bind(next_test); | |
| 2592 } | |
| 2593 | |
| 2594 // Didn't find receiver; find next empty slot and fill it in | |
| 2595 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 2596 Label next_test; | |
| 2597 Address recv_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_offset(i)) - | |
| 2598 mdo_offset_bias); | |
| 2002 | 2599 __ ld_ptr(recv_addr, tmp1); |
| 3839 | 2600 __ br_notnull_short(tmp1, Assembler::pt, next_test); |
| 1783 | 2601 __ st_ptr(recv, recv_addr); |
| 2602 __ set(DataLayout::counter_increment, tmp1); | |
| 2603 __ st_ptr(tmp1, mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_count_offset(i)) - | |
| 2604 mdo_offset_bias); | |
| 3839 | 2605 __ ba(*update_done); |
| 1783 | 2606 __ delayed()->nop(); |
| 2607 __ bind(next_test); | |
| 2608 } | |
| 2609 } | |
| 2610 | |
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2611 |
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2612 void LIR_Assembler::setup_md_access(ciMethod* method, int bci, |
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2613 ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias) { |
|
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2614 md = method->method_data_or_null(); |
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2615 assert(md != NULL, "Sanity"); |
|
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2616 data = md->bci_to_data(bci); |
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2617 assert(data != NULL, "need data for checkcast"); |
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2618 assert(data->is_ReceiverTypeData(), "need ReceiverTypeData for type check"); |
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2619 if (!Assembler::is_simm13(md->byte_offset_of_slot(data, DataLayout::header_offset()) + data->size_in_bytes())) { |
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2620 // The offset is large so bias the mdo by the base of the slot so |
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2621 // that the ld can use simm13s to reference the slots of the data |
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2622 mdo_offset_bias = md->byte_offset_of_slot(data, DataLayout::header_offset()); |
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2623 } |
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2624 } |
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2625 |
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2626 void LIR_Assembler::emit_typecheck_helper(LIR_OpTypeCheck *op, Label* success, Label* failure, Label* obj_is_null) { |
| 1783 | 2627 // we always need a stub for the failure case. |
| 2628 CodeStub* stub = op->stub(); | |
| 2629 Register obj = op->object()->as_register(); | |
| 2630 Register k_RInfo = op->tmp1()->as_register(); | |
| 2631 Register klass_RInfo = op->tmp2()->as_register(); | |
| 2632 Register dst = op->result_opr()->as_register(); | |
| 2633 Register Rtmp1 = op->tmp3()->as_register(); | |
| 2634 ciKlass* k = op->klass(); | |
| 2635 | |
| 2636 | |
| 2637 if (obj == k_RInfo) { | |
| 2638 k_RInfo = klass_RInfo; | |
| 2639 klass_RInfo = obj; | |
| 2640 } | |
| 2641 | |
| 2642 ciMethodData* md; | |
| 2643 ciProfileData* data; | |
| 2644 int mdo_offset_bias = 0; | |
| 2645 if (op->should_profile()) { | |
| 2646 ciMethod* method = op->profiled_method(); | |
| 2647 assert(method != NULL, "Should have method"); | |
|
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2648 setup_md_access(method, op->profiled_bci(), md, data, mdo_offset_bias); |
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2649 |
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2650 Label not_null; |
| 3839 | 2651 __ br_notnull_short(obj, Assembler::pn, not_null); |
| 1783 | 2652 Register mdo = k_RInfo; |
| 2653 Register data_val = Rtmp1; | |
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2654 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2655 if (mdo_offset_bias > 0) { |
| 2656 __ set(mdo_offset_bias, data_val); | |
| 2657 __ add(mdo, data_val, mdo); | |
| 2658 } | |
| 2659 Address flags_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()) - mdo_offset_bias); | |
| 2660 __ ldub(flags_addr, data_val); | |
| 2661 __ or3(data_val, BitData::null_seen_byte_constant(), data_val); | |
| 2662 __ stb(data_val, flags_addr); | |
| 3839 | 2663 __ ba(*obj_is_null); |
|
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2664 __ delayed()->nop(); |
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2665 __ bind(not_null); |
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2666 } else { |
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2667 __ br_null(obj, false, Assembler::pn, *obj_is_null); |
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2668 __ delayed()->nop(); |
| 1783 | 2669 } |
|
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2670 |
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2671 Label profile_cast_failure, profile_cast_success; |
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2672 Label *failure_target = op->should_profile() ? &profile_cast_failure : failure; |
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2673 Label *success_target = op->should_profile() ? &profile_cast_success : success; |
| 1783 | 2674 |
| 2675 // patching may screw with our temporaries on sparc, | |
| 2676 // so let's do it before loading the class | |
| 2677 if (k->is_loaded()) { | |
|
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2678 metadata2reg(k->constant_encoding(), k_RInfo); |
| 1783 | 2679 } else { |
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2680 klass2reg_with_patching(k_RInfo, op->info_for_patch()); |
| 1783 | 2681 } |
| 2682 assert(obj != k_RInfo, "must be different"); | |
| 2683 | |
| 2684 // get object class | |
| 2685 // not a safepoint as obj null check happens earlier | |
| 2002 | 2686 __ load_klass(obj, klass_RInfo); |
| 1783 | 2687 if (op->fast_check()) { |
| 2688 assert_different_registers(klass_RInfo, k_RInfo); | |
