--------- snip -------

 Downloaded from ftp://ftp.linux.org.uk/pub/armlinux/toolchain/src-2.95.3/gcc-2.95.3.diff.bz2

 Not sure what it fixes, but this appears to be The Patch used with gcc-2.95.3 on arm.

 --------- snip -------

 diff -urN gcc-2.95.3-orig/gcc/config/arm/arm.c gcc-2.95.3/gcc/config/arm/arm.c

 --- gcc-2.95.3-orig/gcc/config/arm/arm.c	Thu Jan 25 15:03:24 2001

 +++ gcc-2.95.3/gcc/config/arm/arm.c	Fri Jul 20 19:39:11 2001

 @@ -1529,27 +1529,34 @@

        return gen_rtx_PLUS (Pmode, base, offset);

      }

    else if (GET_CODE (orig) == LABEL_REF)

 -    current_function_uses_pic_offset_table = 1;

 -

 -  return orig;

 -}

 +    {

 +      current_function_uses_pic_offset_table = 1;

 -static rtx pic_rtx;

 +      if (NEED_PLT_GOT)

 +	{

 +	  rtx pic_ref, address = gen_reg_rtx (Pmode);

 +	  

 +	  emit_insn (gen_pic_load_addr (address, orig));

 +	  pic_ref = gen_rtx_PLUS (Pmode, pic_offset_table_rtx,

 +				  address);

 +	  emit_move_insn (address, pic_ref);

 +	  return address;

 +	}

 +    }

 -int

 -is_pic(x)

 -     rtx x;

 -{

 -  if (x == pic_rtx)

 -    return 1;

 -  return 0;

 +  return orig;

  }

 +/* Generate code to load the PIC register.  PROLOGUE is true if

 +   called from arm_expand_prologue (in which case we want the 

 +   generated insns at the start of the function);  false if called

 +   by an exception receiver that needs the PIC register reloaded

 +   (in which case the insns are just dumped at the current location).  */

  void

 -arm_finalize_pic ()

 +arm_finalize_pic (int prologue)

  {

  #ifndef AOF_ASSEMBLER

 -  rtx l1, pic_tmp, pic_tmp2, seq;

 +  rtx l1, pic_tmp, pic_tmp2, seq, pic_rtx;

    rtx global_offset_table;

    if (current_function_uses_pic_offset_table == 0)

 @@ -1578,7 +1585,10 @@

    seq = gen_sequence ();

    end_sequence ();

 -  emit_insn_after (seq, get_insns ());

 +  if (prologue)

 +    emit_insn_after (seq, get_insns ());

 +  else

 +    emit_insn (seq);

    /* Need to emit this whether or not we obey regdecls,

       since setjmp/longjmp can cause life info to screw up.  */

 @@ -5327,7 +5337,13 @@

    if (frame_pointer_needed)

      live_regs += 4;

 -  if (live_regs)

 +  if (live_regs == 1 && regs_ever_live[LR_REGNUM]

 +      && ! lr_save_eliminated && ! really_return)

 +    {

 +      output_asm_insn (reverse ? "ldr%?%D0\t%|lr, [%|sp}, #4"

 +      		       : "ldr%?%d0\t%|lr, [%|sp], #4", &operand);

 +    }

 +  else if (live_regs)

      {

        if (lr_save_eliminated || ! regs_ever_live[14])

          live_regs++;

 @@ -5446,7 +5462,7 @@

    rtx           x;

    length = strlen (name);

 -  alignlength = (length + 1) + 3 & ~3;

 +  alignlength = ((length + 1) + 3) & ~3;

    ASM_OUTPUT_ASCII (stream, name, length + 1);

    ASM_OUTPUT_ALIGN (stream, 2);

 @@ -5838,6 +5854,9 @@

    int store_arg_regs = 0;

    int volatile_func = (optimize > 0

  		       && TREE_THIS_VOLATILE (current_function_decl));

 +  rtx ip_rtx;

 +  int fp_offset = 0;

 +  rtx insn;

    /* Naked functions don't have prologues.  */

    if (arm_naked_function_p (current_function_decl))

 @@ -5859,11 +5878,59 @@

  	live_regs_mask |= 0x4000;

      }

 +  ip_rtx = gen_rtx_REG (SImode, IP_REGNUM);

 +

    if (frame_pointer_needed)

      {

 +      if (current_function_needs_context)

 +	{

 +	  /* The Static chain register is the same as the IP register

 +	     used as a scratch register during stack frame creation.

