+2002-10-25 Ulrich Weigand <uweigand@de.ibm.com>
+
+ * config/s390/s390.c (s390_decompose_address): Do not range check the
+ displacement if base or index is the argument pointer register.
+
2002-10-24 Hans-Peter Nilsson <hp@bitrange.com>
PR other/3337
/* Allow integer constant in range. */
if (GET_CODE (disp) == CONST_INT)
{
- if (INTVAL (disp) < 0 || INTVAL (disp) >= 4096)
- return FALSE;
+ /* If the argument pointer is involved, the displacement will change
+ later anyway as the argument pointer gets eliminated. This could
+ make a valid displacement invalid, but it is more likely to make
+ an invalid displacement valid, because we sometimes access the
+ register save area via negative offsets to the arg pointer.
+ Thus we don't check the displacement for validity here. If after
+ elimination the displacement turns out to be invalid after all,
+ this is fixed up by reload in any case. */
+ if ((base && REGNO (base) == ARG_POINTER_REGNUM)
+ || (indx && REGNO (indx) == ARG_POINTER_REGNUM))
+ ;
+
+ else if (INTVAL (disp) < 0 || INTVAL (disp) >= 4096)
+ return FALSE;
}
/* In the small-PIC case, the linker converts @GOT12