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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [config/] [pa/] [pa64-regs.h] - Diff between revs 38 and 154

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/* Configuration for GCC-compiler for PA-RISC.
/* Configuration for GCC-compiler for PA-RISC.
   Copyright (C) 1999, 2000, 2003, 2004, 2007 Free Software Foundation, Inc.
   Copyright (C) 1999, 2000, 2003, 2004, 2007 Free Software Foundation, Inc.
 
 
This file is part of GCC.
This file is part of GCC.
 
 
GCC is free software; you can redistribute it and/or modify
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
the Free Software Foundation; either version 3, or (at your option)
any later version.
any later version.
 
 
GCC is distributed in the hope that it will be useful,
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
GNU General Public License for more details.
 
 
You should have received a copy of the GNU General Public License
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */
<http://www.gnu.org/licenses/>.  */
 
 
/* Standard register usage.
/* Standard register usage.
 
 
   It is safe to refer to actual register numbers in this file.  */
   It is safe to refer to actual register numbers in this file.  */
 
 
/* Number of actual hardware registers.
/* Number of actual hardware registers.
   The hardware registers are assigned numbers for the compiler
   The hardware registers are assigned numbers for the compiler
   from 0 to just below FIRST_PSEUDO_REGISTER.
   from 0 to just below FIRST_PSEUDO_REGISTER.
   All registers that the compiler knows about must be given numbers,
   All registers that the compiler knows about must be given numbers,
   even those that are not normally considered general registers.
   even those that are not normally considered general registers.
 
 
   HP-PA 2.0w has 32 fullword registers and 32 floating point
   HP-PA 2.0w has 32 fullword registers and 32 floating point
   registers. However, the floating point registers behave
   registers. However, the floating point registers behave
   differently: the left and right halves of registers are addressable
   differently: the left and right halves of registers are addressable
   as 32 bit registers.
   as 32 bit registers.
 
 
   Due to limitations within GCC itself, we do not expose the left/right
   Due to limitations within GCC itself, we do not expose the left/right
   half addressability when in wide mode.  This is not a major performance
   half addressability when in wide mode.  This is not a major performance
   issue as using the halves independently triggers false dependency stalls
   issue as using the halves independently triggers false dependency stalls
   anyway.  */
   anyway.  */
 
 
#define FIRST_PSEUDO_REGISTER 61  /* 32 general regs + 28 fp regs +
#define FIRST_PSEUDO_REGISTER 61  /* 32 general regs + 28 fp regs +
                                     + 1 shift reg */
                                     + 1 shift reg */
 
 
/* 1 for registers that have pervasive standard uses
/* 1 for registers that have pervasive standard uses
   and are not available for the register allocator.
   and are not available for the register allocator.
 
 
   On the HP-PA, these are:
   On the HP-PA, these are:
   Reg 0        = 0 (hardware). However, 0 is used for condition code,
   Reg 0        = 0 (hardware). However, 0 is used for condition code,
                  so is not fixed.
                  so is not fixed.
   Reg 1        = ADDIL target/Temporary (hardware).
   Reg 1        = ADDIL target/Temporary (hardware).
   Reg 2        = Return Pointer
   Reg 2        = Return Pointer
   Reg 3        = Frame Pointer
   Reg 3        = Frame Pointer
   Reg 4        = Frame Pointer (>8k varying frame with HP compilers only)
   Reg 4        = Frame Pointer (>8k varying frame with HP compilers only)
   Reg 4-18     = Preserved Registers
   Reg 4-18     = Preserved Registers
   Reg 19       = Linkage Table Register in HPUX 8.0 shared library scheme.
   Reg 19       = Linkage Table Register in HPUX 8.0 shared library scheme.
   Reg 20-22    = Temporary Registers
   Reg 20-22    = Temporary Registers
   Reg 23-26    = Temporary/Parameter Registers
   Reg 23-26    = Temporary/Parameter Registers
   Reg 27       = Global Data Pointer (hp)
   Reg 27       = Global Data Pointer (hp)
   Reg 28       = Temporary/Return Value register
   Reg 28       = Temporary/Return Value register
   Reg 29       = Temporary/Static Chain/Return Value register #2
   Reg 29       = Temporary/Static Chain/Return Value register #2
   Reg 30       = stack pointer
   Reg 30       = stack pointer
   Reg 31       = Temporary/Millicode Return Pointer (hp)
   Reg 31       = Temporary/Millicode Return Pointer (hp)
 