| 2689 __ cmp(k_RInfo, klass_RInfo); | |
| 2690 __ brx(Assembler::notEqual, false, Assembler::pt, *failure_target); | |
| 2691 __ delayed()->nop(); | |
| 2692 } else { | |
| 2693 bool need_slow_path = true; | |
| 2694 if (k->is_loaded()) { | |
|
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2695 if ((int) k->super_check_offset() != in_bytes(Klass::secondary_super_cache_offset())) |
| 1783 | 2696 need_slow_path = false; |
| 2697 // perform the fast part of the checking logic | |
| 2698 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, noreg, | |
|
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2699 (need_slow_path ? success_target : NULL), |
| 1783 | 2700 failure_target, NULL, |
| 2701 RegisterOrConstant(k->super_check_offset())); | |
| 2702 } else { | |
| 2703 // perform the fast part of the checking logic | |
|
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2704 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7, success_target, |
| 1783 | 2705 failure_target, NULL); |
| 2706 } | |
| 2707 if (need_slow_path) { | |
| 2708 // call out-of-line instance of __ check_klass_subtype_slow_path(...): | |
| 2709 assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup"); | |
| 2710 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); | |
| 2711 __ delayed()->nop(); | |
| 2712 __ cmp(G3, 0); | |
| 2713 __ br(Assembler::equal, false, Assembler::pn, *failure_target); | |
| 2714 __ delayed()->nop(); | |
|
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2715 // Fall through to success case |
| 1783 | 2716 } |
| 2717 } | |
| 2718 | |
| 2719 if (op->should_profile()) { | |
| 2720 Register mdo = klass_RInfo, recv = k_RInfo, tmp1 = Rtmp1; | |
| 2721 assert_different_registers(obj, mdo, recv, tmp1); | |
|
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2722 __ bind(profile_cast_success); |
|
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2723 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2724 if (mdo_offset_bias > 0) { |
| 2725 __ set(mdo_offset_bias, tmp1); | |
| 2726 __ add(mdo, tmp1, mdo); | |
| 2727 } | |
| 2002 | 2728 __ load_klass(obj, recv); |
|
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2729 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, success); |
| 1783 | 2730 // Jump over the failure case |
| 3839 | 2731 __ ba(*success); |
| 1783 | 2732 __ delayed()->nop(); |
| 2733 // Cast failure case | |
| 2734 __ bind(profile_cast_failure); | |
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2735 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2736 if (mdo_offset_bias > 0) { |
| 2737 __ set(mdo_offset_bias, tmp1); | |
| 2738 __ add(mdo, tmp1, mdo); | |
| 2739 } | |
| 2740 Address data_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); | |
| 2741 __ ld_ptr(data_addr, tmp1); | |
| 2742 __ sub(tmp1, DataLayout::counter_increment, tmp1); | |
| 2743 __ st_ptr(tmp1, data_addr); | |
| 3839 | 2744 __ ba(*failure); |
| 1783 | 2745 __ delayed()->nop(); |
| 2746 } | |
| 3839 | 2747 __ ba(*success); |
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2748 __ delayed()->nop(); |
| 1783 | 2749 } |
| 2750 | |
| 0 | 2751 void LIR_Assembler::emit_opTypeCheck(LIR_OpTypeCheck* op) { |
| 2752 LIR_Code code = op->code(); | |
| 2753 if (code == lir_store_check) { | |
| 2754 Register value = op->object()->as_register(); | |
| 2755 Register array = op->array()->as_register(); | |
| 2756 Register k_RInfo = op->tmp1()->as_register(); | |
| 2757 Register klass_RInfo = op->tmp2()->as_register(); | |
| 2758 Register Rtmp1 = op->tmp3()->as_register(); | |
| 2759 | |
| 2760 __ verify_oop(value); | |
| 2761 CodeStub* stub = op->stub(); | |
|
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2762 // check if it needs to be profiled |
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2763 ciMethodData* md; |
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2764 ciProfileData* data; |
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2765 int mdo_offset_bias = 0; |
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2766 if (op->should_profile()) { |
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2767 ciMethod* method = op->profiled_method(); |
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2768 assert(method != NULL, "Should have method"); |
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2769 setup_md_access(method, op->profiled_bci(), md, data, mdo_offset_bias); |
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2770 } |
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2771 Label profile_cast_success, profile_cast_failure, done; |
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2772 Label *success_target = op->should_profile() ? &profile_cast_success : &done; |
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2773 Label *failure_target = op->should_profile() ? &profile_cast_failure : stub->entry(); |
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2774 |
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2775 if (op->should_profile()) { |
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2776 Label not_null; |
| 3839 | 2777 __ br_notnull_short(value, Assembler::pn, not_null); |
|
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2778 Register mdo = k_RInfo; |
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2779 Register data_val = Rtmp1; |
|
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2780 metadata2reg(md->constant_encoding(), mdo); |
|
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2781 if (mdo_offset_bias > 0) { |
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2782 __ set(mdo_offset_bias, data_val); |
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2783 __ add(mdo, data_val, mdo); |
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2784 } |
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2785 Address flags_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()) - mdo_offset_bias); |
