treat pseudos just like memory

From-SVN: r37038

gcc/ChangeLog

+2000-10-24  Richard Henderson <rth@cygnus.com>, Aldy <aldyh@cygnus.com>
+
+        * config/mn10300/mn10300.h (PREFERRED_RELOAD_CLASS): Treat
+        pseudos just like memory.
+
 2000-10-24  Alexandre Oliva  <aoliva@redhat.com>
 
 	* combine.c (distribute_notes): Discard REG_LIBCALL and REG_RETVAL
@@ -8,6 +13,7 @@
 	* expr.c (do_store_flag): Don't crash if either side of a
 	comparison is error_mark_node.
 
+>>>>>>> 1.8059
 2000-10-24  Jakub Jelinek  <jakub@redhat.com>
 
 	* sibcall.c (purge_mem_unchanging_flag): New function.

gcc/config/mn10300/mn10300.h

@@ -381,11 +381,16 @@ enum reg_class {
    In general this is just CLASS; but on some machines
    in some cases it is preferable to use a more restrictive class.  */
 
-#define PREFERRED_RELOAD_CLASS(X,CLASS)			\
-  ((X) == stack_pointer_rtx && (CLASS) != SP_REGS	\
-   ? ADDRESS_OR_EXTENDED_REGS				\
-   : (GET_CODE (X) == MEM				\
-      ? LIMIT_RELOAD_CLASS (GET_MODE (X), CLASS)	\
+#define PREFERRED_RELOAD_CLASS(X,CLASS)				\
+  ((X) == stack_pointer_rtx && (CLASS) != SP_REGS		\
+   ? ADDRESS_OR_EXTENDED_REGS					\
+   : (GET_CODE (X) == MEM					\
+      || (GET_CODE (X) == REG					\
+	  && REGNO (X) >= FIRST_PSEUDO_REGISTER)		\
+      || (GET_CODE (X) == SUBREG				\
+	  && GET_CODE (SUBREG_REG (X)) == REG			\
+	  && REGNO (SUBREG_REG (X)) >= FIRST_PSEUDO_REGISTER)	\
+      ? LIMIT_RELOAD_CLASS (GET_MODE (X), CLASS)		\
       : (CLASS)))
 
 #define PREFERRED_OUTPUT_RELOAD_CLASS(X,CLASS) \