 
   Freg 0-3     = Status Registers      -- Not known to the compiler.
   Freg 0-3     = Status Registers      -- Not known to the compiler.
   Freg 4-7     = Arguments/Return Value
   Freg 4-7     = Arguments/Return Value
   Freg 8-11    = Temporary Registers
   Freg 8-11    = Temporary Registers
   Freg 12-21   = Preserved Registers
   Freg 12-21   = Preserved Registers
   Freg 22-31 = Temporary Registers
   Freg 22-31 = Temporary Registers
 
 
*/
*/
 
 
#define FIXED_REGISTERS  \
#define FIXED_REGISTERS  \
 {0, 0, 0, 0, 0, 0, 0, 0, \
 {0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 1, 0, 0, 1, 0, \
  0, 0, 0, 1, 0, 0, 1, 0, \
  /* fp registers */      \
  /* fp registers */      \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0,                 \
  0, 0, 0, 0,                 \
  /* shift register */    \
  /* shift register */    \
  0}
  0}
 
 
/* 1 for registers not available across function calls.
/* 1 for registers not available across function calls.
   These must include the FIXED_REGISTERS and also any
   These must include the FIXED_REGISTERS and also any
   registers that can be used without being saved.
   registers that can be used without being saved.
   The latter must include the registers where values are returned
   The latter must include the registers where values are returned
   and the register where structure-value addresses are passed.
   and the register where structure-value addresses are passed.
   Aside from that, you can include as many other registers as you like.  */
   Aside from that, you can include as many other registers as you like.  */
#define CALL_USED_REGISTERS  \
#define CALL_USED_REGISTERS  \
 {1, 1, 1, 0, 0, 0, 0, 0, \
 {1, 1, 1, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 1, 1, 1, 1, 1, \
  0, 0, 0, 1, 1, 1, 1, 1, \
  1, 1, 1, 1, 1, 1, 1, 1, \
  1, 1, 1, 1, 1, 1, 1, 1, \
  /* fp registers */      \
  /* fp registers */      \
  1, 1, 1, 1, 1, 1, 1, 1, \
  1, 1, 1, 1, 1, 1, 1, 1, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 0, 0, 0, 0, 0, 0, \
  0, 0, 1, 1, 1, 1, 1, 1, \
  0, 0, 1, 1, 1, 1, 1, 1, \
  1, 1, 1, 1,             \
  1, 1, 1, 1,             \
  /* shift register */    \
  /* shift register */    \
  1}
  1}
 
 
#define CONDITIONAL_REGISTER_USAGE \
#define CONDITIONAL_REGISTER_USAGE \
{                                               \
{                                               \
  int i;                                        \
  int i;                                        \
  if (TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT)\
  if (TARGET_DISABLE_FPREGS || TARGET_SOFT_FLOAT)\
    {                                           \
    {                                           \
      for (i = FP_REG_FIRST; i <= FP_REG_LAST; i++)\
      for (i = FP_REG_FIRST; i <= FP_REG_LAST; i++)\
        fixed_regs[i] = call_used_regs[i] = 1;  \
        fixed_regs[i] = call_used_regs[i] = 1;  \
    }                                           \
    }                                           \
  if (flag_pic)                                 \
  if (flag_pic)                                 \
    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;    \
    fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;    \
}
}
 
 
/* Allocate the call used registers first.  This should minimize
/* Allocate the call used registers first.  This should minimize
   the number of registers that need to be saved (as call used
   the number of registers that need to be saved (as call used
   registers will generally not be allocated across a call).
   registers will generally not be allocated across a call).
 
