Mercurial > hg > graal-jvmci-8
annotate src/cpu/sparc/vm/c1_LIRAssembler_sparc.cpp @ 6739:8a02ca5e5576
7195816: NPG: Crash in c1_ValueType - ShouldNotReachHere
Summary: C1 needs knowledge of T_METADATA at the LIR level.
Reviewed-by: kvn, coleenp
| author | roland |
|---|---|
| date | Tue, 11 Sep 2012 16:20:57 +0200 |
| parents | da91efe96a93 |
| children | 7eca5de9e0b6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 6057 | 2 * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "c1/c1_Compilation.hpp" | |
| 27 #include "c1/c1_LIRAssembler.hpp" | |
| 28 #include "c1/c1_MacroAssembler.hpp" | |
| 29 #include "c1/c1_Runtime1.hpp" | |
| 30 #include "c1/c1_ValueStack.hpp" | |
| 31 #include "ci/ciArrayKlass.hpp" | |
| 32 #include "ci/ciInstance.hpp" | |
| 33 #include "gc_interface/collectedHeap.hpp" | |
| 34 #include "memory/barrierSet.hpp" | |
| 35 #include "memory/cardTableModRefBS.hpp" | |
| 36 #include "nativeInst_sparc.hpp" | |
| 37 #include "oops/objArrayKlass.hpp" | |
| 38 #include "runtime/sharedRuntime.hpp" | |
| 0 | 39 |
| 40 #define __ _masm-> | |
| 41 | |
| 42 | |
| 43 //------------------------------------------------------------ | |
| 44 | |
| 45 | |
| 46 bool LIR_Assembler::is_small_constant(LIR_Opr opr) { | |
| 47 if (opr->is_constant()) { | |
| 48 LIR_Const* constant = opr->as_constant_ptr(); | |
| 49 switch (constant->type()) { | |
| 50 case T_INT: { | |
| 51 jint value = constant->as_jint(); | |
| 52 return Assembler::is_simm13(value); | |
| 53 } | |
| 54 | |
| 55 default: | |
| 56 return false; | |
| 57 } | |
| 58 } | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 bool LIR_Assembler::is_single_instruction(LIR_Op* op) { | |
| 64 switch (op->code()) { | |
| 65 case lir_null_check: | |
| 66 return true; | |
| 67 | |
| 68 | |
| 69 case lir_add: | |
| 70 case lir_ushr: | |
| 71 case lir_shr: | |
| 72 case lir_shl: | |
| 73 // integer shifts and adds are always one instruction | |
| 74 return op->result_opr()->is_single_cpu(); | |
| 75 | |
| 76 | |
| 77 case lir_move: { | |
| 78 LIR_Op1* op1 = op->as_Op1(); | |
| 79 LIR_Opr src = op1->in_opr(); | |
| 80 LIR_Opr dst = op1->result_opr(); | |
| 81 | |
| 82 if (src == dst) { | |
| 83 NEEDS_CLEANUP; | |
| 84 // this works around a problem where moves with the same src and dst | |
| 85 // end up in the delay slot and then the assembler swallows the mov | |
| 86 // since it has no effect and then it complains because the delay slot | |
| 87 // is empty. returning false stops the optimizer from putting this in | |
| 88 // the delay slot | |
| 89 return false; | |
| 90 } | |
| 91 | |
| 92 // don't put moves involving oops into the delay slot since the VerifyOops code | |
| 93 // will make it much larger than a single instruction. | |
| 94 if (VerifyOops) { | |
| 95 return false; | |
| 96 } | |
| 97 | |
| 98 if (src->is_double_cpu() || dst->is_double_cpu() || op1->patch_code() != lir_patch_none || | |
| 99 ((src->is_double_fpu() || dst->is_double_fpu()) && op1->move_kind() != lir_move_normal)) { | |
| 100 return false; | |
| 101 } | |
| 102 | |
| 2002 | 103 if (UseCompressedOops) { |
| 104 if (dst->is_address() && !dst->is_stack() && (dst->type() == T_OBJECT || dst->type() == T_ARRAY)) return false; | |
| 105 if (src->is_address() && !src->is_stack() && (src->type() == T_OBJECT || src->type() == T_ARRAY)) return false; | |
| 106 } | |
| 107 | |
| 0 | 108 if (dst->is_register()) { |
| 109 if (src->is_address() && Assembler::is_simm13(src->as_address_ptr()->disp())) { | |
| 110 return !PatchALot; | |
| 111 } else if (src->is_single_stack()) { | |
| 112 return true; | |
| 113 } | |
| 114 } | |
| 115 | |
| 116 if (src->is_register()) { | |
| 117 if (dst->is_address() && Assembler::is_simm13(dst->as_address_ptr()->disp())) { | |
| 118 return !PatchALot; | |
| 119 } else if (dst->is_single_stack()) { | |
| 120 return true; | |
| 121 } | |
| 122 } | |
| 123 | |
| 124 if (dst->is_register() && | |
| 125 ((src->is_register() && src->is_single_word() && src->is_same_type(dst)) || | |
| 126 (src->is_constant() && LIR_Assembler::is_small_constant(op->as_Op1()->in_opr())))) { | |
| 127 return true; | |
| 128 } | |
| 129 | |
| 130 return false; | |
| 131 } | |
| 132 | |
| 133 default: | |
| 134 return false; | |
| 135 } | |
| 136 ShouldNotReachHere(); | |
| 137 } | |
| 138 | |
| 139 | |
| 140 LIR_Opr LIR_Assembler::receiverOpr() { | |
| 141 return FrameMap::O0_oop_opr; | |
| 142 } | |
| 143 | |
| 144 | |
| 145 LIR_Opr LIR_Assembler::osrBufferPointer() { | |
| 146 return FrameMap::I0_opr; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 int LIR_Assembler::initial_frame_size_in_bytes() { | |
| 151 return in_bytes(frame_map()->framesize_in_bytes()); | |
| 152 } | |
| 153 | |
| 154 | |
| 155 // inline cache check: the inline cached class is in G5_inline_cache_reg(G5); | |
| 156 // we fetch the class of the receiver (O0) and compare it with the cached class. | |
| 157 // If they do not match we jump to slow case. | |
| 158 int LIR_Assembler::check_icache() { | |
| 159 int offset = __ offset(); | |
| 160 __ inline_cache_check(O0, G5_inline_cache_reg); | |
| 161 return offset; | |
| 162 } | |
| 163 | |
| 164 | |
| 165 void LIR_Assembler::osr_entry() { | |
| 166 // On-stack-replacement entry sequence (interpreter frame layout described in interpreter_sparc.cpp): | |
| 167 // | |
| 168 // 1. Create a new compiled activation. | |
| 169 // 2. Initialize local variables in the compiled activation. The expression stack must be empty | |
| 170 // at the osr_bci; it is not initialized. | |
| 171 // 3. Jump to the continuation address in compiled code to resume execution. | |
| 172 | |
| 173 // OSR entry point | |
| 174 offsets()->set_value(CodeOffsets::OSR_Entry, code_offset()); | |
| 175 BlockBegin* osr_entry = compilation()->hir()->osr_entry(); | |
| 176 ValueStack* entry_state = osr_entry->end()->state(); | |
| 177 int number_of_locks = entry_state->locks_size(); | |
| 178 | |
| 179 // Create a frame for the compiled activation. | |
| 180 __ build_frame(initial_frame_size_in_bytes()); | |
| 181 | |
| 182 // OSR buffer is | |
| 183 // | |
| 184 // locals[nlocals-1..0] | |
| 185 // monitors[number_of_locks-1..0] | |
| 186 // | |
| 187 // locals is a direct copy of the interpreter frame so in the osr buffer | |
| 188 // so first slot in the local array is the last local from the interpreter | |
| 189 // and last slot is local[0] (receiver) from the interpreter | |
| 190 // | |
| 191 // Similarly with locks. The first lock slot in the osr buffer is the nth lock | |
| 192 // from the interpreter frame, the nth lock slot in the osr buffer is 0th lock | |
| 193 // in the interpreter frame (the method lock if a sync method) | |
| 194 | |
| 195 // Initialize monitors in the compiled activation. | |
| 196 // I0: pointer to osr buffer | |
| 197 // | |
| 198 // All other registers are dead at this point and the locals will be | |
| 199 // copied into place by code emitted in the IR. | |
| 200 | |
| 201 Register OSR_buf = osrBufferPointer()->as_register(); | |
| 202 { assert(frame::interpreter_frame_monitor_size() == BasicObjectLock::size(), "adjust code below"); | |
| 203 int monitor_offset = BytesPerWord * method()->max_locals() + | |
| 1060 | 204 (2 * BytesPerWord) * (number_of_locks - 1); |
| 205 // SharedRuntime::OSR_migration_begin() packs BasicObjectLocks in | |
| 206 // the OSR buffer using 2 word entries: first the lock and then | |
| 207 // the oop. | |
| 0 | 208 for (int i = 0; i < number_of_locks; i++) { |
| 1060 | 209 int slot_offset = monitor_offset - ((i * 2) * BytesPerWord); |
| 0 | 210 #ifdef ASSERT |
| 211 // verify the interpreter's monitor has a non-null object | |
| 212 { | |
| 213 Label L; | |
| 1060 | 214 __ ld_ptr(OSR_buf, slot_offset + 1*BytesPerWord, O7); |
| 3839 | 215 __ cmp_and_br_short(O7, G0, Assembler::notEqual, Assembler::pt, L); |
| 0 | 216 __ stop("locked object is NULL"); |
| 217 __ bind(L); | |
| 218 } | |
| 219 #endif // ASSERT | |
| 220 // Copy the lock field into the compiled activation. | |
| 1060 | 221 __ ld_ptr(OSR_buf, slot_offset + 0, O7); |
| 0 | 222 __ st_ptr(O7, frame_map()->address_for_monitor_lock(i)); |
| 1060 | 223 __ ld_ptr(OSR_buf, slot_offset + 1*BytesPerWord, O7); |
| 0 | 224 __ st_ptr(O7, frame_map()->address_for_monitor_object(i)); |
| 225 } | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 | |
| 230 // Optimized Library calls | |
| 231 // This is the fast version of java.lang.String.compare; it has not | |
| 232 // OSR-entry and therefore, we generate a slow version for OSR's | |
| 233 void LIR_Assembler::emit_string_compare(LIR_Opr left, LIR_Opr right, LIR_Opr dst, CodeEmitInfo* info) { | |
| 234 Register str0 = left->as_register(); | |
| 235 Register str1 = right->as_register(); | |
| 236 | |
| 237 Label Ldone; | |
| 238 | |
| 239 Register result = dst->as_register(); | |
| 240 { | |
| 6057 | 241 // Get a pointer to the first character of string0 in tmp0 |
| 242 // and get string0.length() in str0 | |
| 243 // Get a pointer to the first character of string1 in tmp1 | |
| 244 // and get string1.length() in str1 | |
| 245 // Also, get string0.length()-string1.length() in | |
| 246 // o7 and get the condition code set | |
| 0 | 247 // Note: some instructions have been hoisted for better instruction scheduling |
| 248 | |
| 249 Register tmp0 = L0; | |
| 250 Register tmp1 = L1; | |
| 251 Register tmp2 = L2; | |
| 252 | |
| 253 int value_offset = java_lang_String:: value_offset_in_bytes(); // char array | |
| 6057 | 254 if (java_lang_String::has_offset_field()) { |
| 255 int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position | |
| 256 int count_offset = java_lang_String:: count_offset_in_bytes(); | |
| 257 __ load_heap_oop(str0, value_offset, tmp0); | |
| 258 __ ld(str0, offset_offset, tmp2); | |
| 259 __ add(tmp0, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0); | |
| 260 __ ld(str0, count_offset, str0); | |
| 261 __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2); | |
| 262 } else { | |
| 263 __ load_heap_oop(str0, value_offset, tmp1); | |
| 264 __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp0); | |
| 265 __ ld(tmp1, arrayOopDesc::length_offset_in_bytes(), str0); | |
| 266 } | |
| 0 | 267 |
| 268 // str1 may be null | |
| 269 add_debug_info_for_null_check_here(info); | |
| 270 | |
| 6057 | 271 if (java_lang_String::has_offset_field()) { |
| 272 int offset_offset = java_lang_String::offset_offset_in_bytes(); // first character position | |
| 273 int count_offset = java_lang_String:: count_offset_in_bytes(); | |
| 274 __ load_heap_oop(str1, value_offset, tmp1); | |
| 275 __ add(tmp0, tmp2, tmp0); | |
| 276 | |
| 277 __ ld(str1, offset_offset, tmp2); | |
| 278 __ add(tmp1, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1); | |
| 279 __ ld(str1, count_offset, str1); | |
| 280 __ sll(tmp2, exact_log2(sizeof(jchar)), tmp2); | |
| 281 __ add(tmp1, tmp2, tmp1); | |
| 282 } else { | |
| 283 __ load_heap_oop(str1, value_offset, tmp2); | |
| 284 __ add(tmp2, arrayOopDesc::base_offset_in_bytes(T_CHAR), tmp1); | |
| 285 __ ld(tmp2, arrayOopDesc::length_offset_in_bytes(), str1); | |
| 286 } | |
| 0 | 287 __ subcc(str0, str1, O7); |
| 288 } | |
| 289 | |
| 290 { | |
| 291 // Compute the minimum of the string lengths, scale it and store it in limit | |
| 292 Register count0 = I0; | |
| 293 Register count1 = I1; | |
| 294 Register limit = L3; | |
| 295 | |
| 296 Label Lskip; | |
| 297 __ sll(count0, exact_log2(sizeof(jchar)), limit); // string0 is shorter | |
| 298 __ br(Assembler::greater, true, Assembler::pt, Lskip); | |
| 299 __ delayed()->sll(count1, exact_log2(sizeof(jchar)), limit); // string1 is shorter | |
| 300 __ bind(Lskip); | |
| 301 | |
| 302 // If either string is empty (or both of them) the result is the difference in lengths | |
| 303 __ cmp(limit, 0); | |
| 304 __ br(Assembler::equal, true, Assembler::pn, Ldone); | |
| 305 __ delayed()->mov(O7, result); // result is difference in lengths | |
| 306 } | |
| 307 | |
| 308 { | |
| 309 // Neither string is empty | |
| 310 Label Lloop; | |
| 311 | |
| 312 Register base0 = L0; | |
| 313 Register base1 = L1; | |
| 314 Register chr0 = I0; | |
| 315 Register chr1 = I1; | |
| 316 Register limit = L3; | |
| 317 | |
| 318 // Shift base0 and base1 to the end of the arrays, negate limit | |
| 319 __ add(base0, limit, base0); | |
| 320 __ add(base1, limit, base1); | |
| 6057 | 321 __ neg(limit); // limit = -min{string0.length(), string1.length()} |
| 0 | 322 |
| 323 __ lduh(base0, limit, chr0); | |
| 324 __ bind(Lloop); | |
| 325 __ lduh(base1, limit, chr1); | |
| 326 __ subcc(chr0, chr1, chr0); | |
| 327 __ br(Assembler::notZero, false, Assembler::pn, Ldone); | |
| 328 assert(chr0 == result, "result must be pre-placed"); | |
| 329 __ delayed()->inccc(limit, sizeof(jchar)); | |
| 330 __ br(Assembler::notZero, true, Assembler::pt, Lloop); | |
| 331 __ delayed()->lduh(base0, limit, chr0); | |
| 332 } | |
| 333 | |
| 334 // If strings are equal up to min length, return the length difference. | |
| 335 __ mov(O7, result); | |
| 336 | |
| 337 // Otherwise, return the difference between the first mismatched chars. | |
| 338 __ bind(Ldone); | |
| 339 } | |
| 340 | |
| 341 | |
| 342 // -------------------------------------------------------------------------------------------- | |
| 343 | |
| 344 void LIR_Assembler::monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no) { | |
| 345 if (!GenerateSynchronizationCode) return; | |
| 346 | |
| 347 Register obj_reg = obj_opr->as_register(); | |
| 348 Register lock_reg = lock_opr->as_register(); | |
| 349 | |
| 350 Address mon_addr = frame_map()->address_for_monitor_lock(monitor_no); | |
| 351 Register reg = mon_addr.base(); | |
| 352 int offset = mon_addr.disp(); | |
| 353 // compute pointer to BasicLock | |
| 354 if (mon_addr.is_simm13()) { | |
| 355 __ add(reg, offset, lock_reg); | |
| 356 } | |
| 357 else { | |
| 358 __ set(offset, lock_reg); | |
| 359 __ add(reg, lock_reg, lock_reg); | |
| 360 } | |
| 361 // unlock object | |
| 362 MonitorAccessStub* slow_case = new MonitorExitStub(lock_opr, UseFastLocking, monitor_no); | |
| 363 // _slow_case_stubs->append(slow_case); | |
| 364 // temporary fix: must be created after exceptionhandler, therefore as call stub | |
| 365 _slow_case_stubs->append(slow_case); | |
| 366 if (UseFastLocking) { | |
| 367 // try inlined fast unlocking first, revert to slow locking if it fails | |
| 368 // note: lock_reg points to the displaced header since the displaced header offset is 0! | |
| 369 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 370 __ unlock_object(hdr, obj_reg, lock_reg, *slow_case->entry()); | |
| 371 } else { | |
| 372 // always do slow unlocking | |
| 373 // note: the slow unlocking code could be inlined here, however if we use | |
| 374 // slow unlocking, speed doesn't matter anyway and this solution is | |
| 375 // simpler and requires less duplicated code - additionally, the | |
| 376 // slow unlocking code is the same in either case which simplifies | |
| 377 // debugging | |
| 378 __ br(Assembler::always, false, Assembler::pt, *slow_case->entry()); | |
| 379 __ delayed()->nop(); | |
| 380 } | |
| 381 // done | |
| 382 __ bind(*slow_case->continuation()); | |
| 383 } | |
| 384 | |
| 385 | |
| 1204 | 386 int LIR_Assembler::emit_exception_handler() { |
| 0 | 387 // if the last instruction is a call (typically to do a throw which |
| 388 // is coming at the end after block reordering) the return address | |
| 389 // must still point into the code area in order to avoid assertion | |
| 390 // failures when searching for the corresponding bci => add a nop | |
| 391 // (was bug 5/14/1999 - gri) | |
| 392 __ nop(); | |
| 393 | |
| 394 // generate code for exception handler | |
| 395 ciMethod* method = compilation()->method(); | |
| 396 | |
| 397 address handler_base = __ start_a_stub(exception_handler_size); | |
| 398 | |
| 399 if (handler_base == NULL) { | |
| 400 // not enough space left for the handler | |
| 401 bailout("exception handler overflow"); | |
| 1204 | 402 return -1; |
| 0 | 403 } |
| 1204 | 404 |
| 0 | 405 int offset = code_offset(); |
| 406 | |
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407 __ call(Runtime1::entry_for(Runtime1::handle_exception_from_callee_id), relocInfo::runtime_call_type); |
| 0 | 408 __ delayed()->nop(); |
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409 __ should_not_reach_here(); |
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410 guarantee(code_offset() - offset <= exception_handler_size, "overflow"); |
| 0 | 411 __ end_a_stub(); |
| 1204 | 412 |
| 413 return offset; | |
| 0 | 414 } |
| 415 | |
| 1204 | 416 |
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417 // Emit the code to remove the frame from the stack in the exception |
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418 // unwind path. |
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419 int LIR_Assembler::emit_unwind_handler() { |
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420 #ifndef PRODUCT |
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421 if (CommentedAssembly) { |
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422 _masm->block_comment("Unwind handler"); |
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423 } |
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424 #endif |
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425 |
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426 int offset = code_offset(); |
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427 |
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428 // Fetch the exception from TLS and clear out exception related thread state |
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429 __ ld_ptr(G2_thread, in_bytes(JavaThread::exception_oop_offset()), O0); |
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430 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_oop_offset())); |
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431 __ st_ptr(G0, G2_thread, in_bytes(JavaThread::exception_pc_offset())); |
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432 |
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433 __ bind(_unwind_handler_entry); |
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434 __ verify_not_null_oop(O0); |
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435 if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) { |
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436 __ mov(O0, I0); // Preserve the exception |
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437 } |
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438 |
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439 // Preform needed unlocking |
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440 MonitorExitStub* stub = NULL; |
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441 if (method()->is_synchronized()) { |
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442 monitor_address(0, FrameMap::I1_opr); |
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443 stub = new MonitorExitStub(FrameMap::I1_opr, true, 0); |
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444 __ unlock_object(I3, I2, I1, *stub->entry()); |
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445 __ bind(*stub->continuation()); |
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446 } |
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447 |
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448 if (compilation()->env()->dtrace_method_probes()) { |
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449 __ mov(G2_thread, O0); |
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450 __ save_thread(I1); // need to preserve thread in G2 across |
