1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/cse.c b/gcc/cse.c
index 0bfd7ff..99949f0 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -3643,13 +3643,13 @@ fold_rtx (rtx x, rtx_insn *insn)
 
 	      if (code == PLUS && const_arg1 == inner_const
 		  && ((HAVE_PRE_INCREMENT
-			  && exact_log2 (INTVAL (const_arg1)) >= 0)
+			  && pow2p_hwi (INTVAL (const_arg1)))
 		      || (HAVE_POST_INCREMENT
-			  && exact_log2 (INTVAL (const_arg1)) >= 0)
+			  && pow2p_hwi (INTVAL (const_arg1)))
 		      || (HAVE_PRE_DECREMENT
-			  && exact_log2 (- INTVAL (const_arg1)) >= 0)
+			  && pow2p_hwi (- INTVAL (const_arg1)))
 		      || (HAVE_POST_DECREMENT
-			  && exact_log2 (- INTVAL (const_arg1)) >= 0)))
+			  && pow2p_hwi (- INTVAL (const_arg1)))))
 		break;
 
 	      /* ??? Vector mode shifts by scalar