 
   Experimentation has shown slightly better results by allocating
   Experimentation has shown slightly better results by allocating
   FP registers first.  We allocate the caller-saved registers more
   FP registers first.  We allocate the caller-saved registers more
   or less in reverse order to their allocation as arguments.  */
   or less in reverse order to their allocation as arguments.  */
 
 
#define REG_ALLOC_ORDER \
#define REG_ALLOC_ORDER \
 {                                      \
 {                                      \
  /* caller-saved fp regs.  */          \
  /* caller-saved fp regs.  */          \
  50, 51, 52, 53, 54, 55, 56, 57,       \
  50, 51, 52, 53, 54, 55, 56, 57,       \
  58, 59, 39, 38, 37, 36, 35, 34,       \
  58, 59, 39, 38, 37, 36, 35, 34,       \
  33, 32,                               \
  33, 32,                               \
  /* caller-saved general regs.  */     \
  /* caller-saved general regs.  */     \
  28, 31, 19, 20, 21, 22, 23, 24,       \
  28, 31, 19, 20, 21, 22, 23, 24,       \
  25, 26, 29,  2,                       \
  25, 26, 29,  2,                       \
  /* callee-saved fp regs.  */          \
  /* callee-saved fp regs.  */          \
  40, 41, 42, 43, 44, 45, 46, 47,       \
  40, 41, 42, 43, 44, 45, 46, 47,       \
  48, 49,                               \
  48, 49,                               \
  /* callee-saved general regs.  */     \
  /* callee-saved general regs.  */     \
   3,  4,  5,  6,  7,  8,  9, 10,       \
   3,  4,  5,  6,  7,  8,  9, 10,       \
  11, 12, 13, 14, 15, 16, 17, 18,       \
  11, 12, 13, 14, 15, 16, 17, 18,       \
  /* special registers.  */             \
  /* special registers.  */             \
   1, 27, 30,  0, 60}
   1, 27, 30,  0, 60}
 
 
 
 
/* Return number of consecutive hard regs needed starting at reg REGNO
/* Return number of consecutive hard regs needed starting at reg REGNO
   to hold something of mode MODE.
   to hold something of mode MODE.
   This is ordinarily the length in words of a value of mode MODE
   This is ordinarily the length in words of a value of mode MODE
   but can be less for certain modes in special long registers.
   but can be less for certain modes in special long registers.
 
 
   For PA64, GPRs and FPRs hold 64 bits worth.  We ignore the 32-bit
   For PA64, GPRs and FPRs hold 64 bits worth.  We ignore the 32-bit
   addressability of the FPRs and pretend each register holds precisely
   addressability of the FPRs and pretend each register holds precisely
   WORD_SIZE bits.  Note that SCmode values are placed in a single FPR.
   WORD_SIZE bits.  Note that SCmode values are placed in a single FPR.
   Thus, any patterns defined to operate on these values would have to
   Thus, any patterns defined to operate on these values would have to
   use the 32-bit addressability of the FPR registers.  */
   use the 32-bit addressability of the FPR registers.  */
#define HARD_REGNO_NREGS(REGNO, MODE)                                   \
#define HARD_REGNO_NREGS(REGNO, MODE)                                   \
  ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
  ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
 
 
/* These are the valid FP modes.  */
/* These are the valid FP modes.  */
#define VALID_FP_MODE_P(MODE)                                           \
#define VALID_FP_MODE_P(MODE)                                           \
  ((MODE) == SFmode || (MODE) == DFmode                                 \
  ((MODE) == SFmode || (MODE) == DFmode                                 \
   || (MODE) == SCmode || (MODE) == DCmode                              \
   || (MODE) == SCmode || (MODE) == DCmode                              \
   || (MODE) == QImode || (MODE) == HImode || (MODE) == SImode          \
   || (MODE) == QImode || (MODE) == HImode || (MODE) == SImode          \
   || (MODE) == DImode)
   || (MODE) == DImode)
 
