patch for dwarf2out.c, aranges corruption for non-mips 64 bit targets

[Jim Wilson]

I have checked in this patch.

Gcc was incorrectly padding the arange section when PTR_SIZE == 8 and
DWARF_OFFSET_SIZE == 4, which is true for all non-mips 64 bit targets.
The problem was that PTR_SIZE was used where DWARF_OFFSET_SIZE should have
been used.  The following patch corrects this.

Thu Aug 26 20:36:30 1999  Jim Wilson  <wilson@cygnus.com>

	* dwarf2out.c (output_aranges): Check DWARF_OFFSET_SIZE not PTR_SIZE
	when emitting alignment padding.  Emit padding byte of 0 instead of 4.

Index: dwarf2out.c
===================================================================
RCS file: /cvs/cvsfiles/devo/gcc/dwarf2out.c,v
retrieving revision 1.114
diff -p -r1.114 dwarf2out.c
*** dwarf2out.c	1999/08/27 02:40:16	1.114
--- dwarf2out.c	1999/08/27 03:35:50
*************** output_aranges ()
*** 5675,5682 ****
  	     ASM_COMMENT_START);
  
    fputc ('\n', asm_out_file);
!   ASM_OUTPUT_DWARF_DATA4 (asm_out_file, 4);
!   if (PTR_SIZE == 8)
      fprintf (asm_out_file, ",0,0");
  
    if (flag_debug_asm)
--- 5675,5688 ----
  	     ASM_COMMENT_START);
  
    fputc ('\n', asm_out_file);
!   /* We need to align to twice the pointer size here.
!      If DWARF_OFFSET_SIZE == 4, then we have emitted 12 bytes, and need 4
!      bytes of padding to align for either 4 or 8 byte pointers.  */
!   ASM_OUTPUT_DWARF_DATA4 (asm_out_file, 0);
!   /* If DWARF_OFFSET_SIZE == 8, then we have emitted 20 bytes, and need 12
!      bytes of padding to align for 8 byte pointers.  We have already emitted
!      4 bytes of padding, so emit 8 more here.  */
!   if (DWARF_OFFSET_SIZE == 8)
      fprintf (asm_out_file, ",0,0");
  
    if (flag_debug_asm)