author | herrick |
Thu, 17 Oct 2019 07:55:35 -0400 | |
branch | JDK-8200758-branch |
changeset 58670 | 6fb9e12d5595 |
parent 53244 | 9807daeb47c4 |
child 59122 | 5d73255c2d52 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved. |
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* Copyright (c) 2016, 2017 SAP SE. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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||
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#ifndef CPU_S390_REGISTER_S390_HPP |
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#define CPU_S390_REGISTER_S390_HPP |
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#include "asm/register.hpp" |
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#include "vm_version_s390.hpp" |
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class Address; |
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class VMRegImpl; |
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typedef VMRegImpl* VMReg; |
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// z/Architecture registers, see "LINUX for zSeries ELF ABI Supplement", IBM March 2001 |
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// |
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// r0-r1 General purpose (volatile) |
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// r2 Parameter and return value (volatile) |
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// r3 TOC pointer (volatile) |
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// r3-r5 Parameters (volatile) |
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// r6 Parameter (nonvolatile) |
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// r7-r11 Locals (nonvolatile) |
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// r12 Local, often used as GOT pointer (nonvolatile) |
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// r13 Local, often used as toc (nonvolatile) |
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// r14 return address (volatile) |
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// r15 stack pointer (nonvolatile) |
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// |
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// f0,f2,f4,f6 Parameters (volatile) |
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// f1,f3,f5,f7 General purpose (volatile) |
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// f8-f15 General purpose (nonvolatile) |
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//=========================== |
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//=== Integer Registers === |
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//=========================== |
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// Use Register as shortcut. |
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class RegisterImpl; |
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typedef RegisterImpl* Register; |
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// The implementation of integer registers for z/Architecture. |
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inline Register as_Register(int encoding) { |
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return (Register)(long)encoding; |
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} |
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class RegisterImpl: public AbstractRegisterImpl { |
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public: |
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enum { |
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number_of_registers = 16, |
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number_of_arg_registers = 5 |
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}; |
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// general construction |
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inline friend Register as_Register(int encoding); |
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inline VMReg as_VMReg(); |
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// accessors |
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int encoding() const { assert(is_valid(), "invalid register"); return value(); } |
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const char* name() const; |
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// testers |
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bool is_valid() const { return (0 <= (value()&0x7F) && (value()&0x7F) < number_of_registers); } |
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bool is_even() const { return (encoding() & 1) == 0; } |
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bool is_volatile() const { return (0 <= (value()&0x7F) && (value()&0x7F) <= 5) || (value()&0x7F)==14; } |
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bool is_nonvolatile() const { return is_valid() && !is_volatile(); } |
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public: |
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// derived registers, offsets, and addresses |
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Register predecessor() const { return as_Register((encoding()-1) & (number_of_registers-1)); } |
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Register successor() const { return as_Register((encoding() + 1) & (number_of_registers-1)); } |
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}; |
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// The integer registers of the z/Architecture. |
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CONSTANT_REGISTER_DECLARATION(Register, noreg, (-1)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R0, (0)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R1, (1)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R2, (2)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R3, (3)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R4, (4)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R5, (5)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R6, (6)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R7, (7)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R8, (8)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R9, (9)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R10, (10)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R11, (11)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R12, (12)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R13, (13)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R14, (14)); |