 
/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
   On the HP-PA, the cpu registers can hold any mode.  We
   On the HP-PA, the cpu registers can hold any mode.  We
   force this to be an even register is it cannot hold the full mode.  */
   force this to be an even register is it cannot hold the full mode.  */
#define HARD_REGNO_MODE_OK(REGNO, MODE) \
#define HARD_REGNO_MODE_OK(REGNO, MODE) \
  ((REGNO) == 0                                                          \
  ((REGNO) == 0                                                          \
   ? (MODE) == CCmode || (MODE) == CCFPmode                             \
   ? (MODE) == CCmode || (MODE) == CCFPmode                             \
   /* Make wide modes be in aligned registers.  */                      \
   /* Make wide modes be in aligned registers.  */                      \
   : FP_REGNO_P (REGNO)                                                 \
   : FP_REGNO_P (REGNO)                                                 \
     ? (VALID_FP_MODE_P (MODE)                                          \
     ? (VALID_FP_MODE_P (MODE)                                          \
        && (GET_MODE_SIZE (MODE) <= 8                                   \
        && (GET_MODE_SIZE (MODE) <= 8                                   \
            || (GET_MODE_SIZE (MODE) == 16 && ((REGNO) & 1) == 0)        \
            || (GET_MODE_SIZE (MODE) == 16 && ((REGNO) & 1) == 0)        \
            || (GET_MODE_SIZE (MODE) == 32 && ((REGNO) & 3) == 0)))      \
            || (GET_MODE_SIZE (MODE) == 32 && ((REGNO) & 3) == 0)))      \
   : (GET_MODE_SIZE (MODE) <= UNITS_PER_WORD                            \
   : (GET_MODE_SIZE (MODE) <= UNITS_PER_WORD                            \
      || (GET_MODE_SIZE (MODE) == 2 * UNITS_PER_WORD                    \
      || (GET_MODE_SIZE (MODE) == 2 * UNITS_PER_WORD                    \
          && ((((REGNO) & 1) == 1 && (REGNO) <= 25) || (REGNO) == 28))  \
          && ((((REGNO) & 1) == 1 && (REGNO) <= 25) || (REGNO) == 28))  \
      || (GET_MODE_SIZE (MODE) == 4 * UNITS_PER_WORD                    \
      || (GET_MODE_SIZE (MODE) == 4 * UNITS_PER_WORD                    \
          && ((REGNO) & 3) == 3 && (REGNO) <= 23)))
          && ((REGNO) & 3) == 3 && (REGNO) <= 23)))
 
 
/* How to renumber registers for dbx and gdb.
/* How to renumber registers for dbx and gdb.
 
 
   Registers 0  - 31 remain unchanged.
   Registers 0  - 31 remain unchanged.
 
 
   Registers 32 - 59 are mapped to 72, 74, 76 ...
   Registers 32 - 59 are mapped to 72, 74, 76 ...
 
 
   Register 60 is mapped to 32.  */
   Register 60 is mapped to 32.  */
#define DBX_REGISTER_NUMBER(REGNO) \
#define DBX_REGISTER_NUMBER(REGNO) \
  ((REGNO) <= 31 ? (REGNO) : ((REGNO) < 60 ? (REGNO - 32) * 2 + 72 : 32))
  ((REGNO) <= 31 ? (REGNO) : ((REGNO) < 60 ? (REGNO - 32) * 2 + 72 : 32))
 
 
/* We must not use the DBX register numbers for the DWARF 2 CFA column
/* We must not use the DBX register numbers for the DWARF 2 CFA column
   numbers because that maps to numbers beyond FIRST_PSEUDO_REGISTER.
   numbers because that maps to numbers beyond FIRST_PSEUDO_REGISTER.
   Instead use the identity mapping.  */
   Instead use the identity mapping.  */
#define DWARF_FRAME_REGNUM(REG) REG
#define DWARF_FRAME_REGNUM(REG) REG
 
 
/* Define the classes of registers for register constraints in the
/* Define the classes of registers for register constraints in the
   machine description.  Also define ranges of constants.
   machine description.  Also define ranges of constants.
 