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2786 __ ldub(flags_addr, data_val); |
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2787 __ or3(data_val, BitData::null_seen_byte_constant(), data_val); |
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2788 __ stb(data_val, flags_addr); |
| 3839 | 2789 __ ba_short(done); |
|
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2790 __ bind(not_null); |
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2791 } else { |
| 3839 | 2792 __ br_null_short(value, Assembler::pn, done); |
|
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2793 } |
| 2002 | 2794 add_debug_info_for_null_check_here(op->info_for_exception()); |
| 2795 __ load_klass(array, k_RInfo); | |
| 2796 __ load_klass(value, klass_RInfo); | |
| 0 | 2797 |
| 2798 // get instance klass | |
|
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2799 __ ld_ptr(Address(k_RInfo, objArrayKlass::element_klass_offset()), k_RInfo); |
|
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|
2800 // perform the fast part of the checking logic |
|
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2801 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7, success_target, failure_target, NULL); |
|
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2802 |
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2803 // call out-of-line instance of __ check_klass_subtype_slow_path(...): |
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2804 assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup"); |
| 0 | 2805 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); |
| 2806 __ delayed()->nop(); | |
| 2807 __ cmp(G3, 0); | |
|
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2808 __ br(Assembler::equal, false, Assembler::pn, *failure_target); |
| 0 | 2809 __ delayed()->nop(); |
|
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|
2810 // fall through to the success case |
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2811 |
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2812 if (op->should_profile()) { |
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|
2813 Register mdo = klass_RInfo, recv = k_RInfo, tmp1 = Rtmp1; |
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|
2814 assert_different_registers(value, mdo, recv, tmp1); |
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|
2815 __ bind(profile_cast_success); |
|
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2816 metadata2reg(md->constant_encoding(), mdo); |
|
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2817 if (mdo_offset_bias > 0) { |
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2818 __ set(mdo_offset_bias, tmp1); |
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2819 __ add(mdo, tmp1, mdo); |
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2820 } |
| 2002 | 2821 __ load_klass(value, recv); |
|
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2822 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, &done); |
| 3839 | 2823 __ ba_short(done); |
|
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2824 // Cast failure case |
|
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|
2825 __ bind(profile_cast_failure); |
|
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2826 metadata2reg(md->constant_encoding(), mdo); |
|
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2827 if (mdo_offset_bias > 0) { |
|
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2828 __ set(mdo_offset_bias, tmp1); |
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2829 __ add(mdo, tmp1, mdo); |
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2830 } |
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|
2831 Address data_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); |
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2832 __ ld_ptr(data_addr, tmp1); |
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2833 __ sub(tmp1, DataLayout::counter_increment, tmp1); |
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2834 __ st_ptr(tmp1, data_addr); |
| 3839 | 2835 __ ba(*stub->entry()); |
|
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2836 __ delayed()->nop(); |
|
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|
2837 } |
| 0 | 2838 __ bind(done); |
|
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2839 } else if (code == lir_checkcast) { |
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2840 Register obj = op->object()->as_register(); |
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2841 Register dst = op->result_opr()->as_register(); |
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2842 Label success; |
|
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2843 emit_typecheck_helper(op, &success, op->stub()->entry(), &success); |
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2844 __ bind(success); |
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|
2845 __ mov(obj, dst); |
| 0 | 2846 } else if (code == lir_instanceof) { |
| 2847 Register obj = op->object()->as_register(); | |
| 2848 Register dst = op->result_opr()->as_register(); | |
|
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2849 Label success, failure, done; |
|
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|
2850 emit_typecheck_helper(op, &success, &failure, &failure); |
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2851 __ bind(failure); |
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|
2852 __ set(0, dst); |
| 3839 | 2853 __ ba_short(done); |
|
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|
2854 __ bind(success); |
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|
2855 __ set(1, dst); |
|
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|
2856 __ bind(done); |
| 0 | 2857 } else { |
| 2858 ShouldNotReachHere(); | |
| 2859 } | |
| 2860 | |
| 2861 } | |
| 2862 | |
| 2863 | |
| 2864 void LIR_Assembler::emit_compare_and_swap(LIR_OpCompareAndSwap* op) { | |
| 2865 if (op->code() == lir_cas_long) { | |
