(check_dbra_loop): Fix error in previous change.

From-SVN: r6316
1993-12-25 12:37:10 -05:00 · 1993-12-25 12:37:10 -05:00 · 0c847d7db5
parent 9e69be8c65
commit 0c847d7db5
1 changed files with 3 additions and 1 deletions
--- 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