 
   One of the classes must always be named ALL_REGS and include all hard regs.
   One of the classes must always be named ALL_REGS and include all hard regs.
   If there is more than one class, another class must be named NO_REGS
   If there is more than one class, another class must be named NO_REGS
   and contain no registers.
   and contain no registers.
 
 
   The name GENERAL_REGS must be the name of a class (or an alias for
   The name GENERAL_REGS must be the name of a class (or an alias for
   another name such as ALL_REGS).  This is the class of registers
   another name such as ALL_REGS).  This is the class of registers
   that is allowed by "g" or "r" in a register constraint.
   that is allowed by "g" or "r" in a register constraint.
   Also, registers outside this class are allocated only when
   Also, registers outside this class are allocated only when
   instructions express preferences for them.
   instructions express preferences for them.
 
 
   The classes must be numbered in nondecreasing order; that is,
   The classes must be numbered in nondecreasing order; that is,
   a larger-numbered class must never be contained completely
   a larger-numbered class must never be contained completely
   in a smaller-numbered class.
   in a smaller-numbered class.
 
 
   For any two classes, it is very desirable that there be another
   For any two classes, it is very desirable that there be another
   class that represents their union.  */
   class that represents their union.  */
 
 
  /* The HP-PA has four kinds of registers: general regs, 1.0 fp regs,
  /* The HP-PA has four kinds of registers: general regs, 1.0 fp regs,
     1.1 fp regs, and the high 1.1 fp regs, to which the operands of
     1.1 fp regs, and the high 1.1 fp regs, to which the operands of
     fmpyadd and fmpysub are restricted.  */
     fmpyadd and fmpysub are restricted.  */
 
 
enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FPUPPER_REGS, FP_REGS,
enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FPUPPER_REGS, FP_REGS,
                 GENERAL_OR_FP_REGS, SHIFT_REGS, ALL_REGS, LIM_REG_CLASSES};
                 GENERAL_OR_FP_REGS, SHIFT_REGS, ALL_REGS, LIM_REG_CLASSES};
 
 
#define N_REG_CLASSES (int) LIM_REG_CLASSES
#define N_REG_CLASSES (int) LIM_REG_CLASSES
 
 
/* Give names of register classes as strings for dump file.  */
/* Give names of register classes as strings for dump file.  */
 
 
#define REG_CLASS_NAMES \
#define REG_CLASS_NAMES \
  {"NO_REGS", "R1_REGS", "GENERAL_REGS", "FPUPPER_REGS", "FP_REGS", \
  {"NO_REGS", "R1_REGS", "GENERAL_REGS", "FPUPPER_REGS", "FP_REGS", \
   "GENERAL_OR_FP_REGS", "SHIFT_REGS", "ALL_REGS"}
   "GENERAL_OR_FP_REGS", "SHIFT_REGS", "ALL_REGS"}
 
 
/* Define which registers fit in which classes.
/* Define which registers fit in which classes.
   This is an initializer for a vector of HARD_REG_SET
   This is an initializer for a vector of HARD_REG_SET
   of length N_REG_CLASSES. Register 0, the "condition code" register,
   of length N_REG_CLASSES. Register 0, the "condition code" register,
   is in no class.  */
   is in no class.  */
 
