src/hotspot/cpu/ppc/register_ppc.hpp
changeset 47216 71c04702a3d5
parent 46809 057f21a10f5f
child 47583 2dcbf51d0431
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/ppc/register_ppc.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,820 @@
+/*
+ * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2017 SAP SE. 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 >= -1 && 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
+  int encoding() const { assert(is_valid(), "invalid register"); return value(); }
+  inline VMReg as_VMReg();
+  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
+  int encoding() const { assert(is_valid(), "invalid register"); return value(); }
+  inline VMReg as_VMReg();
+
+  // 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 >= -1 && 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(); }
+  inline VMReg  as_VMReg();
+  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(); }
+  inline VMReg    as_VMReg();
+
+  // 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;
+}
+
+// Forward declaration
+// Use VectorSRegister as a shortcut.
+class VectorSRegisterImpl;
+typedef VectorSRegisterImpl* VectorSRegister;
+
+// 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;
+
+  // convert to VSR
+  VectorSRegister to_vsr() 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
+
+
+inline VectorSRegister as_VectorSRegister(int encoding) {
+  return (VectorSRegister)(intptr_t)encoding;
+}
+
+// The implementation of Vector-Scalar (VSX) registers on POWER architecture.
+class VectorSRegisterImpl: public AbstractRegisterImpl {
+ public:
+  enum {
+    number_of_registers = 64
+  };
+
+  // construction
+  inline friend VectorSRegister as_VectorSRegister(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-Scalar (VSX) registers of the POWER architecture.
+
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, vsnoreg, (-1));
+
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR0,  ( 0));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR1,  ( 1));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR2,  ( 2));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR3,  ( 3));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR4,  ( 4));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR5,  ( 5));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR6,  ( 6));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR7,  ( 7));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR8,  ( 8));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR9,  ( 9));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR10, (10));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR11, (11));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR12, (12));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR13, (13));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR14, (14));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR15, (15));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR16, (16));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR17, (17));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR18, (18));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR19, (19));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR20, (20));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR21, (21));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR22, (22));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR23, (23));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR24, (24));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR25, (25));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR26, (26));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR27, (27));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR28, (28));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR29, (29));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR30, (30));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR31, (31));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR32, (32));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR33, (33));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR34, (34));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR35, (35));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR36, (36));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR37, (37));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR38, (38));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR39, (39));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR40, (40));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR41, (41