 +	     To get around this need to find somewhere to store IP

 +	     whilst the frame is being created.  We try the following

 +	     places in order:

 +	     

 +	       1. An unused argument register.

 +	       2. A slot on the stack above the frame.  (This only

 +	          works if the function is not a varargs function).

 +		  

 +	     If neither of these places is available, we abort (for now).  */

 +	  if (regs_ever_live[3] == 0)

 +	    {

 +	      insn = gen_rtx_REG (SImode, 3);

 +	      insn = gen_rtx_SET (SImode, insn, ip_rtx);

 +	      insn = emit_insn (insn);

 +	      RTX_FRAME_RELATED_P (insn) = 1;	  

 +	    }

 +	  else if (current_function_pretend_args_size == 0)

 +	    {

 +	      insn = gen_rtx_PRE_DEC (SImode, stack_pointer_rtx);

 +	      insn = gen_rtx_MEM (SImode, insn);

 +	      insn = gen_rtx_SET (VOIDmode, insn, ip_rtx);

 +	      insn = emit_insn (insn);

 +	      RTX_FRAME_RELATED_P (insn) = 1;

 +	      fp_offset = 4;

 +	    }

 +	  else

 +	    /* FIXME - the way to handle this situation is to allow

 +	       the pretend args to be dumped onto the stack, then

 +	       reuse r3 to save IP.  This would involve moving the

 +	       copying os SP into IP until after the pretend args

 +	       have been dumped, but this is not too hard.  */

 +	    error ("Unable to find a temporary location for static chanin register");

 +	}

 +

        live_regs_mask |= 0xD800;

 -      emit_insn (gen_movsi (gen_rtx_REG (SImode, 12),

 -			    stack_pointer_rtx));

 +      if (fp_offset)

 +	{

 +	  insn = gen_rtx_PLUS (SImode, stack_pointer_rtx, GEN_INT (fp_offset));

 +	  insn = gen_rtx_SET  (SImode, ip_rtx, insn);

 +	}

 +      else

 +	insn = gen_movsi (ip_rtx, stack_pointer_rtx);

 +      

 +       insn = emit_insn (insn);

 +       RTX_FRAME_RELATED_P (insn) = 1;

      }

    if (current_function_pretend_args_size)

 @@ -5927,9 +5994,31 @@

      }

    if (frame_pointer_needed)

 -    emit_insn (gen_addsi3 (hard_frame_pointer_rtx, gen_rtx_REG (SImode, 12),

 -			   (GEN_INT

 -			    (-(4 + current_function_pretend_args_size)))));

 +    {

 +      insn = GEN_INT (-(4 + current_function_pretend_args_size + fp_offset));

 +      insn = emit_insn (gen_addsi3 (hard_frame_pointer_rtx, ip_rtx, insn));

 +      RTX_FRAME_RELATED_P (insn) = 1;

 +      

 +      if (current_function_needs_context)

 +	{

 +	  /* Recover the static chain register.  */

 +	  if (regs_ever_live [3] == 0)

 +	    {

 +	      insn = gen_rtx_REG (SImode, 3);

 +	      insn = gen_rtx_SET (SImode, ip_rtx, insn);

 +	      insn = emit_insn (insn);

 +	      RTX_FRAME_RELATED_P (insn) = 1;	  

 +	    }

 +	  else /* if (current_function_pretend_args_size == 0) */

 +	    {

 +	      insn = gen_rtx_PLUS (SImode, hard_frame_pointer_rtx, GEN_INT (4));

 +	      insn = gen_rtx_MEM (SImode, insn);

 +	      insn = gen_rtx_SET (SImode, ip_rtx, insn);

 +	      insn = emit_insn (insn);

 +	      RTX_FRAME_RELATED_P (insn) = 1;	  

 +	    }

 +	}

 +    }

    if (amount != const0_rtx)

