/*

 * Copyright 2012, 2014 SAP AG. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#ifndef CPU_PPC_VM_REGISTER_PPC_HPP

#define CPU_PPC_VM_REGISTER_PPC_HPP

#include "asm/register.hpp"

// forward declaration

class Address;

class VMRegImpl;

typedef VMRegImpl* VMReg;

//  PPC64 registers

//

//  See "64-bit PowerPC ELF ABI Supplement 1.7", IBM Corp. (2003-10-29).

//  (http://math-atlas.sourceforge.net/devel/assembly/PPC-elf64abi-1.7.pdf)

//

//  r0        Register used in function prologs (volatile)

//  r1        Stack pointer (nonvolatile)

//  r2        TOC pointer (volatile)

//  r3        Parameter and return value (volatile)

//  r4-r10    Function parameters (volatile)

//  r11       Register used in calls by pointer and as an environment pointer for languages which require one (volatile)

//  r12       Register used for exception handling and glink code (volatile)

//  r13       Reserved for use as system thread ID

//  r14-r31   Local variables (nonvolatile)

//

//  f0        Scratch register (volatile)

//  f1-f4     Floating point parameters and return value (volatile)

//  f5-f13    Floating point parameters (volatile)

//  f14-f31   Floating point values (nonvolatile)

//

//  LR        Link register for return address (volatile)

//  CTR       Loop counter (volatile)

//  XER       Fixed point exception register (volatile)

//  FPSCR     Floating point status and control register (volatile)

//

//  CR0-CR1   Condition code fields (volatile)

//  CR2-CR4   Condition code fields (nonvolatile)

//  CR5-CR7   Condition code fields (volatile)

//

//  ----------------------------------------------

//  On processors with the VMX feature:

//  v0-v1     Volatile scratch registers

//  v2-v13    Volatile vector parameters registers

//  v14-v19   Volatile scratch registers

//  v20-v31   Non-volatile registers

//  vrsave    Non-volatile 32-bit register

// Use Register as shortcut

class RegisterImpl;

typedef RegisterImpl* Register;

inline Register as_Register(int encoding) {

  assert(encoding >= 0 && encoding < 32, "bad register encoding");

  return (Register)(intptr_t)encoding;

}

// The implementation of integer registers for the Power architecture

class RegisterImpl: public AbstractRegisterImpl {

 public:

  enum {

    number_of_registers = 32

  };

  // general construction

  inline friend Register as_Register(int encoding);

  // accessors

  Register successor() const { return as_Register(encoding() + 1); }

  // testers

  bool is_valid()       const { return ( 0 <= (value()&0x7F) && (value()&0x7F) <  number_of_registers); }

  bool is_volatile()    const { return ( 0 <= (value()&0x7F) && (value()&0x7F) <= 13 ); }

  bool is_nonvolatile() const { return (14 <= (value()&0x7F) && (value()&0x7F) <= 31 ); }

  const char* name() const;

};

// The integer registers of the PPC architecture

CONSTANT_REGISTER_DECLARATION(Register, noreg, (-1));

CONSTANT_REGISTER_DECLARATION(Register, R0,   (0));

CONSTANT_REGISTER_DECLARATION(Register, R1,   (1));

CONSTANT_REGISTER_DECLARATION(Register, R2,   (2));

CONSTANT_REGISTER_DECLARATION(Register, R3,   (3));

CONSTANT_REGISTER_DECLARATION(Register, R4,   (4));

CONSTANT_REGISTER_DECLARATION(Register, R5,   (5));

CONSTANT_REGISTER_DECLARATION(Register, R6,   (6));

CONSTANT_REGISTER_DECLARATION(Register, R7,   (7));

CONSTANT_REGISTER_DECLARATION(Register, R8,   (8));

CONSTANT_REGISTER_DECLARATION(Register, R9,   (9));

CONSTANT_REGISTER_DECLARATION(Register, R10, (10));

CONSTANT_REGISTER_DECLARATION(Register, R11, (11));

CONSTANT_REGISTER_DECLARATION(Register, R12, (12));

CONSTANT_REGISTER_DECLARATION(Register, R13, (13));

CONSTANT_REGISTER_DECLARATION(Register, R14, (14));

CONSTANT_REGISTER_DECLARATION(Register, R15, (15));

CONSTANT_REGISTER_DECLARATION(Register, R16, (16));

CONSTANT_REGISTER_DECLARATION(Register, R17, (17));

CONSTANT_REGISTER_DECLARATION(Register, R18, (18));

CONSTANT_REGISTER_DECLARATION(Register, R19, (19));

CONSTANT_REGISTER_DECLARATION(Register, R20, (20));