 
#define REG_CLASS_CONTENTS      \
#define REG_CLASS_CONTENTS      \
 {{0x00000000, 0x00000000},     /* NO_REGS */                   \
 {{0x00000000, 0x00000000},     /* NO_REGS */                   \
  {0x00000002, 0x00000000},     /* R1_REGS */                   \
  {0x00000002, 0x00000000},     /* R1_REGS */                   \
  {0xfffffffe, 0x00000000},     /* GENERAL_REGS */              \
  {0xfffffffe, 0x00000000},     /* GENERAL_REGS */              \
  {0x00000000, 0x00000000},     /* FPUPPER_REGS */                      \
  {0x00000000, 0x00000000},     /* FPUPPER_REGS */                      \
  {0x00000000, 0x0fffffff},     /* FP_REGS */                   \
  {0x00000000, 0x0fffffff},     /* FP_REGS */                   \
  {0xfffffffe, 0x0fffffff},     /* GENERAL_OR_FP_REGS */        \
  {0xfffffffe, 0x0fffffff},     /* GENERAL_OR_FP_REGS */        \
  {0x00000000, 0x10000000},     /* SHIFT_REGS */                \
  {0x00000000, 0x10000000},     /* SHIFT_REGS */                \
  {0xfffffffe, 0x1fffffff}}     /* ALL_REGS */
  {0xfffffffe, 0x1fffffff}}     /* ALL_REGS */
 
 
/* Defines invalid mode changes.
/* Defines invalid mode changes.
 
 
   SImode loads to floating-point registers are not zero-extended.
   SImode loads to floating-point registers are not zero-extended.
   The definition for LOAD_EXTEND_OP specifies that integer loads
   The definition for LOAD_EXTEND_OP specifies that integer loads
   narrower than BITS_PER_WORD will be zero-extended.  As a result,
   narrower than BITS_PER_WORD will be zero-extended.  As a result,
   we inhibit changes from SImode unless they are to a mode that is
   we inhibit changes from SImode unless they are to a mode that is
   identical in size.  */
   identical in size.  */
 
 
#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS)               \
#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS)               \
  ((FROM) == SImode && GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO)       \
  ((FROM) == SImode && GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO)       \
   ? reg_classes_intersect_p (CLASS, FP_REGS) : 0)
   ? reg_classes_intersect_p (CLASS, FP_REGS) : 0)
 
 
/* Return the class number of the smallest class containing
/* Return the class number of the smallest class containing
   reg number REGNO.  This could be a conditional expression
   reg number REGNO.  This could be a conditional expression
   or could index an array.  */
   or could index an array.  */
 
 
#define REGNO_REG_CLASS(REGNO)                                          \
#define REGNO_REG_CLASS(REGNO)                                          \
  ((REGNO) == 0 ? NO_REGS                                                \
  ((REGNO) == 0 ? NO_REGS                                                \
   : (REGNO) == 1 ? R1_REGS                                             \
   : (REGNO) == 1 ? R1_REGS                                             \
   : (REGNO) < 32 ? GENERAL_REGS                                        \
   : (REGNO) < 32 ? GENERAL_REGS                                        \
   : (REGNO) < 60 ? FP_REGS                                             \
   : (REGNO) < 60 ? FP_REGS                                             \
   : SHIFT_REGS)
   : SHIFT_REGS)
 
 
 
 
/* Get reg_class from a letter such as appears in the machine description.  */
/* Get reg_class from a letter such as appears in the machine description.  */
/* Keep 'x' for backward compatibility with user asm.  */
/* Keep 'x' for backward compatibility with user asm.  */
#define REG_CLASS_FROM_LETTER(C) \
#define REG_CLASS_FROM_LETTER(C) \
  ((C) == 'f' ? FP_REGS :                                       \
  ((C) == 'f' ? FP_REGS :                                       \
   (C) == 'y' ? FP_REGS :                                       \
   (C) == 'y' ? FP_REGS :                                       \
   (C) == 'x' ? FP_REGS :                                       \
   (C) == 'x' ? FP_REGS :                                       \
   (C) == 'q' ? SHIFT_REGS :                                    \
   (C) == 'q' ? SHIFT_REGS :                                    \
   (C) == 'a' ? R1_REGS :                                       \
   (C) == 'a' ? R1_REGS :                                       \
   (C) == 'Z' ? ALL_REGS : NO_REGS)
   (C) == 'Z' ? ALL_REGS : NO_REGS)
 