      {

 diff -urN gcc-2.95.3-orig/gcc/config/arm/arm.h gcc-2.95.3/gcc/config/arm/arm.h

 --- gcc-2.95.3-orig/gcc/config/arm/arm.h	Thu Jan 25 15:03:26 2001

 +++ gcc-2.95.3/gcc/config/arm/arm.h	Fri Jul 20 19:39:11 2001

 @@ -601,14 +601,20 @@

    (TREE_CODE (EXP) == STRING_CST        \

     && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))

 +#ifndef STRUCTURE_SIZE_BOUNDARY

  /* Every structures size must be a multiple of 32 bits.  */

  /* This is for compatibility with ARMCC.  ARM SDT Reference Manual

     (ARM DUI 0020D) page 2-20 says "Structures are aligned on word

     boundaries".  */

 -#ifndef STRUCTURE_SIZE_BOUNDARY

 -#define STRUCTURE_SIZE_BOUNDARY 32

 +/* Setting this to 32 produces more efficient code, but the value set in previous

 +   versions of this toolchain was 8, which produces more compact structures. The

 +   command line option -mstructure_size_boundary=<n> can be used to change this

 +   value.  */

 +#define STRUCTURE_SIZE_BOUNDARY arm_structure_size_boundary

  #endif

 +extern int arm_structure_size_boundary;

 +

  /* Used when parsing command line option -mstructure_size_boundary.  */

  extern const char * structure_size_string;

 @@ -768,6 +774,9 @@

  /* Specify the registers used for certain standard purposes.

     The values of these macros are register numbers.  */

 +/* Register which holds return address from a subroutine call.  */

 +#define LR_REGNUM		14

 +

  /* Define this if the program counter is overloaded on a register.  */

  #define PC_REGNUM		15

 @@ -777,6 +786,9 @@

  /* Base register for access to local variables of the function.  */

  #define FRAME_POINTER_REGNUM	25

 +/* Scratch register - used in all kinds of places, eg trampolines.  */

 +#define IP_REGNUM		12

 +

  /* Define this to be where the real frame pointer is if it is not possible to

     work out the offset between the frame pointer and the automatic variables

     until after register allocation has taken place.  FRAME_POINTER_REGNUM

 @@ -798,7 +810,7 @@

  /* The native (Norcroft) Pascal compiler for the ARM passes the static chain

     as an invisible last argument (possible since varargs don't exist in

     Pascal), so the following is not true.  */

 -#define STATIC_CHAIN_REGNUM	8

 +#define STATIC_CHAIN_REGNUM	12

  /* Register in which address to store a structure value

     is passed to a function.  */

 @@ -1248,7 +1260,12 @@

  {									\

    int volatile_func = arm_volatile_func ();				\

    if ((FROM) == ARG_POINTER_REGNUM && (TO) == HARD_FRAME_POINTER_REGNUM)\

 -    (OFFSET) = 0;							\

 +    {                                                                   \

 +      if (! current_function_needs_context || ! frame_pointer_needed)   \

 +        (OFFSET) = 0;                                                   \

 +      else                                                              \

 +        (OFFSET) = 4;                                                   \

 +    }                                                                   \

    else if ((FROM) == FRAME_POINTER_REGNUM				\

  	   && (TO) == STACK_POINTER_REGNUM)				\

      (OFFSET) = (current_function_outgoing_args_size			\

 @@ -1379,8 +1396,10 @@

     On the ARM, allow any integer (invalid ones are removed later by insn

     patterns), nice doubles and symbol_refs which refer to the function's

 -   constant pool XXX.  */

 -#define LEGITIMATE_CONSTANT_P(X)	(! label_mentioned_p (X))

 +   constant pool XXX.

 +

 +   When generating PIC code, allow anything.  */

 +#define LEGITIMATE_CONSTANT_P(X)	(flag_pic || ! label_mentioned_p (X))

  /* Symbols in the text segment can be accessed without indirecting via the

     constant pool; it may take an extra binary operation, but this is still

 @@ -1496,9 +1515,8 @@

  	      && INTVAL (op) <= 31)					\

  	    goto LABEL;							\

          }								\

 -      /* NASTY: Since this limits the addressing of unsigned byte loads */      \

        range = ((MODE) == HImode || (MODE) == QImode)                    \

 -              ? (arm_arch4 ? 256 : 4095) : 4096;                        \

 +              ? (((MODE) == HImode && arm_arch4) ? 256 : 4095) : 4096;  \

        if (code == CONST_INT && INTVAL (INDEX) < range			\

  	  && INTVAL (INDEX) > -range)  	      				\

          goto LABEL;							\

 @@ -1812,14 +1830,15 @@

     data addresses in memory.  */

  #define PIC_OFFSET_TABLE_REGNUM arm_pic_register

 -#define FINALIZE_PIC arm_finalize_pic ()