));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR42, (42));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR43, (43));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR44, (44));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR45, (45));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR46, (46));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR47, (47));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR48, (48));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR49, (49));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR50, (50));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR51, (51));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR52, (52));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR53, (53));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR54, (54));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR55, (55));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR56, (56));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR57, (57));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR58, (58));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR59, (59));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR60, (60));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR61, (61));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR62, (62));
+CONSTANT_REGISTER_DECLARATION(VectorSRegister, VSR63, (63));
+
+#ifndef DONT_USE_REGISTER_DEFINES
+#define vsnoregi ((VectorSRegister)(vsnoreg_VectorSRegisterEnumValue))
+#define VSR0    ((VectorSRegister)(   VSR0_VectorSRegisterEnumValue))
+#define VSR1    ((VectorSRegister)(   VSR1_VectorSRegisterEnumValue))
+#define VSR2    ((VectorSRegister)(   VSR2_VectorSRegisterEnumValue))
+#define VSR3    ((VectorSRegister)(   VSR3_VectorSRegisterEnumValue))
+#define VSR4    ((VectorSRegister)(   VSR4_VectorSRegisterEnumValue))
+#define VSR5    ((VectorSRegister)(   VSR5_VectorSRegisterEnumValue))
+#define VSR6    ((VectorSRegister)(   VSR6_VectorSRegisterEnumValue))
+#define VSR7    ((VectorSRegister)(   VSR7_VectorSRegisterEnumValue))
+#define VSR8    ((VectorSRegister)(   VSR8_VectorSRegisterEnumValue))
+#define VSR9    ((VectorSRegister)(   VSR9_VectorSRegisterEnumValue))
+#define VSR10   ((VectorSRegister)(  VSR10_VectorSRegisterEnumValue))
+#define VSR11   ((VectorSRegister)(  VSR11_VectorSRegisterEnumValue))
+#define VSR12   ((VectorSRegister)(  VSR12_VectorSRegisterEnumValue))
+#define VSR13   ((VectorSRegister)(  VSR13_VectorSRegisterEnumValue))
+#define VSR14   ((VectorSRegister)(  VSR14_VectorSRegisterEnumValue))
+#define VSR15   ((VectorSRegister)(  VSR15_VectorSRegisterEnumValue))
+#define VSR16   ((VectorSRegister)(  VSR16_VectorSRegisterEnumValue))
+#define VSR17   ((VectorSRegister)(  VSR17_VectorSRegisterEnumValue))
+#define VSR18   ((VectorSRegister)(  VSR18_VectorSRegisterEnumValue))
+#define VSR19   ((VectorSRegister)(  VSR19_VectorSRegisterEnumValue))
+#define VSR20   ((VectorSRegister)(  VSR20_VectorSRegisterEnumValue))
+#define VSR21   ((VectorSRegister)(  VSR21_VectorSRegisterEnumValue))
+#define VSR22   ((VectorSRegister)(  VSR22_VectorSRegisterEnumValue))
+#define VSR23   ((VectorSRegister)(  VSR23_VectorSRegisterEnumValue))
+#define VSR24   ((VectorSRegister)(  VSR24_VectorSRegisterEnumValue))
+#define VSR25   ((VectorSRegister)(  VSR25_VectorSRegisterEnumValue))
+#define VSR26   ((VectorSRegister)(  VSR26_VectorSRegisterEnumValue))
+#define VSR27   ((VectorSRegister)(  VSR27_VectorSRegisterEnumValue))
+#define VSR28   ((VectorSRegister)(  VSR28_VectorSRegisterEnumValue))
+#define VSR29   ((VectorSRegister)(  VSR29_VectorSRegisterEnumValue))
+#define VSR30   ((VectorSRegister)(  VSR30_VectorSRegisterEnumValue))
+#define VSR31   ((VectorSRegister)(  VSR31_VectorSRegisterEnumValue))
+#define VSR32   ((VectorSRegister)(  VSR32_VectorSRegisterEnumValue))
+#define VSR33   ((VectorSRegister)(  VSR33_VectorSRegisterEnumValue))
+#define VSR34   ((VectorSRegister)(  VSR34_VectorSRegisterEnumValue))
+#define VSR35   ((VectorSRegister)(  VSR35_VectorSRegisterEnumValue))
+#define VSR36   ((VectorSRegister)(  VSR36_VectorSRegisterEnumValue))
+#define VSR37   ((VectorSRegister)(  VSR37_VectorSRegisterEnumValue))
+#define VSR38   ((VectorSRegister)(  VSR38_VectorSRegisterEnumValue))
+#define VSR39   ((VectorSRegister)(  VSR39_VectorSRegisterEnumValue))
+#define VSR40   ((VectorSRegister)(  VSR40_VectorSRegisterEnumValue))
+#define VSR41   ((VectorSRegister)(  VSR41_VectorSRegisterEnumValue))
+#define VSR42   ((VectorSRegister)(  VSR42_VectorSRegisterEnumValue))
