avr.h (BASE_REG_CLASS): Don't permit to use X register as pointer after reload.

	* config/avr/avr.h (BASE_REG_CLASS): Don't permit to use X
	register as pointer after reload.

From-SVN: r76216

gcc/ChangeLog

+2004-01-20  Denis Chertykov  <denisc@overta.ru>
+
+	* config/avr/avr.h (BASE_REG_CLASS): Don't permit to use X
+	register as pointer after reload.
+
 2004-01-20  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
 
 	PR optimization/12440

gcc/config/avr/avr.h

 /* Definitions of target machine for GNU compiler,
    for ATMEL AVR at90s8515, ATmega103/103L, ATmega603/603L microcontrollers.
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
+   Free Software Foundation, Inc.
    Contributed by Denis Chertykov (denisc@overta.ru)
 
 This file is part of GCC.
@@ -560,7 +561,7 @@ enum reg_class {
    choose a class which is "minimal", meaning that no smaller class
    also contains the register.  */
 
-#define BASE_REG_CLASS POINTER_REGS
+#define BASE_REG_CLASS (reload_completed ? BASE_POINTER_REGS : POINTER_REGS)
 /* A macro whose definition is the name of the class to which a valid
    base register must belong.  A base register is one used in an
    address which is the register value plus a displacement.  */