 +#define FINALIZE_PIC arm_finalize_pic (1)

 -/* We can't directly access anything that contains a symbol,

 +/* We can't directly access anything that contains a symbol or label,

     nor can we indirect via the constant pool.  */

  #define LEGITIMATE_PIC_OPERAND_P(X)				\

 -	(! symbol_mentioned_p (X)				\

 +	(! symbol_mentioned_p (X) && ! label_mentioned_p (X)	\

  	 && (! CONSTANT_POOL_ADDRESS_P (X)			\

 -	     || ! symbol_mentioned_p (get_pool_constant (X))))

 +	     || (! symbol_mentioned_p (get_pool_constant (X)))  \

 +		&& (! label_mentioned_p (get_pool_constant (X)))))

  /* We need to know when we are making a constant pool; this determines

     whether data needs to be in the GOT or can be referenced via a GOT

 @@ -2046,17 +2065,9 @@

    else output_addr_const(STREAM, X);					\

  }

 -/* Handles PIC addr specially */

  #define OUTPUT_INT_ADDR_CONST(STREAM,X) \

    {									\

 -    if (flag_pic && GET_CODE(X) == CONST && is_pic(X))			\

 -      {									\

 -	output_addr_const(STREAM, XEXP (XEXP (XEXP (X, 0), 0), 0));	\

 -	fputs(" - (", STREAM);						\

 -	output_addr_const(STREAM, XEXP (XEXP (XEXP (X, 0), 1), 0));	\

 -	fputs(")", STREAM);						\

 -      }									\

 -    else output_addr_const(STREAM, X);					\

 +    output_addr_const(STREAM, X);					\

  									\

      /* Mark symbols as position independent.  We only do this in the	\

        .text segment, not in the .data segment. */			\

 @@ -2170,8 +2181,7 @@

  int    arm_return_in_memory PROTO ((Tree));

  int    legitimate_pic_operand_p PROTO ((Rtx));

  Rtx    legitimize_pic_address PROTO ((Rtx, Mmode, Rtx));

 -int    is_pic PROTO ((Rtx));

 -void   arm_finalize_pic PROTO ((void));

 +void   arm_finalize_pic PROTO ((int));

  int    arm_rtx_costs RTX_CODE_PROTO ((Rtx, Rcode));

  int    arm_adjust_cost PROTO ((Rtx, Rtx, Rtx, int));

  int    const_double_rtx_ok_for_fpu PROTO ((Rtx));

 diff -urN gcc-2.95.3-orig/gcc/config/arm/arm.md gcc-2.95.3/gcc/config/arm/arm.md

 --- gcc-2.95.3-orig/gcc/config/arm/arm.md	Thu Jan 25 15:03:27 2001

 +++ gcc-2.95.3/gcc/config/arm/arm.md	Fri Jul 20 19:39:11 2001

 @@ -2629,7 +2629,8 @@

  			   : preserve_subexpressions_p ()));

        DONE;

      }

 -  if (CONSTANT_P (operands[1]) && flag_pic)

 +  if ((CONSTANT_P (operands[1]) || symbol_mentioned_p (operands[1])

 +        || label_mentioned_p (operands[1])) && flag_pic)

      operands[1] = legitimize_pic_address (operands[1], SImode,

  					  ((reload_in_progress

  					    || reload_completed)

 @@ -2721,6 +2722,15 @@

    return \"add%?\\t%0, %|pc, %0\";

  ")

 +(define_expand "builtin_setjmp_receiver"

 +  [(label_ref (match_operand 0 "" ""))]

 +  "flag_pic"

 +  "

 +{

 +  arm_finalize_pic (0);

 +  DONE;

 +}")

 +

  ;; If copying one reg to another we can set the condition codes according to

  ;; its value.  Such a move is common after a return from subroutine and the

  ;; result is being tested against zero.

