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src/hotspot/cpu/aarch64/c1_FrameMap_aarch64.cpp

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   1 /*
   2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.


  28 #include "c1/c1_LIR.hpp"
  29 #include "runtime/sharedRuntime.hpp"
  30 #include "vmreg_aarch64.inline.hpp"
  31 
  32 LIR_Opr FrameMap::map_to_opr(BasicType type, VMRegPair* reg, bool) {
  33   LIR_Opr opr = LIR_OprFact::illegalOpr;
  34   VMReg r_1 = reg->first();
  35   VMReg r_2 = reg->second();
  36   if (r_1->is_stack()) {
  37     // Convert stack slot to an SP offset
  38     // The calling convention does not count the SharedRuntime::out_preserve_stack_slots() value
  39     // so we must add it in here.
  40     int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size;
  41     opr = LIR_OprFact::address(new LIR_Address(sp_opr, st_off, type));
  42   } else if (r_1->is_Register()) {
  43     Register reg = r_1->as_Register();
  44     if (r_2->is_Register() && (type == T_LONG || type == T_DOUBLE)) {
  45       Register reg2 = r_2->as_Register();
  46       assert(reg2 == reg, "must be same register");
  47       opr = as_long_opr(reg);
  48     } else if (type == T_OBJECT || type == T_ARRAY) {
  49       opr = as_oop_opr(reg);
  50     } else if (type == T_METADATA) {
  51       opr = as_metadata_opr(reg);
  52     } else {
  53       opr = as_opr(reg);
  54     }
  55   } else if (r_1->is_FloatRegister()) {
  56     assert(type == T_DOUBLE || type == T_FLOAT, "wrong type");
  57     int num = r_1->as_FloatRegister()->encoding();
  58     if (type == T_FLOAT) {
  59       opr = LIR_OprFact::single_fpu(num);
  60     } else {
  61       opr = LIR_OprFact::double_fpu(num);
  62     }
  63   } else {
  64     ShouldNotReachHere();
  65   }
  66   return opr;
  67 }
  68 


   1 /*
   2  * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.


  28 #include "c1/c1_LIR.hpp"
  29 #include "runtime/sharedRuntime.hpp"
  30 #include "vmreg_aarch64.inline.hpp"
  31 
  32 LIR_Opr FrameMap::map_to_opr(BasicType type, VMRegPair* reg, bool) {
  33   LIR_Opr opr = LIR_OprFact::illegalOpr;
  34   VMReg r_1 = reg->first();
  35   VMReg r_2 = reg->second();
  36   if (r_1->is_stack()) {
  37     // Convert stack slot to an SP offset
  38     // The calling convention does not count the SharedRuntime::out_preserve_stack_slots() value
  39     // so we must add it in here.
  40     int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size;
  41     opr = LIR_OprFact::address(new LIR_Address(sp_opr, st_off, type));
  42   } else if (r_1->is_Register()) {
  43     Register reg = r_1->as_Register();
  44     if (r_2->is_Register() && (type == T_LONG || type == T_DOUBLE)) {
  45       Register reg2 = r_2->as_Register();
  46       assert(reg2 == reg, "must be same register");
  47       opr = as_long_opr(reg);
  48     } else if (is_reference_type(type)) {
  49       opr = as_oop_opr(reg);
  50     } else if (type == T_METADATA) {
  51       opr = as_metadata_opr(reg);
  52     } else {
  53       opr = as_opr(reg);
  54     }
  55   } else if (r_1->is_FloatRegister()) {
  56     assert(type == T_DOUBLE || type == T_FLOAT, "wrong type");
  57     int num = r_1->as_FloatRegister()->encoding();
  58     if (type == T_FLOAT) {
  59       opr = LIR_OprFact::single_fpu(num);
  60     } else {
  61       opr = LIR_OprFact::double_fpu(num);
  62     }
  63   } else {
  64     ShouldNotReachHere();
  65   }
  66   return opr;
  67 }
  68 


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