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CONSTANT_REGISTER_DECLARATION(Register, Z_R15, (15)); |
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//============================= |
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//=== Condition Registers === |
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//============================= |
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// Use ConditionRegister as shortcut |
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class ConditionRegisterImpl; |
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typedef ConditionRegisterImpl* ConditionRegister; |
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// The implementation of condition register(s) for the z/Architecture. |
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class ConditionRegisterImpl: public AbstractRegisterImpl { |
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public: |
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enum { |
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number_of_registers = 1 |
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}; |
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// accessors |
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int encoding() const { |
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assert(is_valid(), "invalid register"); return value(); |
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} |
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// testers |
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bool is_valid() const { |
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return (0 <= value() && value() < number_of_registers); |
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} |
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bool is_volatile() const { |
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return true; |
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} |
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bool is_nonvolatile() const { |
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return false; |
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} |
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// construction. |
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inline friend ConditionRegister as_ConditionRegister(int encoding); |
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inline VMReg as_VMReg(); |
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}; |
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inline ConditionRegister as_ConditionRegister(int encoding) { |
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assert(encoding >= 0 && encoding < ConditionRegisterImpl::number_of_registers, "bad condition register encoding"); |
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return (ConditionRegister)(long)encoding; |
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} |
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// The condition register of the z/Architecture. |
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CONSTANT_REGISTER_DECLARATION(ConditionRegister, Z_CR, (0)); |
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// Because z/Architecture has so many registers, #define'ing values for them is |
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// beneficial in code size and is worth the cost of some of the |
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// dangers of defines. |
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// If a particular file has a problem with these defines then it's possible |
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// to turn them off in that file by defining |
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// DONT_USE_REGISTER_DEFINES. Register_definitions_s390.cpp does that |
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// so that it's able to provide real definitions of these registers |
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// for use in debuggers and such. |
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#ifndef DONT_USE_REGISTER_DEFINES |
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#define noreg ((Register)(noreg_RegisterEnumValue)) |
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#define Z_R0 ((Register)(Z_R0_RegisterEnumValue)) |
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#define Z_R1 ((Register)(Z_R1_RegisterEnumValue)) |
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#define Z_R2 ((Register)(Z_R2_RegisterEnumValue)) |
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#define Z_R3 ((Register)(Z_R3_RegisterEnumValue)) |
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#define Z_R4 ((Register)(Z_R4_RegisterEnumValue)) |
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#define Z_R5 ((Register)(Z_R5_RegisterEnumValue)) |
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#define Z_R6 ((Register)(Z_R6_RegisterEnumValue)) |
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#define Z_R7 ((Register)(Z_R7_RegisterEnumValue)) |
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#define Z_R8 ((Register)(Z_R8_RegisterEnumValue)) |
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#define Z_R9 ((Register)(Z_R9_RegisterEnumValue)) |
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#define Z_R10 ((Register)(Z_R10_RegisterEnumValue)) |
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#define Z_R11 ((Register)(Z_R11_RegisterEnumValue)) |
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#define Z_R12 ((Register)(Z_R12_RegisterEnumValue)) |
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#define Z_R13 ((Register)(Z_R13_RegisterEnumValue)) |
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#define Z_R14 ((Register)(Z_R14_RegisterEnumValue)) |
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#define Z_R15 ((Register)(Z_R15_RegisterEnumValue)) |
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#define Z_CR ((ConditionRegister)(Z_CR_ConditionRegisterEnumValue)) |
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#endif // DONT_USE_REGISTER_DEFINES |
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//========================= |
