(check_dbra_loop): Fix error in previous change.

From-SVN: r6316

(check_dbra_loop): Fix error in previous change.
From-SVN: r6316
0c847d7d · Richard Kenner · 9e69be8c · 0c847d7d
Commit 0c847d7d authored Dec 25, 1993 by Richard Kenner
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gcc/loop.c
+3 -1

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--- 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