pa.h (HAVE_PRE_INCREMENT): Disable when optimizing for a PA8000 class machine.

        * pa.h (HAVE_PRE_INCREMENT): Disable when optimizing for a PA8000
        class machine.
        (HAVE_PRE_DECREMENT, HAVE_POST_INCREMENT): Likewise.
        (HAVE_POST_DECREMENT): Likewise.

From-SVN: r26054

gcc/ChangeLog

+Mon Mar 29 11:50:34 1999  Jerry Quinn <jquinn@nortelnetworks.com>
+
+	* pa.h (HAVE_PRE_INCREMENT): Disable when optimizing for a PA8000
+	class machine.
+	(HAVE_PRE_DECREMENT, HAVE_POST_INCREMENT): Likewise.
+	(HAVE_POST_DECREMENT): Likewise.
+
 Mon Mar 29 08:24:43 1999  Bruce Korb <korb@datadesign.com>
 
 	* fixinc/mkfixinc.sh:  Heredoc portability problem

gcc/config/pa/pa.h

@@ -1378,13 +1378,16 @@ extern struct rtx_def *hppa_builtin_saveregs ();
 #define EXPAND_BUILTIN_SAVEREGS(ARGLIST) hppa_builtin_saveregs (ARGLIST)
 
 
-/* Addressing modes, and classification of registers for them.  */
+/* Addressing modes, and classification of registers for them. 
 
-#define HAVE_POST_INCREMENT 1
-#define HAVE_POST_DECREMENT 1
+   Using autoincrement addressing modes on PA8000 class machines is
+   not profitable.  */
 
-#define HAVE_PRE_DECREMENT 1
-#define HAVE_PRE_INCREMENT 1
+#define HAVE_POST_INCREMENT (pa_cpu < 8000)
+#define HAVE_POST_DECREMENT (pa_cpu < 8000)
+
+#define HAVE_PRE_DECREMENT (pa_cpu < 8000)
+#define HAVE_PRE_INCREMENT (pa_cpu < 8000)
 
 /* Macros to check register numbers against specific register classes.  */