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//=== Float Registers === |
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//========================= |
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// Use FloatRegister as shortcut |
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class FloatRegisterImpl; |
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typedef FloatRegisterImpl* FloatRegister; |
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// The implementation of float registers for the z/Architecture. |
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inline FloatRegister as_FloatRegister(int encoding) { |
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return (FloatRegister)(long)encoding; |
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} |
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class FloatRegisterImpl: public AbstractRegisterImpl { |
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public: |
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enum { |
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number_of_registers = 16, |
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number_of_arg_registers = 4 |
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}; |
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// construction |
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inline friend FloatRegister as_FloatRegister(int encoding); |
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inline VMReg as_VMReg(); |
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// accessors |
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int encoding() const { |
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assert(is_valid(), "invalid register"); return value(); |
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} |
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bool is_valid() const { return 0 <= value() && value() < number_of_registers; } |
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bool is_volatile() const { return (0 <= (value()&0x7F) && (value()&0x7F) <= 7); } |
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bool is_nonvolatile() const { return (8 <= (value()&0x7F) && (value()&0x7F) <= 15); } |
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const char* name() const; |
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FloatRegister successor() const { return as_FloatRegister(encoding() + 1); } |
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}; |
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// The float registers of z/Architecture. |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, fnoreg, (-1)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F0, (0)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F1, (1)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F2, (2)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F3, (3)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F4, (4)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F5, (5)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F6, (6)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F7, (7)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F8, (8)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F9, (9)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F10, (10)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F11, (11)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F12, (12)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F13, (13)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F14, (14)); |
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CONSTANT_REGISTER_DECLARATION(FloatRegister, Z_F15, (15)); |
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#ifndef DONT_USE_REGISTER_DEFINES |
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#define fnoreg ((FloatRegister)(fnoreg_FloatRegisterEnumValue)) |
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#define Z_F0 ((FloatRegister)( Z_F0_FloatRegisterEnumValue)) |
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#define Z_F1 ((FloatRegister)( Z_F1_FloatRegisterEnumValue)) |
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#define Z_F2 ((FloatRegister)( Z_F2_FloatRegisterEnumValue)) |
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#define Z_F3 ((FloatRegister)( Z_F3_FloatRegisterEnumValue)) |
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#define Z_F4 ((FloatRegister)( Z_F4_FloatRegisterEnumValue)) |
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#define Z_F5 ((FloatRegister)( Z_F5_FloatRegisterEnumValue)) |
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#define Z_F6 ((FloatRegister)( Z_F6_FloatRegisterEnumValue)) |
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#define Z_F7 ((FloatRegister)( Z_F7_FloatRegisterEnumValue)) |
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#define Z_F8 ((FloatRegister)( Z_F8_FloatRegisterEnumValue)) |
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#define Z_F9 ((FloatRegister)( Z_F9_FloatRegisterEnumValue)) |
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#define Z_F10 ((FloatRegister)( Z_F10_FloatRegisterEnumValue)) |
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#define Z_F11 ((FloatRegister)( Z_F11_FloatRegisterEnumValue)) |
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#define Z_F12 ((FloatRegister)( Z_F12_FloatRegisterEnumValue)) |
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#define Z_F13 ((FloatRegister)( Z_F13_FloatRegisterEnumValue)) |
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#define Z_F14 ((FloatRegister)( Z_F14_FloatRegisterEnumValue)) |
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#define Z_F15 ((FloatRegister)( Z_F15_FloatRegisterEnumValue)) |
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#endif // DONT_USE_REGISTER_DEFINES |
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// Single, Double and Quad fp reg classes. These exist to map the ADLC |
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// encoding for a floating point register, to the FloatRegister number |
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// desired by the macroassembler. A FloatRegister is a number between |
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// 0 and 31 passed around as a pointer. For ADLC, an fp register encoding |
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// is the actual bit encoding used by the z/Architecture hardware. When ADLC used |