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451 // runtime call |
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452 metadata2reg(method()->constant_encoding(), O1); |
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453 __ call(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), relocInfo::runtime_call_type); |
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454 __ delayed()->nop(); |
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455 __ restore_thread(I1); |
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456 } |
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457 |
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458 if (method()->is_synchronized() || compilation()->env()->dtrace_method_probes()) { |
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459 __ mov(I0, O0); // Restore the exception |
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460 } |
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461 |
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462 // dispatch to the unwind logic |
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463 __ call(Runtime1::entry_for(Runtime1::unwind_exception_id), relocInfo::runtime_call_type); |
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464 __ delayed()->nop(); |
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465 |
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466 // Emit the slow path assembly |
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467 if (stub != NULL) { |
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468 stub->emit_code(this); |
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469 } |
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470 |
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471 return offset; |
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472 } |
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473 |
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474 |
| 1204 | 475 int LIR_Assembler::emit_deopt_handler() { |
| 0 | 476 // if the last instruction is a call (typically to do a throw which |
| 477 // is coming at the end after block reordering) the return address | |
| 478 // must still point into the code area in order to avoid assertion | |
| 479 // failures when searching for the corresponding bci => add a nop | |
| 480 // (was bug 5/14/1999 - gri) | |
| 481 __ nop(); | |
| 482 | |
| 483 // generate code for deopt handler | |
| 484 ciMethod* method = compilation()->method(); | |
| 485 address handler_base = __ start_a_stub(deopt_handler_size); | |
| 486 if (handler_base == NULL) { | |
| 487 // not enough space left for the handler | |
| 488 bailout("deopt handler overflow"); | |
| 1204 | 489 return -1; |
| 0 | 490 } |
| 1204 | 491 |
| 0 | 492 int offset = code_offset(); |
| 727 | 493 AddressLiteral deopt_blob(SharedRuntime::deopt_blob()->unpack()); |
| 494 __ JUMP(deopt_blob, G3_scratch, 0); // sethi;jmp | |
| 0 | 495 __ delayed()->nop(); |
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496 guarantee(code_offset() - offset <= deopt_handler_size, "overflow"); |
| 0 | 497 __ end_a_stub(); |
| 1204 | 498 |
| 499 return offset; | |
| 0 | 500 } |
| 501 | |
| 502 | |
| 503 void LIR_Assembler::jobject2reg(jobject o, Register reg) { | |
| 504 if (o == NULL) { | |
| 505 __ set(NULL_WORD, reg); | |
| 506 } else { | |
| 507 int oop_index = __ oop_recorder()->find_index(o); | |
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508 assert(Universe::heap()->is_in_reserved(JNIHandles::resolve(o)), "should be real oop"); |
| 0 | 509 RelocationHolder rspec = oop_Relocation::spec(oop_index); |
| 510 __ set(NULL_WORD, reg, rspec); // Will be set when the nmethod is created | |
| 511 } | |
| 512 } | |
| 513 | |
| 514 | |
| 515 void LIR_Assembler::jobject2reg_with_patching(Register reg, CodeEmitInfo *info) { | |
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516 // Allocate a new index in table to hold the object once it's been patched |
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517 int oop_index = __ oop_recorder()->allocate_oop_index(NULL); |
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518 PatchingStub* patch = new PatchingStub(_masm, PatchingStub::load_mirror_id, oop_index); |
| 0 | 519 |
| 727 | 520 AddressLiteral addrlit(NULL, oop_Relocation::spec(oop_index)); |
| 521 assert(addrlit.rspec().type() == relocInfo::oop_type, "must be an oop reloc"); | |
| 0 | 522 // It may not seem necessary to use a sethi/add pair to load a NULL into dest, but the |
| 523 // NULL will be dynamically patched later and the patched value may be large. We must | |
| 524 // therefore generate the sethi/add as a placeholders | |
| 727 | 525 __ patchable_set(addrlit, reg); |
| 0 | 526 |
| 527 patching_epilog(patch, lir_patch_normal, reg, info); | |
| 528 } | |
| 529 | |
| 530 | |
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531 void LIR_Assembler::metadata2reg(Metadata* o, Register reg) { |
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532 __ set_metadata_constant(o, reg); |
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533 } |
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534 |
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535 void LIR_Assembler::klass2reg_with_patching(Register reg, CodeEmitInfo *info) { |
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536 // Allocate a new index in table to hold the klass once it's been patched |
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537 int index = __ oop_recorder()->allocate_metadata_index(NULL); |
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538 PatchingStub* patch = new PatchingStub(_masm, PatchingStub::load_klass_id, index); |
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539 AddressLiteral addrlit(NULL, metadata_Relocation::spec(index)); |
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540 assert(addrlit.rspec().type() == relocInfo::metadata_type, "must be an metadata reloc"); |
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541 // It may not seem necessary to use a sethi/add pair to load a NULL into dest, but the |
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542 // NULL will be dynamically patched later and the patched value may be large. We must |
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543 // therefore generate the sethi/add as a placeholders |
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544 __ patchable_set(addrlit, reg); |
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545 |
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546 patching_epilog(patch, lir_patch_normal, reg, info); |
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547 } |
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548 |
| 0 | 549 void LIR_Assembler::emit_op3(LIR_Op3* op) { |
| 550 Register Rdividend = op->in_opr1()->as_register(); | |
| 551 Register Rdivisor = noreg; | |
| 552 Register Rscratch = op->in_opr3()->as_register(); | |
| 553 Register Rresult = op->result_opr()->as_register(); | |
| 554 int divisor = -1; | |
| 555 | |
| 556 if (op->in_opr2()->is_register()) { | |
| 557 Rdivisor = op->in_opr2()->as_register(); | |
| 558 } else { | |
| 559 divisor = op->in_opr2()->as_constant_ptr()->as_jint(); | |
| 560 assert(Assembler::is_simm13(divisor), "can only handle simm13"); | |
| 561 } | |
| 562 | |
| 563 assert(Rdividend != Rscratch, ""); | |
| 564 assert(Rdivisor != Rscratch, ""); | |
| 565 assert(op->code() == lir_idiv || op->code() == lir_irem, "Must be irem or idiv"); | |
| 566 | |
| 567 if (Rdivisor == noreg && is_power_of_2(divisor)) { | |
| 568 // convert division by a power of two into some shifts and logical operations | |
| 569 if (op->code() == lir_idiv) { | |
| 570 if (divisor == 2) { | |
| 571 __ srl(Rdividend, 31, Rscratch); | |
| 572 } else { | |
| 573 __ sra(Rdividend, 31, Rscratch); | |
| 574 __ and3(Rscratch, divisor - 1, Rscratch); | |
| 575 } | |
| 576 __ add(Rdividend, Rscratch, Rscratch); | |
| 577 __ sra(Rscratch, log2_intptr(divisor), Rresult); | |
| 578 return; | |
| 579 } else { | |
| 580 if (divisor == 2) { | |
| 581 __ srl(Rdividend, 31, Rscratch); | |
| 582 } else { | |
| 583 __ sra(Rdividend, 31, Rscratch); | |
| 584 __ and3(Rscratch, divisor - 1,Rscratch); | |
| 585 } | |
| 586 __ add(Rdividend, Rscratch, Rscratch); | |
| 587 __ andn(Rscratch, divisor - 1,Rscratch); | |
| 588 __ sub(Rdividend, Rscratch, Rresult); | |
| 589 return; | |
| 590 } | |
| 591 } | |
| 592 | |
| 593 __ sra(Rdividend, 31, Rscratch); | |
| 594 __ wry(Rscratch); | |
| 595 if (!VM_Version::v9_instructions_work()) { | |
| 596 // v9 doesn't require these nops | |
| 597 __ nop(); | |
| 598 __ nop(); | |
| 599 __ nop(); | |
| 600 __ nop(); | |
| 601 } | |
| 602 | |
| 603 add_debug_info_for_div0_here(op->info()); | |
| 604 | |
| 605 if (Rdivisor != noreg) { | |
| 606 __ sdivcc(Rdividend, Rdivisor, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 607 } else { | |
| 608 assert(Assembler::is_simm13(divisor), "can only handle simm13"); | |
| 609 __ sdivcc(Rdividend, divisor, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 610 } | |
| 611 | |
| 612 Label skip; | |
| 613 __ br(Assembler::overflowSet, true, Assembler::pn, skip); | |
| 614 __ delayed()->Assembler::sethi(0x80000000, (op->code() == lir_idiv ? Rresult : Rscratch)); | |
| 615 __ bind(skip); | |
| 616 | |
| 617 if (op->code() == lir_irem) { | |
| 618 if (Rdivisor != noreg) { | |
| 619 __ smul(Rscratch, Rdivisor, Rscratch); | |
| 620 } else { | |
| 621 __ smul(Rscratch, divisor, Rscratch); | |
| 622 } | |
| 623 __ sub(Rdividend, Rscratch, Rresult); | |
| 624 } | |
| 625 } | |
| 626 | |
| 627 | |
| 628 void LIR_Assembler::emit_opBranch(LIR_OpBranch* op) { | |
| 629 #ifdef ASSERT | |
| 630 assert(op->block() == NULL || op->block()->label() == op->label(), "wrong label"); | |
| 631 if (op->block() != NULL) _branch_target_blocks.append(op->block()); | |
| 632 if (op->ublock() != NULL) _branch_target_blocks.append(op->ublock()); | |
| 633 #endif | |
| 634 assert(op->info() == NULL, "shouldn't have CodeEmitInfo"); | |
| 635 | |
| 636 if (op->cond() == lir_cond_always) { | |
| 637 __ br(Assembler::always, false, Assembler::pt, *(op->label())); | |
| 638 } else if (op->code() == lir_cond_float_branch) { | |
| 639 assert(op->ublock() != NULL, "must have unordered successor"); | |
| 640 bool is_unordered = (op->ublock() == op->block()); | |
| 641 Assembler::Condition acond; | |
| 642 switch (op->cond()) { | |
| 643 case lir_cond_equal: acond = Assembler::f_equal; break; | |
| 644 case lir_cond_notEqual: acond = Assembler::f_notEqual; break; | |
| 645 case lir_cond_less: acond = (is_unordered ? Assembler::f_unorderedOrLess : Assembler::f_less); break; | |
| 646 case lir_cond_greater: acond = (is_unordered ? Assembler::f_unorderedOrGreater : Assembler::f_greater); break; | |
| 647 case lir_cond_lessEqual: acond = (is_unordered ? Assembler::f_unorderedOrLessOrEqual : Assembler::f_lessOrEqual); break; | |
| 648 case lir_cond_greaterEqual: acond = (is_unordered ? Assembler::f_unorderedOrGreaterOrEqual: Assembler::f_greaterOrEqual); break; | |
| 649 default : ShouldNotReachHere(); | |
| 650 }; | |
| 651 | |
| 652 if (!VM_Version::v9_instructions_work()) { | |
| 653 __ nop(); | |
| 654 } | |
| 655 __ fb( acond, false, Assembler::pn, *(op->label())); | |
| 656 } else { | |
| 657 assert (op->code() == lir_branch, "just checking"); | |
| 658 | |
| 659 Assembler::Condition acond; | |
| 660 switch (op->cond()) { | |
| 661 case lir_cond_equal: acond = Assembler::equal; break; | |
| 662 case lir_cond_notEqual: acond = Assembler::notEqual; break; | |
| 663 case lir_cond_less: acond = Assembler::less; break; | |
| 664 case lir_cond_lessEqual: acond = Assembler::lessEqual; break; | |
| 665 case lir_cond_greaterEqual: acond = Assembler::greaterEqual; break; | |
| 666 case lir_cond_greater: acond = Assembler::greater; break; | |
| 667 case lir_cond_aboveEqual: acond = Assembler::greaterEqualUnsigned; break; | |
| 668 case lir_cond_belowEqual: acond = Assembler::lessEqualUnsigned; break; | |
| 669 default: ShouldNotReachHere(); | |
| 670 }; | |
| 671 | |
| 672 // sparc has different condition codes for testing 32-bit | |
| 673 // vs. 64-bit values. We could always test xcc is we could | |
| 674 // guarantee that 32-bit loads always sign extended but that isn't | |
| 675 // true and since sign extension isn't free, it would impose a | |
| 676 // slight cost. | |
| 677 #ifdef _LP64 | |
| 678 if (op->type() == T_INT) { | |
| 679 __ br(acond, false, Assembler::pn, *(op->label())); | |
| 680 } else | |
| 681 #endif | |
| 682 __ brx(acond, false, Assembler::pn, *(op->label())); | |
| 683 } | |
| 684 // The peephole pass fills the delay slot | |
| 685 } | |
| 686 | |
| 687 | |
| 688 void LIR_Assembler::emit_opConvert(LIR_OpConvert* op) { | |
| 689 Bytecodes::Code code = op->bytecode(); | |
| 690 LIR_Opr dst = op->result_opr(); | |
| 691 | |
| 692 switch(code) { | |
| 693 case Bytecodes::_i2l: { | |
| 694 Register rlo = dst->as_register_lo(); | |
| 695 Register rhi = dst->as_register_hi(); | |
| 696 Register rval = op->in_opr()->as_register(); | |
| 697 #ifdef _LP64 | |
| 698 __ sra(rval, 0, rlo); | |
| 699 #else | |
| 700 __ mov(rval, rlo); | |
| 701 __ sra(rval, BitsPerInt-1, rhi); | |
| 702 #endif | |
| 703 break; | |
| 704 } | |
| 705 case Bytecodes::_i2d: | |
| 706 case Bytecodes::_i2f: { | |
| 707 bool is_double = (code == Bytecodes::_i2d); | |
| 708 FloatRegister rdst = is_double ? dst->as_double_reg() : dst->as_float_reg(); | |
| 709 FloatRegisterImpl::Width w = is_double ? FloatRegisterImpl::D : FloatRegisterImpl::S; | |
| 710 FloatRegister rsrc = op->in_opr()->as_float_reg(); | |
| 711 if (rsrc != rdst) { | |
| 712 __ fmov(FloatRegisterImpl::S, rsrc, rdst); | |
| 713 } | |
| 714 __ fitof(w, rdst, rdst); | |
| 715 break; | |
| 716 } | |
| 717 case Bytecodes::_f2i:{ | |
| 718 FloatRegister rsrc = op->in_opr()->as_float_reg(); | |
| 719 Address addr = frame_map()->address_for_slot(dst->single_stack_ix()); | |
| 720 Label L; | |
| 721 // result must be 0 if value is NaN; test by comparing value to itself | |
| 722 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, rsrc, rsrc); | |
| 723 if (!VM_Version::v9_instructions_work()) { | |
| 724 __ nop(); | |
| 725 } | |
| 726 __ fb(Assembler::f_unordered, true, Assembler::pn, L); | |
| 727 __ delayed()->st(G0, addr); // annuled if contents of rsrc is not NaN | |
| 728 __ ftoi(FloatRegisterImpl::S, rsrc, rsrc); | |
| 729 // move integer result from float register to int register | |
| 730 __ stf(FloatRegisterImpl::S, rsrc, addr.base(), addr.disp()); | |
| 731 __ bind (L); | |
| 732 break; | |
| 733 } | |
| 734 case Bytecodes::_l2i: { | |
| 735 Register rlo = op->in_opr()->as_register_lo(); | |
| 736 Register rhi = op->in_opr()->as_register_hi(); | |
| 737 Register rdst = dst->as_register(); | |
| 738 #ifdef _LP64 | |
| 739 __ sra(rlo, 0, rdst); | |
| 740 #else | |
| 741 __ mov(rlo, rdst); | |
| 742 #endif | |
| 743 break; | |
| 744 } | |
| 745 case Bytecodes::_d2f: | |
| 746 case Bytecodes::_f2d: { | |
| 747 bool is_double = (code == Bytecodes::_f2d); | |
| 748 assert((!is_double && dst->is_single_fpu()) || (is_double && dst->is_double_fpu()), "check"); | |
| 749 LIR_Opr val = op->in_opr(); | |
| 750 FloatRegister rval = (code == Bytecodes::_d2f) ? val->as_double_reg() : val->as_float_reg(); | |
| 751 FloatRegister rdst = is_double ? dst->as_double_reg() : dst->as_float_reg(); | |
| 752 FloatRegisterImpl::Width vw = is_double ? FloatRegisterImpl::S : FloatRegisterImpl::D; | |
| 753 FloatRegisterImpl::Width dw = is_double ? FloatRegisterImpl::D : FloatRegisterImpl::S; | |
| 754 __ ftof(vw, dw, rval, rdst); | |
| 755 break; | |
| 756 } | |
| 757 case Bytecodes::_i2s: | |
| 758 case Bytecodes::_i2b: { | |
| 759 Register rval = op->in_opr()->as_register(); | |
| 760 Register rdst = dst->as_register(); | |
| 761 int shift = (code == Bytecodes::_i2b) ? (BitsPerInt - T_BYTE_aelem_bytes * BitsPerByte) : (BitsPerInt - BitsPerShort); | |
| 762 __ sll (rval, shift, rdst); | |
| 763 __ sra (rdst, shift, rdst); | |
| 764 break; | |
| 765 } | |
| 766 case Bytecodes::_i2c: { | |
| 767 Register rval = op->in_opr()->as_register(); | |
| 768 Register rdst = dst->as_register(); | |
| 769 int shift = BitsPerInt - T_CHAR_aelem_bytes * BitsPerByte; | |
| 770 __ sll (rval, shift, rdst); | |
| 771 __ srl (rdst, shift, rdst); | |
| 772 break; | |
| 773 } | |
| 774 | |
| 775 default: ShouldNotReachHere(); | |
| 776 } | |
| 777 } | |
| 778 | |
| 779 | |
| 780 void LIR_Assembler::align_call(LIR_Code) { | |
| 781 // do nothing since all instructions are word aligned on sparc | |
| 782 } | |
| 783 | |
| 784 | |
| 1295 | 785 void LIR_Assembler::call(LIR_OpJavaCall* op, relocInfo::relocType rtype) { |
| 786 __ call(op->addr(), rtype); | |
| 1564 | 787 // The peephole pass fills the delay slot, add_call_info is done in |
| 788 // LIR_Assembler::emit_delay. | |
| 0 | 789 } |
| 790 | |
| 791 | |
| 1295 | 792 void LIR_Assembler::ic_call(LIR_OpJavaCall* op) { |
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793 __ ic_call(op->addr(), false); |
| 1564 | 794 // The peephole pass fills the delay slot, add_call_info is done in |
| 795 // LIR_Assembler::emit_delay. | |
| 0 | 796 } |
| 797 | |
| 798 | |
| 1295 | 799 void LIR_Assembler::vtable_call(LIR_OpJavaCall* op) { |
| 800 add_debug_info_for_null_check_here(op->info()); | |
| 2002 | 801 __ load_klass(O0, G3_scratch); |
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802 if (Assembler::is_simm13(op->vtable_offset())) { |
| 1295 | 803 __ ld_ptr(G3_scratch, op->vtable_offset(), G5_method); |
| 0 | 804 } else { |
| 805 // This will generate 2 instructions | |
| 1295 | 806 __ set(op->vtable_offset(), G5_method); |
| 0 | 807 // ld_ptr, set_hi, set |
| 808 __ ld_ptr(G3_scratch, G5_method, G5_method); | |
| 809 } | |
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810 __ ld_ptr(G5_method, Method::from_compiled_offset(), G3_scratch); |
| 0 | 811 __ callr(G3_scratch, G0); |
| 812 // the peephole pass fills the delay slot | |
| 813 } | |
| 814 | |
| 2002 | 815 int LIR_Assembler::store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide, bool unaligned) { |
| 0 | 816 int store_offset; |
| 817 if (!Assembler::is_simm13(offset + (type == T_LONG) ? wordSize : 0)) { | |
| 818 assert(!unaligned, "can't handle this"); | |
| 819 // for offsets larger than a simm13 we setup the offset in O7 | |
| 727 | 820 __ set(offset, O7); |
| 2002 | 821 store_offset = store(from_reg, base, O7, type, wide); |
| 0 | 822 } else { |
| 2002 | 823 if (type == T_ARRAY || type == T_OBJECT) { |
| 824 __ verify_oop(from_reg->as_register()); | |
| 825 } | |
| 0 | 826 store_offset = code_offset(); |
| 827 switch (type) { | |
| 828 case T_BOOLEAN: // fall through | |
| 829 case T_BYTE : __ stb(from_reg->as_register(), base, offset); break; | |
| 830 case T_CHAR : __ sth(from_reg->as_register(), base, offset); break; | |
| 831 case T_SHORT : __ sth(from_reg->as_register(), base, offset); break; | |
| 832 case T_INT : __ stw(from_reg->as_register(), base, offset); break; | |
| 833 case T_LONG : | |
| 834 #ifdef _LP64 | |
| 835 if (unaligned || PatchALot) { | |
| 836 __ srax(from_reg->as_register_lo(), 32, O7); | |
| 837 __ stw(from_reg->as_register_lo(), base, offset + lo_word_offset_in_bytes); | |
| 838 __ stw(O7, base, offset + hi_word_offset_in_bytes); | |
| 839 } else { | |
| 840 __ stx(from_reg->as_register_lo(), base, offset); | |
| 841 } | |
| 842 #else | |
| 843 assert(Assembler::is_simm13(offset + 4), "must be"); | |
| 844 __ stw(from_reg->as_register_lo(), base, offset + lo_word_offset_in_bytes); | |
| 845 __ stw(from_reg->as_register_hi(), base, offset + hi_word_offset_in_bytes); | |
| 846 #endif | |
| 847 break; | |
| 2002 | 848 case T_ADDRESS: |
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849 case T_METADATA: |
| 2002 | 850 __ st_ptr(from_reg->as_register(), base, offset); |
| 851 break; | |
| 0 | 852 case T_ARRAY : // fall through |
| 2002 | 853 case T_OBJECT: |
| 854 { | |
| 855 if (UseCompressedOops && !wide) { | |
| 856 __ encode_heap_oop(from_reg->as_register(), G3_scratch); | |
| 857 store_offset = code_offset(); | |
| 858 __ stw(G3_scratch, base, offset); | |
| 859 } else { | |
| 860 __ st_ptr(from_reg->as_register(), base, offset); | |
| 861 } | |
| 862 break; | |
| 863 } | |
| 864 | |
| 0 | 865 case T_FLOAT : __ stf(FloatRegisterImpl::S, from_reg->as_float_reg(), base, offset); break; |
| 866 case T_DOUBLE: | |
| 867 { | |
| 868 FloatRegister reg = from_reg->as_double_reg(); | |
| 869 // split unaligned stores | |
| 870 if (unaligned || PatchALot) { | |
| 871 assert(Assembler::is_simm13(offset + 4), "must be"); | |
| 872 __ stf(FloatRegisterImpl::S, reg->successor(), base, offset + 4); | |
| 873 __ stf(FloatRegisterImpl::S, reg, base, offset); | |
| 874 } else { | |
| 875 __ stf(FloatRegisterImpl::D, reg, base, offset); | |
| 876 } | |
| 877 break; | |
| 878 } | |
| 879 default : ShouldNotReachHere(); | |
| 880 } | |
| 881 } | |
| 882 return store_offset; | |
| 883 } | |
| 884 | |
| 885 | |
| 2002 | 886 int LIR_Assembler::store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide) { |
| 887 if (type == T_ARRAY || type == T_OBJECT) { | |
| 888 __ verify_oop(from_reg->as_register()); | |
| 889 } | |
| 0 | 890 int store_offset = code_offset(); |
| 891 switch (type) { | |
| 892 case T_BOOLEAN: // fall through | |
| 893 case T_BYTE : __ stb(from_reg->as_register(), base, disp); break; | |
| 894 case T_CHAR : __ sth(from_reg->as_register(), base, disp); break; | |
| 895 case T_SHORT : __ sth(from_reg->as_register(), base, disp); break; | |
| 896 case T_INT : __ stw(from_reg->as_register(), base, disp); break; | |
| 897 case T_LONG : | |
| 898 #ifdef _LP64 | |
| 899 __ stx(from_reg->as_register_lo(), base, disp); | |
| 900 #else | |
| 901 assert(from_reg->as_register_hi()->successor() == from_reg->as_register_lo(), "must match"); | |
| 902 __ std(from_reg->as_register_hi(), base, disp); | |
| 903 #endif | |
| 904 break; | |
| 2002 | 905 case T_ADDRESS: |
| 906 __ st_ptr(from_reg->as_register(), base, disp); | |
| 907 break; | |
| 0 | 908 case T_ARRAY : // fall through |
| 2002 | 909 case T_OBJECT: |
| 910 { | |
| 911 if (UseCompressedOops && !wide) { | |
| 912 __ encode_heap_oop(from_reg->as_register(), G3_scratch); | |
| 913 store_offset = code_offset(); | |
| 914 __ stw(G3_scratch, base, disp); | |
| 915 } else { | |
| 916 __ st_ptr(from_reg->as_register(), base, disp); | |
| 917 } | |
| 918 break; | |
| 919 } | |
| 0 | 920 case T_FLOAT : __ stf(FloatRegisterImpl::S, from_reg->as_float_reg(), base, disp); break; |
| 921 case T_DOUBLE: __ stf(FloatRegisterImpl::D, from_reg->as_double_reg(), base, disp); break; | |
| 922 default : ShouldNotReachHere(); | |
| 923 } | |
| 924 return store_offset; | |
| 925 } | |
| 926 | |
| 927 | |
| 2002 | 928 int LIR_Assembler::load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide, bool unaligned) { |
| 0 | 929 int load_offset; |
| 930 if (!Assembler::is_simm13(offset + (type == T_LONG) ? wordSize : 0)) { | |
| 931 assert(base != O7, "destroying register"); | |
| 932 assert(!unaligned, "can't handle this"); | |
| 933 // for offsets larger than a simm13 we setup the offset in O7 | |
| 727 | 934 __ set(offset, O7); |
| 2002 | 935 load_offset = load(base, O7, to_reg, type, wide); |
| 0 | 936 } else { |
| 937 load_offset = code_offset(); | |
| 938 switch(type) { | |
| 939 case T_BOOLEAN: // fall through | |
| 940 case T_BYTE : __ ldsb(base, offset, to_reg->as_register()); break; | |
| 941 case T_CHAR : __ lduh(base, offset, to_reg->as_register()); break; | |
| 942 case T_SHORT : __ ldsh(base, offset, to_reg->as_register()); break; | |
| 943 case T_INT : __ ld(base, offset, to_reg->as_register()); break; | |
| 944 case T_LONG : | |
| 945 if (!unaligned) { | |
| 946 #ifdef _LP64 | |
| 947 __ ldx(base, offset, to_reg->as_register_lo()); | |
| 948 #else | |
| 949 assert(to_reg->as_register_hi()->successor() == to_reg->as_register_lo(), | |
| 950 "must be sequential"); | |
| 951 __ ldd(base, offset, to_reg->as_register_hi()); | |
| 952 #endif | |
| 953 } else { | |
| 954 #ifdef _LP64 | |
| 955 assert(base != to_reg->as_register_lo(), "can't handle this"); | |
| 1060 | 956 assert(O7 != to_reg->as_register_lo(), "can't handle this"); |
| 0 | 957 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_lo()); |
| 1060 | 958 __ lduw(base, offset + lo_word_offset_in_bytes, O7); // in case O7 is base or offset, use it last |
| 0 | 959 __ sllx(to_reg->as_register_lo(), 32, to_reg->as_register_lo()); |
| 1060 | 960 __ or3(to_reg->as_register_lo(), O7, to_reg->as_register_lo()); |
| 0 | 961 #else |
| 962 if (base == to_reg->as_register_lo()) { | |
| 963 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_hi()); | |
| 964 __ ld(base, offset + lo_word_offset_in_bytes, to_reg->as_register_lo()); | |
| 965 } else { | |
| 966 __ ld(base, offset + lo_word_offset_in_bytes, to_reg->as_register_lo()); | |
| 967 __ ld(base, offset + hi_word_offset_in_bytes, to_reg->as_register_hi()); | |
| 968 } | |
| 969 #endif | |
| 970 } | |
| 971 break; | |
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972 case T_METADATA: |
| 2002 | 973 case T_ADDRESS: __ ld_ptr(base, offset, to_reg->as_register()); break; |
| 0 | 974 case T_ARRAY : // fall through |
| 2002 | 975 case T_OBJECT: |
| 976 { | |
| 977 if (UseCompressedOops && !wide) { | |
| 978 __ lduw(base, offset, to_reg->as_register()); | |
| 979 __ decode_heap_oop(to_reg->as_register()); | |
| 980 } else { | |
| 981 __ ld_ptr(base, offset, to_reg->as_register()); | |
| 982 } | |
| 983 break; | |
| 984 } | |
| 0 | 985 case T_FLOAT: __ ldf(FloatRegisterImpl::S, base, offset, to_reg->as_float_reg()); break; |
| 986 case T_DOUBLE: | |
| 987 { | |
| 988 FloatRegister reg = to_reg->as_double_reg(); | |
| 989 // split unaligned loads | |
| 990 if (unaligned || PatchALot) { | |
| 1060 | 991 __ ldf(FloatRegisterImpl::S, base, offset + 4, reg->successor()); |
| 992 __ ldf(FloatRegisterImpl::S, base, offset, reg); | |
| 0 | 993 } else { |
| 994 __ ldf(FloatRegisterImpl::D, base, offset, to_reg->as_double_reg()); | |
| 995 } | |
| 996 break; | |
| 997 } | |
| 998 default : ShouldNotReachHere(); | |
| 999 } | |
| 2002 | 1000 if (type == T_ARRAY || type == T_OBJECT) { |
| 1001 __ verify_oop(to_reg->as_register()); | |
| 1002 } | |
| 0 | 1003 } |
| 1004 return load_offset; | |
| 1005 } | |
| 1006 | |
| 1007 | |
| 2002 | 1008 int LIR_Assembler::load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide) { |
| 0 | 1009 int load_offset = code_offset(); |
| 1010 switch(type) { | |
| 1011 case T_BOOLEAN: // fall through | |
| 2002 | 1012 case T_BYTE : __ ldsb(base, disp, to_reg->as_register()); break; |
| 1013 case T_CHAR : __ lduh(base, disp, to_reg->as_register()); break; | |
| 1014 case T_SHORT : __ ldsh(base, disp, to_reg->as_register()); break; | |
| 1015 case T_INT : __ ld(base, disp, to_reg->as_register()); break; | |
| 1016 case T_ADDRESS: __ ld_ptr(base, disp, to_reg->as_register()); break; | |
| 0 | 1017 case T_ARRAY : // fall through |
| 2002 | 1018 case T_OBJECT: |
| 1019 { | |
| 1020 if (UseCompressedOops && !wide) { | |
| 1021 __ lduw(base, disp, to_reg->as_register()); | |
| 1022 __ decode_heap_oop(to_reg->as_register()); | |
| 1023 } else { | |
| 1024 __ ld_ptr(base, disp, to_reg->as_register()); | |
| 1025 } | |
| 1026 break; | |
| 1027 } | |
| 0 | 1028 case T_FLOAT: __ ldf(FloatRegisterImpl::S, base, disp, to_reg->as_float_reg()); break; |
| 1029 case T_DOUBLE: __ ldf(FloatRegisterImpl::D, base, disp, to_reg->as_double_reg()); break; | |
| 1030 case T_LONG : | |
| 1031 #ifdef _LP64 | |
| 1032 __ ldx(base, disp, to_reg->as_register_lo()); | |
| 1033 #else | |
| 1034 assert(to_reg->as_register_hi()->successor() == to_reg->as_register_lo(), | |
| 1035 "must be sequential"); | |
| 1036 __ ldd(base, disp, to_reg->as_register_hi()); | |
| 1037 #endif | |
| 1038 break; | |
| 1039 default : ShouldNotReachHere(); | |
| 1040 } | |
| 2002 | 1041 if (type == T_ARRAY || type == T_OBJECT) { |
| 1042 __ verify_oop(to_reg->as_register()); | |
| 1043 } | |
| 0 | 1044 return load_offset; |
| 1045 } | |
| 1046 | |
| 1047 void LIR_Assembler::const2stack(LIR_Opr src, LIR_Opr dest) { | |
| 1048 LIR_Const* c = src->as_constant_ptr(); | |
| 1049 switch (c->type()) { | |
| 1050 case T_INT: | |
| 2002 | 1051 case T_FLOAT: { |
| 1052 Register src_reg = O7; | |
| 1053 int value = c->as_jint_bits(); | |
| 1054 if (value == 0) { | |
| 1055 src_reg = G0; | |
| 1056 } else { | |
| 1057 __ set(value, O7); | |
| 1058 } | |
| 1059 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1060 __ stw(src_reg, addr.base(), addr.disp()); | |
| 1061 break; | |
| 1062 } | |
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1063 case T_ADDRESS: { |
| 0 | 1064 Register src_reg = O7; |
| 1065 int value = c->as_jint_bits(); | |
| 1066 if (value == 0) { | |
| 1067 src_reg = G0; | |
| 1068 } else { | |
| 1069 __ set(value, O7); | |
| 1070 } | |
| 1071 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 2002 | 1072 __ st_ptr(src_reg, addr.base(), addr.disp()); |
| 0 | 1073 break; |
| 1074 } | |
| 1075 case T_OBJECT: { | |
| 1076 Register src_reg = O7; | |
| 1077 jobject2reg(c->as_jobject(), src_reg); | |
| 1078 Address addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1079 __ st_ptr(src_reg, addr.base(), addr.disp()); | |
| 1080 break; | |
| 1081 } | |
| 1082 case T_LONG: | |
| 1083 case T_DOUBLE: { | |
| 1084 Address addr = frame_map()->address_for_double_slot(dest->double_stack_ix()); | |
| 1085 | |
| 1086 Register tmp = O7; | |
| 1087 int value_lo = c->as_jint_lo_bits(); | |
| 1088 if (value_lo == 0) { | |
| 1089 tmp = G0; | |
| 1090 } else { | |
| 1091 __ set(value_lo, O7); | |
| 1092 } | |
| 1093 __ stw(tmp, addr.base(), addr.disp() + lo_word_offset_in_bytes); | |
| 1094 int value_hi = c->as_jint_hi_bits(); | |
| 1095 if (value_hi == 0) { | |
| 1096 tmp = G0; | |
| 1097 } else { | |
| 1098 __ set(value_hi, O7); | |
| 1099 } | |
| 1100 __ stw(tmp, addr.base(), addr.disp() + hi_word_offset_in_bytes); | |
| 1101 break; | |
| 1102 } | |
| 1103 default: | |
| 1104 Unimplemented(); | |
| 1105 } | |
| 1106 } | |
| 1107 | |
| 1108 | |
| 2002 | 1109 void LIR_Assembler::const2mem(LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info, bool wide) { |
| 0 | 1110 LIR_Const* c = src->as_constant_ptr(); |
| 1111 LIR_Address* addr = dest->as_address_ptr(); | |
| 1112 Register base = addr->base()->as_pointer_register(); | |
| 2002 | 1113 int offset = -1; |
| 1114 | |
| 0 | 1115 switch (c->type()) { |
| 1116 case T_INT: | |
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1117 case T_FLOAT: |
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1118 case T_ADDRESS: { |
| 0 | 1119 LIR_Opr tmp = FrameMap::O7_opr; |
| 1120 int value = c->as_jint_bits(); | |
| 1121 if (value == 0) { | |
| 1122 tmp = FrameMap::G0_opr; | |
| 1123 } else if (Assembler::is_simm13(value)) { | |
| 1124 __ set(value, O7); | |
| 1125 } | |
| 1126 if (addr->index()->is_valid()) { | |
| 1127 assert(addr->disp() == 0, "must be zero"); | |
| 2002 | 1128 offset = store(tmp, base, addr->index()->as_pointer_register(), type, wide); |
| 0 | 1129 } else { |
| 1130 assert(Assembler::is_simm13(addr->disp()), "can't handle larger addresses"); | |
| 2002 | 1131 offset = store(tmp, base, addr->disp(), type, wide, false); |
| 0 | 1132 } |
| 1133 break; | |
| 1134 } | |
| 1135 case T_LONG: | |
| 1136 case T_DOUBLE: { | |
| 1137 assert(!addr->index()->is_valid(), "can't handle reg reg address here"); | |
| 1138 assert(Assembler::is_simm13(addr->disp()) && | |
| 1139 Assembler::is_simm13(addr->disp() + 4), "can't handle larger addresses"); | |
| 1140 | |
| 2002 | 1141 LIR_Opr tmp = FrameMap::O7_opr; |
| 0 | 1142 int value_lo = c->as_jint_lo_bits(); |
| 1143 if (value_lo == 0) { | |
| 2002 | 1144 tmp = FrameMap::G0_opr; |
| 0 | 1145 } else { |
| 1146 __ set(value_lo, O7); | |
| 1147 } | |
| 2002 | 1148 offset = store(tmp, base, addr->disp() + lo_word_offset_in_bytes, T_INT, wide, false); |
| 0 | 1149 int value_hi = c->as_jint_hi_bits(); |
| 1150 if (value_hi == 0) { | |
| 2002 | 1151 tmp = FrameMap::G0_opr; |
| 0 | 1152 } else { |
| 1153 __ set(value_hi, O7); | |
| 1154 } | |
| 4052 | 1155 store(tmp, base, addr->disp() + hi_word_offset_in_bytes, T_INT, wide, false); |
| 0 | 1156 break; |
| 1157 } | |
| 1158 case T_OBJECT: { | |
| 1159 jobject obj = c->as_jobject(); | |
| 1160 LIR_Opr tmp; | |
| 1161 if (obj == NULL) { | |
| 1162 tmp = FrameMap::G0_opr; | |
| 1163 } else { | |
| 1164 tmp = FrameMap::O7_opr; | |
| 1165 jobject2reg(c->as_jobject(), O7); | |
| 1166 } | |
| 1167 // handle either reg+reg or reg+disp address | |
| 1168 if (addr->index()->is_valid()) { | |
| 1169 assert(addr->disp() == 0, "must be zero"); | |
| 2002 | 1170 offset = store(tmp, base, addr->index()->as_pointer_register(), type, wide); |
| 0 | 1171 } else { |
| 1172 assert(Assembler::is_simm13(addr->disp()), "can't handle larger addresses"); | |
| 2002 | 1173 offset = store(tmp, base, addr->disp(), type, wide, false); |
| 0 | 1174 } |
| 1175 | |
| 1176 break; | |
| 1177 } | |
| 1178 default: | |
| 1179 Unimplemented(); | |
| 1180 } | |
| 2002 | 1181 if (info != NULL) { |
| 1182 assert(offset != -1, "offset should've been set"); | |
| 1183 add_debug_info_for_null_check(offset, info); | |
| 1184 } | |
| 0 | 1185 } |
| 1186 | |
| 1187 | |
| 1188 void LIR_Assembler::const2reg(LIR_Opr src, LIR_Opr dest, LIR_PatchCode patch_code, CodeEmitInfo* info) { | |
| 1189 LIR_Const* c = src->as_constant_ptr(); | |
| 1190 LIR_Opr to_reg = dest; | |
| 1191 | |
| 1192 switch (c->type()) { | |
| 1193 case T_INT: | |
|
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1194 case T_ADDRESS: |
| 0 | 1195 { |
| 1196 jint con = c->as_jint(); | |
| 1197 if (to_reg->is_single_cpu()) { | |
| 1198 assert(patch_code == lir_patch_none, "no patching handled here"); | |
| 1199 __ set(con, to_reg->as_register()); | |
| 1200 } else { | |
| 1201 ShouldNotReachHere(); | |
| 1202 assert(to_reg->is_single_fpu(), "wrong register kind"); | |
| 1203 | |
| 1204 __ set(con, O7); | |
| 727 | 1205 Address temp_slot(SP, (frame::register_save_words * wordSize) + STACK_BIAS); |
| 0 | 1206 __ st(O7, temp_slot); |
| 1207 __ ldf(FloatRegisterImpl::S, temp_slot, to_reg->as_float_reg()); | |
| 1208 } | |
| 1209 } | |
| 1210 break; | |
| 1211 | |
| 1212 case T_LONG: | |
| 1213 { | |
| 1214 jlong con = c->as_jlong(); | |
| 1215 | |
| 1216 if (to_reg->is_double_cpu()) { | |
| 1217 #ifdef _LP64 | |
| 1218 __ set(con, to_reg->as_register_lo()); | |
| 1219 #else | |
| 1220 __ set(low(con), to_reg->as_register_lo()); | |
| 1221 __ set(high(con), to_reg->as_register_hi()); | |
| 1222 #endif | |
| 1223 #ifdef _LP64 | |
| 1224 } else if (to_reg->is_single_cpu()) { | |
| 1225 __ set(con, to_reg->as_register()); | |
| 1226 #endif | |
| 1227 } else { | |
| 1228 ShouldNotReachHere(); | |
| 1229 assert(to_reg->is_double_fpu(), "wrong register kind"); | |
| 727 | 1230 Address temp_slot_lo(SP, ((frame::register_save_words ) * wordSize) + STACK_BIAS); |
| 1231 Address temp_slot_hi(SP, ((frame::register_save_words) * wordSize) + (longSize/2) + STACK_BIAS); | |
| 0 | 1232 __ set(low(con), O7); |
| 1233 __ st(O7, temp_slot_lo); | |
| 1234 __ set(high(con), O7); | |
| 1235 __ st(O7, temp_slot_hi); | |
| 1236 __ ldf(FloatRegisterImpl::D, temp_slot_lo, to_reg->as_double_reg()); | |
| 1237 } | |
| 1238 } | |
| 1239 break; | |
| 1240 | |
| 1241 case T_OBJECT: | |
| 1242 { | |
| 1243 if (patch_code == lir_patch_none) { | |
| 1244 jobject2reg(c->as_jobject(), to_reg->as_register()); | |
| 1245 } else { | |
| 1246 jobject2reg_with_patching(to_reg->as_register(), info); | |
| 1247 } | |
| 1248 } | |
| 1249 break; | |
| 1250 | |
|
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1251 case T_METADATA: |
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1252 { |
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1253 if (patch_code == lir_patch_none) { |
|
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1254 metadata2reg(c->as_metadata(), to_reg->as_register()); |
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1255 } else { |
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1256 klass2reg_with_patching(to_reg->as_register(), info); |
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1257 } |
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1258 } |
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1259 break; |
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1260 |
| 0 | 1261 case T_FLOAT: |
| 1262 { | |
| 1263 address const_addr = __ float_constant(c->as_jfloat()); | |
| 1264 if (const_addr == NULL) { | |
| 1265 bailout("const section overflow"); | |
| 1266 break; | |
| 1267 } | |
| 1268 RelocationHolder rspec = internal_word_Relocation::spec(const_addr); | |
| 727 | 1269 AddressLiteral const_addrlit(const_addr, rspec); |
| 0 | 1270 if (to_reg->is_single_fpu()) { |
| 727 | 1271 __ patchable_sethi(const_addrlit, O7); |
| 0 | 1272 __ relocate(rspec); |
| 727 | 1273 __ ldf(FloatRegisterImpl::S, O7, const_addrlit.low10(), to_reg->as_float_reg()); |
| 0 | 1274 |
| 1275 } else { | |
| 1276 assert(to_reg->is_single_cpu(), "Must be a cpu register."); | |
| 1277 | |
| 727 | 1278 __ set(const_addrlit, O7); |
| 2002 | 1279 __ ld(O7, 0, to_reg->as_register()); |
| 0 | 1280 } |
| 1281 } | |
| 1282 break; | |
| 1283 | |
| 1284 case T_DOUBLE: | |
| 1285 { | |
| 1286 address const_addr = __ double_constant(c->as_jdouble()); | |
| 1287 if (const_addr == NULL) { | |
| 1288 bailout("const section overflow"); | |
| 1289 break; | |
| 1290 } | |
| 1291 RelocationHolder rspec = internal_word_Relocation::spec(const_addr); | |
| 1292 | |
| 1293 if (to_reg->is_double_fpu()) { | |
| 727 | 1294 AddressLiteral const_addrlit(const_addr, rspec); |
| 1295 __ patchable_sethi(const_addrlit, O7); | |
| 0 | 1296 __ relocate(rspec); |
| 727 | 1297 __ ldf (FloatRegisterImpl::D, O7, const_addrlit.low10(), to_reg->as_double_reg()); |
| 0 | 1298 } else { |
| 1299 assert(to_reg->is_double_cpu(), "Must be a long register."); | |
| 1300 #ifdef _LP64 | |
| 1301 __ set(jlong_cast(c->as_jdouble()), to_reg->as_register_lo()); | |
| 1302 #else | |
| 1303 __ set(low(jlong_cast(c->as_jdouble())), to_reg->as_register_lo()); | |
| 1304 __ set(high(jlong_cast(c->as_jdouble())), to_reg->as_register_hi()); | |
| 1305 #endif | |
| 1306 } | |
| 1307 | |
| 1308 } | |
| 1309 break; | |
| 1310 | |
| 1311 default: | |
| 1312 ShouldNotReachHere(); | |
| 1313 } | |
| 1314 } | |
| 1315 | |
| 1316 Address LIR_Assembler::as_Address(LIR_Address* addr) { | |
| 1317 Register reg = addr->base()->as_register(); | |
| 727 | 1318 return Address(reg, addr->disp()); |
| 0 | 1319 } |
| 1320 | |
| 1321 | |
| 1322 void LIR_Assembler::stack2stack(LIR_Opr src, LIR_Opr dest, BasicType type) { | |
| 1323 switch (type) { | |
| 1324 case T_INT: | |
| 1325 case T_FLOAT: { | |
| 1326 Register tmp = O7; | |
| 1327 Address from = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1328 Address to = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1329 __ lduw(from.base(), from.disp(), tmp); | |
| 1330 __ stw(tmp, to.base(), to.disp()); | |
| 1331 break; | |
| 1332 } | |
| 1333 case T_OBJECT: { | |
| 1334 Register tmp = O7; | |
| 1335 Address from = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1336 Address to = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1337 __ ld_ptr(from.base(), from.disp(), tmp); | |
| 1338 __ st_ptr(tmp, to.base(), to.disp()); | |
