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diff --git a/gcc-1.40/config/tm-vax.h b/gcc-1.40/config/tm-vax.h
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+++ b/gcc-1.40/config/tm-vax.h
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+/* Definitions of target machine for GNU compiler.  Vax version.
+   Copyright (C) 1987, 1988 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GNU CC 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+
+/* Names to predefine in the preprocessor for this target machine.  */
+
+#define CPP_PREDEFINES "-Dvax -Dunix"
+
+/* Print subsidiary information on the compiler version in use.  */
+
+#define TARGET_VERSION fprintf (stderr, " (vax)");
+
+/* Run-time compilation parameters selecting different hardware subsets.  */
+
+extern int target_flags;
+
+/* Macros used in the machine description to test the flags.  */
+
+/* Nonzero if compiling code that Unix assembler can assemble.  */
+#define TARGET_UNIX_ASM (target_flags & 1)
+
+/* Nonzero if compiling with VAX-11 "C" style structure alignment */
+#define	TARGET_VAXC_ALIGNMENT (target_flags & 2)
+
+/* Nonzero if compiling with `G'-format floating point */
+#define TARGET_G_FLOAT (target_flags & 4)
+
+/* Macro to define tables used to set the flags.
+   This is a list in braces of pairs in braces,
+   each pair being { "NAME", VALUE }
+   where VALUE is the bits to set or minus the bits to clear.
+   An empty string NAME is used to identify the default VALUE.  */
+
+#define TARGET_SWITCHES  \
+  { {"unix", 1},  \
+    {"gnu", -1},  \
+    {"vaxc-alignment", 2}, \
+    {"g", 4}, \
+    {"g-float", 4}, \
+    {"d", -4},	\
+    {"d-float", -4}, \
+    { "", TARGET_DEFAULT}}
+
+/* Default target_flags if no switches specified.  */
+
+#ifndef TARGET_DEFAULT
+#define TARGET_DEFAULT 1
+#endif
+
+/* Target machine storage layout */
+
+/* Define this if most significant bit is lowest numbered
+   in instructions that operate on numbered bit-fields.
+   This is not true on the vax.  */
+/* #define BITS_BIG_ENDIAN */
+
+/* Define this if most significant byte of a word is the lowest numbered.  */
+/* That is not true on the vax.  */
+/* #define BYTES_BIG_ENDIAN */
+
+/* Define this if most significant word of a multiword number is numbered.  */
+/* This is not true on the vax.  */
+/* #define WORDS_BIG_ENDIAN */
+
+/* Number of bits in an addressible storage unit */
+#define BITS_PER_UNIT 8
+
+/* Width in bits of a "word", which is the contents of a machine register.
+   Note that this is not necessarily the width of data type `int';
+   if using 16-bit ints on a 68000, this would still be 32.
+   But on a machine with 16-bit registers, this would be 16.  */
+#define BITS_PER_WORD 32
+
+/* Width of a word, in units (bytes).  */
+#define UNITS_PER_WORD 4
+
+/* Width in bits of a pointer.
+   See also the macro `Pmode' defined below.  */
+#define POINTER_SIZE 32
+
+/* Allocation boundary (in *bits*) for storing pointers in memory.  */
+#define POINTER_BOUNDARY (TARGET_VAXC_ALIGNMENT ? 8 : 32)
+
+/* Allocation boundary (in *bits*) for storing arguments in argument list.  */
+#define PARM_BOUNDARY 32
+
+/* Allocation boundary (in *bits*) for the code of a function.  */
+#define FUNCTION_BOUNDARY 16
+
+/* Alignment of field after `int : 0' in a structure.  */
+#define EMPTY_FIELD_BOUNDARY (TARGET_VAXC_ALIGNMENT ? 8 : 32)
+
+/* Every structure's size must be a multiple of this.  */
+#define STRUCTURE_SIZE_BOUNDARY 8
+
+/* A bitfield declared as `int' forces `int' alignment for the struct.  */
+#define PCC_BITFIELD_TYPE_MATTERS (! TARGET_VAXC_ALIGNMENT)
+
+/* No data type wants to be aligned rounder than this.  */
+#define BIGGEST_ALIGNMENT (TARGET_VAXC_ALIGNMENT ? 8 : 32)
+
+/* Define this if move instructions will actually fail to work
+   when given unaligned data.  */
+/* #define STRICT_ALIGNMENT */
+
+/* Standard register usage.  */
+
+/* Number of actual hardware registers.
+   The hardware registers are assigned numbers for the compiler
+   from 0 to just below FIRST_PSEUDO_REGISTER.
+   All registers that the compiler knows about must be given numbers,
+   even those that are not normally considered general registers.  */
+#define FIRST_PSEUDO_REGISTER 16
+
+/* 1 for registers that have pervasive standard uses
+   and are not available for the register allocator.
+   On the vax, these are the AP, FP, SP and PC.  */
+#define FIXED_REGISTERS {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1}
+
+/* 1 for registers not available across function calls.
+   These must include the FIXED_REGISTERS and also any
+   registers that can be used without being saved.
+   The latter must include the registers where values are returned
+   and the register where structure-value addresses are passed.
+   Aside from that, you can include as many other registers as you like.  */
+#define CALL_USED_REGISTERS {1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1}
+
+/* Return number of consecutive hard regs needed starting at reg REGNO
+   to hold something 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.
+   On the vax, all registers are one word long.  */
+#define HARD_REGNO_NREGS(REGNO, MODE)   \
+ ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
+
+/* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
+   On the vax, all registers can hold all modes.  */
+#define HARD_REGNO_MODE_OK(REGNO, MODE) 1
+
+/* Value is 1 if it is a good idea to tie two pseudo registers
+   when one has mode MODE1 and one has mode MODE2.
+   If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
+   for any hard reg, then this must be 0 for correct output.  */
+#define MODES_TIEABLE_P(MODE1, MODE2)  1
+
+/* Specify the registers used for certain standard purposes.
+   The values of these macros are register numbers.  */
+
+/* Vax pc is overloaded on a register.  */
+#define PC_REGNUM 15
+
+/* Register to use for pushing function arguments.  */
+#define STACK_POINTER_REGNUM 14
+
+/* Base register for access to local variables of the function.  */
+#define FRAME_POINTER_REGNUM 13
+
+/* Value should be nonzero if functions must have frame pointers.
+   Zero means the frame pointer need not be set up (and parms
+   may be accessed via the stack pointer) in functions that seem suitable.
+   This is computed in `reload', in reload1.c.  */
+#define FRAME_POINTER_REQUIRED 1
+
+/* Base register for access to arguments of the function.  */
+#define ARG_POINTER_REGNUM 12
+
+/* Register in which static-chain is passed to a function.  */
+#define STATIC_CHAIN_REGNUM 0
+
+/* Register in which address to store a structure value
+   is passed to a function.  */
+#define STRUCT_VALUE_REGNUM 1
+
+/* Define the classes of registers for register constraints in the
+   machine description.  Also define ranges of constants.
+
+   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
+   and contain no registers.
+
+   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
+   that is allowed by "g" or "r" in a register constraint.
+   Also, registers outside this class are allocated only when
+   instructions express preferences for them.
+
+   The classes must be numbered in nondecreasing order; that is,
+   a larger-numbered class must never be contained completely
+   in a smaller-numbered class.
+
+   For any two classes, it is very desirable that there be another
+   class that represents their union.  */
+   
+/* The vax has only one kind of registers, so NO_REGS and ALL_REGS
+   are the only classes.  */
+
+enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES };
+
+#define N_REG_CLASSES (int) LIM_REG_CLASSES
+
+/* Since GENERAL_REGS is the same class as ALL_REGS,
+   don't give it a different class number; just make it an alias.  */
+
+#define GENERAL_REGS ALL_REGS
+
+/* Give names of register classes as strings for dump file.   */
+
+#define REG_CLASS_NAMES \
+ {"NO_REGS", "ALL_REGS" }
+
+/* Define which registers fit in which classes.
+   This is an initializer for a vector of HARD_REG_SET
+   of length N_REG_CLASSES.  */
+
+#define REG_CLASS_CONTENTS {0, 0xffff}
+
+/* The same information, inverted:
+   Return the class number of the smallest class containing
+   reg number REGNO.  This could be a conditional expression
+   or could index an array.  */
+
+#define REGNO_REG_CLASS(REGNO) ALL_REGS
+
+/* The class value for index registers, and the one for base regs.  */
+
+#define INDEX_REG_CLASS ALL_REGS
+#define BASE_REG_CLASS ALL_REGS
+
+/* Get reg_class from a letter such as appears in the machine description.  */
+
+#define REG_CLASS_FROM_LETTER(C) NO_REGS
+
+/* The letters I, J, K, L and M in a register constraint string
+   can be used to stand for particular ranges of immediate operands.
+   This macro defines what the ranges are.
+   C is the letter, and VALUE is a constant value.
+   Return 1 if VALUE is in the range specified by C.  */
+
+#define CONST_OK_FOR_LETTER_P(VALUE, C)  0
+
+/* Similar, but for floating constants, and defining letters G and H.
+   Here VALUE is the CONST_DOUBLE rtx itself.  */
+
+#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 1
+
+/* Given an rtx X being reloaded into a reg required to be
+   in class CLASS, return the class of reg to actually use.
+   In general this is just CLASS; but on some machines
+   in some cases it is preferable to use a more restrictive class.  */
+
+#define PREFERRED_RELOAD_CLASS(X,CLASS)  (CLASS)
+
+/* Return the maximum number of consecutive registers
+   needed to represent mode MODE in a register of class CLASS.  */
+/* On the vax, this is always the size of MODE in words,
+   since all registers are the same size.  */
+#define CLASS_MAX_NREGS(CLASS, MODE)	\
+ ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
+
+/* Stack layout; function entry, exit and calling.  */
+
+/* Define this if pushing a word on the stack
+   makes the stack pointer a smaller address.  */
+#define STACK_GROWS_DOWNWARD
+
+/* Define this if longjmp restores from saved registers
+   rather than from what setjmp saved.  */
+#define LONGJMP_RESTORE_FROM_STACK
+
+/* Define this if the nominal address of the stack frame
+   is at the high-address end of the local variables;
+   that is, each additional local variable allocated
+   goes at a more negative offset in the frame.  */
+#define FRAME_GROWS_DOWNWARD
+
+/* Offset within stack frame to start allocating local variables at.
+   If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
+   first local allocated.  Otherwise, it is the offset to the BEGINNING
+   of the first local allocated.  */
+#define STARTING_FRAME_OFFSET 0
+
+/* If we generate an insn to push BYTES bytes,
+   this says how many the stack pointer really advances by.
+   On the vax, -(sp) pushes only the bytes of the operands.  */
+#define PUSH_ROUNDING(BYTES) (BYTES)
+
+/* Offset of first parameter from the argument pointer register value.  */
+#define FIRST_PARM_OFFSET(FNDECL) 4
+
+/* Value is 1 if returning from a function call automatically
+   pops the arguments described by the number-of-args field in the call.
+   FUNTYPE is the data type of the function (as a tree),
+   or for a library call it is an identifier node for the subroutine name.
+
+   On the Vax, the RET insn always pops all the args for any function.  */
+
+#define RETURN_POPS_ARGS(FUNTYPE) 1
+
+/* Define how to find the value returned by a function.
+   VALTYPE is the data type of the value (as a tree).
+   If the precise function being called is known, FUNC is its FUNCTION_DECL;
+   otherwise, FUNC is 0.  */
+
+/* On the Vax the return value is in R0 regardless.  */   
+
+#define FUNCTION_VALUE(VALTYPE, FUNC)  \
+  gen_rtx (REG, TYPE_MODE (VALTYPE), 0)
+
+/* Define how to find the value returned by a library function
+   assuming the value has mode MODE.  */
+
+/* On the Vax the return value is in R0 regardless.  */   
+
+#define LIBCALL_VALUE(MODE)  gen_rtx (REG, MODE, 0)
+
+/* Define this if PCC uses the nonreentrant convention for returning
+   structure and union values.  */
+
+#define PCC_STATIC_STRUCT_RETURN
+
+/* 1 if N is a possible register number for a function value.
+   On the Vax, R0 is the only register thus used.  */
+
+#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0)
+
+/* 1 if N is a possible register number for function argument passing.
+   On the Vax, no registers are used in this way.  */
+
+#define FUNCTION_ARG_REGNO_P(N) 0
+
+/* Define a data type for recording info about an argument list
+   during the scan of that argument list.  This data type should
+   hold all necessary information about the function itself
+   and about the args processed so far, enough to enable macros
+   such as FUNCTION_ARG to determine where the next arg should go.
+
+   On the vax, this is a single integer, which is a number of bytes
+   of arguments scanned so far.  */
+
+#define CUMULATIVE_ARGS int
+
+/* Initialize a variable CUM of type CUMULATIVE_ARGS
+   for a call to a function whose data type is FNTYPE.
+   For a library call, FNTYPE is 0.
+
+   On the vax, the offset starts at 0.  */
+
+#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE)	\
+ ((CUM) = 0)
+
+/* Update the data in CUM to advance over an argument
+   of mode MODE and data type TYPE.
+   (TYPE is null for libcalls where that information may not be available.)  */
+
+#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED)	\
+ ((CUM) += ((MODE) != BLKmode			\
+	    ? (GET_MODE_SIZE (MODE) + 3) & ~3	\
+	    : (int_size_in_bytes (TYPE) + 3) & ~3))
+
+/* Define where to put the arguments to a function.
+   Value is zero to push the argument on the stack,
+   or a hard register in which to store the argument.
+
+   MODE is the argument's machine mode.
+   TYPE is the data type of the argument (as a tree).
+    This is null for libcalls where that information may
+    not be available.
+   CUM is a variable of type CUMULATIVE_ARGS which gives info about
+    the preceding args and about the function being called.
+   NAMED is nonzero if this argument is a named parameter
+    (otherwise it is an extra parameter matching an ellipsis).  */
+
+/* On the vax all args are pushed.  */   
+
+#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) 0
+
+/* This macro generates the assembly code for function entry.
+   FILE is a stdio stream to output the code to.
+   SIZE is an int: how many units of temporary storage to allocate.
+   Refer to the array `regs_ever_live' to determine which registers
+   to save; `regs_ever_live[I]' is nonzero if register number I
+   is ever used in the function.  This macro is responsible for
+   knowing which registers should not be saved even if used.  */
+
+#define FUNCTION_PROLOGUE(FILE, SIZE)     \
+{ register int regno;						\
+  register int mask = 0;					\
+  extern char call_used_regs[];					\
+  for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)	\
+    if (regs_ever_live[regno] && !call_used_regs[regno])	\
+       mask |= 1 << regno;					\
+  fprintf (FILE, "\t.word 0x%x\n", mask);			\
+  MAYBE_VMS_FUNCTION_PROLOGUE(FILE)				\
+  if ((SIZE) >= 64) fprintf (FILE, "\tmovab %d(sp),sp\n", -SIZE);\
+  else if (SIZE) fprintf (FILE, "\tsubl2 $%d,sp\n", (SIZE)); }
+
+/* tm-vms.h redefines this.  */
+#define MAYBE_VMS_FUNCTION_PROLOGUE(FILE)
+
+/* Output assembler code to FILE to increment profiler label # LABELNO
+   for profiling a function entry.  */
+
+#define FUNCTION_PROFILER(FILE, LABELNO)  \
+   fprintf (FILE, "\tmovab LP%d,r0\n\tjsb mcount\n", (LABELNO));
+
+/* Output assembler code to FILE to initialize this source file's
+   basic block profiling info, if that has not already been done.  */
+
+#define FUNCTION_BLOCK_PROFILER(FILE, LABELNO)  \
+  fprintf (FILE, "\ttstl LPBX0\n\tjneq LPI%d\n\tpushal LPBX0\n\tcalls $1,__bb_init_func\nLPI%d:\n",  \
+	   LABELNO, LABELNO);
+
+/* Output assembler code to FILE to increment the entry-count for
+   the BLOCKNO'th basic block in this source file.  This is a real pain in the
+   sphincter on a VAX, since we do not want to change any of the bits in the
+   processor status word.  The way it is done here, it is pushed onto the stack
+   before any flags have changed, and then the stack is fixed up to account for
+   the fact that the instruction to restore the flags only reads a word.
+   It may seem a bit clumsy, but at least it works.
+*/
+
+#define BLOCK_PROFILER(FILE, BLOCKNO)	\
+  fprintf (FILE, "\tmovpsl -(sp)\n\tmovw (sp),2(sp)\n\taddl2 $2,sp\n\taddl2 $1,LPBX2+%d\n\tbicpsw $255\n\tbispsw (sp)+\n", \
+		4 * BLOCKNO)
+
+/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
+   the stack pointer does not matter.  The value is tested only in
+   functions that have frame pointers.