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// the macroassembler to generate an instruction that references, e.g., a |
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// double fp reg, it passed the bit encoding to the macroassembler via |
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// as_FloatRegister, which, for double regs > 30, returns an illegal |
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// register number. |
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// |
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// Therefore we provide the following classes for use by ADLC. Their |
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// sole purpose is to convert from z/Architecture register encodings to FloatRegisters. |
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// At some future time, we might replace FloatRegister with these classes, |
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// hence the definitions of as_xxxFloatRegister as class methods rather |
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// than as external inline routines. |
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class SingleFloatRegisterImpl; |
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typedef SingleFloatRegisterImpl *SingleFloatRegister; |
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class SingleFloatRegisterImpl { |
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public: |
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303 |
friend FloatRegister as_SingleFloatRegister(int encoding) { |
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assert(encoding < 32, "bad single float register encoding"); |
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return as_FloatRegister(encoding); |
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} |
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}; |
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class DoubleFloatRegisterImpl; |
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typedef DoubleFloatRegisterImpl *DoubleFloatRegister; |
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class DoubleFloatRegisterImpl { |
|
313 |
public: |
|
314 |
friend FloatRegister as_DoubleFloatRegister(int encoding) { |
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assert(encoding < 32, "bad double float register encoding"); |
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return as_FloatRegister(((encoding & 1) << 5) | (encoding & 0x1e)); |
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} |
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}; |
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class QuadFloatRegisterImpl; |
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typedef QuadFloatRegisterImpl *QuadFloatRegister; |
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class QuadFloatRegisterImpl { |
|
324 |
public: |
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325 |
friend FloatRegister as_QuadFloatRegister(int encoding) { |
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assert(encoding < 32 && ((encoding & 2) == 0), "bad quad float register encoding"); |
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return as_FloatRegister(((encoding & 1) << 5) | (encoding & 0x1c)); |
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} |
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}; |
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//========================== |
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//=== Vector Registers === |
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//========================== |
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// Use VectorRegister as shortcut |
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class VectorRegisterImpl; |
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338 |
typedef VectorRegisterImpl* VectorRegister; |
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|
339 |
|
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340 |
// The implementation of vector registers for z/Architecture. |
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|
341 |
|
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342 |
inline VectorRegister as_VectorRegister(int encoding) { |
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343 |
return (VectorRegister)(long)encoding; |
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344 |
} |
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|
345 |
|
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346 |
class VectorRegisterImpl: public AbstractRegisterImpl { |
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347 |
public: |
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348 |
enum { |
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349 |
number_of_registers = 32, |
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350 |
number_of_arg_registers = 0 |
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351 |
}; |
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|
352 |
|
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353 |
// construction |
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354 |
inline friend VectorRegister as_VectorRegister(int encoding); |
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|
355 |
|
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|
356 |
inline VMReg as_VMReg(); |
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|
357 |
|
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|
358 |
// accessors |
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|
359 |
int encoding() const { |
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|
360 |
assert(is_valid(), "invalid register"); return value(); |
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|
361 |
} |
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|
362 |
|
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363 |
bool is_valid() const { return 0 <= value() && value() < number_of_registers; } |
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364 |
bool is_volatile() const { return true; } |
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365 |
bool is_nonvolatile() const { return false; } |
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|
366 |
|
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367 |