CONSTANT_REGISTER_DECLARATION(Register, R21, (21));

CONSTANT_REGISTER_DECLARATION(Register, R22, (22));

CONSTANT_REGISTER_DECLARATION(Register, R23, (23));

CONSTANT_REGISTER_DECLARATION(Register, R24, (24));

CONSTANT_REGISTER_DECLARATION(Register, R25, (25));

CONSTANT_REGISTER_DECLARATION(Register, R26, (26));

CONSTANT_REGISTER_DECLARATION(Register, R27, (27));

CONSTANT_REGISTER_DECLARATION(Register, R28, (28));

CONSTANT_REGISTER_DECLARATION(Register, R29, (29));

CONSTANT_REGISTER_DECLARATION(Register, R30, (30));

CONSTANT_REGISTER_DECLARATION(Register, R31, (31));

//

// Because Power has many registers, #define'ing values for them is

// beneficial in code size and is worth the cost of some of the

// dangers of defines. If a particular file has a problem with these

// defines then it's possible to turn them off in that file by

// defining DONT_USE_REGISTER_DEFINES. Register_definition_ppc.cpp

// does that so that it's able to provide real definitions of these

// registers for use in debuggers and such.

//

#ifndef DONT_USE_REGISTER_DEFINES

#define noreg ((Register)(noreg_RegisterEnumValue))

#define R0 ((Register)(R0_RegisterEnumValue))

#define R1 ((Register)(R1_RegisterEnumValue))

#define R2 ((Register)(R2_RegisterEnumValue))

#define R3 ((Register)(R3_RegisterEnumValue))

#define R4 ((Register)(R4_RegisterEnumValue))

#define R5 ((Register)(R5_RegisterEnumValue))

#define R6 ((Register)(R6_RegisterEnumValue))

#define R7 ((Register)(R7_RegisterEnumValue))

#define R8 ((Register)(R8_RegisterEnumValue))

#define R9 ((Register)(R9_RegisterEnumValue))

#define R10 ((Register)(R10_RegisterEnumValue))

#define R11 ((Register)(R11_RegisterEnumValue))

#define R12 ((Register)(R12_RegisterEnumValue))

#define R13 ((Register)(R13_RegisterEnumValue))

#define R14 ((Register)(R14_RegisterEnumValue))

#define R15 ((Register)(R15_RegisterEnumValue))

#define R16 ((Register)(R16_RegisterEnumValue))

#define R17 ((Register)(R17_RegisterEnumValue))

#define R18 ((Register)(R18_RegisterEnumValue))

#define R19 ((Register)(R19_RegisterEnumValue))

#define R20 ((Register)(R20_RegisterEnumValue))

#define R21 ((Register)(R21_RegisterEnumValue))

#define R22 ((Register)(R22_RegisterEnumValue))

#define R23 ((Register)(R23_RegisterEnumValue))

#define R24 ((Register)(R24_RegisterEnumValue))

#define R25 ((Register)(R25_RegisterEnumValue))

#define R26 ((Register)(R26_RegisterEnumValue))

#define R27 ((Register)(R27_RegisterEnumValue))

#define R28 ((Register)(R28_RegisterEnumValue))

#define R29 ((Register)(R29_RegisterEnumValue))

#define R30 ((Register)(R30_RegisterEnumValue))

#define R31 ((Register)(R31_RegisterEnumValue))

#endif

// Use ConditionRegister as shortcut

class ConditionRegisterImpl;

typedef ConditionRegisterImpl* ConditionRegister;

inline ConditionRegister as_ConditionRegister(int encoding) {

  assert(encoding >= 0 && encoding < 8, "bad condition register encoding");

  return (ConditionRegister)(intptr_t)encoding;

}

// The implementation of condition register(s) for the PPC architecture

class ConditionRegisterImpl: public AbstractRegisterImpl {

 public:

  enum {

    number_of_registers = 8

  };

  // construction.

  inline friend ConditionRegister as_ConditionRegister(int encoding);

  // accessors

  // testers

  bool is_valid()       const { return  (0 <= value()        &&  value() < number_of_registers); }

  bool is_nonvolatile() const { return  (2 <= (value()&0x7F) && (value()&0x7F) <= 4 );  }

  const char* name() const;

};

// The (parts of the) condition register(s) of the PPC architecture

// sys/ioctl.h on AIX defines CR0-CR3, so I name these CCR.