 @@ -6184,15 +6194,20 @@

  	abort ();

        return \"\";

      }

 -  strcpy (pattern, \"stmfd\\t%m0!, {%1\");

 -  for (i = 1; i < XVECLEN (operands[2], 0); i++)

 +  if (XVECLEN (operands[2], 0) > 1)

      {

 -      strcat (pattern, \", %|\");

 -      strcat (pattern, reg_names[REGNO (XEXP (XVECEXP (operands[2], 0, i),

 +      strcpy (pattern, \"stmfd\\t%m0!, {%1\");

 +      for (i = 1; i < XVECLEN (operands[2], 0); i++)

 +        {

 +           strcat (pattern, \", %|\");

 +           strcat (pattern, reg_names[REGNO (XEXP (XVECEXP (operands[2], 0, i),

  					      0))]);

 +        }

 +      strcat (pattern, \"}\");

 +      output_asm_insn (pattern, operands);

      }

 -  strcat (pattern, \"}\");

 -  output_asm_insn (pattern, operands);

 +  else

 +    output_asm_insn (\"str\\t%1, [%m0, #-4]!\", operands);

    return \"\";

  }"

  [(set_attr "type" "store4")])

 diff -urN gcc-2.95.3-orig/gcc/config/arm/elf.h gcc-2.95.3/gcc/config/arm/elf.h

 --- gcc-2.95.3-orig/gcc/config/arm/elf.h	Mon May 31 10:21:53 1999

 +++ gcc-2.95.3/gcc/config/arm/elf.h	Fri Jul 20 19:39:11 2001

 @@ -167,15 +167,6 @@

  #define MULTILIB_DEFAULTS { "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork" }

  #endif

 -/* Setting this to 32 produces more efficient code, but the value set in previous

 -   versions of this toolchain was 8, which produces more compact structures. The

 -   command line option -mstructure_size_boundary=<n> can be used to change this

 -   value.  */

 -#undef  STRUCTURE_SIZE_BOUNDARY

 -#define STRUCTURE_SIZE_BOUNDARY arm_structure_size_boundary

 -

 -extern int arm_structure_size_boundary;

 -

  /* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS

     is a valid machine specific attribute for DECL.

     The attributes in ATTRIBUTES have previously been assigned to DECL.  */

 diff -urN gcc-2.95.3-orig/gcc/config/arm/linux-gas.h gcc-2.95.3/gcc/config/arm/linux-gas.h

 --- gcc-2.95.3-orig/gcc/config/arm/linux-gas.h	Mon Feb 22 17:47:57 1999

 +++ gcc-2.95.3/gcc/config/arm/linux-gas.h	Fri Jul 20 19:39:11 2001

 @@ -1,6 +1,6 @@

  /* Definitions of target machine for GNU compiler.

     ARM Linux-based GNU systems version.

 -   Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.

 +   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.

     Contributed by Russell King  <rmk92@ecs.soton.ac.uk>.

  This file is part of GNU CC.

 @@ -79,5 +79,7 @@

    register unsigned long _beg __asm ("a1") = (unsigned long) (BEG);	\

    register unsigned long _end __asm ("a2") = (unsigned long) (END);	\

    register unsigned long _flg __asm ("a3") = 0;				\

 -  __asm __volatile ("swi 0x9f0002");					\

 +  __asm __volatile ("swi 0x9f0002		@ sys_cacheflush"	\

 +		    : "=r" (_beg)					\

 +		    : "0" (_beg), "r" (_end), "r" (_flg));		\

  }

 diff -urN gcc-2.95.3-orig/gcc/config/arm/t-linux gcc-2.95.3/gcc/config/arm/t-linux

 --- gcc-2.95.3-orig/gcc/config/arm/t-linux	Fri Mar 26 16:30:20 1999

 +++ gcc-2.95.3/gcc/config/arm/t-linux	Fri Jul 20 20:46:19 2001

 @@ -1,6 +1,6 @@

  # Just for these, we omit the frame pointer since it makes such a big

  # difference.  It is then pointless adding debugging.

 -TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC

 +TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC 

  LIBGCC2_DEBUG_CFLAGS = -g0

  # Don't build enquire

 diff -urN gcc-2.95.3-orig/gcc/final.c gcc-2.95.3/gcc/final.c

 --- gcc-2.95.3-orig/gcc/final.c	Mon Mar 12 13:07:59 2001

 +++ gcc-2.95.3/gcc/final.c	Fri Jul 20 19:39:11 2001

 @@ -3652,8 +3652,9 @@

        output_addr_const (file, XEXP (x, 0));

        fprintf (file, "-");