+#define VSR43   ((VectorSRegister)(  VSR43_VectorSRegisterEnumValue))
+#define VSR44   ((VectorSRegister)(  VSR44_VectorSRegisterEnumValue))
+#define VSR45   ((VectorSRegister)(  VSR45_VectorSRegisterEnumValue))
+#define VSR46   ((VectorSRegister)(  VSR46_VectorSRegisterEnumValue))
+#define VSR47   ((VectorSRegister)(  VSR47_VectorSRegisterEnumValue))
+#define VSR48   ((VectorSRegister)(  VSR48_VectorSRegisterEnumValue))
+#define VSR49   ((VectorSRegister)(  VSR49_VectorSRegisterEnumValue))
+#define VSR50   ((VectorSRegister)(  VSR50_VectorSRegisterEnumValue))
+#define VSR51   ((VectorSRegister)(  VSR51_VectorSRegisterEnumValue))
+#define VSR52   ((VectorSRegister)(  VSR52_VectorSRegisterEnumValue))
+#define VSR53   ((VectorSRegister)(  VSR53_VectorSRegisterEnumValue))
+#define VSR54   ((VectorSRegister)(  VSR54_VectorSRegisterEnumValue))
+#define VSR55   ((VectorSRegister)(  VSR55_VectorSRegisterEnumValue))
+#define VSR56   ((VectorSRegister)(  VSR56_VectorSRegisterEnumValue))
+#define VSR57   ((VectorSRegister)(  VSR57_VectorSRegisterEnumValue))
+#define VSR58   ((VectorSRegister)(  VSR58_VectorSRegisterEnumValue))
+#define VSR59   ((VectorSRegister)(  VSR59_VectorSRegisterEnumValue))
+#define VSR60   ((VectorSRegister)(  VSR60_VectorSRegisterEnumValue))
+#define VSR61   ((VectorSRegister)(  VSR61_VectorSRegisterEnumValue))
+#define VSR62   ((VectorSRegister)(  VSR62_VectorSRegisterEnumValue))
+#define VSR63   ((VectorSRegister)(  VSR63_VectorSRegisterEnumValue))
+#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    // VSX 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
+REGISTER_DECLARATION(Register,      R6_ARG4,    R6);  // volatile
+REGISTER_DECLARATION(Register,      R7_ARG5,    R7);  // volatile
+REGISTER_DECLARATION(Register,      R8_ARG6,    R8);  // volatile
+REGISTER_DECLARATION(Register,      R9_ARG7,    R9);  // volatile
+REGISTER_DECLARATION(Register,      R10_ARG8,   R10); // volatile
+REGISTER_DECLARATION(FloatRegister, F0_SCRATCH, F0);  // volatile
+REGISTER_DECLARATION(FloatRegister, F1_RET,     F1);  // volatile
+REGISTER_DECLARATION(FloatRegister, F1_ARG1,    F1);  // volatile
+REGISTER_DECLARATION(FloatRegister, F2_ARG2,    F2);  // volatile
+REGISTER_DECLARATION(FloatRegister, F3_ARG3,    F3);  // volatile
+REGISTER_DECLARATION(FloatRegister, F4_ARG4,    F4);  // volatile
+REGISTER_DECLARATION(FloatRegister, F5_ARG5,    F5);  // volatile
+REGISTER_DECLARATION(FloatRegister, F6_ARG6,    F6);  // volatile
+REGISTER_DECLARATION(FloatRegister, F7_ARG7,    F7);  // volatile
+REGISTER_DECLARATION(FloatRegister, F8_ARG8,    F8);  // volatile
+REGISTER_DECLARATION(FloatRegister, F9_ARG9,    F9);  // volatile
+REGISTER_DECLARATION(FloatRegister, F10_ARG10,  F10); // volatile
+REGISTER_DECLARATION(FloatRegister, F11_ARG11,  F11); // volatile
+REGISTER_DECLARATION(FloatRegister, F12_ARG12,  F12); // volatile
+REGISTER_DECLARATION(FloatRegister, F13_ARG13,  F13); // volatile
+
+#ifndef DONT_USE_REGISTER_DEFINES
+#define R0_SCRATCH         AS_REGISTER(Register, R0)
+#define R1_SP              AS_REGISTER(Register, R1)
+#define R2_TOC             AS_REGISTER(Register, R2)
+#define R3_RET             AS_REGISTER(Register, R3)
+#define R3_ARG1            AS_REGISTER(Register, R3)
+#define R4_ARG2            AS_REGISTER(Register, R4)
+#define R5_ARG3            AS_REGISTER(Register, R5)
+#define R6_ARG4            AS_REGISTER(Register, R6)
+#define R7_ARG5            AS_REGISTER(Register, R7)
+#define R8_ARG6            AS_REGISTER(Register, R8)
+#define R9_ARG7            AS_REGISTER(Register, R9)
+#define R10_ARG8           AS_REGISTER(Register, R10)
+#define F0_SCRATCH         AS_REGISTER(FloatRegister, F0)
+#define F1_RET             AS_REGISTER(FloatRegister, F1)
+#define F1_ARG1            AS_REGISTER(FloatRegister, F1)
+#define F2_ARG2            AS_REGISTER(FloatRegister, F2)
+#define F3_ARG3            AS_REGISTER(FloatRegister, F3)
+#define F4_ARG4            AS_REGISTER(FloatRegister, F4)
+#define F5_ARG5            AS_REGISTER(FloatRegister, F5)
+#define F6_ARG6            AS_REGISTER(FloatRegister, F6)
+#define F7_ARG7            AS_REGISTER(FloatRegister, F7)
+#define F8_ARG8            AS_REGISTER(FloatRegister, F8)
+#define F9_ARG9            AS_REGISTER(FloatRegister, F9)
+#define F10_ARG10          AS_REGISTER(FloatRegister, F10)
+#define F11_ARG11          AS_REGISTER(FloatRegister, F11)
+#define F12_ARG12          AS_REGISTER(FloatRegister, F12)
+#define F13_ARG13          AS_REGISTER(FloatRegister, F13)
+#endif
+
+// Register declarations to be used in frame manager assembly code.