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR0,   (0));

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR1,   (1));

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR2,   (2));

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR3,   (3));

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR4,   (4));

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR5,   (5));

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR6,   (6));

CONSTANT_REGISTER_DECLARATION(ConditionRegister, CCR7,   (7));

#ifndef DONT_USE_REGISTER_DEFINES

#define CCR0 ((ConditionRegister)(CCR0_ConditionRegisterEnumValue))

#define CCR1 ((ConditionRegister)(CCR1_ConditionRegisterEnumValue))

#define CCR2 ((ConditionRegister)(CCR2_ConditionRegisterEnumValue))

#define CCR3 ((ConditionRegister)(CCR3_ConditionRegisterEnumValue))

#define CCR4 ((ConditionRegister)(CCR4_ConditionRegisterEnumValue))

#define CCR5 ((ConditionRegister)(CCR5_ConditionRegisterEnumValue))

#define CCR6 ((ConditionRegister)(CCR6_ConditionRegisterEnumValue))

#define CCR7 ((ConditionRegister)(CCR7_ConditionRegisterEnumValue))

#endif // DONT_USE_REGISTER_DEFINES

// Use FloatRegister as shortcut

class FloatRegisterImpl;

typedef FloatRegisterImpl* FloatRegister;

inline FloatRegister as_FloatRegister(int encoding) {

  assert(encoding >= 0 && encoding < 32, "bad float register encoding");

  return (FloatRegister)(intptr_t)encoding;

}

// The implementation of float registers for the PPC architecture

class FloatRegisterImpl: public AbstractRegisterImpl {

 public:

  enum {

    number_of_registers = 32

  };

  // construction

  inline friend FloatRegister as_FloatRegister(int encoding);

  // accessors

  int           encoding() const { assert(is_valid(), "invalid register"); return value(); }

  FloatRegister successor() const { return as_FloatRegister(encoding() + 1); }

  // testers

  bool is_valid()       const { return (0  <=  value()       &&  value()       < number_of_registers); }

  const char* name() const;

};

// The float registers of the PPC architecture

CONSTANT_REGISTER_DECLARATION(FloatRegister, fnoreg, (-1));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F0,  ( 0));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F1,  ( 1));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F2,  ( 2));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F3,  ( 3));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F4,  ( 4));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F5,  ( 5));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F6,  ( 6));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F7,  ( 7));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F8,  ( 8));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F9,  ( 9));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F10, (10));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F11, (11));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F12, (12));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F13, (13));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F14, (14));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F15, (15));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F16, (16));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F17, (17));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F18, (18));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F19, (19));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F20, (20));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F21, (21));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F22, (22));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F23, (23));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F24, (24));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F25, (25));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F26, (26));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F27, (27));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F28, (28));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F29, (29));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F30, (30));

CONSTANT_REGISTER_DECLARATION(FloatRegister, F31, (31));

#ifndef DONT_USE_REGISTER_DEFINES

#define fnoreg ((FloatRegister)(fnoreg_FloatRegisterEnumValue))

#define F0     ((FloatRegister)(    F0_FloatRegisterEnumValue))

#define F1     ((FloatRegister)(    F1_FloatRegisterEnumValue))

#define F2     ((FloatRegister)(    F2_FloatRegisterEnumValue))

#define F3     ((FloatRegister)(    F3_FloatRegisterEnumValue))

#define F4     ((FloatRegister)(    F4_FloatRegisterEnumValue))

#define F5     ((FloatRegister)(    F5_FloatRegisterEnumValue))

#define F6     ((FloatRegister)(    F6_FloatRegisterEnumValue))

#define F7     ((FloatRegister)(    F7_FloatRegisterEnumValue))

#define F8     ((FloatRegister)(    F8_FloatRegisterEnumValue))

#define F9     ((FloatRegister)(    F9_FloatRegisterEnumValue))

#define F10    ((FloatRegister)(   F10_FloatRegisterEnumValue))

#define F11    ((FloatRegister)(   F11_FloatRegisterEnumValue))

#define F12    ((FloatRegister)(   F12_FloatRegisterEnumValue))

#define F13    ((FloatRegister)(   F13_FloatRegisterEnumValue))

#define F14    ((FloatRegister)(   F14_FloatRegisterEnumValue))

#define F15    ((FloatRegister)(   F15_FloatRegisterEnumValue))

#define F16    ((FloatRegister)(   F16_FloatRegisterEnumValue))

#define F17    ((FloatRegister)(   F17_FloatRegisterEnumValue))

#define F18    ((FloatRegister)(   F18_FloatRegisterEnumValue))

#define F19    ((FloatRegister)(   F19_FloatRegisterEnumValue))

#define F20    ((FloatRegister)(   F20_FloatRegisterEnumValue))

#define F21    ((FloatRegister)(   F21_FloatRegisterEnumValue))