// Register fields in z/Architecture instructions are 4 bits wide, restricting the |
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368 |
// addressable register set size to 16. |
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369 |
// The vector register set size is 32, requiring an extension, by one bit, of the |
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370 |
// register encoding. This is accomplished by the introduction of a RXB field in the |
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371 |
// instruction. RXB = Register eXtension Bits. |
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372 |
// The RXB field contains the MSBs (most significant bit) of the vector register numbers |
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373 |
// used for this instruction. Assignment of MSB in RBX is by bit position of the |
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374 |
// register field in the instruction. |
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|
375 |
// Example: |
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376 |
// The register field starting at bit position 12 in the instruction is assigned RXB bit 0b0100. |
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|
377 |
int64_t RXB_mask(int pos) { |
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378 |
if (encoding() >= number_of_registers/2) { |
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|
379 |
switch (pos) { |
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|
380 |
case 8: return ((int64_t)0b1000) << 8; // actual bit pos: 36 |
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381 |
case 12: return ((int64_t)0b0100) << 8; // actual bit pos: 37 |
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382 |
case 16: return ((int64_t)0b0010) << 8; // actual bit pos: 38 |
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383 |
case 32: return ((int64_t)0b0001) << 8; // actual bit pos: 39 |
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|
384 |
default: |
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|
385 |
ShouldNotReachHere(); |
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|
386 |
} |
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|
387 |
} |
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|
388 |
return 0; |
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|
389 |
} |
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|
390 |
|
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|
391 |
const char* name() const; |
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|
392 |
|
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|
393 |
VectorRegister successor() const { return as_VectorRegister(encoding() + 1); } |
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|
394 |
}; |
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|
395 |
|
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|
396 |
// The Vector registers of z/Architecture. |
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|
397 |
|
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|
398 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, vnoreg, (-1)); |
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|
399 |
|
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|
400 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V0, (0)); |
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|
401 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V1, (1)); |
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|
402 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V2, (2)); |
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|
403 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V3, (3)); |
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|
404 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V4, (4)); |
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|
405 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V5, (5)); |
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|
406 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V6, (6)); |
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|
407 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V7, (7)); |
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|
408 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V8, (8)); |
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|
409 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V9, (9)); |
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|
410 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V10, (10)); |
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|
411 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V11, (11)); |
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|
412 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V12, (12)); |
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|
413 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V13, (13)); |
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|
414 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V14, (14)); |
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|
415 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V15, (15)); |
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|
416 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V16, (16)); |
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|
417 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V17, (17)); |
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|
418 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V18, (18)); |
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|
419 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V19, (19)); |
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|
420 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V20, (20)); |
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|
421 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V21, (21)); |
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|
422 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V22, (22)); |
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|
423 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V23, (23)); |
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|
424 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V24, (24)); |
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|
