contrib/gcc/var-tracking.c

47    (used for adjusting offset of variables addressed using stack pointer),
51    i.e. it is a list of triplets (reg, decl, offset) where decl is
52    REG_EXPR (reg) and offset is REG_OFFSET (reg).  The linked list is used for
180   HOST_WIDE_INT offset;
186   /* Adjustment of stack offset.  */
233   /* The offset in the variable.  */
234   HOST_WIDE_INT offset;
480   HOST_WIDE_INT offset;
483   offset = VTI (bb)->in.stack_adjust;
487 	offset += VTI (bb)->mos[i].u.adjust;
493 		= adjust_stack_reference (VTI (bb)->mos[i].u.loc, -offset);
497   VTI (bb)->out.stack_adjust = offset;
668 attrs_list_member (attrs list, tree decl, HOST_WIDE_INT offset)
671     if (list->decl == decl && list->offset == offset)
679 attrs_list_insert (attrs *listp, tree decl, HOST_WIDE_INT offset, rtx loc)
686   list->offset = offset;
704       n->offset = src->offset;
717       if (!attrs_list_member (*dstp, src->decl, src->offset))
718 	attrs_list_insert (dstp, src->decl, src->offset, src->loc);
750       new_var->var_part[i].offset = var->var_part[i].offset;
828   HOST_WIDE_INT offset = REG_OFFSET (loc);
834     if (node->decl == decl && node->offset == offset)
837     attrs_list_insert (&set->regs[REGNO (loc)], decl, offset, loc);
838   set_variable_part (set, loc, decl, offset);
852   HOST_WIDE_INT offset = REG_OFFSET (loc);
862       if (node->decl != decl || node->offset != offset)
864 	  delete_variable_part (set, node->loc, node->decl, node->offset);
875     clobber_variable_part (set, loc, decl, offset);
892       HOST_WIDE_INT offset = REG_OFFSET (loc);
896       clobber_variable_part (set, NULL, decl, offset);
902       delete_variable_part (set, node->loc, node->decl, node->offset);
919       delete_variable_part (set, node->loc, node->decl, node->offset);
933   HOST_WIDE_INT offset = INT_MEM_OFFSET (loc);
937   set_variable_part (set, loc, decl, offset);
951   HOST_WIDE_INT offset = INT_MEM_OFFSET (loc);
956     clobber_variable_part (set, NULL, decl, offset);
968   HOST_WIDE_INT offset = INT_MEM_OFFSET (loc);
972     clobber_variable_part (set, NULL, decl, offset);
973   delete_variable_part (set, loc, decl, offset);
1015 /* Information for merging lists of locations for a given offset of variable.
1100       if (src->var_part[i].offset == dst->var_part[j].offset)
1105       else if (src->var_part[i].offset < dst->var_part[j].offset)
1129 	  && src->var_part[i].offset == dst->var_part[j].offset)
1219 	  dst->var_part[k].offset = dst->var_part[j].offset;
1226 		&& src->var_part[i].offset < dst->var_part[j].offset)
1233 		&& src->var_part[i].offset > dst->var_part[j].offset)
1252 	  dst->var_part[k].offset = src->var_part[i].offset;
1326       if (var1->var_part[i].offset != var2->var_part[i].offset)
1546 /* Return true if OFFSET is a valid offset for a register or memory
1553 offset_valid_for_tracked_p (HOST_WIDE_INT offset)
1555   return (-MAX_VAR_PARTS < offset) && (offset < MAX_VAR_PARTS);
1562 same_variable_part_p (rtx loc, tree expr, HOST_WIDE_INT offset)
1589   return (expr == expr2 && offset == offset2);
1934       fprintf (dump_file, "+" HOST_WIDE_INT_PRINT_DEC, list->offset);
1952       fprintf (dump_file, "    offset %ld\n",
1953 	       (long) var->var_part[i].offset);
2070 find_variable_location_part (variable var, HOST_WIDE_INT offset,
2081       if (var->var_part[pos].offset < offset)
2091   if (pos < var->n_var_parts && var->var_part[pos].offset == offset)
2098    part is specified by variable's declaration DECL and offset OFFSET and the
2102 set_variable_part (dataflow_set *set, rtx loc, tree decl, HOST_WIDE_INT offset)
2119       var->var_part[0].offset = offset;
2131       pos = find_variable_location_part (var, offset, &inspos);
2171 	  var->var_part[pos].offset = offset;
2211    offset OFFSET.  */
2215 		      HOST_WIDE_INT offset)
2227       int pos = find_variable_location_part (var, offset, NULL);
2254 			      && anode->offset == offset)
2262 		  delete_variable_part (set, node->loc, decl, offset);
2270    part is specified by variable's declaration DECL and offset OFFSET and the
2275 		      HOST_WIDE_INT offset)
2284       int pos = find_variable_location_part (var, offset, NULL);
2384       if (last_limit < var->var_part[i].offset)
2389       else if (last_limit > var->var_part[i].offset)
2391       offsets[n_var_parts] = var->var_part[i].offset;
2399 	if (last_limit <= var->var_part[j].offset)
2406 	  && last_limit == var->var_part[j].offset)
2731 /* If there is a declaration and offset associated with register/memory RTL
2732    assign declaration to *DECLP and offset to *OFFSETP, and return true.  */
2771       HOST_WIDE_INT offset;
2786       if (!vt_get_decl_and_offset (incoming, &decl, &offset))
2787 	if (!vt_get_decl_and_offset (decl_rtl, &decl, &offset))
2801 			     parm, offset, incoming);
2802 	  set_variable_part (out, incoming, parm, offset);
2805 	set_variable_part (out, incoming, parm, offset);