| 2866 assert(VM_Version::supports_cx8(), "wrong machine"); | |
| 2867 Register addr = op->addr()->as_pointer_register(); | |
| 2868 Register cmp_value_lo = op->cmp_value()->as_register_lo(); | |
| 2869 Register cmp_value_hi = op->cmp_value()->as_register_hi(); | |
| 2870 Register new_value_lo = op->new_value()->as_register_lo(); | |
| 2871 Register new_value_hi = op->new_value()->as_register_hi(); | |
| 2872 Register t1 = op->tmp1()->as_register(); | |
| 2873 Register t2 = op->tmp2()->as_register(); | |
| 2874 #ifdef _LP64 | |
| 2875 __ mov(cmp_value_lo, t1); | |
| 2876 __ mov(new_value_lo, t2); | |
|
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2877 // perform the compare and swap operation |
|
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2878 __ casx(addr, t1, t2); |
|
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2879 // generate condition code - if the swap succeeded, t2 ("new value" reg) was |
|
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2880 // overwritten with the original value in "addr" and will be equal to t1. |
|
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2881 __ cmp(t1, t2); |
| 0 | 2882 #else |
| 2883 // move high and low halves of long values into single registers | |
| 2884 __ sllx(cmp_value_hi, 32, t1); // shift high half into temp reg | |
| 2885 __ srl(cmp_value_lo, 0, cmp_value_lo); // clear upper 32 bits of low half | |
| 2886 __ or3(t1, cmp_value_lo, t1); // t1 holds 64-bit compare value | |
| 2887 __ sllx(new_value_hi, 32, t2); | |
| 2888 __ srl(new_value_lo, 0, new_value_lo); | |
| 2889 __ or3(t2, new_value_lo, t2); // t2 holds 64-bit value to swap | |
| 2890 // perform the compare and swap operation | |
| 2891 __ casx(addr, t1, t2); | |
| 2892 // generate condition code - if the swap succeeded, t2 ("new value" reg) was | |
| 2893 // overwritten with the original value in "addr" and will be equal to t1. | |
|
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2894 // Produce icc flag for 32bit. |
|
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2895 __ sub(t1, t2, t2); |
|
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2896 __ srlx(t2, 32, t1); |
|
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2897 __ orcc(t2, t1, G0); |
|
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2898 #endif |
| 0 | 2899 } else if (op->code() == lir_cas_int || op->code() == lir_cas_obj) { |
| 2900 Register addr = op->addr()->as_pointer_register(); | |
| 2901 Register cmp_value = op->cmp_value()->as_register(); | |
| 2902 Register new_value = op->new_value()->as_register(); | |
| 2903 Register t1 = op->tmp1()->as_register(); | |
| 2904 Register t2 = op->tmp2()->as_register(); | |
| 2905 __ mov(cmp_value, t1); | |
| 2906 __ mov(new_value, t2); | |
| 2907 if (op->code() == lir_cas_obj) { | |
| 2002 | 2908 if (UseCompressedOops) { |
| 2909 __ encode_heap_oop(t1); | |
| 2910 __ encode_heap_oop(t2); | |
| 0 | 2911 __ cas(addr, t1, t2); |
| 2002 | 2912 } else { |
| 2010 | 2913 __ cas_ptr(addr, t1, t2); |
| 0 | 2914 } |
| 2002 | 2915 } else { |
| 2916 __ cas(addr, t1, t2); | |
| 2917 } | |
| 0 | 2918 __ cmp(t1, t2); |
| 2919 } else { | |
| 2920 Unimplemented(); | |
| 2921 } | |
| 2922 } | |
| 2923 | |
| 2924 void LIR_Assembler::set_24bit_FPU() { | |
| 2925 Unimplemented(); | |
| 2926 } | |
| 2927 | |
| 2928 | |
| 2929 void LIR_Assembler::reset_FPU() { | |
| 2930 Unimplemented(); | |
| 2931 } | |
| 2932 | |
| 2933 | |
| 2934 void LIR_Assembler::breakpoint() { | |
| 2935 __ breakpoint_trap(); | |
| 2936 } | |
| 2937 | |
| 2938 | |
| 2939 void LIR_Assembler::push(LIR_Opr opr) { | |
| 2940 Unimplemented(); | |
| 2941 } | |
| 2942 | |
| 2943 | |
| 2944 void LIR_Assembler::pop(LIR_Opr opr) { | |
| 2945 Unimplemented(); | |
| 2946 } | |
| 2947 | |
| 2948 | |
| 2949 void LIR_Assembler::monitor_address(int monitor_no, LIR_Opr dst_opr) { | |
| 2950 Address mon_addr = frame_map()->address_for_monitor_lock(monitor_no); | |
| 2951 Register dst = dst_opr->as_register(); | |
| 2952 Register reg = mon_addr.base(); | |
| 2953 int offset = mon_addr.disp(); | |
| 2954 // compute pointer to BasicLock | |
| 2955 if (mon_addr.is_simm13()) { | |
| 2956 __ add(reg, offset, dst); | |
| 2957 } else { | |
| 2958 __ set(offset, dst); | |
| 2959 __ add(dst, reg, dst); | |
| 2960 } | |
| 2961 } | |
| 2962 | |
| 2963 | |
| 2964 void LIR_Assembler::emit_lock(LIR_OpLock* op) { | |
| 2965 Register obj = op->obj_opr()->as_register(); | |
| 2966 Register hdr = op->hdr_opr()->as_register(); | |
| 2967 Register lock = op->lock_opr()->as_register(); | |
| 2968 | |
| 2969 // obj may not be an oop | |
| 2970 if (op->code() == lir_lock) { | |
| 2971 MonitorEnterStub* stub = (MonitorEnterStub*)op->stub(); | |
| 2972 if (UseFastLocking) { | |
| 2973 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 2974 // add debug info for NullPointerException only if one is possible | |
| 2975 if (op->info() != NULL) { | |
| 2976 add_debug_info_for_null_check_here(op->info()); | |
| 2977 } | |
| 2978 __ lock_object(hdr, obj, lock, op->scratch_opr()->as_register(), *op->stub()->entry()); | |
| 2979 } else { | |
| 2980 // always do slow locking | |
| 2981 // note: the slow locking code could be inlined here, however if we use | |
| 2982 // slow locking, speed doesn't matter anyway and this solution is | |
| 2983 // simpler and requires less duplicated code - additionally, the | |
| 2984 // slow locking code is the same in either case which simplifies | |
| 2985 // debugging | |
| 2986 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); | |
| 2987 __ delayed()->nop(); | |
| 2988 } | |
| 2989 } else { | |
| 2990 assert (op->code() == lir_unlock, "Invalid code, expected lir_unlock"); | |
| 2991 if (UseFastLocking) { | |
| 2992 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 2993 __ unlock_object(hdr, obj, lock, *op->stub()->entry()); | |
| 2994 } else { | |
| 2995 // always do slow unlocking | |
| 2996 // note: the slow unlocking code could be inlined here, however if we use | |