#define F22    ((FloatRegister)(   F22_FloatRegisterEnumValue))

#define F23    ((FloatRegister)(   F23_FloatRegisterEnumValue))

#define F24    ((FloatRegister)(   F24_FloatRegisterEnumValue))

#define F25    ((FloatRegister)(   F25_FloatRegisterEnumValue))

#define F26    ((FloatRegister)(   F26_FloatRegisterEnumValue))

#define F27    ((FloatRegister)(   F27_FloatRegisterEnumValue))

#define F28    ((FloatRegister)(   F28_FloatRegisterEnumValue))

#define F29    ((FloatRegister)(   F29_FloatRegisterEnumValue))

#define F30    ((FloatRegister)(   F30_FloatRegisterEnumValue))

#define F31    ((FloatRegister)(   F31_FloatRegisterEnumValue))

#endif // DONT_USE_REGISTER_DEFINES

// Use SpecialRegister as shortcut

class SpecialRegisterImpl;

typedef SpecialRegisterImpl* SpecialRegister;

inline SpecialRegister as_SpecialRegister(int encoding) {

  return (SpecialRegister)(intptr_t)encoding;

}

// The implementation of special registers for the Power architecture (LR, CTR and friends)

class SpecialRegisterImpl: public AbstractRegisterImpl {

 public:

  enum {

    number_of_registers = 6

  };

  // construction

  inline friend SpecialRegister as_SpecialRegister(int encoding);

  // accessors

  int             encoding()  const { assert(is_valid(), "invalid register"); return value(); }

  // testers

  bool is_valid()       const { return 0 <= value() && value() < number_of_registers; }

  const char* name() const;

};

// The special registers of the PPC architecture

CONSTANT_REGISTER_DECLARATION(SpecialRegister, SR_XER,     (0));

CONSTANT_REGISTER_DECLARATION(SpecialRegister, SR_LR,      (1));

CONSTANT_REGISTER_DECLARATION(SpecialRegister, SR_CTR,     (2));

CONSTANT_REGISTER_DECLARATION(SpecialRegister, SR_VRSAVE,  (3));

CONSTANT_REGISTER_DECLARATION(SpecialRegister, SR_SPEFSCR, (4));

CONSTANT_REGISTER_DECLARATION(SpecialRegister, SR_PPR,     (5));

#ifndef DONT_USE_REGISTER_DEFINES

#define SR_XER     ((SpecialRegister)(SR_XER_SpecialRegisterEnumValue))

#define SR_LR      ((SpecialRegister)(SR_LR_SpecialRegisterEnumValue))

#define SR_CTR     ((SpecialRegister)(SR_CTR_SpecialRegisterEnumValue))

#define SR_VRSAVE  ((SpecialRegister)(SR_VRSAVE_SpecialRegisterEnumValue))

#define SR_SPEFSCR ((SpecialRegister)(SR_SPEFSCR_SpecialRegisterEnumValue))

#define SR_PPR     ((SpecialRegister)(SR_PPR_SpecialRegisterEnumValue))

#endif // DONT_USE_REGISTER_DEFINES

// Use VectorRegister as shortcut

class VectorRegisterImpl;

typedef VectorRegisterImpl* VectorRegister;

inline VectorRegister as_VectorRegister(int encoding) {

  return (VectorRegister)(intptr_t)encoding;

}

// The implementation of vector registers for the Power architecture

class VectorRegisterImpl: public AbstractRegisterImpl {

 public:

  enum {

    number_of_registers = 32

  };

  // construction

  inline friend VectorRegister as_VectorRegister(int encoding);

  // accessors

  int            encoding()  const { assert(is_valid(), "invalid register"); return value(); }

  // testers

  bool is_valid()       const { return   0 <=  value()       &&  value() < number_of_registers; }

  const char* name() const;

};

// The Vector registers of the Power architecture

CONSTANT_REGISTER_DECLARATION(VectorRegister, vnoreg, (-1));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR0,  ( 0));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR1,  ( 1));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR2,  ( 2));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR3,  ( 3));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR4,  ( 4));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR5,  ( 5));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR6,  ( 6));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR7,  ( 7));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR8,  ( 8));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR9,  ( 9));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR10, (10));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR11, (11));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR12, (12));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR13, (13));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR14, (14));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR15, (15));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR16, (16));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR17, (17));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR18, (18));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR19, (19));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR20, (20));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR21, (21));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR22, (22));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR23, (23));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR24, (24));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR25, (25));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR26, (26));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR27, (27));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR28, (28));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR29, (29));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR30, (30));

CONSTANT_REGISTER_DECLARATION(VectorRegister, VR31, (31));