 
 
 
/* Return the maximum number of consecutive registers
/* Return the maximum number of consecutive registers
   needed to represent mode MODE in a register of class CLASS.  */
   needed to represent mode MODE in a register of class CLASS.  */
#define CLASS_MAX_NREGS(CLASS, MODE)                                    \
#define CLASS_MAX_NREGS(CLASS, MODE)                                    \
  ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
  ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
 
 
/* 1 if N is a possible register number for function argument passing.  */
/* 1 if N is a possible register number for function argument passing.  */
 
 
#define FUNCTION_ARG_REGNO_P(N) \
#define FUNCTION_ARG_REGNO_P(N) \
  ((((N) >= 19) && (N) <= 26) \
  ((((N) >= 19) && (N) <= 26) \
   || (! TARGET_SOFT_FLOAT && (N) >= 32 && (N) <= 39))
   || (! TARGET_SOFT_FLOAT && (N) >= 32 && (N) <= 39))
 
 
/* How to refer to registers in assembler output.
/* How to refer to registers in assembler output.
   This sequence is indexed by compiler's hard-register-number (see above).  */
   This sequence is indexed by compiler's hard-register-number (see above).  */
 
 
#define REGISTER_NAMES \
#define REGISTER_NAMES \
{"%r0",   "%r1",    "%r2",   "%r3",    "%r4",   "%r5",    "%r6",   "%r7",    \
{"%r0",   "%r1",    "%r2",   "%r3",    "%r4",   "%r5",    "%r6",   "%r7",    \
 "%r8",   "%r9",    "%r10",  "%r11",   "%r12",  "%r13",   "%r14",  "%r15",   \
 "%r8",   "%r9",    "%r10",  "%r11",   "%r12",  "%r13",   "%r14",  "%r15",   \
 "%r16",  "%r17",   "%r18",  "%r19",   "%r20",  "%r21",   "%r22",  "%r23",   \
 "%r16",  "%r17",   "%r18",  "%r19",   "%r20",  "%r21",   "%r22",  "%r23",   \
 "%r24",  "%r25",   "%r26",  "%r27",   "%r28",  "%r29",   "%r30",  "%r31",   \
 "%r24",  "%r25",   "%r26",  "%r27",   "%r28",  "%r29",   "%r30",  "%r31",   \
 "%fr4",  "%fr5",   "%fr6",  "%fr7",   "%fr8",  "%fr9",   "%fr10", "%fr11",  \
 "%fr4",  "%fr5",   "%fr6",  "%fr7",   "%fr8",  "%fr9",   "%fr10", "%fr11",  \
 "%fr12", "%fr13",  "%fr14", "%fr15",  "%fr16", "%fr17",  "%fr18", "%fr19",  \
 "%fr12", "%fr13",  "%fr14", "%fr15",  "%fr16", "%fr17",  "%fr18", "%fr19",  \
 "%fr20", "%fr21",  "%fr22", "%fr23",  "%fr24", "%fr25",  "%fr26", "%fr27",  \
 "%fr20", "%fr21",  "%fr22", "%fr23",  "%fr24", "%fr25",  "%fr26", "%fr27",  \
 "%fr28", "%fr29",  "%fr30", "%fr31", "SAR"}
 "%fr28", "%fr29",  "%fr30", "%fr31", "SAR"}
 
 
#define ADDITIONAL_REGISTER_NAMES \
#define ADDITIONAL_REGISTER_NAMES \
 {{"%cr11",60}}
 {{"%cr11",60}}
 
 
#define FP_SAVED_REG_LAST 49
#define FP_SAVED_REG_LAST 49
#define FP_SAVED_REG_FIRST 40
#define FP_SAVED_REG_FIRST 40
#define FP_REG_STEP 1
#define FP_REG_STEP 1
#define FP_REG_FIRST 32
#define FP_REG_FIRST 32
#define FP_REG_LAST 59
#define FP_REG_LAST 59
 
 

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