 -      if (GET_CODE (XEXP (x, 1)) == CONST_INT

 -	  && INTVAL (XEXP (x, 1)) < 0)

 +      if ((GET_CODE (XEXP (x, 1)) == CONST_INT

 +	   && INTVAL (XEXP (x, 1)) < 0)

 +	  || GET_CODE (XEXP (x, 1)) != CONST_INT)

  	{

  	  fprintf (file, ASM_OPEN_PAREN);

  	  output_addr_const (file, XEXP (x, 1));

 diff -urN gcc-2.95.3-orig/gcc/function.c gcc-2.95.3/gcc/function.c

 --- gcc-2.95.3-orig/gcc/function.c	Thu Jan 25 15:03:15 2001

 +++ gcc-2.95.3/gcc/function.c	Fri Jul 20 19:39:10 2001

 @@ -3053,6 +3053,105 @@

     extracted by usage MEM with narrower mode. */

  static rtx purge_addressof_replacements;

 +/* Return 1 if X and Y are identical-looking rtx's.

 +   This is the Lisp function EQUAL for rtx arguments.  */

 +

 +int

 +rtx_equal_for_addressof_p (x, y)

 +     rtx x, y;

 +{

 +  register int i;

 +  register int j;

 +  register enum rtx_code code;

 +  register char *fmt;

 +

 +  if (x == y)

 +    return 1;

 +  if (x == 0 || y == 0)

 +    return 0;

 +

 +  code = GET_CODE (x);

 +  /* Rtx's of different codes cannot be equal.  */

 +  if (code != GET_CODE (y))

 +    return 0;

 +

 +  /* (MULT:SI x y) and (MULT:HI x y) are NOT equivalent.

 +     (REG:SI x) and (REG:HI x) are NOT equivalent. 

 +     But (MEM:SI x) and (MEM:HI x) are equivalent for our purposes.  */

 +

 +  if (code != MEM && (GET_MODE (x) != GET_MODE (y)))

 +    return 0;

 +

 +  /* REG, LABEL_REF, and SYMBOL_REF can be compared nonrecursively.  */

 +

 +  if (code == REG)

 +    return REGNO (x) == REGNO (y);

 +  else if (code == LABEL_REF)

 +    return XEXP (x, 0) == XEXP (y, 0);

 +  else if (code == SYMBOL_REF)

 +    return XSTR (x, 0) == XSTR (y, 0);

 +  else if (code == SCRATCH || code == CONST_DOUBLE)

 +    return 0;

 +

 +  /* Compare the elements.  If any pair of corresponding elements

 +     fail to match, return 0 for the whole things.  */

 +

 +  fmt = GET_RTX_FORMAT (code);

 +  for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)

 +    {

 +      switch (fmt[i])

 +	{

 +	case 'w':

 +	  if (XWINT (x, i) != XWINT (y, i))

 +	    return 0;

 +	  break;

 +

 +	case 'n':

 +	case 'i':

 +	  if (XINT (x, i) != XINT (y, i))

 +	    return 0;

 +	  break;

 +

 +	case 'V':

 +	case 'E':

 +	  /* Two vectors must have the same length.  */

 +	  if (XVECLEN (x, i) != XVECLEN (y, i))

 +	    return 0;

 +

 +	  /* And the corresponding elements must match.  */

 +	  for (j = 0; j < XVECLEN (x, i); j++)

 +	    if (rtx_equal_p (XVECEXP (x, i, j), XVECEXP (y, i, j)) == 0)

 +	      return 0;

 +	  break;

 +

 +	case 'e':

 +	  if (rtx_equal_p (XEXP (x, i), XEXP (y, i)) == 0)

 +	    return 0;

 +	  break;

 +

 +	case 'S':

 +	case 's':

 +	  if (strcmp (XSTR (x, i), XSTR (y, i)))

 +	    return 0;

 +	  break;

 +

 +	case 'u':