+   No definition is equivalent to always zero.  */
+
+#define EXIT_IGNORE_STACK 1
+
+/* This macro generates the assembly code for function exit,
+   on machines that need it.  If FUNCTION_EPILOGUE is not defined
+   then individual return instructions are generated for each
+   return statement.  Args are same as for FUNCTION_PROLOGUE.  */
+
+/* #define FUNCTION_EPILOGUE(FILE, SIZE)  */
+
+/* If the memory address ADDR is relative to the frame pointer,
+   correct it to be relative to the stack pointer instead.
+   This is for when we don't use a frame pointer.
+   ADDR should be a variable name.  */
+
+#define FIX_FRAME_POINTER_ADDRESS(ADDR,DEPTH) abort ();
+
+/* Addressing modes, and classification of registers for them.  */
+
+#define HAVE_POST_INCREMENT
+/* #define HAVE_POST_DECREMENT */
+
+#define HAVE_PRE_DECREMENT
+/* #define HAVE_PRE_INCREMENT */
+
+/* Macros to check register numbers against specific register classes.  */
+
+/* These assume that REGNO is a hard or pseudo reg number.
+   They give nonzero only if REGNO is a hard reg of the suitable class
+   or a pseudo reg currently allocated to a suitable hard reg.
+   Since they use reg_renumber, they are safe only once reg_renumber
+   has been allocated, which happens in local-alloc.c.  */
+
+#define REGNO_OK_FOR_INDEX_P(regno)  \
+((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0)
+#define REGNO_OK_FOR_BASE_P(regno) \
+((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0)
+
+/* Maximum number of registers that can appear in a valid memory address.  */
+
+#define MAX_REGS_PER_ADDRESS 2
+
+/* 1 if X is an rtx for a constant that is a valid address.  */
+
+#define CONSTANT_ADDRESS_P(X) (CONSTANT_P (X) && LEGITIMATE_CONSTANT_P (X))
+
+/* Nonzero if the constant value X is a legitimate general operand.
+   It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE.  */
+
+#ifdef NO_EXTERNAL_INDIRECT_ADDRESS
+#define LEGITIMATE_CONSTANT_P(X) \
+ (! (GET_CODE ((X)) == CONST					\
+     && GET_CODE (XEXP ((X), 0)) == PLUS			\
+     && GET_CODE (XEXP (XEXP ((X), 0), 0)) == SYMBOL_REF	\
+     && EXTERNAL_SYMBOL_P (XEXP (XEXP ((X), 0), 0))))
+#else
+#define LEGITIMATE_CONSTANT_P(X) 1
+#endif
+
+/* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
+   and check its validity for a certain class.
+   We have two alternate definitions for each of them.
+   The usual definition accepts all pseudo regs; the other rejects
+   them unless they have been allocated suitable hard regs.
+   The symbol REG_OK_STRICT causes the latter definition to be used.
+
+   Most source files want to accept pseudo regs in the hope that
+   they will get allocated to the class that the insn wants them to be in.
+   Source files for reload pass need to be strict.
+   After reload, it makes no difference, since pseudo regs have
+   been eliminated by then.  */
+
+#ifndef REG_OK_STRICT
+
+/* Nonzero if X is a hard reg that can be used as an index
+   or if it is a pseudo reg.  */
+#define REG_OK_FOR_INDEX_P(X) 1
+/* Nonzero if X is a hard reg that can be used as a base reg
+   or if it is a pseudo reg.  */
+#define REG_OK_FOR_BASE_P(X) 1
+
+#else
+
+/* Nonzero if X is a hard reg that can be used as an index.  */
+#define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
+/* Nonzero if X is a hard reg that can be used as a base reg.  */
+#define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
+
+#endif
+
+/* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
+   that is a valid memory address for an instruction.
+   The MODE argument is the machine mode for the MEM expression
+   that wants to use this address.
+
+   The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS,
+   except for CONSTANT_ADDRESS_P which is actually machine-independent.  */
+
+/* 1 if X is an address that we could indirect through.  */
+#ifdef NO_EXTERNAL_INDIRECT_ADDRESS
+#define INDIRECTABLE_CONSTANT_ADDRESS_P(X)   				\
+  (GET_CODE (X) == LABEL_REF 						\
+   || (GET_CODE (X) == SYMBOL_REF && !EXTERNAL_SYMBOL_P (X))		\
+   || (GET_CODE (X) == CONST && LEGITIMATE_CONSTANT_P(X))		\
+   || GET_CODE (X) == CONST_INT)
+
+#define INDIRECTABLE_ADDRESS_P(X)  \
+  (INDIRECTABLE_CONSTANT_ADDRESS_P (X) 					\
+   || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X))			\
+   || (GET_CODE (X) == PLUS						\
+       && GET_CODE (XEXP (X, 0)) == REG					\
+       && REG_OK_FOR_BASE_P (XEXP (X, 0))				\
+       && INDIRECTABLE_CONSTANT_ADDRESS_P (XEXP (X, 1))))
+#else
+#define INDIRECTABLE_CONSTANT_ADDRESS_P(X) CONSTANT_ADDRESS_P(X)
+#define INDIRECTABLE_ADDRESS_P(X)  \
+  (CONSTANT_ADDRESS_P (X)						\
+   || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X))			\
+   || (GET_CODE (X) == PLUS						\
+       && GET_CODE (XEXP (X, 0)) == REG					\
+       && REG_OK_FOR_BASE_P (XEXP (X, 0))				\
+       && CONSTANT_ADDRESS_P (XEXP (X, 1))))
+#endif
+
+/* Non-zero if this is a valid address without indexing or indirection.  */
+#define NONINDIRECT_ADDRESS_P(X)  \
+  (CONSTANT_ADDRESS_P (X)						\
+   || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X))			\
+   || (GET_CODE (X) == PLUS						\
+       && GET_CODE (XEXP (X, 0)) == REG					\
+       && REG_OK_FOR_BASE_P (XEXP (X, 0))				\
+       && CONSTANT_ADDRESS_P (XEXP (X, 1))))
+
+/* Go to ADDR if X is a valid address not using indexing.
+   (This much is the easy part.)  */
+#define GO_IF_NONINDEXED_ADDRESS(X, ADDR)  \
+{ register rtx xfoob = (X);						\
+  if (GET_CODE (xfoob) == REG) goto ADDR;				\
+  if (NONINDIRECT_ADDRESS_P (xfoob)) goto ADDR;				\
+  xfoob = XEXP (X, 0);							\
+  if (GET_CODE (X) == MEM && INDIRECTABLE_ADDRESS_P (xfoob))		\
+    goto ADDR;								\
+  if ((GET_CODE (X) == PRE_DEC || GET_CODE (X) == POST_INC)		\
+      && GET_CODE (xfoob) == REG && REG_OK_FOR_BASE_P (xfoob))		\
+    goto ADDR; }
+
+/* 1 if PROD is either a reg times size of mode MODE
+   or just a reg, if MODE is just one byte.
+   This macro's expansion uses the temporary variables xfoo0 and xfoo1
+   that must be declared in the surrounding context.  */
+#define INDEX_TERM_P(PROD, MODE)   \
+(GET_MODE_SIZE (MODE) == 1						\
+ ? (GET_CODE (PROD) == REG && REG_OK_FOR_BASE_P (PROD))			\
+ : (GET_CODE (PROD) == MULT						\
+    &&									\
+    (xfoo0 = XEXP (PROD, 0), xfoo1 = XEXP (PROD, 1),			\
+     ((GET_CODE (xfoo0) == CONST_INT					\
+       && INTVAL (xfoo0) == GET_MODE_SIZE (MODE)			\
+       && GET_CODE (xfoo1) == REG					\
+       && REG_OK_FOR_INDEX_P (xfoo1))					\
+      ||								\
+      (GET_CODE (xfoo1) == CONST_INT					\
+       && INTVAL (xfoo1) == GET_MODE_SIZE (MODE)			\
+       && GET_CODE (xfoo0) == REG					\
+       && REG_OK_FOR_INDEX_P (xfoo0))))))
+
+/* Go to ADDR if X is the sum of a register
+   and a valid index term for mode MODE.  */
+#define GO_IF_REG_PLUS_INDEX(X, MODE, ADDR)	\
+{ register rtx xfooa;							\
+  if (GET_CODE (X) == PLUS)						\
+    { if (GET_CODE (XEXP (X, 0)) == REG					\
+	  && REG_OK_FOR_BASE_P (XEXP (X, 0))				\
+	  && (xfooa = XEXP (X, 1),					\
+	      INDEX_TERM_P (xfooa, MODE)))				\
+	goto ADDR;							\
+      if (GET_CODE (XEXP (X, 1)) == REG					\
+	  && REG_OK_FOR_BASE_P (XEXP (X, 1))				\
+	  && (xfooa = XEXP (X, 0),					\
+	      INDEX_TERM_P (xfooa, MODE)))				\
+	goto ADDR; } }
+
+#define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)  \
+{ register rtx xfoo, xfoo0, xfoo1;					\
+  GO_IF_NONINDEXED_ADDRESS (X, ADDR);					\
+  if (GET_CODE (X) == PLUS)						\
+    { /* Handle <address>[index] represented with index-sum outermost */\
+      xfoo = XEXP (X, 0);						\
+      if (INDEX_TERM_P (xfoo, MODE))					\
+	{ GO_IF_NONINDEXED_ADDRESS (XEXP (X, 1), ADDR); }		\
+      xfoo = XEXP (X, 1);						\
+      if (INDEX_TERM_P (xfoo, MODE))					\
+	{ GO_IF_NONINDEXED_ADDRESS (XEXP (X, 0), ADDR); }		\
+      /* Handle offset(reg)[index] with offset added outermost */	\
+      if (INDIRECTABLE_CONSTANT_ADDRESS_P (XEXP (X, 0)))		\
+	{ if (GET_CODE (XEXP (X, 1)) == REG				\
+	      && REG_OK_FOR_BASE_P (XEXP (X, 1)))			\
+	    goto ADDR;							\
+	  GO_IF_REG_PLUS_INDEX (XEXP (X, 1), MODE, ADDR); }		\
+      if (INDIRECTABLE_CONSTANT_ADDRESS_P (XEXP (X, 1)))		\
+	{ if (GET_CODE (XEXP (X, 0)) == REG				\
+	      && REG_OK_FOR_BASE_P (XEXP (X, 0)))			\
+	    goto ADDR;							\
+	  GO_IF_REG_PLUS_INDEX (XEXP (X, 0), MODE, ADDR); } } }
+
+/* Try machine-dependent ways of modifying an illegitimate address
+   to be legitimate.  If we find one, return the new, valid address.
+   This macro is used in only one place: `memory_address' in explow.c.
+
+   OLDX is the address as it was before break_out_memory_refs was called.
+   In some cases it is useful to look at this to decide what needs to be done.
+
+   MODE and WIN are passed so that this macro can use
+   GO_IF_LEGITIMATE_ADDRESS.
