We should not strip subregs of non-scalars during shift expansion.

	* expmed.c (expand_shift_1): Only strip scalar integer subregs.

From-SVN: r196027

gcc/ChangeLog

+2013-02-13  David S. Miller  <davem@davemloft.net>
+
+	* expmed.c (expand_shift_1): Only strip scalar integer subregs.
+
 2013-02-13  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR target/56184

gcc/expmed.c

@@ -2116,8 +2116,8 @@ expand_shift_1 (enum tree_code code, enum machine_mode mode, rtx shifted,
 		       % GET_MODE_BITSIZE (mode));
       else if (GET_CODE (op1) == SUBREG
 	       && subreg_lowpart_p (op1)
-	       && INTEGRAL_MODE_P (GET_MODE (SUBREG_REG (op1)))
-	       && INTEGRAL_MODE_P (GET_MODE (op1)))
+	       && SCALAR_INT_MODE_P (GET_MODE (SUBREG_REG (op1)))
+	       && SCALAR_INT_MODE_P (GET_MODE (op1)))
 	op1 = SUBREG_REG (op1);
     }