+// Use only non-volatile registers in order to keep values across C-calls.
+REGISTER_DECLARATION(Register, R14_bcp,        R14);
+REGISTER_DECLARATION(Register, R15_esp,        R15);
+REGISTER_DECLARATION(FloatRegister, F15_ftos,  F15);
+REGISTER_DECLARATION(Register, R16_thread,     R16);      // address of current thread
+REGISTER_DECLARATION(Register, R17_tos,        R17);      // address of Java tos (prepushed).
+REGISTER_DECLARATION(Register, R18_locals,     R18);      // address of first param slot (receiver).
+REGISTER_DECLARATION(Register, R19_method,     R19);      // address of current method
+#ifndef DONT_USE_REGISTER_DEFINES
+#define R14_bcp           AS_REGISTER(Register, R14)
+#define R15_esp           AS_REGISTER(Register, R15)
+#define F15_ftos          AS_REGISTER(FloatRegister, F15)
+#define R16_thread        AS_REGISTER(Register, R16)
+#define R17_tos           AS_REGISTER(Register, R17)
+#define R18_locals        AS_REGISTER(Register, R18)
+#define R19_method        AS_REGISTER(Register, R19)
+#define R21_sender_SP     AS_REGISTER(Register, R21)
+#define R23_method_handle AS_REGISTER(Register, R23)
+#endif
+
+// Temporary registers to be used within frame manager. We can use
+// the non-volatiles because the call stub has saved them.
+// Use only non-volatile registers in order to keep values across C-calls.
+REGISTER_DECLARATION(Register, R21_tmp1, R21);
+REGISTER_DECLARATION(Register, R22_tmp2, R22);
+REGISTER_DECLARATION(Register, R23_tmp3, R23);
+REGISTER_DECLARATION(Register, R24_tmp4, R24);
+REGISTER_DECLARATION(Register, R25_tmp5, R25);
+REGISTER_DECLARATION(Register, R26_tmp6, R26);
+REGISTER_DECLARATION(Register, R27_tmp7, R27);
+REGISTER_DECLARATION(Register, R28_tmp8, R28);
+REGISTER_DECLARATION(Register, R29_tmp9, R29);
+REGISTER_DECLARATION(Register, R24_dispatch_addr,     R24);
+REGISTER_DECLARATION(Register, R25_templateTableBase, R25);
+REGISTER_DECLARATION(Register, R26_monitor,           R26);
+REGISTER_DECLARATION(Register, R27_constPoolCache,    R27);
+REGISTER_DECLARATION(Register, R28_mdx,               R28);
+
+REGISTER_DECLARATION(Register, R19_inline_cache_reg, R19);
+REGISTER_DECLARATION(Register, R29_TOC, R29);
+
+#ifndef DONT_USE_REGISTER_DEFINES
+#define R21_tmp1         AS_REGISTER(Register, R21)
+#define R22_tmp2         AS_REGISTER(Register, R22)
+#define R23_tmp3         AS_REGISTER(Register, R23)
+#define R24_tmp4         AS_REGISTER(Register, R24)
+#define R25_tmp5         AS_REGISTER(Register, R25)
+#define R26_tmp6         AS_REGISTER(Register, R26)
+#define R27_tmp7         AS_REGISTER(Register, R27)
+#define R28_tmp8         AS_REGISTER(Register, R28)
+#define R29_tmp9         AS_REGISTER(Register, R29)
+//    Lmonitors  : monitor pointer
+//    LcpoolCache: constant pool cache
+//    mdx: method data index
+#define R24_dispatch_addr     AS_REGISTER(Register, R24)
+#define R25_templateTableBase AS_REGISTER(Register, R25)
+#define R26_monitor           AS_REGISTER(Register, R26)
+#define R27_constPoolCache    AS_REGISTER(Register, R27)
+#define R28_mdx               AS_REGISTER(Register, R28)
+
+#define R19_inline_cache_reg AS_REGISTER(Register, R19)
+#define R29_TOC AS_REGISTER(Register, R29)
+#endif
+
+// Scratch registers are volatile.
+REGISTER_DECLARATION(Register, R11_scratch1, R11);
+REGISTER_DECLARATION(Register, R12_scratch2, R12);
+#ifndef DONT_USE_REGISTER_DEFINES
+#define R11_scratch1   AS_REGISTER(Register, R11)
+#define R12_scratch2   AS_REGISTER(Register, R12)
+#endif
+
+#endif // CPU_PPC_VM_REGISTER_PPC_HPP