+
+   It is always safe for this macro to do nothing.  It exists to recognize
+   opportunities to optimize the output.
+
+   For the vax, nothing needs to be done.  */
+
+#define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN)  {}
+
+/* Go to LABEL if ADDR (a legitimate address expression)
+   has an effect that depends on the machine mode it is used for.
+   On the VAX, the predecrement and postincrement address depend thus
+   (the amount of decrement or increment being the length of the operand)
+   and all indexed address depend thus (because the index scale factor
+   is the length of the operand).  */
+#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)	\
+ { if (GET_CODE (ADDR) == POST_INC || GET_CODE (ADDR) == PRE_DEC)	\
+     goto LABEL; 							\
+   if (GET_CODE (ADDR) == PLUS)						\
+     { if (CONSTANT_ADDRESS_P (XEXP (ADDR, 0))				\
+	   && GET_CODE (XEXP (ADDR, 1)) == REG);			\
+       else if (CONSTANT_ADDRESS_P (XEXP (ADDR, 1))			\
+		&& GET_CODE (XEXP (ADDR, 0)) == REG);			\
+       else goto LABEL; }}
+
+/* Specify the machine mode that this machine uses
+   for the index in the tablejump instruction.  */
+#define CASE_VECTOR_MODE HImode
+
+/* Define this if the case instruction expects the table
+   to contain offsets from the address of the table.
+   Do not define this if the table should contain absolute addresses.  */
+#define CASE_VECTOR_PC_RELATIVE
+
+/* Define this if the case instruction drops through after the table
+   when the index is out of range.  Don't define it if the case insn
+   jumps to the default label instead.  */
+#define CASE_DROPS_THROUGH
+
+/* Specify the tree operation to be used to convert reals to integers.  */
+#define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
+
+/* This is the kind of divide that is easiest to do in the general case.  */
+#define EASY_DIV_EXPR TRUNC_DIV_EXPR
+
+/* Define this as 1 if `char' should by default be signed; else as 0.  */
+#define DEFAULT_SIGNED_CHAR 1
+
+/* This flag, if defined, says the same insns that convert to a signed fixnum
+   also convert validly to an unsigned one.  */
+#define FIXUNS_TRUNC_LIKE_FIX_TRUNC
+
+/* Max number of bytes we can move from memory to memory
+   in one reasonably fast instruction.  */
+#define MOVE_MAX 8
+
+/* Define this if zero-extension is slow (more than one real instruction).  */
+/* #define SLOW_ZERO_EXTEND */
+
+/* Nonzero if access to memory by bytes is slow and undesirable.  */
+#define SLOW_BYTE_ACCESS 0
+
+/* Define if shifts truncate the shift count
+   which implies one can omit a sign-extension or zero-extension
+   of a shift count.  */
+/* #define SHIFT_COUNT_TRUNCATED */
+
+/* Shift counts can be negative.  */
+#define NEGATIVE_SHIFT_COUNTS 1
+
+/* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
+   is done just by pretending it is already truncated.  */
+#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
+
+/* Specify the machine mode that pointers have.
+   After generation of rtl, the compiler makes no further distinction
+   between pointers and any other objects of this machine mode.  */
+#define Pmode SImode
+
+/* A function address in a call instruction
+   is a byte address (for indexing purposes)
+   so give the MEM rtx a byte's mode.  */
+#define FUNCTION_MODE QImode
+
+/* Compute the cost of computing a constant rtl expression RTX
+   whose rtx-code is CODE.  The body of this macro is a portion
+   of a switch statement.  If the code is computed here,
+   return it with a return statement.  Otherwise, break from the switch.  */
+
+#define CONST_COSTS(RTX,CODE) \
+  case CONST_INT:						\
+    /* Constant zero is super cheap due to clr instruction.  */	\
+    if (RTX == const0_rtx) return 0;				\
+    if ((unsigned) INTVAL (RTX) < 077) return 1;		\
+  case CONST:							\
+  case LABEL_REF:						\
+  case SYMBOL_REF:						\
+    return 3;							\
+  case CONST_DOUBLE:						\
+    return 5;
+
+/*
+ * We can use the BSD C library routines for the gnulib calls that are
+ * still generated, since that's what they boil down to anyways.
+ */
+
+#define UDIVSI3_LIBCALL "*udiv"
+#define UMODSI3_LIBCALL "*urem"
+
+/* Check a `double' value for validity for a particular machine mode.  */
+
+/* note that it is very hard to accidently create a number that fits in a
+   double but not in a float, since their ranges are almost the same */
+#define CHECK_FLOAT_VALUE(mode, d) \
+  if ((mode) == SFmode) \
+    { \
+      if ((d) > 1.7014117331926444e+38) \
+	{ error ("magnitude of constant too large for `float'"); \
+	  (d) = 1.7014117331926444e+38; } \
+      else if ((d) < -1.7014117331926444e+38) \
+	{ error ("magnitude of constant too large for `float'"); \
+	  (d) = -1.7014117331926444e+38; } \
+      else if (((d) > 0) && ((d) < 2.9387358770557188e-39)) \
+	{ warning ("`float' constant truncated to zero"); \
+	  (d) = 0.0; } \
+      else if (((d) < 0) && ((d) > -2.9387358770557188e-39)) \
+	{ warning ("`float' constant truncated to zero"); \
+	  (d) = 0.0; } \
+    }
+
+/* For future reference:
+   D Float: 9 bit, sign magnitude, excess 128 binary exponent
+            normalized 56 bit fraction, redundant bit not represented
+            approximately 16 decimal digits of precision
+
+   The values to use if we trust decimal to binary conversions:
+#define MAX_D_FLOAT 1.7014118346046923e+38
+#define MIN_D_FLOAT .29387358770557188e-38
+
+   G float: 12 bit, sign magnitude, excess 1024 binary exponent
+            normalized 53 bit fraction, redundant bit not represented
+            approximately 15 decimal digits precision
+
+   The values to use if we trust decimal to binary conversions:
+#define MAX_G_FLOAT .898846567431157e+308
+#define MIN_G_FLOAT .556268464626800e-308
+*/
+
+/* Tell final.c how to eliminate redundant test instructions.  */
+
+/* Here we define machine-dependent flags and fields in cc_status
+   (see `conditions.h').  No extra ones are needed for the vax.  */
+
+/* Store in cc_status the expressions
+   that the condition codes will describe
+   after execution of an instruction whose pattern is EXP.
