PR rtl-optimization/40710

[pf3gnuchains/gcc-fork.git] / gcc / lower-subreg.c

diff --git a/gcc/lower-subreg.c b/gcc/lower-subreg.c
index 69b038b..c8947f9 100644 (file)
--- a/gcc/lower-subreg.c
+++ b/gcc/lower-subreg.c
@@ -1,5 +1,5 @@
 /* Decompose multiword subregs.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
    Contributed by Richard Henderson <rth@redhat.com>
                  Ian Lance Taylor <iant@google.com>
 
@@ -922,7 +922,7 @@ find_decomposable_shift_zext (rtx insn)
     }
   else /* left or right shift */
     {
-      if (GET_CODE (XEXP (op, 1)) != CONST_INT
+      if (!CONST_INT_P (XEXP (op, 1))
          || INTVAL (XEXP (op, 1)) < BITS_PER_WORD
          || GET_MODE_BITSIZE (GET_MODE (op_operand)) != 2 * BITS_PER_WORD)
        return 0;