| 2997 // slow unlocking, speed doesn't matter anyway and this solution is | |
| 2998 // simpler and requires less duplicated code - additionally, the | |
| 2999 // slow unlocking code is the same in either case which simplifies | |
| 3000 // debugging | |
| 3001 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); | |
| 3002 __ delayed()->nop(); | |
| 3003 } | |
| 3004 } | |
| 3005 __ bind(*op->stub()->continuation()); | |
| 3006 } | |
| 3007 | |
| 3008 | |
| 3009 void LIR_Assembler::emit_profile_call(LIR_OpProfileCall* op) { | |
| 3010 ciMethod* method = op->profiled_method(); | |
| 3011 int bci = op->profiled_bci(); | |
|
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|
3012 ciMethod* callee = op->profiled_callee(); |
| 0 | 3013 |
| 3014 // Update counter for all call types | |
|
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diff
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|
3015 ciMethodData* md = method->method_data_or_null(); |
|
5ddfcf4b079e
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2002
diff
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|
3016 assert(md != NULL, "Sanity"); |
| 0 | 3017 ciProfileData* data = md->bci_to_data(bci); |
| 3018 assert(data->is_CounterData(), "need CounterData for calls"); | |
| 3019 assert(op->mdo()->is_single_cpu(), "mdo must be allocated"); | |
| 1783 | 3020 Register mdo = op->mdo()->as_register(); |
| 3021 #ifdef _LP64 | |
| 3022 assert(op->tmp1()->is_double_cpu(), "tmp1 must be allocated"); | |
| 3023 Register tmp1 = op->tmp1()->as_register_lo(); | |
| 3024 #else | |
| 0 | 3025 assert(op->tmp1()->is_single_cpu(), "tmp1 must be allocated"); |
| 3026 Register tmp1 = op->tmp1()->as_register(); | |
| 1783 | 3027 #endif |
|
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6266
diff
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|
3028 metadata2reg(md->constant_encoding(), mdo); |
| 0 | 3029 int mdo_offset_bias = 0; |
| 3030 if (!Assembler::is_simm13(md->byte_offset_of_slot(data, CounterData::count_offset()) + | |
| 3031 data->size_in_bytes())) { | |
| 3032 // The offset is large so bias the mdo by the base of the slot so | |
| 3033 // that the ld can use simm13s to reference the slots of the data | |
| 3034 mdo_offset_bias = md->byte_offset_of_slot(data, CounterData::count_offset()); | |
| 3035 __ set(mdo_offset_bias, O7); | |
| 3036 __ add(mdo, O7, mdo); | |
| 3037 } | |
| 3038 | |
| 727 | 3039 Address counter_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); |
| 0 | 3040 Bytecodes::Code bc = method->java_code_at_bci(bci); |
|
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6057
diff
changeset
|
3041 const bool callee_is_static = callee->is_loaded() && callee->is_static(); |
| 0 | 3042 // Perform additional virtual call profiling for invokevirtual and |
| 3043 // invokeinterface bytecodes | |
| 3044 if ((bc == Bytecodes::_invokevirtual || bc == Bytecodes::_invokeinterface) && | |
|
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6057
diff
changeset
|
3045 !callee_is_static && // required for optimized MH invokes |
| 1783 | 3046 C1ProfileVirtualCalls) { |
| 0 | 3047 assert(op->recv()->is_single_cpu(), "recv must be allocated"); |
| 3048 Register recv = op->recv()->as_register(); | |
| 3049 assert_different_registers(mdo, tmp1, recv); | |
| 3050 assert(data->is_VirtualCallData(), "need VirtualCallData for virtual calls"); | |
| 3051 ciKlass* known_klass = op->known_holder(); | |
| 1783 | 3052 if (C1OptimizeVirtualCallProfiling && known_klass != NULL) { |
| 0 | 3053 // We know the type that will be seen at this call site; we can |
|
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6266
diff
changeset
|
3054 // statically update the MethodData* rather than needing to do |
| 0 | 3055 // dynamic tests on the receiver type |
| 3056 | |
| 3057 // NOTE: we should probably put a lock around this search to | |
| 3058 // avoid collisions by concurrent compilations | |
| 3059 ciVirtualCallData* vc_data = (ciVirtualCallData*) data; | |
| 3060 uint i; | |
| 3061 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 3062 ciKlass* receiver = vc_data->receiver(i); | |
| 3063 if (known_klass->equals(receiver)) { | |
| 727 | 3064 Address data_addr(mdo, md->byte_offset_of_slot(data, |
| 3065 VirtualCallData::receiver_count_offset(i)) - | |
| 0 | 3066 mdo_offset_bias); |
| 1783 | 3067 __ ld_ptr(data_addr, tmp1); |
| 0 | 3068 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3069 __ st_ptr(tmp1, data_addr); |
| 0 | 3070 return; |
| 3071 } | |
| 3072 } | |
| 3073 | |
| 3074 // Receiver type not found in profile data; select an empty slot | |
| 3075 | |
| 3076 // Note that this is less efficient than it should be because it | |
| 3077 // always does a write to the receiver part of the | |
| 3078 // VirtualCallData rather than just the first time | |
| 3079 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 3080 ciKlass* receiver = vc_data->receiver(i); | |
| 3081 if (receiver == NULL) { | |
| 727 | 3082 Address recv_addr(mdo, md->byte_offset_of_slot(data, VirtualCallData::receiver_offset(i)) - |
| 0 | 3083 mdo_offset_bias); |
|
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6266
diff
changeset
|
3084 metadata2reg(known_klass->constant_encoding(), tmp1); |
| 0 | 3085 __ st_ptr(tmp1, recv_addr); |
| 727 | 3086 Address data_addr(mdo, md->byte_offset_of_slot(data, VirtualCallData::receiver_count_offset(i)) - |
| 0 | 3087 mdo_offset_bias); |
| 1783 | 3088 __ ld_ptr(data_addr, tmp1); |
| 0 | 3089 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3090 __ st_ptr(tmp1, data_addr); |
| 0 | 3091 return; |
| 3092 } | |
| 3093 } | |
| 3094 } else { | |
| 2002 | 3095 __ load_klass(recv, recv); |
| 0 | 3096 Label update_done; |
| 1783 | 3097 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, &update_done); |
|
1251
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kvn
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1204
diff
changeset
|
