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src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp

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   1 /*
   2  * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
   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  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *


 252       __ move(left, tmp);
 253       __ shift_left(left, log2_jint(c - 1), left);
 254       __ add(left, tmp, result);
 255       return true;
 256     }
 257   }
 258   return false;
 259 }
 260 
 261 
 262 void LIRGenerator::store_stack_parameter (LIR_Opr item, ByteSize offset_from_sp) {
 263   BasicType type = item->type();
 264   __ store(item, new LIR_Address(FrameMap::rsp_opr, in_bytes(offset_from_sp), type));
 265 }
 266 
 267 void LIRGenerator::array_store_check(LIR_Opr value, LIR_Opr array, CodeEmitInfo* store_check_info, ciMethod* profiled_method, int profiled_bci) {
 268   LIR_Opr tmp1 = new_register(objectType);
 269   LIR_Opr tmp2 = new_register(objectType);
 270   LIR_Opr tmp3 = new_register(objectType);
 271   __ store_check(value, array, tmp1, tmp2, tmp3, store_check_info, profiled_method, profiled_bci);














 272 }
 273 
 274 //----------------------------------------------------------------------
 275 //             visitor functions
 276 //----------------------------------------------------------------------
 277 
 278 void LIRGenerator::do_MonitorEnter(MonitorEnter* x) {
 279   assert(x->is_pinned(),"");
 280   LIRItem obj(x->obj(), this);
 281   obj.load_item();
 282 
 283   set_no_result(x);
 284 
 285   // "lock" stores the address of the monitor stack slot, so this is not an oop
 286   LIR_Opr lock = new_register(T_INT);
 287   // Need a scratch register for biased locking on x86
 288   LIR_Opr scratch = LIR_OprFact::illegalOpr;
 289   if (UseBiasedLocking || x->maybe_valuetype()) {
 290     scratch = new_register(T_INT);
 291   }


   1 /*
   2  * Copyright (c) 2005, 2019, Oracle and/or its affiliates. All rights reserved.
   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  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *


 252       __ move(left, tmp);
 253       __ shift_left(left, log2_jint(c - 1), left);
 254       __ add(left, tmp, result);
 255       return true;
 256     }
 257   }
 258   return false;
 259 }
 260 
 261 
 262 void LIRGenerator::store_stack_parameter (LIR_Opr item, ByteSize offset_from_sp) {
 263   BasicType type = item->type();
 264   __ store(item, new LIR_Address(FrameMap::rsp_opr, in_bytes(offset_from_sp), type));
 265 }
 266 
 267 void LIRGenerator::array_store_check(LIR_Opr value, LIR_Opr array, CodeEmitInfo* store_check_info, ciMethod* profiled_method, int profiled_bci) {
 268   LIR_Opr tmp1 = new_register(objectType);
 269   LIR_Opr tmp2 = new_register(objectType);
 270   LIR_Opr tmp3 = new_register(objectType);
 271   __ store_check(value, array, tmp1, tmp2, tmp3, store_check_info, profiled_method, profiled_bci);
 272 }
 273 
 274 void LIRGenerator::flattened_array_store_check(LIR_Opr value, ciKlass* element_klass, CodeEmitInfo* store_check_info) {
 275   LIR_Opr tmp1 = new_register(T_METADATA);
 276   LIR_Opr tmp2 = LIR_OprFact::illegalOpr;
 277 
 278 #ifdef _LP64
 279   if (!UseCompressedClassPointers) {
 280     tmp2 = new_register(T_METADATA);
 281     __ metadata2reg(element_klass->constant_encoding(), tmp2);
 282   }
 283 #endif
 284 
 285   __ flattened_store_check(value, element_klass, tmp1, tmp2, store_check_info);
 286 }
 287 
 288 //----------------------------------------------------------------------
 289 //             visitor functions
 290 //----------------------------------------------------------------------
 291 
 292 void LIRGenerator::do_MonitorEnter(MonitorEnter* x) {
 293   assert(x->is_pinned(),"");
 294   LIRItem obj(x->obj(), this);
 295   obj.load_item();
 296 
 297   set_no_result(x);
 298 
 299   // "lock" stores the address of the monitor stack slot, so this is not an oop
 300   LIR_Opr lock = new_register(T_INT);
 301   // Need a scratch register for biased locking on x86
 302   LIR_Opr scratch = LIR_OprFact::illegalOpr;
 303   if (UseBiasedLocking || x->maybe_valuetype()) {
 304     scratch = new_register(T_INT);
 305   }


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