+   Do not alter them if the instruction would not alter the cc's.  */
+
+#define NOTICE_UPDATE_CC(EXP, INSN) \
+{ if (GET_CODE (EXP) == SET)					\
+    { if (GET_CODE (SET_SRC (EXP)) == CALL)			\
+	CC_STATUS_INIT;						\
+      else if (GET_CODE (SET_DEST (EXP)) != PC)			\
+	{ cc_status.flags = 0;					\
+	  cc_status.value1 = SET_DEST (EXP);			\
+	  cc_status.value2 = SET_SRC (EXP); } }			\
+  else if (GET_CODE (EXP) == PARALLEL				\
+	   && GET_CODE (XVECEXP (EXP, 0, 0)) == SET		\
+	   && GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) != PC)	\
+    { cc_status.flags = 0;					\
+      cc_status.value1 = SET_DEST (XVECEXP (EXP, 0, 0));	\
+      cc_status.value2 = SET_SRC (XVECEXP (EXP, 0, 0)); }	\
+  /* PARALLELs whose first element sets the PC are aob, sob insns.	\
+     They do change the cc's.  So drop through and forget the cc's.  */ \
+  else CC_STATUS_INIT;						\
+  if (cc_status.value1 && GET_CODE (cc_status.value1) == REG	\
+      && cc_status.value2					\
+      && reg_overlap_mentioned_p (cc_status.value1, cc_status.value2))	\
+    cc_status.value2 = 0;					\
+  if (cc_status.value1 && GET_CODE (cc_status.value1) == MEM	\
+      && cc_status.value2					\
+      && GET_CODE (cc_status.value2) == MEM)			\
+    cc_status.value2 = 0; }
+/* Actual condition, one line up, should be that value2's address
+   depends on value1, but that is too much of a pain.  */
+
+#define OUTPUT_JUMP(NORMAL, FLOAT, NO_OV)  \
+{ if (cc_status.flags & CC_NO_OVERFLOW)				\
+    return NO_OV;						\
+  return NORMAL; }
+
+/* Control the assembler format that we output.  */
+
+/* Output at beginning of assembler file.  */
+
+#define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n");
+
+/* Output to assembler file text saying following lines
+   may contain character constants, extra white space, comments, etc.  */
+
+#define ASM_APP_ON "#APP\n"
+
+/* Output to assembler file text saying following lines
+   no longer contain unusual constructs.  */
+
+#define ASM_APP_OFF "#NO_APP\n"
+
+/* Output before read-only data.  */
+
+#define TEXT_SECTION_ASM_OP ".text"
+
+/* Output before writable data.  */
+
+#define DATA_SECTION_ASM_OP ".data"
+
+/* How to refer to registers in assembler output.
+   This sequence is indexed by compiler's hard-register-number (see above).  */
+
+#define REGISTER_NAMES \
+{"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \
+ "r9", "r10", "r11", "ap", "fp", "sp", "pc"}
+
+/* This is BSD, so it wants DBX format.  */
+
+#define DBX_DEBUGGING_INFO
+
+/* How to renumber registers for dbx and gdb.
+   Vax needs no change in the numeration.  */
+
+#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+
+/* Do not break .stabs pseudos into continuations.  */
+
+#define DBX_CONTIN_LENGTH 0
+
+/* This is the char to use for continuation (in case we need to turn
+   continuation back on).  */
+
+#define DBX_CONTIN_CHAR '?'
+
+/* Don't use the `xsfoo;' construct in DBX output; this system
+   doesn't support it.  */
+
+#define DBX_NO_XREFS
+
+/* Output the .stabs for a C `static' variable in the data section.  */
+#define DBX_STATIC_STAB_DATA_SECTION
+
+/* Vax specific: which type character is used for type double?  */
+
+#define ASM_DOUBLE_CHAR (TARGET_G_FLOAT ? 'g' : 'd')
+
+/* This is how to output the definition of a user-level label named NAME,
+   such as the label on a static function or variable NAME.  */
+
+#define ASM_OUTPUT_LABEL(FILE,NAME)	\
+  do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
+
+/* This is how to output a command to make the user-level label named NAME
+   defined for reference from other files.  */
+
+#define ASM_GLOBALIZE_LABEL(FILE,NAME)	\
+  do { fputs (".globl ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0)
+
+/* This is how to output a reference to a user-level label named NAME.  */
+
+#define ASM_OUTPUT_LABELREF(FILE,NAME)	\
+  fprintf (FILE, "_%s", NAME)
+
+/* This is how to output an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.  */
+
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)	\
+  fprintf (FILE, "%s%d:\n", PREFIX, NUM)
+
+/* This is how to store into the string LABEL
+   the symbol_ref name of an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.
+   This is suitable for output with `assemble_name'.  */
+
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
+  sprintf (LABEL, "*%s%d", PREFIX, NUM)
+
+/* This is how to output an assembler line defining a `double' constant.