#ifndef DONT_USE_REGISTER_DEFINES

#define vnoreg ((VectorRegister)(vnoreg_VectorRegisterEnumValue))

#define VR0    ((VectorRegister)(   VR0_VectorRegisterEnumValue))

#define VR1    ((VectorRegister)(   VR1_VectorRegisterEnumValue))

#define VR2    ((VectorRegister)(   VR2_VectorRegisterEnumValue))

#define VR3    ((VectorRegister)(   VR3_VectorRegisterEnumValue))

#define VR4    ((VectorRegister)(   VR4_VectorRegisterEnumValue))

#define VR5    ((VectorRegister)(   VR5_VectorRegisterEnumValue))

#define VR6    ((VectorRegister)(   VR6_VectorRegisterEnumValue))

#define VR7    ((VectorRegister)(   VR7_VectorRegisterEnumValue))

#define VR8    ((VectorRegister)(   VR8_VectorRegisterEnumValue))

#define VR9    ((VectorRegister)(   VR9_VectorRegisterEnumValue))

#define VR10   ((VectorRegister)(  VR10_VectorRegisterEnumValue))

#define VR11   ((VectorRegister)(  VR11_VectorRegisterEnumValue))

#define VR12   ((VectorRegister)(  VR12_VectorRegisterEnumValue))

#define VR13   ((VectorRegister)(  VR13_VectorRegisterEnumValue))

#define VR14   ((VectorRegister)(  VR14_VectorRegisterEnumValue))

#define VR15   ((VectorRegister)(  VR15_VectorRegisterEnumValue))

#define VR16   ((VectorRegister)(  VR16_VectorRegisterEnumValue))

#define VR17   ((VectorRegister)(  VR17_VectorRegisterEnumValue))

#define VR18   ((VectorRegister)(  VR18_VectorRegisterEnumValue))

#define VR19   ((VectorRegister)(  VR19_VectorRegisterEnumValue))

#define VR20   ((VectorRegister)(  VR20_VectorRegisterEnumValue))

#define VR21   ((VectorRegister)(  VR21_VectorRegisterEnumValue))

#define VR22   ((VectorRegister)(  VR22_VectorRegisterEnumValue))

#define VR23   ((VectorRegister)(  VR23_VectorRegisterEnumValue))

#define VR24   ((VectorRegister)(  VR24_VectorRegisterEnumValue))

#define VR25   ((VectorRegister)(  VR25_VectorRegisterEnumValue))

#define VR26   ((VectorRegister)(  VR26_VectorRegisterEnumValue))

#define VR27   ((VectorRegister)(  VR27_VectorRegisterEnumValue))

#define VR28   ((VectorRegister)(  VR28_VectorRegisterEnumValue))

#define VR29   ((VectorRegister)(  VR29_VectorRegisterEnumValue))

#define VR30   ((VectorRegister)(  VR30_VectorRegisterEnumValue))

#define VR31   ((VectorRegister)(  VR31_VectorRegisterEnumValue))

#endif // DONT_USE_REGISTER_DEFINES

// Maximum number of incoming arguments that can be passed in i registers.

const int PPC_ARGS_IN_REGS_NUM = 8;

// Need to know the total number of registers of all sorts for SharedInfo.

// Define a class that exports it.

class ConcreteRegisterImpl : public AbstractRegisterImpl {

 public:

  enum {

    // This number must be large enough to cover REG_COUNT (defined by c2) registers.

    // There is no requirement that any ordering here matches any ordering c2 gives

    // it's optoregs.

    number_of_registers =

      ( RegisterImpl::number_of_registers +

        FloatRegisterImpl::number_of_registers )

      * 2                                          // register halves

      + ConditionRegisterImpl::number_of_registers // condition code registers

      + SpecialRegisterImpl::number_of_registers   // special registers

      + VectorRegisterImpl::number_of_registers    // vector registers

  };

  static const int max_gpr;

  static const int max_fpr;

  static const int max_cnd;

};

// Common register declarations used in assembler code.

REGISTER_DECLARATION(Register,      R0_SCRATCH, R0);  // volatile

REGISTER_DECLARATION(Register,      R1_SP,      R1);  // non-volatile

REGISTER_DECLARATION(Register,      R2_TOC,     R2);  // volatile

REGISTER_DECLARATION(Register,      R3_RET,     R3);  // volatile

REGISTER_DECLARATION(Register,      R3_ARG1,    R3);  // volatile

REGISTER_DECLARATION(Register,      R4_ARG2,    R4);  // volatile

REGISTER_DECLARATION(Register,      R5_ARG3,    R5);  // volatile