rs6000.h (EPILOGUE_USES): New, mark link register after reload.

	2001-01-07  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* config/rs6000/rs6000.h (EPILOGUE_USES): New, mark link register
	after reload.

From-SVN: r38790

gcc/ChangeLog

+2001-01-07  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
+
+	* config/rs6000/rs6000.h (EPILOGUE_USES): New, mark link register
+	after reload.
+
 2001-01-07  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* builtins.def (BUILT_IN_FPRINTF): New entry.

gcc/config/rs6000/rs6000.h

@@ -1559,6 +1559,14 @@ typedef struct rs6000_args
    its backpointer, which we maintain.  */
 #define EXIT_IGNORE_STACK	1
 
+/* Define this macro as a C expression that is nonzero for registers
+   that are used by the epilogue or the return' pattern.  The stack
+   and frame pointer registers are already be assumed to be used as
+   needed.  */
+
+#define	EPILOGUE_USES(REGNO)	\
+  (reload_completed && (REGNO) == LINK_REGISTER_REGNUM)
+
 /* This macro generates the assembly code for function exit,
    on machines that need it.  If FUNCTION_EPILOGUE is not defined
    then individual return instructions are generated for each