reload.c (find_reloads, case '0'): Reject matching a non-offsettable address…

reload.c (find_reloads, case '0'): Reject matching a non-offsettable address where an offsettable address is required.

        * reload.c (find_reloads, case '0'): Reject matching a non-offsettable
        address where an offsettable address is required.
Fixes 68k bootstrap problem.

From-SVN: r14948

gcc/ChangeLog

+Tue Aug 26 18:50:32 1997  Jim Wilson  <wilson@cygnus.com>
+
+	* reload.c (find_reloads, case '0'): Reject matching a non-offsettable
+	address where an offsettable address is required.
+
 Tue Aug 26 17:54:56 1997  Michael P. Hayes  (michaelh@ongaonga.chch.cri.nz>
 
 	* loop.c (check_final_value): Don't miss a biv increment in a

gcc/reload.c

@@ -2865,7 +2865,18 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p)
 		        [(i == commutative || i == commutative + 1)
 			 ? 2*commutative + 1 - i : i])
 		    : operands_match[c][i])
-		  win = this_alternative_win[c];
+		  {
+		    /* If we are matching a non-offsettable address where an
+		       offsettable address was expected, then we must reject
+		       this combination, because we can't reload it.  */
+		    if (this_alternative_offmemok[c]
+			&& GET_CODE (recog_operand[c]) == MEM
+			&& this_alternative[c] == (int) NO_REGS
+			&& ! this_alternative_win[c])
+		      bad = 1;
+
+		    win = this_alternative_win[c];
+		  }
 		else
 		  {
 		    /* Operands don't match.  */