| 1339 break; | |
| 1340 } | |
| 1341 case T_LONG: | |
| 1342 case T_DOUBLE: { | |
| 1343 Register tmp = O7; | |
| 1344 Address from = frame_map()->address_for_double_slot(src->double_stack_ix()); | |
| 1345 Address to = frame_map()->address_for_double_slot(dest->double_stack_ix()); | |
| 1346 __ lduw(from.base(), from.disp(), tmp); | |
| 1347 __ stw(tmp, to.base(), to.disp()); | |
| 1348 __ lduw(from.base(), from.disp() + 4, tmp); | |
| 1349 __ stw(tmp, to.base(), to.disp() + 4); | |
| 1350 break; | |
| 1351 } | |
| 1352 | |
| 1353 default: | |
| 1354 ShouldNotReachHere(); | |
| 1355 } | |
| 1356 } | |
| 1357 | |
| 1358 | |
| 1359 Address LIR_Assembler::as_Address_hi(LIR_Address* addr) { | |
| 1360 Address base = as_Address(addr); | |
| 727 | 1361 return Address(base.base(), base.disp() + hi_word_offset_in_bytes); |
| 0 | 1362 } |
| 1363 | |
| 1364 | |
| 1365 Address LIR_Assembler::as_Address_lo(LIR_Address* addr) { | |
| 1366 Address base = as_Address(addr); | |
| 727 | 1367 return Address(base.base(), base.disp() + lo_word_offset_in_bytes); |
| 0 | 1368 } |
| 1369 | |
| 1370 | |
| 1371 void LIR_Assembler::mem2reg(LIR_Opr src_opr, LIR_Opr dest, BasicType type, | |
| 2002 | 1372 LIR_PatchCode patch_code, CodeEmitInfo* info, bool wide, bool unaligned) { |
| 0 | 1373 |
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1374 assert(type != T_METADATA, "load of metadata ptr not supported"); |
| 0 | 1375 LIR_Address* addr = src_opr->as_address_ptr(); |
| 1376 LIR_Opr to_reg = dest; | |
| 1377 | |
| 1378 Register src = addr->base()->as_pointer_register(); | |
| 1379 Register disp_reg = noreg; | |
| 1380 int disp_value = addr->disp(); | |
| 1381 bool needs_patching = (patch_code != lir_patch_none); | |
| 1382 | |
| 1383 if (addr->base()->type() == T_OBJECT) { | |
| 1384 __ verify_oop(src); | |
| 1385 } | |
| 1386 | |
| 1387 PatchingStub* patch = NULL; | |
| 1388 if (needs_patching) { | |
| 1389 patch = new PatchingStub(_masm, PatchingStub::access_field_id); | |
| 1390 assert(!to_reg->is_double_cpu() || | |
| 1391 patch_code == lir_patch_none || | |
| 1392 patch_code == lir_patch_normal, "patching doesn't match register"); | |
| 1393 } | |
| 1394 | |
| 1395 if (addr->index()->is_illegal()) { | |
| 1396 if (!Assembler::is_simm13(disp_value) && (!unaligned || Assembler::is_simm13(disp_value + 4))) { | |
| 1397 if (needs_patching) { | |
| 727 | 1398 __ patchable_set(0, O7); |
| 0 | 1399 } else { |
| 1400 __ set(disp_value, O7); | |
| 1401 } | |
| 1402 disp_reg = O7; | |
| 1403 } | |
| 1404 } else if (unaligned || PatchALot) { | |
| 1405 __ add(src, addr->index()->as_register(), O7); | |
| 1406 src = O7; | |
| 1407 } else { | |
| 1408 disp_reg = addr->index()->as_pointer_register(); | |
| 1409 assert(disp_value == 0, "can't handle 3 operand addresses"); | |
| 1410 } | |
| 1411 | |
| 1412 // remember the offset of the load. The patching_epilog must be done | |
| 1413 // before the call to add_debug_info, otherwise the PcDescs don't get | |
| 1414 // entered in increasing order. | |
| 1415 int offset = code_offset(); | |
| 1416 | |
| 1417 assert(disp_reg != noreg || Assembler::is_simm13(disp_value), "should have set this up"); | |
| 1418 if (disp_reg == noreg) { | |
| 2002 | 1419 offset = load(src, disp_value, to_reg, type, wide, unaligned); |
| 0 | 1420 } else { |
| 1421 assert(!unaligned, "can't handle this"); | |
| 2002 | 1422 offset = load(src, disp_reg, to_reg, type, wide); |
| 0 | 1423 } |
| 1424 | |
| 1425 if (patch != NULL) { | |
| 1426 patching_epilog(patch, patch_code, src, info); | |
| 1427 } | |
| 1428 if (info != NULL) add_debug_info_for_null_check(offset, info); | |
| 1429 } | |
| 1430 | |
| 1431 | |
| 1432 void LIR_Assembler::prefetchr(LIR_Opr src) { | |
| 1433 LIR_Address* addr = src->as_address_ptr(); | |
| 1434 Address from_addr = as_Address(addr); | |
| 1435 | |
| 1436 if (VM_Version::has_v9()) { | |
| 1437 __ prefetch(from_addr, Assembler::severalReads); | |
| 1438 } | |
| 1439 } | |
| 1440 | |
| 1441 | |
| 1442 void LIR_Assembler::prefetchw(LIR_Opr src) { | |
| 1443 LIR_Address* addr = src->as_address_ptr(); | |
| 1444 Address from_addr = as_Address(addr); | |
| 1445 | |
| 1446 if (VM_Version::has_v9()) { | |
| 1447 __ prefetch(from_addr, Assembler::severalWritesAndPossiblyReads); | |
| 1448 } | |
| 1449 } | |
| 1450 | |
| 1451 | |
| 1452 void LIR_Assembler::stack2reg(LIR_Opr src, LIR_Opr dest, BasicType type) { | |
| 1453 Address addr; | |
| 1454 if (src->is_single_word()) { | |
| 1455 addr = frame_map()->address_for_slot(src->single_stack_ix()); | |
| 1456 } else if (src->is_double_word()) { | |
| 1457 addr = frame_map()->address_for_double_slot(src->double_stack_ix()); | |
| 1458 } | |
| 1459 | |
| 1460 bool unaligned = (addr.disp() - STACK_BIAS) % 8 != 0; | |
| 2002 | 1461 load(addr.base(), addr.disp(), dest, dest->type(), true /*wide*/, unaligned); |
| 0 | 1462 } |
| 1463 | |
| 1464 | |
| 1465 void LIR_Assembler::reg2stack(LIR_Opr from_reg, LIR_Opr dest, BasicType type, bool pop_fpu_stack) { | |
| 1466 Address addr; | |
| 1467 if (dest->is_single_word()) { | |
| 1468 addr = frame_map()->address_for_slot(dest->single_stack_ix()); | |
| 1469 } else if (dest->is_double_word()) { | |
| 1470 addr = frame_map()->address_for_slot(dest->double_stack_ix()); | |
| 1471 } | |
| 1472 bool unaligned = (addr.disp() - STACK_BIAS) % 8 != 0; | |
| 2002 | 1473 store(from_reg, addr.base(), addr.disp(), from_reg->type(), true /*wide*/, unaligned); |
| 0 | 1474 } |
| 1475 | |
| 1476 | |
| 1477 void LIR_Assembler::reg2reg(LIR_Opr from_reg, LIR_Opr to_reg) { | |
| 1478 if (from_reg->is_float_kind() && to_reg->is_float_kind()) { | |
| 1479 if (from_reg->is_double_fpu()) { | |
| 1480 // double to double moves | |
| 1481 assert(to_reg->is_double_fpu(), "should match"); | |
| 1482 __ fmov(FloatRegisterImpl::D, from_reg->as_double_reg(), to_reg->as_double_reg()); | |
| 1483 } else { | |
| 1484 // float to float moves | |
| 1485 assert(to_reg->is_single_fpu(), "should match"); | |
| 1486 __ fmov(FloatRegisterImpl::S, from_reg->as_float_reg(), to_reg->as_float_reg()); | |
| 1487 } | |
| 1488 } else if (!from_reg->is_float_kind() && !to_reg->is_float_kind()) { | |
| 1489 if (from_reg->is_double_cpu()) { | |
| 1490 #ifdef _LP64 | |
| 1491 __ mov(from_reg->as_pointer_register(), to_reg->as_pointer_register()); | |
| 1492 #else | |
| 1493 assert(to_reg->is_double_cpu() && | |
| 1494 from_reg->as_register_hi() != to_reg->as_register_lo() && | |
| 1495 from_reg->as_register_lo() != to_reg->as_register_hi(), | |
| 1496 "should both be long and not overlap"); | |
| 1497 // long to long moves | |
| 1498 __ mov(from_reg->as_register_hi(), to_reg->as_register_hi()); | |
| 1499 __ mov(from_reg->as_register_lo(), to_reg->as_register_lo()); | |
| 1500 #endif | |
| 1501 #ifdef _LP64 | |
| 1502 } else if (to_reg->is_double_cpu()) { | |
| 1503 // int to int moves | |
| 1504 __ mov(from_reg->as_register(), to_reg->as_register_lo()); | |
| 1505 #endif | |
| 1506 } else { | |
| 1507 // int to int moves | |
| 1508 __ mov(from_reg->as_register(), to_reg->as_register()); | |
| 1509 } | |
| 1510 } else { | |
| 1511 ShouldNotReachHere(); | |
| 1512 } | |
| 1513 if (to_reg->type() == T_OBJECT || to_reg->type() == T_ARRAY) { | |
| 1514 __ verify_oop(to_reg->as_register()); | |
| 1515 } | |
| 1516 } | |
| 1517 | |
| 1518 | |
| 1519 void LIR_Assembler::reg2mem(LIR_Opr from_reg, LIR_Opr dest, BasicType type, | |
| 1520 LIR_PatchCode patch_code, CodeEmitInfo* info, bool pop_fpu_stack, | |
| 2002 | 1521 bool wide, bool unaligned) { |
|
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1522 assert(type != T_METADATA, "store of metadata ptr not supported"); |
| 0 | 1523 LIR_Address* addr = dest->as_address_ptr(); |
| 1524 | |
| 1525 Register src = addr->base()->as_pointer_register(); | |
| 1526 Register disp_reg = noreg; | |
| 1527 int disp_value = addr->disp(); | |
| 1528 bool needs_patching = (patch_code != lir_patch_none); | |
| 1529 | |
| 1530 if (addr->base()->is_oop_register()) { | |
| 1531 __ verify_oop(src); | |
| 1532 } | |
| 1533 | |
| 1534 PatchingStub* patch = NULL; | |
| 1535 if (needs_patching) { | |
| 1536 patch = new PatchingStub(_masm, PatchingStub::access_field_id); | |
| 1537 assert(!from_reg->is_double_cpu() || | |
| 1538 patch_code == lir_patch_none || | |
| 1539 patch_code == lir_patch_normal, "patching doesn't match register"); | |
| 1540 } | |
| 1541 | |
| 1542 if (addr->index()->is_illegal()) { | |
| 1543 if (!Assembler::is_simm13(disp_value) && (!unaligned || Assembler::is_simm13(disp_value + 4))) { | |
| 1544 if (needs_patching) { | |
| 727 | 1545 __ patchable_set(0, O7); |
| 0 | 1546 } else { |
| 1547 __ set(disp_value, O7); | |
| 1548 } | |
| 1549 disp_reg = O7; | |
| 1550 } | |
| 1551 } else if (unaligned || PatchALot) { | |
| 1552 __ add(src, addr->index()->as_register(), O7); | |
| 1553 src = O7; | |
| 1554 } else { | |
| 1555 disp_reg = addr->index()->as_pointer_register(); | |
| 1556 assert(disp_value == 0, "can't handle 3 operand addresses"); | |
| 1557 } | |
| 1558 | |
| 1559 // remember the offset of the store. The patching_epilog must be done | |
| 1560 // before the call to add_debug_info_for_null_check, otherwise the PcDescs don't get | |
| 1561 // entered in increasing order. | |
| 1562 int offset; | |
| 1563 | |
| 1564 assert(disp_reg != noreg || Assembler::is_simm13(disp_value), "should have set this up"); | |
| 1565 if (disp_reg == noreg) { | |
| 2002 | 1566 offset = store(from_reg, src, disp_value, type, wide, unaligned); |
| 0 | 1567 } else { |
| 1568 assert(!unaligned, "can't handle this"); | |
| 2002 | 1569 offset = store(from_reg, src, disp_reg, type, wide); |
| 0 | 1570 } |
| 1571 | |
| 1572 if (patch != NULL) { | |
| 1573 patching_epilog(patch, patch_code, src, info); | |
| 1574 } | |
| 1575 | |
| 1576 if (info != NULL) add_debug_info_for_null_check(offset, info); | |
| 1577 } | |
| 1578 | |
| 1579 | |
| 1580 void LIR_Assembler::return_op(LIR_Opr result) { | |
| 1581 // the poll may need a register so just pick one that isn't the return register | |
| 1783 | 1582 #if defined(TIERED) && !defined(_LP64) |
| 0 | 1583 if (result->type_field() == LIR_OprDesc::long_type) { |
| 1584 // Must move the result to G1 | |
| 1585 // Must leave proper result in O0,O1 and G1 (TIERED only) | |
| 1586 __ sllx(I0, 32, G1); // Shift bits into high G1 | |
| 1587 __ srl (I1, 0, I1); // Zero extend O1 (harmless?) | |
| 1588 __ or3 (I1, G1, G1); // OR 64 bits into G1 | |
| 1783 | 1589 #ifdef ASSERT |
| 1590 // mangle it so any problems will show up | |
| 1591 __ set(0xdeadbeef, I0); | |
| 1592 __ set(0xdeadbeef, I1); | |
| 1593 #endif | |
| 0 | 1594 } |
| 1595 #endif // TIERED | |
| 1596 __ set((intptr_t)os::get_polling_page(), L0); | |
| 1597 __ relocate(relocInfo::poll_return_type); | |
| 1598 __ ld_ptr(L0, 0, G0); | |
| 1599 __ ret(); | |
| 1600 __ delayed()->restore(); | |
| 1601 } | |
| 1602 | |
| 1603 | |
| 1604 int LIR_Assembler::safepoint_poll(LIR_Opr tmp, CodeEmitInfo* info) { | |
| 1605 __ set((intptr_t)os::get_polling_page(), tmp->as_register()); | |
| 1606 if (info != NULL) { | |
| 1607 add_debug_info_for_branch(info); | |
| 1608 } else { | |
| 1609 __ relocate(relocInfo::poll_type); | |
| 1610 } | |
| 1611 | |
| 1612 int offset = __ offset(); | |
| 1613 __ ld_ptr(tmp->as_register(), 0, G0); | |
| 1614 | |
| 1615 return offset; | |
| 1616 } | |
| 1617 | |
| 1618 | |
| 1619 void LIR_Assembler::emit_static_call_stub() { | |
| 1620 address call_pc = __ pc(); | |
| 1621 address stub = __ start_a_stub(call_stub_size); | |
| 1622 if (stub == NULL) { | |
| 1623 bailout("static call stub overflow"); | |
| 1624 return; | |
| 1625 } | |
| 1626 | |
| 1627 int start = __ offset(); | |
| 1628 __ relocate(static_stub_Relocation::spec(call_pc)); | |
| 1629 | |
|
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1630 __ set_metadata(NULL, G5); |
| 0 | 1631 // must be set to -1 at code generation time |
| 727 | 1632 AddressLiteral addrlit(-1); |
| 1633 __ jump_to(addrlit, G3); | |
| 0 | 1634 __ delayed()->nop(); |
| 1635 | |
| 1636 assert(__ offset() - start <= call_stub_size, "stub too big"); | |
| 1637 __ end_a_stub(); | |
| 1638 } | |
| 1639 | |
| 1640 | |
| 1641 void LIR_Assembler::comp_op(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Op2* op) { | |
| 1642 if (opr1->is_single_fpu()) { | |
| 1643 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, opr1->as_float_reg(), opr2->as_float_reg()); | |
| 1644 } else if (opr1->is_double_fpu()) { | |
| 1645 __ fcmp(FloatRegisterImpl::D, Assembler::fcc0, opr1->as_double_reg(), opr2->as_double_reg()); | |
| 1646 } else if (opr1->is_single_cpu()) { | |
| 1647 if (opr2->is_constant()) { | |
| 1648 switch (opr2->as_constant_ptr()->type()) { | |
| 1649 case T_INT: | |
| 1650 { jint con = opr2->as_constant_ptr()->as_jint(); | |
| 1651 if (Assembler::is_simm13(con)) { | |
| 1652 __ cmp(opr1->as_register(), con); | |
| 1653 } else { | |
| 1654 __ set(con, O7); | |
| 1655 __ cmp(opr1->as_register(), O7); | |
| 1656 } | |
| 1657 } | |
| 1658 break; | |
| 1659 | |
| 1660 case T_OBJECT: | |
| 1661 // there are only equal/notequal comparisions on objects | |
| 1662 { jobject con = opr2->as_constant_ptr()->as_jobject(); | |
| 1663 if (con == NULL) { | |
| 1664 __ cmp(opr1->as_register(), 0); | |
| 1665 } else { | |
| 1666 jobject2reg(con, O7); | |
| 1667 __ cmp(opr1->as_register(), O7); | |
| 1668 } | |
| 1669 } | |
| 1670 break; | |
| 1671 | |
| 1672 default: | |
| 1673 ShouldNotReachHere(); | |
| 1674 break; | |
| 1675 } | |
| 1676 } else { | |
| 1677 if (opr2->is_address()) { | |
| 1678 LIR_Address * addr = opr2->as_address_ptr(); | |
| 1679 BasicType type = addr->type(); | |
| 1680 if ( type == T_OBJECT ) __ ld_ptr(as_Address(addr), O7); | |
| 1681 else __ ld(as_Address(addr), O7); | |
| 1682 __ cmp(opr1->as_register(), O7); | |
| 1683 } else { | |
| 1684 __ cmp(opr1->as_register(), opr2->as_register()); | |
| 1685 } | |
| 1686 } | |
| 1687 } else if (opr1->is_double_cpu()) { | |
| 1688 Register xlo = opr1->as_register_lo(); | |
| 1689 Register xhi = opr1->as_register_hi(); | |
| 1690 if (opr2->is_constant() && opr2->as_jlong() == 0) { | |
| 1691 assert(condition == lir_cond_equal || condition == lir_cond_notEqual, "only handles these cases"); | |
| 1692 #ifdef _LP64 | |
| 1693 __ orcc(xhi, G0, G0); | |
| 1694 #else | |
| 1695 __ orcc(xhi, xlo, G0); | |
| 1696 #endif | |
| 1697 } else if (opr2->is_register()) { | |
| 1698 Register ylo = opr2->as_register_lo(); | |
| 1699 Register yhi = opr2->as_register_hi(); | |
| 1700 #ifdef _LP64 | |
| 1701 __ cmp(xlo, ylo); | |
| 1702 #else | |
| 1703 __ subcc(xlo, ylo, xlo); | |
| 1704 __ subccc(xhi, yhi, xhi); | |
| 1705 if (condition == lir_cond_equal || condition == lir_cond_notEqual) { | |
| 1706 __ orcc(xhi, xlo, G0); | |
| 1707 } | |
| 1708 #endif | |
| 1709 } else { | |
| 1710 ShouldNotReachHere(); | |
| 1711 } | |
| 1712 } else if (opr1->is_address()) { | |
| 1713 LIR_Address * addr = opr1->as_address_ptr(); | |
| 1714 BasicType type = addr->type(); | |
| 1715 assert (opr2->is_constant(), "Checking"); | |
| 1716 if ( type == T_OBJECT ) __ ld_ptr(as_Address(addr), O7); | |
| 1717 else __ ld(as_Address(addr), O7); | |
| 1718 __ cmp(O7, opr2->as_constant_ptr()->as_jint()); | |
| 1719 } else { | |
| 1720 ShouldNotReachHere(); | |
| 1721 } | |
| 1722 } | |
| 1723 | |
| 1724 | |
| 1725 void LIR_Assembler::comp_fl2i(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dst, LIR_Op2* op){ | |
| 1726 if (code == lir_cmp_fd2i || code == lir_ucmp_fd2i) { | |
| 1727 bool is_unordered_less = (code == lir_ucmp_fd2i); | |
| 1728 if (left->is_single_fpu()) { | |
| 1729 __ float_cmp(true, is_unordered_less ? -1 : 1, left->as_float_reg(), right->as_float_reg(), dst->as_register()); | |
| 1730 } else if (left->is_double_fpu()) { | |
| 1731 __ float_cmp(false, is_unordered_less ? -1 : 1, left->as_double_reg(), right->as_double_reg(), dst->as_register()); | |
| 1732 } else { | |
| 1733 ShouldNotReachHere(); | |
| 1734 } | |
| 1735 } else if (code == lir_cmp_l2i) { | |
| 1369 | 1736 #ifdef _LP64 |
| 1737 __ lcmp(left->as_register_lo(), right->as_register_lo(), dst->as_register()); | |
| 1738 #else | |
| 0 | 1739 __ lcmp(left->as_register_hi(), left->as_register_lo(), |
| 1740 right->as_register_hi(), right->as_register_lo(), | |
| 1741 dst->as_register()); | |
| 1369 | 1742 #endif |
| 0 | 1743 } else { |
| 1744 ShouldNotReachHere(); | |
| 1745 } | |
| 1746 } | |
| 1747 | |
| 1748 | |
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1749 void LIR_Assembler::cmove(LIR_Condition condition, LIR_Opr opr1, LIR_Opr opr2, LIR_Opr result, BasicType type) { |
| 0 | 1750 Assembler::Condition acond; |
| 1751 switch (condition) { | |
| 1752 case lir_cond_equal: acond = Assembler::equal; break; | |
| 1753 case lir_cond_notEqual: acond = Assembler::notEqual; break; | |
| 1754 case lir_cond_less: acond = Assembler::less; break; | |
| 1755 case lir_cond_lessEqual: acond = Assembler::lessEqual; break; | |
| 1756 case lir_cond_greaterEqual: acond = Assembler::greaterEqual; break; | |
| 1757 case lir_cond_greater: acond = Assembler::greater; break; | |
| 1758 case lir_cond_aboveEqual: acond = Assembler::greaterEqualUnsigned; break; | |
| 1759 case lir_cond_belowEqual: acond = Assembler::lessEqualUnsigned; break; | |
| 1760 default: ShouldNotReachHere(); | |
| 1761 }; | |
| 1762 | |
| 1763 if (opr1->is_constant() && opr1->type() == T_INT) { | |
| 1764 Register dest = result->as_register(); | |
| 1765 // load up first part of constant before branch | |
| 1766 // and do the rest in the delay slot. | |
| 1767 if (!Assembler::is_simm13(opr1->as_jint())) { | |
| 1768 __ sethi(opr1->as_jint(), dest); | |
| 1769 } | |
| 1770 } else if (opr1->is_constant()) { | |
| 1771 const2reg(opr1, result, lir_patch_none, NULL); | |
| 1772 } else if (opr1->is_register()) { | |
| 1773 reg2reg(opr1, result); | |
| 1774 } else if (opr1->is_stack()) { | |
| 1775 stack2reg(opr1, result, result->type()); | |
| 1776 } else { | |
| 1777 ShouldNotReachHere(); | |
| 1778 } | |
| 1779 Label skip; | |
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1780 #ifdef _LP64 |
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1781 if (type == T_INT) { |
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1782 __ br(acond, false, Assembler::pt, skip); |
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1783 } else |
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1784 #endif |
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1785 __ brx(acond, false, Assembler::pt, skip); // checks icc on 32bit and xcc on 64bit |
| 0 | 1786 if (opr1->is_constant() && opr1->type() == T_INT) { |
| 1787 Register dest = result->as_register(); | |
| 1788 if (Assembler::is_simm13(opr1->as_jint())) { | |
| 1789 __ delayed()->or3(G0, opr1->as_jint(), dest); | |
| 1790 } else { | |
| 1791 // the sethi has been done above, so just put in the low 10 bits | |
| 1792 __ delayed()->or3(dest, opr1->as_jint() & 0x3ff, dest); | |
| 1793 } | |
| 1794 } else { | |
| 1795 // can't do anything useful in the delay slot | |
| 1796 __ delayed()->nop(); | |
| 1797 } | |
| 1798 if (opr2->is_constant()) { | |
| 1799 const2reg(opr2, result, lir_patch_none, NULL); | |
| 1800 } else if (opr2->is_register()) { | |
| 1801 reg2reg(opr2, result); | |
| 1802 } else if (opr2->is_stack()) { | |
| 1803 stack2reg(opr2, result, result->type()); | |
| 1804 } else { | |
| 1805 ShouldNotReachHere(); | |
| 1806 } | |
| 1807 __ bind(skip); | |
| 1808 } | |
| 1809 | |
| 1810 | |
| 1811 void LIR_Assembler::arith_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest, CodeEmitInfo* info, bool pop_fpu_stack) { | |
| 1812 assert(info == NULL, "unused on this code path"); | |
| 1813 assert(left->is_register(), "wrong items state"); | |
| 1814 assert(dest->is_register(), "wrong items state"); | |
| 1815 | |
| 1816 if (right->is_register()) { | |
| 1817 if (dest->is_float_kind()) { | |
| 1818 | |
| 1819 FloatRegister lreg, rreg, res; | |
| 1820 FloatRegisterImpl::Width w; | |
| 1821 if (right->is_single_fpu()) { | |
| 1822 w = FloatRegisterImpl::S; | |
| 1823 lreg = left->as_float_reg(); | |
| 1824 rreg = right->as_float_reg(); | |
| 1825 res = dest->as_float_reg(); | |
| 1826 } else { | |
| 1827 w = FloatRegisterImpl::D; | |
| 1828 lreg = left->as_double_reg(); | |
| 1829 rreg = right->as_double_reg(); | |
| 1830 res = dest->as_double_reg(); | |
| 1831 } | |
| 1832 | |
| 1833 switch (code) { | |
| 1834 case lir_add: __ fadd(w, lreg, rreg, res); break; | |
| 1835 case lir_sub: __ fsub(w, lreg, rreg, res); break; | |
| 1836 case lir_mul: // fall through | |
| 1837 case lir_mul_strictfp: __ fmul(w, lreg, rreg, res); break; | |
| 1838 case lir_div: // fall through | |
| 1839 case lir_div_strictfp: __ fdiv(w, lreg, rreg, res); break; | |
| 1840 default: ShouldNotReachHere(); | |
| 1841 } | |
| 1842 | |
| 1843 } else if (dest->is_double_cpu()) { | |
| 1844 #ifdef _LP64 | |
| 1845 Register dst_lo = dest->as_register_lo(); | |
| 1846 Register op1_lo = left->as_pointer_register(); | |
| 1847 Register op2_lo = right->as_pointer_register(); | |
| 1848 | |
| 1849 switch (code) { | |
| 1850 case lir_add: | |
| 1851 __ add(op1_lo, op2_lo, dst_lo); | |
| 1852 break; | |
| 1853 | |
| 1854 case lir_sub: | |
| 1855 __ sub(op1_lo, op2_lo, dst_lo); | |
| 1856 break; | |
| 1857 | |
| 1858 default: ShouldNotReachHere(); | |
| 1859 } | |
| 1860 #else | |
| 1861 Register op1_lo = left->as_register_lo(); | |
| 1862 Register op1_hi = left->as_register_hi(); | |
| 1863 Register op2_lo = right->as_register_lo(); | |
| 1864 Register op2_hi = right->as_register_hi(); | |
| 1865 Register dst_lo = dest->as_register_lo(); | |
| 1866 Register dst_hi = dest->as_register_hi(); | |
| 1867 | |
| 1868 switch (code) { | |
| 1869 case lir_add: | |
| 1870 __ addcc(op1_lo, op2_lo, dst_lo); | |
| 1871 __ addc (op1_hi, op2_hi, dst_hi); | |
| 1872 break; | |
| 1873 | |
| 1874 case lir_sub: | |
| 1875 __ subcc(op1_lo, op2_lo, dst_lo); | |
| 1876 __ subc (op1_hi, op2_hi, dst_hi); | |
| 1877 break; | |
| 1878 | |
| 1879 default: ShouldNotReachHere(); | |
| 1880 } | |
| 1881 #endif | |
| 1882 } else { | |
| 1883 assert (right->is_single_cpu(), "Just Checking"); | |
| 1884 | |
| 1885 Register lreg = left->as_register(); | |
| 1886 Register res = dest->as_register(); | |
| 1887 Register rreg = right->as_register(); | |
| 1888 switch (code) { | |
| 1889 case lir_add: __ add (lreg, rreg, res); break; | |
| 1890 case lir_sub: __ sub (lreg, rreg, res); break; | |
| 1891 case lir_mul: __ mult (lreg, rreg, res); break; | |
| 1892 default: ShouldNotReachHere(); | |
| 1893 } | |
| 1894 } | |
| 1895 } else { | |
| 1896 assert (right->is_constant(), "must be constant"); | |
| 1897 | |
| 1898 if (dest->is_single_cpu()) { | |
| 1899 Register lreg = left->as_register(); | |
| 1900 Register res = dest->as_register(); | |
| 1901 int simm13 = right->as_constant_ptr()->as_jint(); | |
| 1902 | |
| 1903 switch (code) { | |
| 1904 case lir_add: __ add (lreg, simm13, res); break; | |
| 1905 case lir_sub: __ sub (lreg, simm13, res); break; | |
| 1906 case lir_mul: __ mult (lreg, simm13, res); break; | |
| 1907 default: ShouldNotReachHere(); | |
| 1908 } | |
| 1909 } else { | |
| 1910 Register lreg = left->as_pointer_register(); | |
| 1911 Register res = dest->as_register_lo(); | |
| 1912 long con = right->as_constant_ptr()->as_jlong(); | |
| 1913 assert(Assembler::is_simm13(con), "must be simm13"); | |
| 1914 | |
| 1915 switch (code) { | |
| 1916 case lir_add: __ add (lreg, (int)con, res); break; | |
| 1917 case lir_sub: __ sub (lreg, (int)con, res); break; | |
| 1918 case lir_mul: __ mult (lreg, (int)con, res); break; | |
| 1919 default: ShouldNotReachHere(); | |
| 1920 } | |
| 1921 } | |
| 1922 } | |
| 1923 } | |
| 1924 | |
| 1925 | |
| 1926 void LIR_Assembler::fpop() { | |
| 1927 // do nothing | |
| 1928 } | |
| 1929 | |
| 1930 | |
| 1931 void LIR_Assembler::intrinsic_op(LIR_Code code, LIR_Opr value, LIR_Opr thread, LIR_Opr dest, LIR_Op* op) { | |
| 1932 switch (code) { | |
| 1933 case lir_sin: | |
| 1934 case lir_tan: | |
| 1935 case lir_cos: { | |
| 1936 assert(thread->is_valid(), "preserve the thread object for performance reasons"); | |
| 1937 assert(dest->as_double_reg() == F0, "the result will be in f0/f1"); | |
| 1938 break; | |
| 1939 } | |
| 1940 case lir_sqrt: { | |
| 1941 assert(!thread->is_valid(), "there is no need for a thread_reg for dsqrt"); | |
| 1942 FloatRegister src_reg = value->as_double_reg(); | |
| 1943 FloatRegister dst_reg = dest->as_double_reg(); | |
| 1944 __ fsqrt(FloatRegisterImpl::D, src_reg, dst_reg); | |
| 1945 break; | |
| 1946 } | |
| 1947 case lir_abs: { | |
| 1948 assert(!thread->is_valid(), "there is no need for a thread_reg for fabs"); | |
| 1949 FloatRegister src_reg = value->as_double_reg(); | |
| 1950 FloatRegister dst_reg = dest->as_double_reg(); | |
| 1951 __ fabs(FloatRegisterImpl::D, src_reg, dst_reg); | |
| 1952 break; | |
| 1953 } | |
| 1954 default: { | |
| 1955 ShouldNotReachHere(); | |
| 1956 break; | |
| 1957 } | |
| 1958 } | |
| 1959 } | |
| 1960 | |
| 1961 | |
| 1962 void LIR_Assembler::logic_op(LIR_Code code, LIR_Opr left, LIR_Opr right, LIR_Opr dest) { | |
| 1963 if (right->is_constant()) { | |
| 1964 if (dest->is_single_cpu()) { | |
| 1965 int simm13 = right->as_constant_ptr()->as_jint(); | |
| 1966 switch (code) { | |
| 1967 case lir_logic_and: __ and3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1968 case lir_logic_or: __ or3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1969 case lir_logic_xor: __ xor3 (left->as_register(), simm13, dest->as_register()); break; | |
| 1970 default: ShouldNotReachHere(); | |
| 1971 } | |
| 1972 } else { | |
| 1973 long c = right->as_constant_ptr()->as_jlong(); | |
| 1974 assert(c == (int)c && Assembler::is_simm13(c), "out of range"); | |
| 1975 int simm13 = (int)c; | |
| 1976 switch (code) { | |
| 1977 case lir_logic_and: | |
| 1978 #ifndef _LP64 | |
| 1979 __ and3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 1980 #endif | |
| 1981 __ and3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 1982 break; | |
| 1983 | |
| 1984 case lir_logic_or: | |
| 1985 #ifndef _LP64 | |
| 1986 __ or3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 1987 #endif | |
| 1988 __ or3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 1989 break; | |
| 1990 | |
| 1991 case lir_logic_xor: | |
| 1992 #ifndef _LP64 | |
| 1993 __ xor3 (left->as_register_hi(), 0, dest->as_register_hi()); | |
| 1994 #endif | |
| 1995 __ xor3 (left->as_register_lo(), simm13, dest->as_register_lo()); | |
| 1996 break; | |
| 1997 | |
| 1998 default: ShouldNotReachHere(); | |
| 1999 } | |
| 2000 } | |
| 2001 } else { | |
| 2002 assert(right->is_register(), "right should be in register"); | |
| 2003 | |
| 2004 if (dest->is_single_cpu()) { | |
| 2005 switch (code) { | |
| 2006 case lir_logic_and: __ and3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2007 case lir_logic_or: __ or3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2008 case lir_logic_xor: __ xor3 (left->as_register(), right->as_register(), dest->as_register()); break; | |
| 2009 default: ShouldNotReachHere(); | |
| 2010 } | |
| 2011 } else { | |
| 2012 #ifdef _LP64 | |
| 2013 Register l = (left->is_single_cpu() && left->is_oop_register()) ? left->as_register() : | |
| 2014 left->as_register_lo(); | |
| 2015 Register r = (right->is_single_cpu() && right->is_oop_register()) ? right->as_register() : | |
| 2016 right->as_register_lo(); | |
| 2017 | |
| 2018 switch (code) { | |
| 2019 case lir_logic_and: __ and3 (l, r, dest->as_register_lo()); break; | |
| 2020 case lir_logic_or: __ or3 (l, r, dest->as_register_lo()); break; | |
| 2021 case lir_logic_xor: __ xor3 (l, r, dest->as_register_lo()); break; | |
| 2022 default: ShouldNotReachHere(); | |
| 2023 } | |
| 2024 #else | |
| 2025 switch (code) { | |
| 2026 case lir_logic_and: | |
| 2027 __ and3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2028 __ and3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2029 break; | |
| 2030 | |
| 2031 case lir_logic_or: | |
| 2032 __ or3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2033 __ or3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2034 break; | |
| 2035 | |
| 2036 case lir_logic_xor: | |
| 2037 __ xor3 (left->as_register_hi(), right->as_register_hi(), dest->as_register_hi()); | |
| 2038 __ xor3 (left->as_register_lo(), right->as_register_lo(), dest->as_register_lo()); | |
| 2039 break; | |
| 2040 | |
| 2041 default: ShouldNotReachHere(); | |
| 2042 } | |
| 2043 #endif | |
| 2044 } | |
| 2045 } | |
| 2046 } | |
| 2047 | |
| 2048 | |
| 2049 int LIR_Assembler::shift_amount(BasicType t) { | |
|
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2050 int elem_size = type2aelembytes(t); |
| 0 | 2051 switch (elem_size) { |
| 2052 case 1 : return 0; | |
| 2053 case 2 : return 1; | |
| 2054 case 4 : return 2; | |
| 2055 case 8 : return 3; | |
| 2056 } | |
| 2057 ShouldNotReachHere(); | |
| 2058 return -1; | |
| 2059 } | |
| 2060 | |
| 2061 | |
|
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2062 void LIR_Assembler::throw_op(LIR_Opr exceptionPC, LIR_Opr exceptionOop, CodeEmitInfo* info) { |
| 0 | 2063 assert(exceptionOop->as_register() == Oexception, "should match"); |
|
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2064 assert(exceptionPC->as_register() == Oissuing_pc, "should match"); |
| 0 | 2065 |
| 2066 info->add_register_oop(exceptionOop); | |
| 2067 | |
|
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2068 // reuse the debug info from the safepoint poll for the throw op itself |
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2069 address pc_for_athrow = __ pc(); |
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2070 int pc_for_athrow_offset = __ offset(); |
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2071 RelocationHolder rspec = internal_word_Relocation::spec(pc_for_athrow); |
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2072 __ set(pc_for_athrow, Oissuing_pc, rspec); |
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2073 add_call_info(pc_for_athrow_offset, info); // for exception handler |
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2074 |
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2075 __ call(Runtime1::entry_for(Runtime1::handle_exception_id), relocInfo::runtime_call_type); |
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2076 __ delayed()->nop(); |
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2077 } |
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2078 |
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2079 |
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2080 void LIR_Assembler::unwind_op(LIR_Opr exceptionOop) { |
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2081 assert(exceptionOop->as_register() == Oexception, "should match"); |
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2082 |
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2083 __ br(Assembler::always, false, Assembler::pt, _unwind_handler_entry); |
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2084 __ delayed()->nop(); |
| 0 | 2085 } |
| 2086 | |
| 2087 void LIR_Assembler::emit_arraycopy(LIR_OpArrayCopy* op) { | |
| 2088 Register src = op->src()->as_register(); | |
| 2089 Register dst = op->dst()->as_register(); | |
| 2090 Register src_pos = op->src_pos()->as_register(); | |
| 2091 Register dst_pos = op->dst_pos()->as_register(); | |
| 2092 Register length = op->length()->as_register(); | |
| 2093 Register tmp = op->tmp()->as_register(); | |
| 2094 Register tmp2 = O7; | |
| 2095 | |
| 2096 int flags = op->flags(); | |
| 2097 ciArrayKlass* default_type = op->expected_type(); | |
| 2098 BasicType basic_type = default_type != NULL ? default_type->element_type()->basic_type() : T_ILLEGAL; | |
| 2099 if (basic_type == T_ARRAY) basic_type = T_OBJECT; | |
| 2100 | |
|
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2101 #ifdef _LP64 |
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2102 // higher 32bits must be null |
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2103 __ sra(dst_pos, 0, dst_pos); |
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2104 __ sra(src_pos, 0, src_pos); |
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2105 __ sra(length, 0, length); |
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2106 #endif |
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2107 |
| 0 | 2108 // set up the arraycopy stub information |
| 2109 ArrayCopyStub* stub = op->stub(); | |
| 2110 | |
| 2111 // always do stub if no type information is available. it's ok if | |
| 2112 // the known type isn't loaded since the code sanity checks | |
| 2113 // in debug mode and the type isn't required when we know the exact type | |
| 2114 // also check that the type is an array type. | |
| 2446 | 2115 if (op->expected_type() == NULL) { |
| 0 | 2116 __ mov(src, O0); |
| 2117 __ mov(src_pos, O1); | |
| 2118 __ mov(dst, O2); | |
| 2119 __ mov(dst_pos, O3); | |
| 2120 __ mov(length, O4); | |
| 2446 | 2121 address copyfunc_addr = StubRoutines::generic_arraycopy(); |
| 2122 | |
| 2123 if (copyfunc_addr == NULL) { // Use C version if stub was not generated | |
| 2124 __ call_VM_leaf(tmp, CAST_FROM_FN_PTR(address, Runtime1::arraycopy)); | |
| 2125 } else { | |
| 2126 #ifndef PRODUCT | |
| 2127 if (PrintC1Statistics) { | |
| 2128 address counter = (address)&Runtime1::_generic_arraycopystub_cnt; | |
| 2129 __ inc_counter(counter, G1, G3); | |
| 2130 } | |
| 2131 #endif | |
| 2132 __ call_VM_leaf(tmp, copyfunc_addr); | |
| 2133 } | |
| 2134 | |
| 2135 if (copyfunc_addr != NULL) { | |
| 2136 __ xor3(O0, -1, tmp); | |
| 2137 __ sub(length, tmp, length); | |
| 2138 __ add(src_pos, tmp, src_pos); | |
| 3839 | 2139 __ cmp_zero_and_br(Assembler::less, O0, *stub->entry()); |
| 2446 | 2140 __ delayed()->add(dst_pos, tmp, dst_pos); |
| 2141 } else { | |
| 3839 | 2142 __ cmp_zero_and_br(Assembler::less, O0, *stub->entry()); |
| 2446 | 2143 __ delayed()->nop(); |
| 2144 } | |
| 0 | 2145 __ bind(*stub->continuation()); |
| 2146 return; | |
| 2147 } | |
| 2148 | |
| 2149 assert(default_type != NULL && default_type->is_array_klass(), "must be true at this point"); | |
| 2150 | |
| 2151 // make sure src and dst are non-null and load array length | |
| 2152 if (flags & LIR_OpArrayCopy::src_null_check) { | |
| 2153 __ tst(src); | |
| 2002 | 2154 __ brx(Assembler::equal, false, Assembler::pn, *stub->entry()); |
| 0 | 2155 __ delayed()->nop(); |
| 2156 } | |
| 2157 | |
| 2158 if (flags & LIR_OpArrayCopy::dst_null_check) { | |
| 2159 __ tst(dst); | |
| 2002 | 2160 __ brx(Assembler::equal, false, Assembler::pn, *stub->entry()); |
| 0 | 2161 __ delayed()->nop(); |
| 2162 } | |
| 2163 | |
| 2164 if (flags & LIR_OpArrayCopy::src_pos_positive_check) { | |
| 2165 // test src_pos register | |
| 3839 | 2166 __ cmp_zero_and_br(Assembler::less, src_pos, *stub->entry()); |
| 0 | 2167 __ delayed()->nop(); |
| 2168 } | |
| 2169 | |
| 2170 if (flags & LIR_OpArrayCopy::dst_pos_positive_check) { | |
| 2171 // test dst_pos register | |
| 3839 | 2172 __ cmp_zero_and_br(Assembler::less, dst_pos, *stub->entry()); |
| 0 | 2173 __ delayed()->nop(); |
| 2174 } | |
| 2175 | |
| 2176 if (flags & LIR_OpArrayCopy::length_positive_check) { | |
| 2177 // make sure length isn't negative | |
| 3839 | 2178 __ cmp_zero_and_br(Assembler::less, length, *stub->entry()); |
| 0 | 2179 __ delayed()->nop(); |
| 2180 } | |
| 2181 | |
| 2182 if (flags & LIR_OpArrayCopy::src_range_check) { | |
| 2183 __ ld(src, arrayOopDesc::length_offset_in_bytes(), tmp2); | |
| 2184 __ add(length, src_pos, tmp); | |
| 2185 __ cmp(tmp2, tmp); | |
| 2186 __ br(Assembler::carrySet, false, Assembler::pn, *stub->entry()); | |
| 2187 __ delayed()->nop(); | |
| 2188 } | |
| 2189 | |
| 2190 if (flags & LIR_OpArrayCopy::dst_range_check) { | |
| 2191 __ ld(dst, arrayOopDesc::length_offset_in_bytes(), tmp2); | |
| 2192 __ add(length, dst_pos, tmp); | |
| 2193 __ cmp(tmp2, tmp); | |
| 2194 __ br(Assembler::carrySet, false, Assembler::pn, *stub->entry()); | |
| 2195 __ delayed()->nop(); | |
| 2196 } | |
| 2197 | |
| 2446 | 2198 int shift = shift_amount(basic_type); |
| 2199 | |
| 0 | 2200 if (flags & LIR_OpArrayCopy::type_check) { |
| 2446 | 2201 // We don't know the array types are compatible |
| 2202 if (basic_type != T_OBJECT) { | |
| 2203 // Simple test for basic type arrays | |
|
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2204 if (UseCompressedKlassPointers) { |
| 2446 | 2205 // We don't need decode because we just need to compare |
| 2206 __ lduw(src, oopDesc::klass_offset_in_bytes(), tmp); | |
| 2207 __ lduw(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2208 __ cmp(tmp, tmp2); | |
| 2209 __ br(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2210 } else { | |
| 2211 __ ld_ptr(src, oopDesc::klass_offset_in_bytes(), tmp); | |
| 2212 __ ld_ptr(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2213 __ cmp(tmp, tmp2); | |
| 2214 __ brx(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2215 } | |
| 2216 __ delayed()->nop(); | |
| 2002 | 2217 } else { |
| 2446 | 2218 // For object arrays, if src is a sub class of dst then we can |
| 2219 // safely do the copy. | |
| 2220 address copyfunc_addr = StubRoutines::checkcast_arraycopy(); | |
| 2221 | |
| 2222 Label cont, slow; | |
| 2223 assert_different_registers(tmp, tmp2, G3, G1); | |
| 2224 | |
| 2225 __ load_klass(src, G3); | |
| 2226 __ load_klass(dst, G1); | |
| 2227 | |
| 2228 __ check_klass_subtype_fast_path(G3, G1, tmp, tmp2, &cont, copyfunc_addr == NULL ? stub->entry() : &slow, NULL); | |
| 2229 | |
| 2230 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); | |
| 2231 __ delayed()->nop(); | |
| 2232 | |
| 2233 __ cmp(G3, 0); | |
| 2234 if (copyfunc_addr != NULL) { // use stub if available | |
| 2235 // src is not a sub class of dst so we have to do a | |
| 2236 // per-element check. | |
| 2237 __ br(Assembler::notEqual, false, Assembler::pt, cont); | |
| 2238 __ delayed()->nop(); | |
| 2239 | |
| 2240 __ bind(slow); | |
| 2241 | |
| 2242 int mask = LIR_OpArrayCopy::src_objarray|LIR_OpArrayCopy::dst_objarray; | |
| 2243 if ((flags & mask) != mask) { | |
| 2244 // Check that at least both of them object arrays. | |
| 2245 assert(flags & mask, "one of the two should be known to be an object array"); | |
| 2246 | |
| 2247 if (!(flags & LIR_OpArrayCopy::src_objarray)) { | |
| 2248 __ load_klass(src, tmp); | |
| 2249 } else if (!(flags & LIR_OpArrayCopy::dst_objarray)) { | |
| 2250 __ load_klass(dst, tmp); | |
| 2251 } | |
|
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|
2252 int lh_offset = in_bytes(Klass::layout_helper_offset()); |
| 2446 | 2253 |
| 2254 __ lduw(tmp, lh_offset, tmp2); | |
| 2255 | |
| 2256 jint objArray_lh = Klass::array_layout_helper(T_OBJECT); | |
| 2257 __ set(objArray_lh, tmp); | |
| 2258 __ cmp(tmp, tmp2); | |
| 2259 __ br(Assembler::notEqual, false, Assembler::pt, *stub->entry()); | |
| 2260 __ delayed()->nop(); | |
| 2261 } | |
| 2262 | |
| 2263 Register src_ptr = O0; | |
| 2264 Register dst_ptr = O1; | |
| 2265 Register len = O2; | |
| 2266 Register chk_off = O3; | |
| 2267 Register super_k = O4; | |
| 2268 | |
| 2269 __ add(src, arrayOopDesc::base_offset_in_bytes(basic_type), src_ptr); | |
| 2270 if (shift == 0) { | |
| 2271 __ add(src_ptr, src_pos, src_ptr); | |
| 2272 } else { | |
| 2273 __ sll(src_pos, shift, tmp); | |
| 2274 __ add(src_ptr, tmp, src_ptr); | |
| 2275 } | |
| 2276 | |
| 2277 __ add(dst, arrayOopDesc::base_offset_in_bytes(basic_type), dst_ptr); | |
| 2278 if (shift == 0) { | |
| 2279 __ add(dst_ptr, dst_pos, dst_ptr); | |
| 2280 } else { | |
| 2281 __ sll(dst_pos, shift, tmp); | |
| 2282 __ add(dst_ptr, tmp, dst_ptr); | |
| 2283 } | |
| 2284 __ mov(length, len); | |
| 2285 __ load_klass(dst, tmp); | |
| 2286 | |
|
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2287 int ek_offset = in_bytes(objArrayKlass::element_klass_offset()); |
| 2446 | 2288 __ ld_ptr(tmp, ek_offset, super_k); |
| 2289 | |
|
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|
2290 int sco_offset = in_bytes(Klass::super_check_offset_offset()); |
| 2446 | 2291 __ lduw(super_k, sco_offset, chk_off); |
| 2292 | |
| 2293 __ call_VM_leaf(tmp, copyfunc_addr); | |
| 2294 | |
| 2295 #ifndef PRODUCT | |
| 2296 if (PrintC1Statistics) { | |
| 2297 Label failed; | |
| 3839 | 2298 __ br_notnull_short(O0, Assembler::pn, failed); |
| 2446 | 2299 __ inc_counter((address)&Runtime1::_arraycopy_checkcast_cnt, G1, G3); |
| 2300 __ bind(failed); | |
| 2301 } | |
| 2302 #endif | |
| 2303 | |
| 2304 __ br_null(O0, false, Assembler::pt, *stub->continuation()); | |
| 2305 __ delayed()->xor3(O0, -1, tmp); | |
| 2306 | |
| 2307 #ifndef PRODUCT | |
| 2308 if (PrintC1Statistics) { | |
| 2309 __ inc_counter((address)&Runtime1::_arraycopy_checkcast_attempt_cnt, G1, G3); | |
| 2310 } | |
| 2311 #endif | |
| 2312 | |
| 2313 __ sub(length, tmp, length); | |
| 2314 __ add(src_pos, tmp, src_pos); | |
| 2315 __ br(Assembler::always, false, Assembler::pt, *stub->entry()); | |
| 2316 __ delayed()->add(dst_pos, tmp, dst_pos); | |
| 2317 | |
| 2318 __ bind(cont); | |
| 2319 } else { | |
| 2320 __ br(Assembler::equal, false, Assembler::pn, *stub->entry()); | |
| 2321 __ delayed()->nop(); | |
| 2322 __ bind(cont); | |
| 2323 } | |
| 2002 | 2324 } |
| 0 | 2325 } |
| 2326 | |
| 2327 #ifdef ASSERT | |
| 2328 if (basic_type != T_OBJECT || !(flags & LIR_OpArrayCopy::type_check)) { | |
| 2329 // Sanity check the known type with the incoming class. For the | |
| 2330 // primitive case the types must match exactly with src.klass and | |
| 2331 // dst.klass each exactly matching the default type. For the | |
| 2332 // object array case, if no type check is needed then either the | |
| 2333 // dst type is exactly the expected type and the src type is a | |
| 2334 // subtype which we can't check or src is the same array as dst | |
| 2335 // but not necessarily exactly of type default_type. | |
| 2336 Label known_ok, halt; | |
|
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2337 metadata2reg(op->expected_type()->constant_encoding(), tmp); |
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2338 if (UseCompressedKlassPointers) { |
| 2002 | 2339 // tmp holds the default type. It currently comes uncompressed after the |
| 2340 // load of a constant, so encode it. | |
| 2341 __ encode_heap_oop(tmp); | |
| 2342 // load the raw value of the dst klass, since we will be comparing | |
| 2343 // uncompressed values directly. | |
| 2344 __ lduw(dst, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 2345 if (basic_type != T_OBJECT) { | |
| 2346 __ cmp(tmp, tmp2); | |
| 2347 __ br(Assembler::notEqual, false, Assembler::pn, halt); | |
| 2348 // load the raw value of the src klass. | |
| 2349 __ delayed()->lduw(src, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 3839 | 2350 __ cmp_and_br_short(tmp, tmp2, Assembler::equal, Assembler::pn, known_ok); |
| 2002 | 2351 } else { |
| 2352 __ cmp(tmp, tmp2); | |
| 2353 __ br(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2354 __ delayed()->cmp(src, dst); | |
| 2355 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2356 __ delayed()->nop(); | |
| 2357 } | |
| 0 | 2358 } else { |
| 2002 | 2359 __ ld_ptr(dst, oopDesc::klass_offset_in_bytes(), tmp2); |
| 2360 if (basic_type != T_OBJECT) { | |
| 2361 __ cmp(tmp, tmp2); | |
| 2362 __ brx(Assembler::notEqual, false, Assembler::pn, halt); | |
| 2363 __ delayed()->ld_ptr(src, oopDesc::klass_offset_in_bytes(), tmp2); | |
| 3839 | 2364 __ cmp_and_brx_short(tmp, tmp2, Assembler::equal, Assembler::pn, known_ok); |
| 2002 | 2365 } else { |
| 2366 __ cmp(tmp, tmp2); | |
| 2367 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2368 __ delayed()->cmp(src, dst); | |
| 2369 __ brx(Assembler::equal, false, Assembler::pn, known_ok); | |
| 2370 __ delayed()->nop(); | |
| 2371 } | |
| 0 | 2372 } |
| 2373 __ bind(halt); | |
| 2374 __ stop("incorrect type information in arraycopy"); | |
| 2375 __ bind(known_ok); | |
| 2376 } | |
| 2377 #endif | |
| 2378 | |
| 2446 | 2379 #ifndef PRODUCT |
| 2380 if (PrintC1Statistics) { | |
| 2381 address counter = Runtime1::arraycopy_count_address(basic_type); | |
| 2382 __ inc_counter(counter, G1, G3); | |
| 2383 } | |
| 2384 #endif | |
| 0 | 2385 |
| 2386 Register src_ptr = O0; | |
| 2387 Register dst_ptr = O1; | |
| 2388 Register len = O2; | |
| 2389 | |
| 2390 __ add(src, arrayOopDesc::base_offset_in_bytes(basic_type), src_ptr); | |
| 2391 if (shift == 0) { | |
| 2392 __ add(src_ptr, src_pos, src_ptr); | |
| 2393 } else { | |
| 2394 __ sll(src_pos, shift, tmp); | |
| 2395 __ add(src_ptr, tmp, src_ptr); | |
| 2396 } | |
| 2397 | |
| 2398 __ add(dst, arrayOopDesc::base_offset_in_bytes(basic_type), dst_ptr); | |
| 2399 if (shift == 0) { | |
| 2400 __ add(dst_ptr, dst_pos, dst_ptr); | |
| 2401 } else { | |
| 2402 __ sll(dst_pos, shift, tmp); | |
| 2403 __ add(dst_ptr, tmp, dst_ptr); | |
| 2404 } | |
| 2405 | |
| 2446 | 2406 bool disjoint = (flags & LIR_OpArrayCopy::overlapping) == 0; |
| 2407 bool aligned = (flags & LIR_OpArrayCopy::unaligned) == 0; | |
| 2408 const char *name; | |
| 2409 address entry = StubRoutines::select_arraycopy_function(basic_type, aligned, disjoint, name, false); | |
| 2410 | |
| 2411 // arraycopy stubs takes a length in number of elements, so don't scale it. | |
| 2412 __ mov(length, len); | |
| 2413 __ call_VM_leaf(tmp, entry); | |
| 0 | 2414 |
| 2415 __ bind(*stub->continuation()); | |
| 2416 } | |
| 2417 | |
| 2418 | |
| 2419 void LIR_Assembler::shift_op(LIR_Code code, LIR_Opr left, LIR_Opr count, LIR_Opr dest, LIR_Opr tmp) { | |
| 2420 if (dest->is_single_cpu()) { | |
| 2421 #ifdef _LP64 | |
| 2422 if (left->type() == T_OBJECT) { | |
| 2423 switch (code) { | |
| 2424 case lir_shl: __ sllx (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2425 case lir_shr: __ srax (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2426 case lir_ushr: __ srl (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2427 default: ShouldNotReachHere(); | |
| 2428 } | |
| 2429 } else | |
| 2430 #endif | |
| 2431 switch (code) { | |
| 2432 case lir_shl: __ sll (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2433 case lir_shr: __ sra (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2434 case lir_ushr: __ srl (left->as_register(), count->as_register(), dest->as_register()); break; | |
| 2435 default: ShouldNotReachHere(); | |
| 2436 } | |
| 2437 } else { | |
| 2438 #ifdef _LP64 | |
| 2439 switch (code) { | |
| 2440 case lir_shl: __ sllx (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2441 case lir_shr: __ srax (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2442 case lir_ushr: __ srlx (left->as_register_lo(), count->as_register(), dest->as_register_lo()); break; | |
| 2443 default: ShouldNotReachHere(); | |
| 2444 } | |
| 2445 #else | |
| 2446 switch (code) { | |
| 2447 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; | |
| 2448 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; | |
| 2449 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; | |
| 2450 default: ShouldNotReachHere(); | |
| 2451 } | |
| 2452 #endif | |
| 2453 } | |
| 2454 } | |
| 2455 | |
| 2456 | |
| 2457 void LIR_Assembler::shift_op(LIR_Code code, LIR_Opr left, jint count, LIR_Opr dest) { | |
| 2458 #ifdef _LP64 | |
| 2459 if (left->type() == T_OBJECT) { | |
| 2460 count = count & 63; // shouldn't shift by more than sizeof(intptr_t) | |
| 2461 Register l = left->as_register(); | |
| 2462 Register d = dest->as_register_lo(); | |
| 2463 switch (code) { | |
| 2464 case lir_shl: __ sllx (l, count, d); break; | |
| 2465 case lir_shr: __ srax (l, count, d); break; | |
| 2466 case lir_ushr: __ srlx (l, count, d); break; | |
| 2467 default: ShouldNotReachHere(); | |
| 2468 } | |
| 2469 return; | |
| 2470 } | |
| 2471 #endif | |
| 2472 | |
| 2473 if (dest->is_single_cpu()) { | |
| 2474 count = count & 0x1F; // Java spec | |
| 2475 switch (code) { | |
| 2476 case lir_shl: __ sll (left->as_register(), count, dest->as_register()); break; | |
| 2477 case lir_shr: __ sra (left->as_register(), count, dest->as_register()); break; | |
| 2478 case lir_ushr: __ srl (left->as_register(), count, dest->as_register()); break; | |
| 2479 default: ShouldNotReachHere(); | |
| 2480 } | |
| 2481 } else if (dest->is_double_cpu()) { | |
| 2482 count = count & 63; // Java spec | |
| 2483 switch (code) { | |
| 2484 case lir_shl: __ sllx (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2485 case lir_shr: __ srax (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2486 case lir_ushr: __ srlx (left->as_pointer_register(), count, dest->as_pointer_register()); break; | |
| 2487 default: ShouldNotReachHere(); | |
| 2488 } | |
| 2489 } else { | |
| 2490 ShouldNotReachHere(); | |
| 2491 } | |
| 2492 } | |
| 2493 | |
| 2494 | |
| 2495 void LIR_Assembler::emit_alloc_obj(LIR_OpAllocObj* op) { | |
| 2496 assert(op->tmp1()->as_register() == G1 && | |
| 2497 op->tmp2()->as_register() == G3 && | |
| 2498 op->tmp3()->as_register() == G4 && | |
| 2499 op->obj()->as_register() == O0 && | |
| 2500 op->klass()->as_register() == G5, "must be"); | |
| 2501 if (op->init_check()) { | |
|
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2502 __ ldub(op->klass()->as_register(), |
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2503 in_bytes(InstanceKlass::init_state_offset()), |
| 0 | 2504 op->tmp1()->as_register()); |
| 2505 add_debug_info_for_null_check_here(op->stub()->info()); | |
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2506 __ cmp(op->tmp1()->as_register(), InstanceKlass::fully_initialized); |
| 0 | 2507 __ br(Assembler::notEqual, false, Assembler::pn, *op->stub()->entry()); |
| 2508 __ delayed()->nop(); | |
| 2509 } | |
| 2510 __ allocate_object(op->obj()->as_register(), | |
| 2511 op->tmp1()->as_register(), | |
| 2512 op->tmp2()->as_register(), | |
| 2513 op->tmp3()->as_register(), | |
| 2514 op->header_size(), | |
| 2515 op->object_size(), | |
| 2516 op->klass()->as_register(), | |
| 2517 *op->stub()->entry()); | |
| 2518 __ bind(*op->stub()->continuation()); | |
| 2519 __ verify_oop(op->obj()->as_register()); | |
| 2520 } | |
| 2521 | |
| 2522 | |
| 2523 void LIR_Assembler::emit_alloc_array(LIR_OpAllocArray* op) { | |
| 2524 assert(op->tmp1()->as_register() == G1 && | |
| 2525 op->tmp2()->as_register() == G3 && | |
| 2526 op->tmp3()->as_register() == G4 && | |
| 2527 op->tmp4()->as_register() == O1 && | |
| 2528 op->klass()->as_register() == G5, "must be"); | |
|
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2529 |
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2530 LP64_ONLY( __ signx(op->len()->as_register()); ) |
| 0 | 2531 if (UseSlowPath || |
| 2532 (!UseFastNewObjectArray && (op->type() == T_OBJECT || op->type() == T_ARRAY)) || | |
| 2533 (!UseFastNewTypeArray && (op->type() != T_OBJECT && op->type() != T_ARRAY))) { | |
|
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2534 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); |
| 0 | 2535 __ delayed()->nop(); |
| 2536 } else { | |
| 2537 __ allocate_array(op->obj()->as_register(), | |
| 2538 op->len()->as_register(), | |
| 2539 op->tmp1()->as_register(), | |
| 2540 op->tmp2()->as_register(), | |
| 2541 op->tmp3()->as_register(), | |
| 2542 arrayOopDesc::header_size(op->type()), | |
|
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|
2543 type2aelembytes(op->type()), |
| 0 | 2544 op->klass()->as_register(), |
| 2545 *op->stub()->entry()); | |
| 2546 } | |
| 2547 __ bind(*op->stub()->continuation()); | |
| 2548 } | |
| 2549 | |
| 2550 | |
| 1783 | 2551 void LIR_Assembler::type_profile_helper(Register mdo, int mdo_offset_bias, |
| 2552 ciMethodData *md, ciProfileData *data, | |
| 2553 Register recv, Register tmp1, Label* update_done) { | |
| 2554 uint i; | |
| 2555 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 2556 Label next_test; | |
| 2557 // See if the receiver is receiver[n]. | |
| 2558 Address receiver_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_offset(i)) - | |
| 2559 mdo_offset_bias); | |
| 2560 __ ld_ptr(receiver_addr, tmp1); | |
| 2561 __ verify_oop(tmp1); | |
| 3839 | 2562 __ cmp_and_brx_short(recv, tmp1, Assembler::notEqual, Assembler::pt, next_test); |
| 1783 | 2563 Address data_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_count_offset(i)) - |
| 2564 mdo_offset_bias); | |
| 2565 __ ld_ptr(data_addr, tmp1); | |
| 2566 __ add(tmp1, DataLayout::counter_increment, tmp1); | |
| 2567 __ st_ptr(tmp1, data_addr); | |
| 3839 | 2568 __ ba(*update_done); |
| 1783 | 2569 __ delayed()->nop(); |
| 2570 __ bind(next_test); | |
| 2571 } | |
| 2572 | |
| 2573 // Didn't find receiver; find next empty slot and fill it in | |
| 2574 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 2575 Label next_test; | |
| 2576 Address recv_addr(mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_offset(i)) - | |
| 2577 mdo_offset_bias); | |
| 2002 | 2578 __ ld_ptr(recv_addr, tmp1); |
| 3839 | 2579 __ br_notnull_short(tmp1, Assembler::pt, next_test); |
| 1783 | 2580 __ st_ptr(recv, recv_addr); |
| 2581 __ set(DataLayout::counter_increment, tmp1); | |
| 2582 __ st_ptr(tmp1, mdo, md->byte_offset_of_slot(data, ReceiverTypeData::receiver_count_offset(i)) - | |
| 2583 mdo_offset_bias); | |
| 3839 | 2584 __ ba(*update_done); |
| 1783 | 2585 __ delayed()->nop(); |
| 2586 __ bind(next_test); | |
| 2587 } | |
| 2588 } | |
| 2589 | |
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2590 |
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2591 void LIR_Assembler::setup_md_access(ciMethod* method, int bci, |
|
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2592 ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias) { |
|
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2593 md = method->method_data_or_null(); |
|
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2594 assert(md != NULL, "Sanity"); |
|
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2595 data = md->bci_to_data(bci); |
|
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2596 assert(data != NULL, "need data for checkcast"); |
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2597 assert(data->is_ReceiverTypeData(), "need ReceiverTypeData for type check"); |
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2598 if (!Assembler::is_simm13(md->byte_offset_of_slot(data, DataLayout::header_offset()) + data->size_in_bytes())) { |
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2599 // The offset is large so bias the mdo by the base of the slot so |
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2600 // that the ld can use simm13s to reference the slots of the data |
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2601 mdo_offset_bias = md->byte_offset_of_slot(data, DataLayout::header_offset()); |
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2602 } |
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2603 } |
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2604 |
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2605 void LIR_Assembler::emit_typecheck_helper(LIR_OpTypeCheck *op, Label* success, Label* failure, Label* obj_is_null) { |
| 1783 | 2606 // we always need a stub for the failure case. |
| 2607 CodeStub* stub = op->stub(); | |
| 2608 Register obj = op->object()->as_register(); | |
| 2609 Register k_RInfo = op->tmp1()->as_register(); | |
| 2610 Register klass_RInfo = op->tmp2()->as_register(); | |
| 2611 Register dst = op->result_opr()->as_register(); | |
| 2612 Register Rtmp1 = op->tmp3()->as_register(); | |
| 2613 ciKlass* k = op->klass(); | |
| 2614 | |
| 2615 | |
| 2616 if (obj == k_RInfo) { | |
| 2617 k_RInfo = klass_RInfo; | |
| 2618 klass_RInfo = obj; | |
| 2619 } | |
| 2620 | |
| 2621 ciMethodData* md; | |
| 2622 ciProfileData* data; | |
| 2623 int mdo_offset_bias = 0; | |
| 2624 if (op->should_profile()) { | |
| 2625 ciMethod* method = op->profiled_method(); | |
| 2626 assert(method != NULL, "Should have method"); | |
|
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2627 setup_md_access(method, op->profiled_bci(), md, data, mdo_offset_bias); |
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2628 |
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2629 Label not_null; |
| 3839 | 2630 __ br_notnull_short(obj, Assembler::pn, not_null); |
| 1783 | 2631 Register mdo = k_RInfo; |
| 2632 Register data_val = Rtmp1; | |
|
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2633 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2634 if (mdo_offset_bias > 0) { |
| 2635 __ set(mdo_offset_bias, data_val); | |
| 2636 __ add(mdo, data_val, mdo); | |
| 2637 } | |
| 2638 Address flags_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()) - mdo_offset_bias); | |
| 2639 __ ldub(flags_addr, data_val); | |
| 2640 __ or3(data_val, BitData::null_seen_byte_constant(), data_val); | |
| 2641 __ stb(data_val, flags_addr); | |
| 3839 | 2642 __ ba(*obj_is_null); |
|
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2643 __ delayed()->nop(); |
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2644 __ bind(not_null); |
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2645 } else { |
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2646 __ br_null(obj, false, Assembler::pn, *obj_is_null); |
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2647 __ delayed()->nop(); |
| 1783 | 2648 } |
|
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2649 |
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2650 Label profile_cast_failure, profile_cast_success; |
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2651 Label *failure_target = op->should_profile() ? &profile_cast_failure : failure; |
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2652 Label *success_target = op->should_profile() ? &profile_cast_success : success; |
| 1783 | 2653 |
| 2654 // patching may screw with our temporaries on sparc, | |
| 2655 // so let's do it before loading the class | |
| 2656 if (k->is_loaded()) { | |
|
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2657 metadata2reg(k->constant_encoding(), k_RInfo); |
| 1783 | 2658 } else { |
|
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2659 klass2reg_with_patching(k_RInfo, op->info_for_patch()); |
| 1783 | 2660 } |
| 2661 assert(obj != k_RInfo, "must be different"); | |
| 2662 | |
| 2663 // get object class | |
| 2664 // not a safepoint as obj null check happens earlier | |
| 2002 | 2665 __ load_klass(obj, klass_RInfo); |
| 1783 | 2666 if (op->fast_check()) { |
| 2667 assert_different_registers(klass_RInfo, k_RInfo); | |
| 2668 __ cmp(k_RInfo, klass_RInfo); | |
| 2669 __ brx(Assembler::notEqual, false, Assembler::pt, *failure_target); | |
| 2670 __ delayed()->nop(); | |
| 2671 } else { | |
| 2672 bool need_slow_path = true; | |
| 2673 if (k->is_loaded()) { | |
|
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2674 if ((int) k->super_check_offset() != in_bytes(Klass::secondary_super_cache_offset())) |
| 1783 | 2675 need_slow_path = false; |
| 2676 // perform the fast part of the checking logic | |
| 2677 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, noreg, | |
|
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2678 (need_slow_path ? success_target : NULL), |
| 1783 | 2679 failure_target, NULL, |
| 2680 RegisterOrConstant(k->super_check_offset())); | |
| 2681 } else { | |
| 2682 // perform the fast part of the checking logic | |
|
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2683 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7, success_target, |
| 1783 | 2684 failure_target, NULL); |
| 2685 } | |
| 2686 if (need_slow_path) { | |
| 2687 // call out-of-line instance of __ check_klass_subtype_slow_path(...): | |
| 2688 assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup"); | |
| 2689 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); | |
| 2690 __ delayed()->nop(); | |
| 2691 __ cmp(G3, 0); | |
| 2692 __ br(Assembler::equal, false, Assembler::pn, *failure_target); | |
| 2693 __ delayed()->nop(); | |
|
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2694 // Fall through to success case |
| 1783 | 2695 } |
| 2696 } | |
| 2697 | |
| 2698 if (op->should_profile()) { | |
| 2699 Register mdo = klass_RInfo, recv = k_RInfo, tmp1 = Rtmp1; | |
| 2700 assert_different_registers(obj, mdo, recv, tmp1); | |
|
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2701 __ bind(profile_cast_success); |
|
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2702 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2703 if (mdo_offset_bias > 0) { |
| 2704 __ set(mdo_offset_bias, tmp1); | |
| 2705 __ add(mdo, tmp1, mdo); | |
| 2706 } | |
| 2002 | 2707 __ load_klass(obj, recv); |
|
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|
2708 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, success); |
| 1783 | 2709 // Jump over the failure case |
| 3839 | 2710 __ ba(*success); |
| 1783 | 2711 __ delayed()->nop(); |
| 2712 // Cast failure case | |
| 2713 __ bind(profile_cast_failure); | |
|
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2714 metadata2reg(md->constant_encoding(), mdo); |
| 1783 | 2715 if (mdo_offset_bias > 0) { |
| 2716 __ set(mdo_offset_bias, tmp1); | |
| 2717 __ add(mdo, tmp1, mdo); | |
| 2718 } | |
| 2719 Address data_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); | |
| 2720 __ ld_ptr(data_addr, tmp1); | |
| 2721 __ sub(tmp1, DataLayout::counter_increment, tmp1); | |
| 2722 __ st_ptr(tmp1, data_addr); | |
| 3839 | 2723 __ ba(*failure); |
| 1783 | 2724 __ delayed()->nop(); |
| 2725 } | |
| 3839 | 2726 __ ba(*success); |
|
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|
2727 __ delayed()->nop(); |
| 1783 | 2728 } |
| 2729 | |
| 0 | 2730 void LIR_Assembler::emit_opTypeCheck(LIR_OpTypeCheck* op) { |
| 2731 LIR_Code code = op->code(); | |
| 2732 if (code == lir_store_check) { | |
| 2733 Register value = op->object()->as_register(); | |
| 2734 Register array = op->array()->as_register(); | |
| 2735 Register k_RInfo = op->tmp1()->as_register(); | |
| 2736 Register klass_RInfo = op->tmp2()->as_register(); | |
| 2737 Register Rtmp1 = op->tmp3()->as_register(); | |
| 2738 | |
| 2739 __ verify_oop(value); | |
| 2740 CodeStub* stub = op->stub(); | |
|
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2741 // check if it needs to be profiled |
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2742 ciMethodData* md; |
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|
2743 ciProfileData* data; |
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2744 int mdo_offset_bias = 0; |
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2745 if (op->should_profile()) { |
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2746 ciMethod* method = op->profiled_method(); |
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2747 assert(method != NULL, "Should have method"); |
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2748 setup_md_access(method, op->profiled_bci(), md, data, mdo_offset_bias); |
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|
2749 } |
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2750 Label profile_cast_success, profile_cast_failure, done; |
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2751 Label *success_target = op->should_profile() ? &profile_cast_success : &done; |
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2752 Label *failure_target = op->should_profile() ? &profile_cast_failure : stub->entry(); |
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2753 |
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2754 if (op->should_profile()) { |
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2755 Label not_null; |
| 3839 | 2756 __ br_notnull_short(value, Assembler::pn, not_null); |
|
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2757 Register mdo = k_RInfo; |
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2758 Register data_val = Rtmp1; |
|
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2759 metadata2reg(md->constant_encoding(), mdo); |
|
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2760 if (mdo_offset_bias > 0) { |
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2761 __ set(mdo_offset_bias, data_val); |
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2762 __ add(mdo, data_val, mdo); |
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2763 } |
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2764 Address flags_addr(mdo, md->byte_offset_of_slot(data, DataLayout::flags_offset()) - mdo_offset_bias); |
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2765 __ ldub(flags_addr, data_val); |
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2766 __ or3(data_val, BitData::null_seen_byte_constant(), data_val); |
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2767 __ stb(data_val, flags_addr); |
| 3839 | 2768 __ ba_short(done); |
|
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2769 __ bind(not_null); |
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|
2770 } else { |
| 3839 | 2771 __ br_null_short(value, Assembler::pn, done); |
|
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2772 } |
| 2002 | 2773 add_debug_info_for_null_check_here(op->info_for_exception()); |
| 2774 __ load_klass(array, k_RInfo); | |
| 2775 __ load_klass(value, klass_RInfo); | |
| 0 | 2776 |
| 2777 // get instance klass | |
|
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|
2778 __ ld_ptr(Address(k_RInfo, objArrayKlass::element_klass_offset()), k_RInfo); |
|
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2779 // perform the fast part of the checking logic |
|
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2780 __ check_klass_subtype_fast_path(klass_RInfo, k_RInfo, Rtmp1, O7, success_target, failure_target, NULL); |
|
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2781 |
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2782 // call out-of-line instance of __ check_klass_subtype_slow_path(...): |
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|
2783 assert(klass_RInfo == G3 && k_RInfo == G1, "incorrect call setup"); |
| 0 | 2784 __ call(Runtime1::entry_for(Runtime1::slow_subtype_check_id), relocInfo::runtime_call_type); |
| 2785 __ delayed()->nop(); | |
| 2786 __ cmp(G3, 0); | |
|
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2787 __ br(Assembler::equal, false, Assembler::pn, *failure_target); |
| 0 | 2788 __ delayed()->nop(); |
|
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2789 // fall through to the success case |
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2790 |
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2791 if (op->should_profile()) { |
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2792 Register mdo = klass_RInfo, recv = k_RInfo, tmp1 = Rtmp1; |
|
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2793 assert_different_registers(value, mdo, recv, tmp1); |
|
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2794 __ bind(profile_cast_success); |
|
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2795 metadata2reg(md->constant_encoding(), mdo); |
|
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2796 if (mdo_offset_bias > 0) { |
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2797 __ set(mdo_offset_bias, tmp1); |
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2798 __ add(mdo, tmp1, mdo); |
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2799 } |
| 2002 | 2800 __ load_klass(value, recv); |
|
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2801 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, &done); |
| 3839 | 2802 __ ba_short(done); |
|
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2803 // Cast failure case |
|
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2804 __ bind(profile_cast_failure); |
|
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2805 metadata2reg(md->constant_encoding(), mdo); |
|
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2806 if (mdo_offset_bias > 0) { |
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2807 __ set(mdo_offset_bias, tmp1); |
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2808 __ add(mdo, tmp1, mdo); |
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2809 } |
|
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|
2810 Address data_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); |
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2811 __ ld_ptr(data_addr, tmp1); |
|
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2812 __ sub(tmp1, DataLayout::counter_increment, tmp1); |
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2813 __ st_ptr(tmp1, data_addr); |
| 3839 | 2814 __ ba(*stub->entry()); |
|
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2815 __ delayed()->nop(); |
|
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|
2816 } |
| 0 | 2817 __ bind(done); |
|
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2818 } else if (code == lir_checkcast) { |
|
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2819 Register obj = op->object()->as_register(); |
|
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2820 Register dst = op->result_opr()->as_register(); |
|
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2821 Label success; |
|
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2822 emit_typecheck_helper(op, &success, op->stub()->entry(), &success); |
|
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2823 __ bind(success); |
|
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|
2824 __ mov(obj, dst); |
| 0 | 2825 } else if (code == lir_instanceof) { |
| 2826 Register obj = op->object()->as_register(); | |
| 2827 Register dst = op->result_opr()->as_register(); | |
|
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2828 Label success, failure, done; |
|
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|
2829 emit_typecheck_helper(op, &success, &failure, &failure); |
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2830 __ bind(failure); |
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|
2831 __ set(0, dst); |
| 3839 | 2832 __ ba_short(done); |
|
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2833 __ bind(success); |
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|
2834 __ set(1, dst); |
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|
2835 __ bind(done); |
| 0 | 2836 } else { |
| 2837 ShouldNotReachHere(); | |
| 2838 } | |
| 2839 | |
| 2840 } | |
| 2841 | |
| 2842 | |
| 2843 void LIR_Assembler::emit_compare_and_swap(LIR_OpCompareAndSwap* op) { | |
| 2844 if (op->code() == lir_cas_long) { | |
| 2845 assert(VM_Version::supports_cx8(), "wrong machine"); | |
| 2846 Register addr = op->addr()->as_pointer_register(); | |
| 2847 Register cmp_value_lo = op->cmp_value()->as_register_lo(); | |
| 2848 Register cmp_value_hi = op->cmp_value()->as_register_hi(); | |
| 2849 Register new_value_lo = op->new_value()->as_register_lo(); | |
| 2850 Register new_value_hi = op->new_value()->as_register_hi(); | |
| 2851 Register t1 = op->tmp1()->as_register(); | |
| 2852 Register t2 = op->tmp2()->as_register(); | |
| 2853 #ifdef _LP64 | |
| 2854 __ mov(cmp_value_lo, t1); | |
| 2855 __ mov(new_value_lo, t2); | |
|
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|
2856 // perform the compare and swap operation |
|
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|
2857 __ casx(addr, t1, t2); |
|
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2858 // generate condition code - if the swap succeeded, t2 ("new value" reg) was |
|
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2859 // overwritten with the original value in "addr" and will be equal to t1. |
|
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|
2860 __ cmp(t1, t2); |
| 0 | 2861 #else |
| 2862 // move high and low halves of long values into single registers | |
| 2863 __ sllx(cmp_value_hi, 32, t1); // shift high half into temp reg | |
| 2864 __ srl(cmp_value_lo, 0, cmp_value_lo); // clear upper 32 bits of low half | |
| 2865 __ or3(t1, cmp_value_lo, t1); // t1 holds 64-bit compare value | |
| 2866 __ sllx(new_value_hi, 32, t2); | |
| 2867 __ srl(new_value_lo, 0, new_value_lo); | |
| 2868 __ or3(t2, new_value_lo, t2); // t2 holds 64-bit value to swap | |
| 2869 // perform the compare and swap operation | |
| 2870 __ casx(addr, t1, t2); | |
| 2871 // generate condition code - if the swap succeeded, t2 ("new value" reg) was | |
| 2872 // overwritten with the original value in "addr" and will be equal to t1. | |
|
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|
2873 // Produce icc flag for 32bit. |
|
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2874 __ sub(t1, t2, t2); |
|
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|
2875 __ srlx(t2, 32, t1); |
|
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|
2876 __ orcc(t2, t1, G0); |
|
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|
2877 #endif |
| 0 | 2878 } else if (op->code() == lir_cas_int || op->code() == lir_cas_obj) { |
| 2879 Register addr = op->addr()->as_pointer_register(); | |
| 2880 Register cmp_value = op->cmp_value()->as_register(); | |
| 2881 Register new_value = op->new_value()->as_register(); | |
| 2882 Register t1 = op->tmp1()->as_register(); | |
| 2883 Register t2 = op->tmp2()->as_register(); | |
| 2884 __ mov(cmp_value, t1); | |
| 2885 __ mov(new_value, t2); | |
| 2886 if (op->code() == lir_cas_obj) { | |
| 2002 | 2887 if (UseCompressedOops) { |
| 2888 __ encode_heap_oop(t1); | |
| 2889 __ encode_heap_oop(t2); | |
| 0 | 2890 __ cas(addr, t1, t2); |
| 2002 | 2891 } else { |
| 2010 | 2892 __ cas_ptr(addr, t1, t2); |
| 0 | 2893 } |
| 2002 | 2894 } else { |
| 2895 __ cas(addr, t1, t2); | |
| 2896 } | |
| 0 | 2897 __ cmp(t1, t2); |
| 2898 } else { | |
| 2899 Unimplemented(); | |
| 2900 } | |
| 2901 } | |
| 2902 | |
| 2903 void LIR_Assembler::set_24bit_FPU() { | |
| 2904 Unimplemented(); | |
| 2905 } | |
| 2906 | |
| 2907 | |
| 2908 void LIR_Assembler::reset_FPU() { | |
| 2909 Unimplemented(); | |
| 2910 } | |
| 2911 | |
| 2912 | |
| 2913 void LIR_Assembler::breakpoint() { | |
| 2914 __ breakpoint_trap(); | |
| 2915 } | |
| 2916 | |
| 2917 | |
| 2918 void LIR_Assembler::push(LIR_Opr opr) { | |
| 2919 Unimplemented(); | |
| 2920 } | |
| 2921 | |
| 2922 | |
| 2923 void LIR_Assembler::pop(LIR_Opr opr) { | |
| 2924 Unimplemented(); | |
| 2925 } | |
| 2926 | |
| 2927 | |
| 2928 void LIR_Assembler::monitor_address(int monitor_no, LIR_Opr dst_opr) { | |
| 2929 Address mon_addr = frame_map()->address_for_monitor_lock(monitor_no); | |
| 2930 Register dst = dst_opr->as_register(); | |
| 2931 Register reg = mon_addr.base(); | |
| 2932 int offset = mon_addr.disp(); | |
| 2933 // compute pointer to BasicLock | |
| 2934 if (mon_addr.is_simm13()) { | |
| 2935 __ add(reg, offset, dst); | |
| 2936 } else { | |
| 2937 __ set(offset, dst); | |
| 2938 __ add(dst, reg, dst); | |
| 2939 } | |
| 2940 } | |
| 2941 | |
| 2942 | |
| 2943 void LIR_Assembler::emit_lock(LIR_OpLock* op) { | |
| 2944 Register obj = op->obj_opr()->as_register(); | |
| 2945 Register hdr = op->hdr_opr()->as_register(); | |
| 2946 Register lock = op->lock_opr()->as_register(); | |
| 2947 | |
| 2948 // obj may not be an oop | |
| 2949 if (op->code() == lir_lock) { | |
| 2950 MonitorEnterStub* stub = (MonitorEnterStub*)op->stub(); | |
| 2951 if (UseFastLocking) { | |
| 2952 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 2953 // add debug info for NullPointerException only if one is possible | |
| 2954 if (op->info() != NULL) { | |
| 2955 add_debug_info_for_null_check_here(op->info()); | |
| 2956 } | |
| 2957 __ lock_object(hdr, obj, lock, op->scratch_opr()->as_register(), *op->stub()->entry()); | |
| 2958 } else { | |
| 2959 // always do slow locking | |
| 2960 // note: the slow locking code could be inlined here, however if we use | |
| 2961 // slow locking, speed doesn't matter anyway and this solution is | |
| 2962 // simpler and requires less duplicated code - additionally, the | |
| 2963 // slow locking code is the same in either case which simplifies | |
| 2964 // debugging | |
| 2965 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); | |
| 2966 __ delayed()->nop(); | |
| 2967 } | |
| 2968 } else { | |
| 2969 assert (op->code() == lir_unlock, "Invalid code, expected lir_unlock"); | |
| 2970 if (UseFastLocking) { | |
| 2971 assert(BasicLock::displaced_header_offset_in_bytes() == 0, "lock_reg must point to the displaced header"); | |
| 2972 __ unlock_object(hdr, obj, lock, *op->stub()->entry()); | |
| 2973 } else { | |
| 2974 // always do slow unlocking | |
| 2975 // note: the slow unlocking code could be inlined here, however if we use | |
| 2976 // slow unlocking, speed doesn't matter anyway and this solution is | |
| 2977 // simpler and requires less duplicated code - additionally, the | |
| 2978 // slow unlocking code is the same in either case which simplifies | |
| 2979 // debugging | |
| 2980 __ br(Assembler::always, false, Assembler::pt, *op->stub()->entry()); | |
| 2981 __ delayed()->nop(); | |
| 2982 } | |
| 2983 } | |
| 2984 __ bind(*op->stub()->continuation()); | |
| 2985 } | |
| 2986 | |
| 2987 | |
| 2988 void LIR_Assembler::emit_profile_call(LIR_OpProfileCall* op) { | |
| 2989 ciMethod* method = op->profiled_method(); | |
| 2990 int bci = op->profiled_bci(); | |
|
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|
2991 ciMethod* callee = op->profiled_callee(); |
| 0 | 2992 |
| 2993 // Update counter for all call types | |
|
2007
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diff
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|
2994 ciMethodData* md = method->method_data_or_null(); |
|
5ddfcf4b079e
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|
2995 assert(md != NULL, "Sanity"); |
| 0 | 2996 ciProfileData* data = md->bci_to_data(bci); |
| 2997 assert(data->is_CounterData(), "need CounterData for calls"); | |
| 2998 assert(op->mdo()->is_single_cpu(), "mdo must be allocated"); | |
| 1783 | 2999 Register mdo = op->mdo()->as_register(); |
| 3000 #ifdef _LP64 | |
| 3001 assert(op->tmp1()->is_double_cpu(), "tmp1 must be allocated"); | |
| 3002 Register tmp1 = op->tmp1()->as_register_lo(); | |
| 3003 #else | |
| 0 | 3004 assert(op->tmp1()->is_single_cpu(), "tmp1 must be allocated"); |
| 3005 Register tmp1 = op->tmp1()->as_register(); | |
| 1783 | 3006 #endif |
|
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|
3007 metadata2reg(md->constant_encoding(), mdo); |
| 0 | 3008 int mdo_offset_bias = 0; |
| 3009 if (!Assembler::is_simm13(md->byte_offset_of_slot(data, CounterData::count_offset()) + | |
| 3010 data->size_in_bytes())) { | |
| 3011 // The offset is large so bias the mdo by the base of the slot so | |
| 3012 // that the ld can use simm13s to reference the slots of the data | |
| 3013 mdo_offset_bias = md->byte_offset_of_slot(data, CounterData::count_offset()); | |
| 3014 __ set(mdo_offset_bias, O7); | |
| 3015 __ add(mdo, O7, mdo); | |
| 3016 } | |
| 3017 | |