 +	  /* These are just backpointers, so they don't matter.  */

 +	  break;

 +

 +	case '0':

 +	  break;

 +

 +	  /* It is believed that rtx's at this level will never

 +	     contain anything but integers and other rtx's,

 +	     except for within LABEL_REFs and SYMBOL_REFs.  */

 +	default:

 +	  abort ();

 +	}

 +    }

 +  return 1;

 +}

 +

  /* Helper function for purge_addressof.  See if the rtx expression at *LOC

     in INSN needs to be changed.  If FORCE, always put any ADDRESSOFs into

     the stack.  */

 @@ -3133,7 +3232,7 @@

  	      for (tem = purge_bitfield_addressof_replacements;

  		   tem != NULL_RTX;

  		   tem = XEXP (XEXP (tem, 1), 1))

 -		if (rtx_equal_p (x, XEXP (tem, 0)))

 +		if (rtx_equal_for_addressof_p (x, XEXP (tem, 0)))

  		  {

  		    *loc = XEXP (XEXP (tem, 1), 0);

  		    return;

 @@ -3143,7 +3242,7 @@

  	      for (tem = purge_addressof_replacements;

  		   tem != NULL_RTX;

  		   tem = XEXP (XEXP (tem, 1), 1))

 -		if (rtx_equal_p (XEXP (x, 0), XEXP (tem, 0)))

 +		if (rtx_equal_for_addressof_p (XEXP (x, 0), XEXP (tem, 0)))

  		  {

  		    rtx z = XEXP (XEXP (tem, 1), 0);

 diff -urN gcc-2.95.3-orig/gcc/jump.c gcc-2.95.3/gcc/jump.c

 --- gcc-2.95.3-orig/gcc/jump.c	Thu Oct 21 08:24:03 1999

 +++ gcc-2.95.3/gcc/jump.c	Fri Jul 20 19:39:10 2001

 @@ -115,7 +115,7 @@

  static rtx delete_unreferenced_labels	PROTO((rtx));

  static void delete_noop_moves		PROTO((rtx));

  static int calculate_can_reach_end	PROTO((rtx, int, int));

 -static int duplicate_loop_exit_test	PROTO((rtx));

 +static int duplicate_loop_exit_test	PROTO((rtx, int));

  static void find_cross_jump		PROTO((rtx, rtx, int, rtx *, rtx *));

  static void do_cross_jump		PROTO((rtx, rtx, rtx));

  static int jump_back_p			PROTO((rtx, rtx));

 @@ -338,7 +338,7 @@

  	      && simplejump_p (temp1))

  	    {

  	      temp = PREV_INSN (insn);

 -	      if (duplicate_loop_exit_test (insn))

 +	      if (duplicate_loop_exit_test (insn, after_regscan))

  		{

  		  changed = 1;

  		  next = NEXT_INSN (temp);

 @@ -2548,8 +2548,9 @@

     values of regno_first_uid and regno_last_uid.  */

  static int

 -duplicate_loop_exit_test (loop_start)

 +duplicate_loop_exit_test (loop_start, after_regscan)

       rtx loop_start;

 +     int after_regscan;

  {

    rtx insn, set, reg, p, link;

    rtx copy = 0, first_copy = 0;

 @@ -2662,6 +2663,9 @@

  	    reg_map[REGNO (reg)] = gen_reg_rtx (GET_MODE (reg));

  	  }

        }

 +

 +  if (after_regscan)

 +    reg_scan_update (exitcode, lastexit, max_reg);

    /* Now copy each insn.  */

    for (insn = exitcode; insn != lastexit; insn = NEXT_INSN (insn))

 diff -urN gcc-2.95.3-orig/gcc/varasm.c gcc-2.95.3/gcc/varasm.c

 --- gcc-2.95.3-orig/gcc/varasm.c	Mon Feb 19 15:02:02 2001

 +++ gcc-2.95.3/gcc/varasm.c	Fri Jul 20 19:39:11 2001

 @@ -3286,7 +3286,10 @@

  	  value->un.addr.offset = - INTVAL (XEXP (x, 1));

  	}

        else

 -	abort ();

 +	{

 +	  value->un.addr.base = x;

 +	  value->un.addr.offset = 0;

 +	}

        break;

      default: