catch a SUBREG containing a constant.

From-SVN: r31562

gcc/ChangeLog

+2000-01-22  Bernd Schmidt  <bernds@cygnus.co.uk>
+
+	* config/arm/arm.c (soft_df_operand): Reject SUBREGs containing a
+	constant.
+
 2000-01-21  Jim Wilson  <wilson@cygnus.com>
 
 	* fixinc/inclhack.tpl: Test for directory before trying to cd into it.

gcc/config/arm/arm.c

@@ -2307,6 +2307,9 @@ soft_df_operand (op, mode)
   if (mode != VOIDmode && GET_MODE (op) != mode)
     return FALSE;
 
+  if (GET_CODE (op) == SUBREG && CONSTANT_P (SUBREG_REG (op)))
+    return FALSE;
+  
   if (GET_CODE (op) == SUBREG)
     op = SUBREG_REG (op);