| 727 | 3018 Address counter_addr(mdo, md->byte_offset_of_slot(data, CounterData::count_offset()) - mdo_offset_bias); |
| 0 | 3019 Bytecodes::Code bc = method->java_code_at_bci(bci); |
|
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|
3020 const bool callee_is_static = callee->is_loaded() && callee->is_static(); |
| 0 | 3021 // Perform additional virtual call profiling for invokevirtual and |
| 3022 // invokeinterface bytecodes | |
| 3023 if ((bc == Bytecodes::_invokevirtual || bc == Bytecodes::_invokeinterface) && | |
|
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|
3024 !callee_is_static && // required for optimized MH invokes |
| 1783 | 3025 C1ProfileVirtualCalls) { |
| 0 | 3026 assert(op->recv()->is_single_cpu(), "recv must be allocated"); |
| 3027 Register recv = op->recv()->as_register(); | |
| 3028 assert_different_registers(mdo, tmp1, recv); | |
| 3029 assert(data->is_VirtualCallData(), "need VirtualCallData for virtual calls"); | |
| 3030 ciKlass* known_klass = op->known_holder(); | |
| 1783 | 3031 if (C1OptimizeVirtualCallProfiling && known_klass != NULL) { |
| 0 | 3032 // We know the type that will be seen at this call site; we can |
|
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|
3033 // statically update the MethodData* rather than needing to do |
| 0 | 3034 // dynamic tests on the receiver type |
| 3035 | |
| 3036 // NOTE: we should probably put a lock around this search to | |
| 3037 // avoid collisions by concurrent compilations | |
| 3038 ciVirtualCallData* vc_data = (ciVirtualCallData*) data; | |
| 3039 uint i; | |
| 3040 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 3041 ciKlass* receiver = vc_data->receiver(i); | |
| 3042 if (known_klass->equals(receiver)) { | |
| 727 | 3043 Address data_addr(mdo, md->byte_offset_of_slot(data, |
| 3044 VirtualCallData::receiver_count_offset(i)) - | |
| 0 | 3045 mdo_offset_bias); |
| 1783 | 3046 __ ld_ptr(data_addr, tmp1); |
| 0 | 3047 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3048 __ st_ptr(tmp1, data_addr); |
| 0 | 3049 return; |
| 3050 } | |
| 3051 } | |
| 3052 | |
| 3053 // Receiver type not found in profile data; select an empty slot | |
| 3054 | |
| 3055 // Note that this is less efficient than it should be because it | |
| 3056 // always does a write to the receiver part of the | |
| 3057 // VirtualCallData rather than just the first time | |
| 3058 for (i = 0; i < VirtualCallData::row_limit(); i++) { | |
| 3059 ciKlass* receiver = vc_data->receiver(i); | |
| 3060 if (receiver == NULL) { | |
| 727 | 3061 Address recv_addr(mdo, md->byte_offset_of_slot(data, VirtualCallData::receiver_offset(i)) - |
| 0 | 3062 mdo_offset_bias); |
|
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|
3063 metadata2reg(known_klass->constant_encoding(), tmp1); |
| 0 | 3064 __ st_ptr(tmp1, recv_addr); |
| 727 | 3065 Address data_addr(mdo, md->byte_offset_of_slot(data, 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 } else { | |
| 2002 | 3074 __ load_klass(recv, recv); |
| 0 | 3075 Label update_done; |
| 1783 | 3076 type_profile_helper(mdo, mdo_offset_bias, md, data, recv, tmp1, &update_done); |
|
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kvn
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1204
diff
changeset
|
3077 // Receiver did not match any saved receiver and there is no empty row for it. |
|
576e77447e3c
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kvn
parents:
1204
diff
changeset
|
3078 // Increment total counter to indicate polymorphic case. |
| 1783 | 3079 __ ld_ptr(counter_addr, tmp1); |
|
1251
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1204
diff
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|
3080 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3081 __ st_ptr(tmp1, counter_addr); |
| 0 | 3082 |
| 3083 __ bind(update_done); | |
| 3084 } | |
|
1251
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|
3085 } else { |
|
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diff
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|
3086 // Static call |
| 1783 | 3087 __ ld_ptr(counter_addr, tmp1); |
|
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|
3088 __ add(tmp1, DataLayout::counter_increment, tmp1); |
| 1783 | 3089 __ st_ptr(tmp1, counter_addr); |
| 0 | 3090 } |
| 3091 } | |
| 3092 | |
| 3093 void LIR_Assembler::align_backward_branch_target() { | |
| 1365 | 3094 __ align(OptoLoopAlignment); |
| 0 | 3095 } |
| 3096 | |
| 3097 | |
| 3098 void LIR_Assembler::emit_delay(LIR_OpDelay* op) { | |
| 3099 // make sure we are expecting a delay | |
| 3100 // this has the side effect of clearing the delay state | |
| 3101 // so we can use _masm instead of _masm->delayed() to do the | |
| 3102 // code generation. | |
| 3103 __ delayed(); | |
| 3104 | |
| 3105 // make sure we only emit one instruction | |
| 3106 int offset = code_offset(); | |
| 3107 op->delay_op()->emit_code(this); | |
| 3108 #ifdef ASSERT | |
| 3109 if (code_offset() - offset != NativeInstruction::nop_instruction_size) { | |
| 3110 op->delay_op()->print(); | |
| 3111 } | |
| 3112 assert(code_offset() - offset == NativeInstruction::nop_instruction_size, | |
| 3113 "only one instruction can go in a delay slot"); | |
| 3114 #endif | |
| 3115 | |
| 3116 // we may also be emitting the call info for the instruction | |
| 3117 // which we are the delay slot of. | |
| 1564 | 3118 CodeEmitInfo* call_info = op->call_info(); |
| 0 | 3119 if (call_info) { |
| 3120 add_call_info(code_offset(), call_info); | |
| 3121 } | |
| 3122 | |
| 3123 if (VerifyStackAtCalls) { | |
| 3124 _masm->sub(FP, SP, O7); | |
| 3125 _masm->cmp(O7, initial_frame_size_in_bytes()); | |
| 3126 _masm->trap(Assembler::notEqual, Assembler::ptr_cc, G0, ST_RESERVED_FOR_USER_0+2 ); | |
| 3127 } | |
| 3128 } | |
| 3129 | |
| 3130 | |
| 3131 void LIR_Assembler::negate(LIR_Opr left, LIR_Opr dest) { | |
| 3132 assert(left->is_register(), "can only handle registers"); | |
| 3133 | |
| 3134 if (left->is_single_cpu()) { | |
| 3135 __ neg(left->as_register(), dest->as_register()); | |
| 3136 } else if (left->is_single_fpu()) { | |
| 3137 __ fneg(FloatRegisterImpl::S, left->as_float_reg(), dest->as_float_reg()); | |
| 3138 } else if (left->is_double_fpu()) { | |
| 3139 __ fneg(FloatRegisterImpl::D, left->as_double_reg(), dest->as_double_reg()); | |
| 3140 } else { | |
| 3141 assert (left->is_double_cpu(), "Must be a long"); | |
| 3142 Register Rlow = left->as_register_lo(); | |
| 3143 Register Rhi = left->as_register_hi(); | |
| 3144 #ifdef _LP64 | |
| 3145 __ sub(G0, Rlow, dest->as_register_lo()); | |
| 3146 #else | |
| 3147 __ subcc(G0, Rlow, dest->as_register_lo()); | |
| 3148 __ subc (G0, Rhi, dest->as_register_hi()); | |
| 3149 #endif | |
| 3150 } | |
| 3151 } | |
| 3152 | |
| 3153 | |
| 3154 void LIR_Assembler::fxch(int i) { | |
| 3155 Unimplemented(); | |
| 3156 } | |
| 3157 | |
| 3158 void LIR_Assembler::fld(int i) { | |
| 3159 Unimplemented(); | |
| 3160 } | |
| 3161 | |
| 3162 void LIR_Assembler::ffree(int i) { | |
| 3163 Unimplemented(); | |
| 3164 } | |
| 3165 | |
| 3166 void LIR_Assembler::rt_call(LIR_Opr result, address dest, | |
| 3167 const LIR_OprList* args, LIR_Opr tmp, CodeEmitInfo* info) { | |
| 3168 | |
| 3169 // if tmp is invalid, then the function being called doesn't destroy the thread | |
| 3170 if (tmp->is_valid()) { | |
| 3171 __ save_thread(tmp->as_register()); | |
| 3172 } | |
| 3173 __ call(dest, relocInfo::runtime_call_type); | |
| 3174 __ delayed()->nop(); | |
| 3175 if (info != NULL) { | |
| 3176 add_call_info_here(info); | |
| 3177 } | |
| 3178 if (tmp->is_valid()) { | |
| 3179 __ restore_thread(tmp->as_register()); | |
| 3180 } | |
| 3181 | |
| 3182 #ifdef ASSERT | |
| 3183 __ verify_thread(); | |
| 3184 #endif // ASSERT | |
| 3185 } | |
| 3186 | |
| 3187 | |
| 3188 void LIR_Assembler::volatile_move_op(LIR_Opr src, LIR_Opr dest, BasicType type, CodeEmitInfo* info) { | |
| 3189 #ifdef _LP64 | |
| 3190 ShouldNotReachHere(); | |
| 3191 #endif | |
| 3192 | |
| 3193 NEEDS_CLEANUP; | |
| 3194 if (type == T_LONG) { | |
| 3195 LIR_Address* mem_addr = dest->is_address() ? dest->as_address_ptr() : src->as_address_ptr(); | |
| 3196 | |
| 3197 // (extended to allow indexed as well as constant displaced for JSR-166) | |
| 3198 Register idx = noreg; // contains either constant offset or index | |
| 3199 | |
| 3200 int disp = mem_addr->disp(); | |
| 3201 if (mem_addr->index() == LIR_OprFact::illegalOpr) { | |
| 3202 if (!Assembler::is_simm13(disp)) { | |
| 3203 idx = O7; | |
| 3204 __ set(disp, idx); | |
| 3205 } | |
| 3206 } else { | |
| 3207 assert(disp == 0, "not both indexed and disp"); | |
| 3208 idx = mem_addr->index()->as_register(); | |
| 3209 } | |
| 3210 | |
| 3211 int null_check_offset = -1; | |
| 3212 | |
| 3213 Register base = mem_addr->base()->as_register(); | |
| 3214 if (src->is_register() && dest->is_address()) { | |
| 3215 // G4 is high half, G5 is low half | |
| 3216 if (VM_Version::v9_instructions_work()) { | |
| 3217 // clear the top bits of G5, and scale up G4 | |
| 3218 __ srl (src->as_register_lo(), 0, G5); | |
| 3219 __ sllx(src->as_register_hi(), 32, G4); | |
| 3220 // combine the two halves into the 64 bits of G4 | |
| 3221 __ or3(G4, G5, G4); | |
| 3222 null_check_offset = __ offset(); | |
| 3223 if (idx == noreg) { | |
| 3224 __ stx(G4, base, disp); | |
| 3225 } else { | |
| 3226 __ stx(G4, base, idx); | |
| 3227 } | |
| 3228 } else { | |
| 3229 __ mov (src->as_register_hi(), G4); | |
| 3230 __ mov (src->as_register_lo(), G5); | |
| 3231 null_check_offset = __ offset(); | |
| 3232 if (idx == noreg) { | |
| 3233 __ std(G4, base, disp); | |
| 3234 } else { | |
| 3235 __ std(G4, base, idx); | |
| 3236 } | |
| 3237 } | |
| 3238 } else if (src->is_address() && dest->is_register()) { | |
| 3239 null_check_offset = __ offset(); | |
| 3240 if (VM_Version::v9_instructions_work()) { | |
| 3241 if (idx == noreg) { | |
| 3242 __ ldx(base, disp, G5); | |
| 3243 } else { | |
| 3244 __ ldx(base, idx, G5); | |
| 3245 } | |
| 3246 __ srax(G5, 32, dest->as_register_hi()); // fetch the high half into hi | |
| 3247 __ mov (G5, dest->as_register_lo()); // copy low half into lo | |
| 3248 } else { | |
| 3249 if (idx == noreg) { | |
| 3250 __ ldd(base, disp, G4); | |
| 3251 } else { | |
| 3252 __ ldd(base, idx, G4); | |
| 3253 } | |
| 3254 // G4 is high half, G5 is low half | |
| 3255 __ mov (G4, dest->as_register_hi()); | |
| 3256 __ mov (G5, dest->as_register_lo()); | |
| 3257 } | |
| 3258 } else { | |
| 3259 Unimplemented(); | |
| 3260 } | |
| 3261 if (info != NULL) { | |
| 3262 add_debug_info_for_null_check(null_check_offset, info); | |
| 3263 } | |
| 3264 | |
| 3265 } else { | |
| 3266 // use normal move for all other volatiles since they don't need | |
| 3267 // special handling to remain atomic. | |
| 2002 | 3268 move_op(src, dest, type, lir_patch_none, info, false, false, false); |
| 0 | 3269 } |
| 3270 } | |
| 3271 | |
| 3272 void LIR_Assembler::membar() { | |
| 3273 // only StoreLoad membars are ever explicitly needed on sparcs in TSO mode | |
| 3274 __ membar( Assembler::Membar_mask_bits(Assembler::StoreLoad) ); | |
| 3275 } | |
| 3276 | |
| 3277 void LIR_Assembler::membar_acquire() { | |
| 3278 // no-op on TSO | |
| 3279 } | |
| 3280 | |
| 3281 void LIR_Assembler::membar_release() { | |
| 3282 // no-op on TSO | |
| 3283 } | |
| 3284 | |
|
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|
3285 void LIR_Assembler::membar_loadload() { |
|
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diff
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|
3286 // no-op |
|
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|
3287 //__ membar(Assembler::Membar_mask_bits(Assembler::loadload)); |
|
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diff
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|
3288 } |
|
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diff
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|
3289 |
|
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|
3290 void LIR_Assembler::membar_storestore() { |
|
701a83c86f28
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4808
diff
changeset
|
3291 // no-op |
|
701a83c86f28
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4808
diff
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|
3292 //__ membar(Assembler::Membar_mask_bits(Assembler::storestore)); |
|
701a83c86f28
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jiangli
parents:
4808
diff
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|
3293 } |
|
701a83c86f28
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diff
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|
3294 |
|
701a83c86f28
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4808
diff
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|
3295 void LIR_Assembler::membar_loadstore() { |
|
701a83c86f28
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4808
diff
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|
3296 // no-op |
|
701a83c86f28
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4808
diff
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|
3297 //__ membar(Assembler::Membar_mask_bits(Assembler::loadstore)); |
|
701a83c86f28
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4808
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|
3298 } |
|
701a83c86f28
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|
3299 |
|
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3300 void LIR_Assembler::membar_storeload() { |
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3301 __ membar(Assembler::Membar_mask_bits(Assembler::StoreLoad)); |
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3302 } |
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3303 |
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3304 |
| 1783 | 3305 // Pack two sequential registers containing 32 bit values |
| 0 | 3306 // into a single 64 bit register. |
| 1783 | 3307 // src and src->successor() are packed into dst |
| 3308 // src and dst may be the same register. | |
| 3309 // Note: src is destroyed | |
| 3310 void LIR_Assembler::pack64(LIR_Opr src, LIR_Opr dst) { | |
| 3311 Register rs = src->as_register(); | |
| 3312 Register rd = dst->as_register_lo(); | |
| 0 | 3313 __ sllx(rs, 32, rs); |
| 3314 __ srl(rs->successor(), 0, rs->successor()); | |
| 3315 __ or3(rs, rs->successor(), rd); | |
| 3316 } | |
| 3317 | |
| 1783 | 3318 // Unpack a 64 bit value in a register into |
| 0 | 3319 // two sequential registers. |
| 1783 | 3320 // src is unpacked into dst and dst->successor() |
| 3321 void LIR_Assembler::unpack64(LIR_Opr src, LIR_Opr dst) { | |
| 3322 Register rs = src->as_register_lo(); | |
| 3323 Register rd = dst->as_register_hi(); | |
| 3324 assert_different_registers(rs, rd, rd->successor()); | |
| 3325 __ srlx(rs, 32, rd); | |
| 3326 __ srl (rs, 0, rd->successor()); | |
| 0 | 3327 } |
| 3328 | |
| 3329 | |
| 3330 void LIR_Assembler::leal(LIR_Opr addr_opr, LIR_Opr dest) { | |
| 3331 LIR_Address* addr = addr_opr->as_address_ptr(); | |
| 3332 assert(addr->index()->is_illegal() && addr->scale() == LIR_Address::times_1 && Assembler::is_simm13(addr->disp()), "can't handle complex addresses yet"); | |
| 1783 | 3333 |
| 3334 __ add(addr->base()->as_pointer_register(), addr->disp(), dest->as_pointer_register()); | |
| 0 | 3335 } |
| 3336 | |
| 3337 | |
| 3338 void LIR_Assembler::get_thread(LIR_Opr result_reg) { | |
| 3339 assert(result_reg->is_register(), "check"); | |
| 3340 __ mov(G2_thread, result_reg->as_register()); | |
| 3341 } | |
| 3342 | |
| 3343 | |
| 3344 void LIR_Assembler::peephole(LIR_List* lir) { | |
| 3345 LIR_OpList* inst = lir->instructions_list(); | |
| 3346 for (int i = 0; i < inst->length(); i++) { | |
| 3347 LIR_Op* op = inst->at(i); | |
| 3348 switch (op->code()) { | |
| 3349 case lir_cond_float_branch: | |
| 3350 case lir_branch: { | |
| 3351 LIR_OpBranch* branch = op->as_OpBranch(); | |
| 3352 assert(branch->info() == NULL, "shouldn't be state on branches anymore"); | |
| 3353 LIR_Op* delay_op = NULL; | |
| 3354 // we'd like to be able to pull following instructions into | |
| 3355 // this slot but we don't know enough to do it safely yet so | |
| 3356 // only optimize block to block control flow. | |
| 3357 if (LIRFillDelaySlots && branch->block()) { | |
| 3358 LIR_Op* prev = inst->at(i - 1); | |
| 3359 if (prev && LIR_Assembler::is_single_instruction(prev) && prev->info() == NULL) { | |
| 3360 // swap previous instruction into delay slot | |
| 3361 inst->at_put(i - 1, op); | |
| 3362 inst->at_put(i, new LIR_OpDelay(prev, op->info())); | |
| 3363 #ifndef PRODUCT | |
| 3364 if (LIRTracePeephole) { | |
| 3365 tty->print_cr("delayed"); | |
| 3366 inst->at(i - 1)->print(); | |
| 3367 inst->at(i)->print(); | |
| 1564 | 3368 tty->cr(); |
| 0 | 3369 } |
| 3370 #endif | |
| 3371 continue; | |
| 3372 } | |
| 3373 } | |
| 3374 | |
| 3375 if (!delay_op) { | |
| 3376 delay_op = new LIR_OpDelay(new LIR_Op0(lir_nop), NULL); | |
| 3377 } | |
| 3378 inst->insert_before(i + 1, delay_op); | |
| 3379 break; | |
| 3380 } | |
| 3381 case lir_static_call: | |
| 3382 case lir_virtual_call: | |
| 3383 case lir_icvirtual_call: | |
| 1564 | 3384 case lir_optvirtual_call: |
| 3385 case lir_dynamic_call: { | |
| 0 | 3386 LIR_Op* prev = inst->at(i - 1); |
| 3387 if (LIRFillDelaySlots && prev && prev->code() == lir_move && prev->info() == NULL && | |
| 3388 (op->code() != lir_virtual_call || | |
| 3389 !prev->result_opr()->is_single_cpu() || | |
| 3390 prev->result_opr()->as_register() != O0) && | |
| 3391 LIR_Assembler::is_single_instruction(prev)) { | |
| 3392 // Only moves without info can be put into the delay slot. | |
| 3393 // Also don't allow the setup of the receiver in the delay | |
| 3394 // slot for vtable calls. | |
| 3395 inst->at_put(i - 1, op); | |
| 3396 inst->at_put(i, new LIR_OpDelay(prev, op->info())); | |
| 3397 #ifndef PRODUCT | |
| 3398 if (LIRTracePeephole) { | |
| 3399 tty->print_cr("delayed"); | |
| 3400 inst->at(i - 1)->print(); | |
| 3401 inst->at(i)->print(); | |
| 1564 | 3402 tty->cr(); |
| 0 | 3403 } |
| 3404 #endif | |
| 1783 | 3405 } else { |
| 3406 LIR_Op* delay_op = new LIR_OpDelay(new LIR_Op0(lir_nop), op->as_OpJavaCall()->info()); | |
| 3407 inst->insert_before(i + 1, delay_op); | |
| 3408 i++; | |
| 0 | 3409 } |
| 3410 | |
| 1783 | 3411 #if defined(TIERED) && !defined(_LP64) |
| 3412 // fixup the return value from G1 to O0/O1 for long returns. | |
| 3413 // It's done here instead of in LIRGenerator because there's | |
| 3414 // such a mismatch between the single reg and double reg | |
| 3415 // calling convention. | |
| 3416 LIR_OpJavaCall* callop = op->as_OpJavaCall(); | |
| 3417 if (callop->result_opr() == FrameMap::out_long_opr) { | |
| 3418 LIR_OpJavaCall* call; | |
| 3419 LIR_OprList* arguments = new LIR_OprList(callop->arguments()->length()); | |
| 3420 for (int a = 0; a < arguments->length(); a++) { | |
| 3421 arguments[a] = callop->arguments()[a]; | |
| 3422 } | |
| 3423 if (op->code() == lir_virtual_call) { | |
| 3424 call = new LIR_OpJavaCall(op->code(), callop->method(), callop->receiver(), FrameMap::g1_long_single_opr, | |
| 3425 callop->vtable_offset(), arguments, callop->info()); | |
| 3426 } else { | |
| 3427 call = new LIR_OpJavaCall(op->code(), callop->method(), callop->receiver(), FrameMap::g1_long_single_opr, | |
| 3428 callop->addr(), arguments, callop->info()); | |
| 3429 } | |
| 3430 inst->at_put(i - 1, call); | |
| 3431 inst->insert_before(i + 1, new LIR_Op1(lir_unpack64, FrameMap::g1_long_single_opr, callop->result_opr(), | |
| 3432 T_LONG, lir_patch_none, NULL)); | |
| 3433 } | |
| 3434 #endif | |
| 0 | 3435 break; |
| 3436 } | |
| 3437 } | |
| 3438 } | |
| 3439 } | |
| 3440 | |
| 3441 | |
| 3442 | |
| 3443 | |
| 3444 #undef __ |