(check_dbra_loop): Fix error in previous change.

From-SVN: r6316

diff --git a/gcc/loop.c b/gcc/loop.c
index 631d1fc98f600b8dd725c930a515f67f37afdee7..60243f7755f6c986853f35335b15d014382e92fb 100644 (file)
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -5731,7 +5731,9 @@ check_dbra_loop (loop_end, insn_count, loop_start)
         case, the insn should have been moved out of the loop.  */
 
       if (num_mem_sets == 1)
-       reversible_mem_store = ! invariant_p (XEXP (loop_store_mems[0], 0));
+       reversible_mem_store
+         = (! unknown_address_altered
+            && ! invariant_p (XEXP (loop_store_mems[0], 0)));
 
       /* This code only acts for innermost loops.  Also it simplifies
         the memory address check by only reversing loops with