425 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V25, (25)); |
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|
426 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V26, (26)); |
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|
427 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V27, (27)); |
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|
428 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V28, (28)); |
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|
429 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V29, (29)); |
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|
430 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V30, (30)); |
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|
431 |
CONSTANT_REGISTER_DECLARATION(VectorRegister, Z_V31, (31)); |
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|
432 |
|
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|
433 |
#ifndef DONT_USE_REGISTER_DEFINES |
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|
434 |
#define vnoreg ((VectorRegister)(vnoreg_VectorRegisterEnumValue)) |
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|
435 |
#define Z_V0 ((VectorRegister)( Z_V0_VectorRegisterEnumValue)) |
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|
436 |
#define Z_V1 ((VectorRegister)( Z_V1_VectorRegisterEnumValue)) |
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|
437 |
#define Z_V2 ((VectorRegister)( Z_V2_VectorRegisterEnumValue)) |
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|
438 |
#define Z_V3 ((VectorRegister)( Z_V3_VectorRegisterEnumValue)) |
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|
439 |
#define Z_V4 ((VectorRegister)( Z_V4_VectorRegisterEnumValue)) |
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|
440 |
#define Z_V5 ((VectorRegister)( Z_V5_VectorRegisterEnumValue)) |
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|
441 |
#define Z_V6 ((VectorRegister)( Z_V6_VectorRegisterEnumValue)) |
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|
442 |
#define Z_V7 ((VectorRegister)( Z_V7_VectorRegisterEnumValue)) |
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|
443 |
#define Z_V8 ((VectorRegister)( Z_V8_VectorRegisterEnumValue)) |
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|
444 |
#define Z_V9 ((VectorRegister)( Z_V9_VectorRegisterEnumValue)) |
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|
445 |
#define Z_V10 ((VectorRegister)( Z_V10_VectorRegisterEnumValue)) |
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|
446 |
#define Z_V11 ((VectorRegister)( Z_V11_VectorRegisterEnumValue)) |
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|
447 |
#define Z_V12 ((VectorRegister)( Z_V12_VectorRegisterEnumValue)) |
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|
448 |
#define Z_V13 ((VectorRegister)( Z_V13_VectorRegisterEnumValue)) |
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|
449 |
#define Z_V14 ((VectorRegister)( Z_V14_VectorRegisterEnumValue)) |
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450 |
#define Z_V15 ((VectorRegister)( Z_V15_VectorRegisterEnumValue)) |
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451 |
#define Z_V16 ((VectorRegister)( Z_V16_VectorRegisterEnumValue)) |
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|
452 |
#define Z_V17 ((VectorRegister)( Z_V17_VectorRegisterEnumValue)) |
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|
453 |
#define Z_V18 ((VectorRegister)( Z_V18_VectorRegisterEnumValue)) |
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#define Z_V19 ((VectorRegister)( Z_V19_VectorRegisterEnumValue)) |
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#define Z_V20 ((VectorRegister)( Z_V20_VectorRegisterEnumValue)) |
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#define Z_V21 ((VectorRegister)( Z_V21_VectorRegisterEnumValue)) |
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#define Z_V22 ((VectorRegister)( Z_V22_VectorRegisterEnumValue)) |
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#define Z_V23 ((VectorRegister)( Z_V23_VectorRegisterEnumValue)) |
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#define Z_V24 ((VectorRegister)( Z_V24_VectorRegisterEnumValue)) |
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#define Z_V25 ((VectorRegister)( Z_V25_VectorRegisterEnumValue)) |
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#define Z_V26 ((VectorRegister)( Z_V26_VectorRegisterEnumValue)) |
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#define Z_V27 ((VectorRegister)( Z_V27_VectorRegisterEnumValue)) |
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#define Z_V28 ((VectorRegister)( Z_V28_VectorRegisterEnumValue)) |
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#define Z_V29 ((VectorRegister)( Z_V29_VectorRegisterEnumValue)) |
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#define Z_V30 ((VectorRegister)( Z_V30_VectorRegisterEnumValue)) |
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#define Z_V31 ((VectorRegister)( Z_V31_VectorRegisterEnumValue)) |
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#endif // DONT_USE_REGISTER_DEFINES |
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// Need to know the total number of registers of all sorts for SharedInfo. |
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// Define a class that exports it. |
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class ConcreteRegisterImpl : public AbstractRegisterImpl { |
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public: |
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enum { |
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number_of_registers = |
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(RegisterImpl::number_of_registers + |
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FloatRegisterImpl::number_of_registers) |
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* 2 // register halves |
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+ 1 // condition code register |
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}; |
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static const int max_gpr; |
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static const int max_fpr; |
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}; |
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// Common register declarations used in assembler code. |
488 |
REGISTER_DECLARATION(Register, Z_EXC_OOP, Z_R2); |
|
489 |
REGISTER_DECLARATION(Register, Z_EXC_PC, Z_R3); |
|
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REGISTER_DECLARATION(Register, Z_RET, Z_R2); |
|
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REGISTER_DECLARATION(Register, Z_ARG1, Z_R2); |
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492 |
REGISTER_DECLARATION(Register, Z_ARG2, Z_R3); |
|
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REGISTER_DECLARATION(Register, Z_ARG3, Z_R4); |
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REGISTER_DECLARATION(Register, Z_ARG4, Z_R5); |
|
495 |
REGISTER_DECLARATION(Register, Z_ARG5, Z_R6); |
|
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REGISTER_DECLARATION(Register, Z_SP, Z_R15); |
|
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REGISTER_DECLARATION(FloatRegister, Z_FRET, Z_F0); |
|
498 |
REGISTER_DECLARATION(FloatRegister, Z_FARG1, Z_F0); |
|
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REGISTER_DECLARATION(FloatRegister, Z_FARG2, Z_F2); |
|
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REGISTER_DECLARATION(FloatRegister, Z_FARG3, Z_F4); |
|
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REGISTER_DECLARATION(FloatRegister, Z_FARG4, Z_F6); |
|
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#ifndef DONT_USE_REGISTER_DEFINES |
|
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#define Z_EXC_OOP AS_REGISTER(Register, Z_R2) |
|
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#define Z_EXC_PC AS_REGISTER(Register, Z_R3) |
|
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#define Z_RET AS_REGISTER(Register, Z_R2) |
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#define Z_ARG1 AS_REGISTER(Register, Z_R2) |
|
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#define Z_ARG2 AS_REGISTER(Register, Z_R3) |
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#define Z_ARG3 AS_REGISTER(Register, Z_R4) |
|
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#define Z_ARG4 AS_REGISTER(Register, Z_R5) |
|
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#define Z_ARG5 AS_REGISTER(Register, Z_R6) |
|
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#define Z_SP AS_REGISTER(Register, Z_R15) |
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#define Z_FRET AS_REGISTER(FloatRegister, Z_F0) |
|
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#define Z_FARG1 AS_REGISTER(FloatRegister, Z_F0) |
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#define Z_FARG2 AS_REGISTER(FloatRegister, Z_F2) |
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#define Z_FARG3 AS_REGISTER(FloatRegister, Z_F4) |
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#define Z_FARG4 AS_REGISTER(FloatRegister, Z_F6) |
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#endif |
|
519 |
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// Register declarations to be used in frame manager assembly code. |
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521 |
// Use only non-volatile registers in order to keep values across C-calls. |
|
522 |
||
523 |
// Register to cache the integer value on top of the operand stack. |
|
524 |
REGISTER_DECLARATION(Register, Z_tos, Z_R2); |
|
525 |
// Register to cache the fp value on top of the operand stack. |
|
526 |
REGISTER_DECLARATION(FloatRegister, Z_ftos, Z_F0); |
|
527 |
// Expression stack pointer in interpreted java frame. |
|
528 |
REGISTER_DECLARATION(Register, Z_esp, Z_R7); |
|
529 |
// Address of current thread. |
|
530 |
REGISTER_DECLARATION(Register, Z_thread, Z_R8); |
|
531 |
// Address of current method. only valid in interpreter_entry. |
|
532 |
REGISTER_DECLARATION(Register, Z_method, Z_R9); |
|
533 |
// Inline cache register. used by c1 and c2. |
|
534 |
REGISTER_DECLARATION(Register, Z_inline_cache,Z_R9); |
|
535 |
// Frame pointer of current interpreter frame. only valid while |
|
536 |
// executing bytecodes. |
|
537 |
REGISTER_DECLARATION(Register, Z_fp, Z_R9); |
|
538 |
// Address of the locals array in an interpreted java frame. |
|
539 |
REGISTER_DECLARATION(Register, Z_locals, Z_R12); |
|
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// Bytecode pointer. |
|
541 |
REGISTER_DECLARATION(Register, Z_bcp, Z_R13); |
|
542 |
// Bytecode which is dispatched (short lived!). |
|
543 |
REGISTER_DECLARATION(Register, Z_bytecode, Z_R14); |
|
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#ifndef DONT_USE_REGISTER_DEFINES |
|
545 |
#define Z_tos AS_REGISTER(Register, Z_R2) |
|
546 |
#define Z_ftos AS_REGISTER(FloatRegister, Z_F0) |
|
547 |
#define Z_esp AS_REGISTER(Register, Z_R7) |
|
548 |
#define Z_thread AS_REGISTER(Register, Z_R8) |
|
549 |
#define Z_method AS_REGISTER(Register, Z_R9) |
|
550 |
#define Z_inline_cache AS_REGISTER(Register, Z_R9) |
|
551 |
#define Z_fp AS_REGISTER(Register, Z_R9) |
|
552 |
#define Z_locals AS_REGISTER(Register, Z_R12) |
|
553 |
#define Z_bcp AS_REGISTER(Register, Z_R13) |
|
554 |
#define Z_bytecode AS_REGISTER(Register, Z_R14) |
|
555 |
#endif |
|
556 |
||
557 |
// Temporary registers to be used within frame manager. We can use |
|
558 |
// the nonvolatiles because the call stub has saved them. |
|
559 |
// Use only non-volatile registers in order to keep values across C-calls. |
|
560 |
REGISTER_DECLARATION(Register, Z_tmp_1, Z_R10); |
|
561 |
REGISTER_DECLARATION(Register, Z_tmp_2, Z_R11); |
|
562 |
REGISTER_DECLARATION(Register, Z_tmp_3, Z_R12); |
|
563 |
REGISTER_DECLARATION(Register, Z_tmp_4, Z_R13); |
|
564 |
#ifndef DONT_USE_REGISTER_DEFINES |
|
565 |
#define Z_tmp_1 AS_REGISTER(Register, Z_R10) |
|
566 |
#define Z_tmp_2 AS_REGISTER(Register, Z_R11) |
|
567 |
#define Z_tmp_3 AS_REGISTER(Register, Z_R12) |
|
568 |
#define Z_tmp_4 AS_REGISTER(Register, Z_R13) |
|
569 |
#endif |
|
570 |
||
571 |
// Scratch registers are volatile. |
|
572 |
REGISTER_DECLARATION(Register, Z_R0_scratch, Z_R0); |
|
573 |
REGISTER_DECLARATION(Register, Z_R1_scratch, Z_R1); |
|
574 |
REGISTER_DECLARATION(FloatRegister, Z_fscratch_1, Z_F1); |
|
575 |
#ifndef DONT_USE_REGISTER_DEFINES |
|
576 |
#define Z_R0_scratch AS_REGISTER(Register, Z_R0) |
|
577 |
#define Z_R1_scratch AS_REGISTER(Register, Z_R1) |
|
578 |
#define Z_fscratch_1 AS_REGISTER(FloatRegister, Z_F1) |
|
579 |
#endif |
|
580 |
||
581 |
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#endif // CPU_S390_REGISTER_S390_HPP |