3098 // Receiver did not match any saved receiver and there is no empty row for it. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1204
diff
changeset
|
3099 // Increment total counter to indicate polymorphic case. |
| 1783 | 3100 __ ld_ptr(counter_addr, tmp1); |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1204
diff
changeset
|
3101 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3102 __ st_ptr(tmp1, counter_addr); |
| 0 | 3103 |
| 3104 __ bind(update_done); | |
| 3105 } | |
|
1251
576e77447e3c
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1204
diff
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|
3106 } else { |
|
576e77447e3c
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kvn
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1204
diff
changeset
|
3107 // Static call |
| 1783 | 3108 __ ld_ptr(counter_addr, tmp1); |
|
1251
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kvn
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1204
diff
changeset
|
3109 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3110 __ st_ptr(tmp1, counter_addr); |
| 0 | 3111 } |
| 3112 } | |
| 3113 | |
| 3114 void LIR_Assembler::align_backward_branch_target() { | |
| 1365 | 3115 __ align(OptoLoopAlignment); |
| 0 | 3116 } |
| 3117 | |
| 3118 | |
| 3119 void LIR_Assembler::emit_delay(LIR_OpDelay* op) { | |
| 3120 // make sure we are expecting a delay | |
| 3121 // this has the side effect of clearing the delay state | |
| 3122 // so we can use _masm instead of _masm->delayed() to do the | |
| 3123 // code generation. | |
| 3124 __ delayed(); | |
| 3125 | |
| 3126 // make sure we only emit one instruction | |
| 3127 int offset = code_offset(); | |
| 3128 op->delay_op()->emit_code(this); | |
| 3129 #ifdef ASSERT | |
| 3130 if (code_offset() - offset != NativeInstruction::nop_instruction_size) { | |
| 3131 op->delay_op()->print(); | |
| 3132 } | |
| 3133 assert(code_offset() - offset == NativeInstruction::nop_instruction_size, | |
| 3134 "only one instruction can go in a delay slot"); | |
| 3135 #endif | |
| 3136 | |
| 3137 // we may also be emitting the call info for the instruction | |
| 3138 // which we are the delay slot of. | |
| 1564 | 3139 CodeEmitInfo* call_info = op->call_info(); |
| 0 | 3140 if (call_info) { |
| 3141 add_call_info(code_offset(), call_info); | |
| 3142 } | |
| 3143 | |
| 3144 if (VerifyStackAtCalls) { | |
| 3145 _masm->sub(FP, SP, O7); | |
| 3146 _masm->cmp(O7, initial_frame_size_in_bytes()); | |
| 3147 _masm->trap(Assembler::notEqual, Assembler::ptr_cc, G0, ST_RESERVED_FOR_USER_0+2 ); | |
| 3148 } | |
| 3149 } | |
| 3150 | |
| 3151 | |
| 3152 void LIR_Assembler::negate(LIR_Opr left, LIR_Opr dest) { | |
| 3153 assert(left->is_register(), "can only handle registers"); | |
| 3154 | |
| 3155 if (left->is_single_cpu()) { | |
| 3156 __ neg(left->as_register(), dest->as_register()); | |
| 3157 } else if (left->is_single_fpu()) { | |
| 3158 __ fneg(FloatRegisterImpl::S, left->as_float_reg(), dest->as_float_reg()); | |
| 3159 } else if (left->is_double_fpu()) { | |
| 3160 __ fneg(FloatRegisterImpl::D, left->as_double_reg(), dest->as_double_reg()); | |
| 3161 } else { | |
| 3162 assert (left->is_double_cpu(), "Must be a long"); | |
| 3163 Register Rlow = left->as_register_lo(); | |
| 3164 Register Rhi = left->as_register_hi(); | |
| 3165 #ifdef _LP64 | |
| 3166 __ sub(G0, Rlow, dest->as_register_lo()); | |
| 3167 #else | |
| 3168 __ subcc(G0, Rlow, dest->as_register_lo()); | |
| 3169 __ subc (G0, Rhi, dest->as_register_hi()); | |
| 3170 #endif | |
| 3171 } | |
| 3172 } | |
| 3173 | |
| 3174 | |
| 3175 void LIR_Assembler::fxch(int i) { | |
| 3176 Unimplemented(); | |
| 3177 } | |
| 3178 | |
| 3179 void LIR_Assembler::fld(int i) { | |
| 3180 Unimplemented(); | |
| 3181 } | |
| 3182 | |
| 3183 void LIR_Assembler::ffree(int i) { | |
| 3184 Unimplemented(); | |
| 3185 } | |
| 3186 | |
| 3187 void LIR_Assembler::rt_call(LIR_Opr result, address dest, | |
| 3188 const LIR_OprList* args, LIR_Opr tmp, CodeEmitInfo* info) { | |
| 3189 | |
| 3190 // if tmp is invalid, then the function being called doesn't destroy the thread | |
| 3191 if (tmp->is_valid()) { | |
| 3192 __ save_thread(tmp->as_register()); | |
| 3193 } | |
| 3194 __ call(dest, relocInfo::runtime_call_type); | |
| 3195 __ delayed()->nop(); | |
| 3196 if (info != NULL) { | |
| 3197 add_call_info_here(info); | |
| 3198 } | |
| 3199 if (tmp->is_valid()) { | |
| 3200 __ restore_thread(tmp->as_register()); | |
| 3201 } | |
| 3202 | |
| 3203 #ifdef ASSERT | |
| 3204 __ verify_thread(); | |
| 3205 #endif // ASSERT | |
| 3206 } | |
| 3207 | |
| 3208 | |
| 3209 void LIR_Assembler::volatile_move_op(LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info) { | |
| 3210 #ifdef _LP64 | |
| 3211 ShouldNotReachHere(); | |
| 3212 #endif | |
| 3213 | |
| 3214 NEEDS_CLEANUP; | |
| 3215 if (type == T_LONG) { | |
| 3216 LIR_Address* mem_addr = dest->is_address() ? dest->as_address_ptr() : src->as_address_ptr(); | |
| 3217 | |
| 3218 // (extended to allow indexed as well as constant displaced for JSR-166) | |
| 3219 Register idx = noreg; // contains either constant offset or index | |
| 3220 | |
| 3221 int disp = mem_addr->disp(); | |
| 3222 if (mem_addr->index() == LIR_OprFact::illegalOpr) { | |
| 3223 if (!Assembler::is_simm13(disp)) { | |
| 3224 idx = O7; | |
| 3225 __ set(disp, idx); | |
| 3226 } | |
| 3227 } else { | |
| 3228 assert(disp == 0, "not both indexed and disp"); | |
| 3229 idx = mem_addr->index()->as_register(); | |
| 3230 } | |
| 3231 | |
| 3232 int null_check_offset = -1; | |
| 3233 | |
| 3234 Register base = mem_addr->base()->as_register(); | |
| 3235 if (src->is_register() && dest->is_address()) { | |
| 3236 // G4 is high half, G5 is low half | |
| 3237 if (VM_Version::v9_instructions_work()) { | |
| 3238 // clear the top bits of G5, and scale up G4 | |
| 3239 __ srl (src->as_register_lo(), 0, G5); | |
| 3240 __ sllx(src->as_register_hi(), 32, G4); | |
| 3241 // combine the two halves into the 64 bits of G4 | |
| 3242 __ or3(G4, G5, G4); | |
| 3243 null_check_offset = __ offset(); | |
| 3244 if (idx == noreg) { | |
| 3245 __ stx(G4, base, disp); | |
| 3246 } else { | |
| 3247 __ stx(G4, base, idx); | |
| 3248 } | |
| 3249 } else { | |
| 3250 __ mov (src->as_register_hi(), G4); | |
| 3251 __ mov (src->as_register_lo(), G5); | |
| 3252 null_check_offset = __ offset(); | |
| 3253 if (idx == noreg) { | |
| 3254 __ std(G4, base, disp); | |
| 3255 } else { | |
| 3256 __ std(G4, base, idx); | |
| 3257 } | |
| 3258 } | |
| 3259 } else if (src->is_address() && dest->is_register()) { | |
| 3260 null_check_offset = __ offset(); | |
| 3261 if (VM_Version::v9_instructions_work()) { | |
| 3262 if (idx == noreg) { | |
| 3263 __ ldx(base, disp, G5); | |
| 3264 } else { | |
| 3265 __ ldx(base, idx, G5); | |
| 3266 } | |
| 3267 __ srax(G5, 32, dest->as_register_hi()); // fetch the high half into hi | |
| 3268 __ mov (G5, dest->as_register_lo()); // copy low half into lo | |
| 3269 } else { | |
| 3270 if (idx == noreg) { | |
| 3271 __ ldd(base, disp, G4); | |
| 3272 } else { | |
| 3273 __ ldd(base, idx, G4); | |
| 3274 } | |
| 3275 // G4 is high half, G5 is low half | |
| 3276 __ mov (G4, dest->as_register_hi()); | |
| 3277 __ mov (G5, dest->as_register_lo()); | |
| 3278 } | |
| 3279 } else { | |
| 3280 Unimplemented(); | |
| 3281 } | |
| 3282 if (info != NULL) { | |
| 3283 add_debug_info_for_null_check(null_check_offset, info); | |
| 3284 } | |
| 3285 | |
| 3286 } else { | |
| 3287 // use normal move for all other volatiles since they don't need | |
| 3288 // special handling to remain atomic. | |
| 2002 | 3289 move_op(src, dest, type, lir_patch_none, info, false, false, false); |
| 0 | 3290 } |
| 3291 } | |
| 3292 | |
| 3293 void LIR_Assembler::membar() { | |
| 3294 // only StoreLoad membars are ever explicitly needed on sparcs in TSO mode | |
| 3295 __ membar( Assembler::Membar_mask_bits(Assembler::StoreLoad) ); | |
| 3296 } | |
| 3297 | |
| 3298 void LIR_Assembler::membar_acquire() { | |
| 3299 // no-op on TSO | |
| 3300 } | |
| 3301 | |
| 3302 void LIR_Assembler::membar_release() { | |
| 3303 // no-op on TSO | |
| 3304 } | |
| 3305 | |
|
4966
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3306 void LIR_Assembler::membar_loadload() { |
|
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3307 // no-op |
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3308 //__ membar(Assembler::Membar_mask_bits(Assembler::loadload)); |
|
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3309 } |
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3310 |
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3311 void LIR_Assembler::membar_storestore() { |
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3312 // no-op |
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3313 //__ membar(Assembler::Membar_mask_bits(Assembler::storestore)); |
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3314 } |
|
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3315 |
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3316 void LIR_Assembler::membar_loadstore() { |
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3317 // no-op |
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3318 //__ membar(Assembler::Membar_mask_bits(Assembler::loadstore)); |
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3319 } |
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3320 |
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3321 void LIR_Assembler::membar_storeload() { |
|
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3322 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); |
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3323 } |
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3324 |
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3325 |
| 1783 | 3326 // Pack two sequential registers containing 32 bit values |
| 0 | 3327 // into a single 64 bit register. |
| 1783 | 3328 // src and src->successor() are packed into dst |
| 3329 // src and dst may be the same register. | |
| 3330 // Note: src is destroyed | |
| 3331 void LIR_Assembler::pack64(LIR_Opr src, LIR_Opr dst) { | |
| 3332 Register rs = src->as_register(); | |
| 3333 Register rd = dst->as_register_lo(); | |
| 0 | 3334 __ sllx(rs, 32, rs); |
| 3335 __ srl(rs->successor(), 0, rs->successor()); | |
| 3336 __ or3(rs, rs->successor(), rd); | |
| 3337 } | |
| 3338 | |
| 1783 | 3339 // Unpack a 64 bit value in a register into |
| 0 | 3340 // two sequential registers. |
| 1783 | 3341 // src is unpacked into dst and dst->successor() |
| 3342 void LIR_Assembler::unpack64(LIR_Opr src, LIR_Opr dst) { | |
| 3343 Register rs = src->as_register_lo(); | |
| 3344 Register rd = dst->as_register_hi(); | |
| 3345 assert_different_registers(rs, rd, rd->successor()); | |
| 3346 __ srlx(rs, 32, rd); | |
| 3347 __ srl (rs, 0, rd->successor()); | |
| 0 | 3348 } |
| 3349 | |
| 3350 | |
| 3351 void LIR_Assembler::leal(LIR_Opr addr_opr, LIR_Opr dest) { | |
| 3352 LIR_Address* addr = addr_opr->as_address_ptr(); | |
| 3353 assert(addr->index()->is_illegal() && addr->scale() == LIR_Address::times_1 && Assembler::is_simm13(addr->disp()), "can't handle complex addresses yet"); | |
| 1783 | 3354 |
| 3355 __ add(addr->base()->as_pointer_register(), addr->disp(), dest->as_pointer_register()); | |
| 0 | 3356 } |
| 3357 | |
| 3358 | |
| 3359 void LIR_Assembler::get_thread(LIR_Opr result_reg) { | |
| 3360 assert(result_reg->is_register(), "check"); | |
| 3361 __ mov(G2_thread, result_reg->as_register()); | |
| 3362 } | |
| 3363 | |
| 3364 | |
| 3365 void LIR_Assembler::peephole(LIR_List* lir) { | |
| 3366 LIR_OpList* inst = lir->instructions_list(); | |
| 3367 for (int i = 0; i < inst->length(); i++) { | |
| 3368 LIR_Op* op = inst->at(i); | |
| 3369 switch (op->code()) { | |
| 3370 case lir_cond_float_branch: | |
| 3371 case lir_branch: { | |
| 3372 LIR_OpBranch* branch = op->as_OpBranch(); | |
| 3373 assert(branch->info() == NULL, "shouldn't be state on branches anymore"); | |
| 3374 LIR_Op* delay_op = NULL; | |
| 3375 // we'd like to be able to pull following instructions into | |
| 3376 // this slot but we don't know enough to do it safely yet so | |
| 3377 // only optimize block to block control flow. | |
| 3378 if (LIRFillDelaySlots && branch->block()) { | |
| 3379 LIR_Op* prev = inst->at(i - 1); | |
| 3380 if (prev && LIR_Assembler::is_single_instruction(prev) && prev->info() == NULL) { | |
| 3381 // swap previous instruction into delay slot | |
| 3382 inst->at_put(i - 1, op); | |
| 3383 inst->at_put(i, new LIR_OpDelay(prev, op->info())); | |
| 3384 #ifndef PRODUCT | |
| 3385 if (LIRTracePeephole) { | |
| 3386 tty->print_cr("delayed"); | |
| 3387 inst->at(i - 1)->print(); | |
| 3388 inst->at(i)->print(); | |
| 1564 | 3389 tty->cr(); |
| 0 | 3390 } |
| 3391 #endif | |
| 3392 continue; | |
| 3393 } | |
| 3394 } | |
| 3395 | |
| 3396 if (!delay_op) { | |
| 3397 delay_op = new LIR_OpDelay(new LIR_Op0(lir_nop), NULL); | |
| 3398 } | |
| 3399 inst->insert_before(i + 1, delay_op); | |
| 3400 break; | |
| 3401 } | |
| 3402 case lir_static_call: | |
| 3403 case lir_virtual_call: | |
| 3404 case lir_icvirtual_call: | |
| 1564 | 3405 case lir_optvirtual_call: |
| 3406 case lir_dynamic_call: { | |
| 0 | 3407 LIR_Op* prev = inst->at(i - 1); |
| 3408 if (LIRFillDelaySlots && prev && prev->code() == lir_move && prev->info() == NULL && | |
| 3409 (op->code() != lir_virtual_call || | |
| 3410 !prev->result_opr()->is_single_cpu() || | |
| 3411 prev->result_opr()->as_register() != O0) && | |
| 3412 LIR_Assembler::is_single_instruction(prev)) { | |
| 3413 // Only moves without info can be put into the delay slot. | |
| 3414 // Also don't allow the setup of the receiver in the delay | |
| 3415 // slot for vtable calls. | |
| 3416 inst->at_put(i - 1, op); | |
| 3417 inst->at_put(i, new LIR_OpDelay(prev, op->info())); | |
| 3418 #ifndef PRODUCT | |
| 3419 if (LIRTracePeephole) { | |
| 3420 tty->print_cr("delayed"); | |
| 3421 inst->at(i - 1)->print(); | |
| 3422 inst->at(i)->print(); | |
| 1564 | 3423 tty->cr(); |
| 0 | 3424 } |
| 3425 #endif | |
| 1783 | 3426 } else { |
| 3427 LIR_Op* delay_op = new LIR_OpDelay(new LIR_Op0(lir_nop), op->as_OpJavaCall()->info()); | |
| 3428 inst->insert_before(i + 1, delay_op); | |
| 3429 i++; | |
| 0 | 3430 } |
| 3431 | |
| 1783 | 3432 #if defined(TIERED) && !defined(_LP64) |
| 3433 // fixup the return value from G1 to O0/O1 for long returns. | |
| 3434 // It's done here instead of in LIRGenerator because there's | |
| 3435 // such a mismatch between the single reg and double reg | |
| 3436 // calling convention. | |
| 3437 LIR_OpJavaCall* callop = op->as_OpJavaCall(); | |
| 3438 if (callop->result_opr() == FrameMap::out_long_opr) { | |
| 3439 LIR_OpJavaCall* call; | |
| 3440 LIR_OprList* arguments = new LIR_OprList(callop->arguments()->length()); | |
| 3441 for (int a = 0; a < arguments->length(); a++) { | |
| 3442 arguments[a] = callop->arguments()[a]; | |
| 3443 } | |
| 3444 if (op->code() == lir_virtual_call) { | |
| 3445 call = new LIR_OpJavaCall(op->code(), callop->method(), callop->receiver(), FrameMap::g1_long_single_opr, | |
| 3446 callop->vtable_offset(), arguments, callop->info()); | |
| 3447 } else { | |
| 3448 call = new LIR_OpJavaCall(op->code(), callop->method(), callop->receiver(), FrameMap::g1_long_single_opr, | |
| 3449 callop->addr(), arguments, callop->info()); | |
| 3450 } | |
| 3451 inst->at_put(i - 1, call); | |
| 3452 inst->insert_before(i + 1, new LIR_Op1(lir_unpack64, FrameMap::g1_long_single_opr, callop->result_opr(), | |
| 3453 T_LONG, lir_patch_none, NULL)); | |
| 3454 } | |
| 3455 #endif | |
| 0 | 3456 break; |
| 3457 } | |
| 3458 } | |
| 3459 } | |
| 3460 } | |
| 3461 | |
|
6795
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3462 void LIR_Assembler::atomic_op(LIR_Code code, LIR_Opr src, LIR_Opr data, LIR_Opr dest, LIR_Opr tmp) { |
|
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3463 LIR_Address* addr = src->as_address_ptr(); |
|
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|
3464 |
|
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|
3465 assert(data == dest, "swap uses only 2 operands"); |
|
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|
3466 assert (code == lir_xchg, "no xadd on sparc"); |
|
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|
3467 |
|
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|
3468 if (data->type() == T_INT) { |
|
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|
3469 __ swap(as_Address(addr), data->as_register()); |
|
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|
3470 } else if (data->is_oop()) { |
|
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|
3471 Register obj = data->as_register(); |
|
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|
3472 Register narrow = tmp->as_register(); |
|
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|
3473 #ifdef _LP64 |
|
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|
3474 assert(UseCompressedOops, "swap is 32bit only"); |
|
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|
3475 __ encode_heap_oop(obj, narrow); |
|
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|
3476 __ swap(as_Address(addr), narrow); |
|
7eca5de9e0b6
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|
3477 __ decode_heap_oop(narrow, obj); |
|
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|
3478 #else |
|
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|
3479 __ swap(as_Address(addr), obj); |
|
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|
3480 #endif |
|
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|
3481 } else { |
|
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|
3482 ShouldNotReachHere(); |
|
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|
3483 } |
|
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|
3484 } |
| 0 | 3485 |
| 3486 #undef __ |