+   It is .dfloat or .gfloat, depending.  */
+
+#define ASM_OUTPUT_DOUBLE(FILE,VALUE)  \
+  fprintf (FILE, "\t.%cfloat 0%c%.20e\n", ASM_DOUBLE_CHAR, \
+					  ASM_DOUBLE_CHAR, (VALUE))
+
+/* This is how to output an assembler line defining a `float' constant.  */
+
+#define ASM_OUTPUT_FLOAT(FILE,VALUE)  \
+  fprintf (FILE, "\t.float 0f%.20e\n", (VALUE))
+
+/* This is how to output an assembler line defining an `int' constant.  */
+
+#define ASM_OUTPUT_INT(FILE,VALUE)  \
+( fprintf (FILE, "\t.long "),			\
+  output_addr_const (FILE, (VALUE)),		\
+  fprintf (FILE, "\n"))
+
+/* Likewise for `char' and `short' constants.  */
+
+#define ASM_OUTPUT_SHORT(FILE,VALUE)  \
+( fprintf (FILE, "\t.word "),			\
+  output_addr_const (FILE, (VALUE)),		\
+  fprintf (FILE, "\n"))
+
+#define ASM_OUTPUT_CHAR(FILE,VALUE)  \
+( fprintf (FILE, "\t.byte "),			\
+  output_addr_const (FILE, (VALUE)),		\
+  fprintf (FILE, "\n"))
+
+/* This is how to output an assembler line for a numeric constant byte.  */
+
+#define ASM_OUTPUT_BYTE(FILE,VALUE)  \
+  fprintf (FILE, "\t.byte 0x%x\n", (VALUE))
+
+/* This is how to output an insn to push a register on the stack.
+   It need not be very fast code.  */
+
+#define ASM_OUTPUT_REG_PUSH(FILE,REGNO)  \
+  fprintf (FILE, "\tpushl %s\n", reg_names[REGNO])
+
+/* This is how to output an insn to pop a register from the stack.
+   It need not be very fast code.  */
+
+#define ASM_OUTPUT_REG_POP(FILE,REGNO)  \
+  fprintf (FILE, "\tmovl (sp)+,%s\n", reg_names[REGNO])
+
+/* This is how to output an element of a case-vector that is absolute.
+   (The Vax does not use such vectors,
+   but we must define this macro anyway.)  */
+
+#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
+  fprintf (FILE, "\t.long L%d\n", VALUE)
+
+/* This is how to output an element of a case-vector that is relative.  */
+
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)  \
+  fprintf (FILE, "\t.word L%d-L%d\n", VALUE, REL)
+
+/* This is how to output an assembler line
+   that says to advance the location counter
+   to a multiple of 2**LOG bytes.  */
+
+#define ASM_OUTPUT_ALIGN(FILE,LOG)  \
+  fprintf (FILE, "\t.align %d\n", (LOG))
+
+/* This is how to output an assembler line
+   that says to advance the location counter by SIZE bytes.  */
+
+#define ASM_OUTPUT_SKIP(FILE,SIZE)  \
+  fprintf (FILE, "\t.space %u\n", (SIZE))
+
+/* This says how to output an assembler line
+   to define a global common symbol.  */
+
+#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
+( fputs (".comm ", (FILE)),			\
+  assemble_name ((FILE), (NAME)),		\
+  fprintf ((FILE), ",%u\n", (ROUNDED)))
+
+/* This says how to output an assembler line
+   to define a local common symbol.  */
+
+#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
+( fputs (".lcomm ", (FILE)),			\
+  assemble_name ((FILE), (NAME)),		\
+  fprintf ((FILE), ",%d\n", (ROUNDED)))
+
+/* Store in OUTPUT a string (made with alloca) containing
+   an assembler-name for a local static variable named NAME.
+   LABELNO is an integer which is different for each call.  */
+
+#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO)	\
+( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10),	\
+  sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO)))
+
+/* Define the parentheses used to group arithmetic operations
+   in assembler code.  */
+
+#define ASM_OPEN_PAREN "("
+#define ASM_CLOSE_PAREN ")"
+
+/* Define results of standard character escape sequences.  */
+#define TARGET_BELL 007
+#define TARGET_BS 010
+#define TARGET_TAB 011
+#define TARGET_NEWLINE 012
+#define TARGET_VT 013
+#define TARGET_FF 014
+#define TARGET_CR 015
+
+/* Print an instruction operand X on file FILE.
+   CODE is the code from the %-spec that requested printing this operand;
+   if `%z3' was used to print operand 3, then CODE is 'z'.
+   On the Vax, the only code used is `#', indicating that either
+   `d' or `g' should be printed, depending on whether we're using dfloat
+   or gfloat.  */
+
+#define PRINT_OPERAND_PUNCT_VALID_P(CODE)				\
+  ((CODE) == '#')
+
+#define PRINT_OPERAND(FILE, X, CODE)  \
+{ if (CODE == '#') fputc (ASM_DOUBLE_CHAR, FILE);			\
+  else if (GET_CODE (X) == REG)						\
+    fprintf (FILE, "%s", reg_names[REGNO (X)]);				\
+  else if (GET_CODE (X) == MEM)						\
+    output_address (XEXP (X, 0));					\
+  else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode)	\
+    { union { double d; int i[2]; } u;					\
+      u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X);	\
+      fprintf (FILE, "$0%c%.20e", ASM_DOUBLE_CHAR, u.d); }		\
+  else { putc ('$', FILE); output_addr_const (FILE, X); }}
+
+/* Print a memory operand whose address is X, on file FILE.
+   This uses a function in output-vax.c.  */
+
+#define PRINT_OPERAND_ADDRESS(FILE, ADDR)  \
+ print_operand_address (FILE, ADDR)